Post on 15-Dec-2015
transcript
SIMPLY SMARTER™
INDUSTRIAL PROCESSCONTROL SOLUTIONS
2
Industrial Solutions: Introduction
Purpose• Introduce Intersil solutions for industrial control applications
Objectives• Overview of industrial control systems• Review typical industrial control block• Overview of industrial sensors• Present Intersil feature products with select application
circuits
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Industrial Process Control
Basic Process Control• PLC: Programmable Logic Controller• PAC: Programmable Automation
ControllerNetworked Control System• DCS: Distributed Control System• SCADA: Supervisory Control and
Data Acquisition Integrated Process Control• PAS: Process Automation System• CPAS: Collaborative Process
Automation SystemBroad coverage across Intersil’s product portfolio• Op amps• Data converters• Switches and multiplexers• RS-485/422 interfaces• Voltage references• Digital potentiometers (DCPs)• Real time clocks• Switching and linear regulators• Isolated power• Voltage monitoring
Power Supply
Programmable Controller
Power Supply
Sensors
Servo Drive
Distributed I/Os
CANopen Master Module
LCD Display Unit
Servo Drive
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PLC/DCS Industrial Control Elements
I/O intensive• 1 to 256 digital or analog input and output cards per
control module
Analog input sensor modules • Temperature, pressure, flow, vibration, position,
torque, motion, power, motors, lighting
Output modules • Valves, switches, process control set-points, motor
drives velocity and position, power and safety controls, lighting
Communication• Fieldbus, Profibus, HART, Modibus, Ethernet, BACnet,
and more• RS485, RS422 built ports common to most systems
Power• Core micro and digital I/O power• Multiple voltage sources – analog modules, subsystem
Common Analog NeedsHigh Precision• Low Drift, Low Noise’• High Resolution
High Density/Low Power• High channel count• Small Packaging
Flexible Power Sources
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Industrial Control: Intersil Products Overview
ANALOG SIGNAL OUTPUT MODULE
DAC
Voltage ReferenceISL21009ISL21090
Buffer, Filters, Span Drivers
+V
-V
+V
-V40V Op AmpsISL28217ISL28207ISL28127ISL28218ISL28208
5V Op AmpsISL28276ISL28133/233 /433ISL28134ISL28214
FET Drivers PWM Control
1 of n DAC
MUX
4:1 MUXDG408DG409
PrecisionAmps
PrecisionAmps
TemperatureSensors
Pressure
Flow Sensors
Force orStrainSensors
Sensor Modules
Microcontroller
Sensor Compensation
Power
Current
ADC
40V Op AmpsISL28210ISL28217ISL28207ISL28127ISL28218ISL28208
Gain Amplifiers1 of n ADC
PrecisionAmps
+V
VOLTAGE REFERENCEISL21009ISL21090
MUX
-V
PrecisionAmps
+V
-V
Active Filters
5V Op AmpsISL28276ISL28133 / 233ISL28134ISL28214
Instrumentation AmpsEL8170/8173ISL28210ISL28217 (3 amps discrete)
ANALOG SIGNAL INPUT MODULECONTROL MODULE
RTC
Voltage Monitors & Watchdog
InterfaceRS-232RS-485
Actuators Motors
Control loops 4-20mA
FET drive
Switching RegulatorsILS85033, ISL8022, ISL8088
LDOISL80101, ISL80111
Power monitorISL88011, ISL88041
Power sequencerISL8700, ISL8705A
PWM ControllersISL8107, ISL6420, ISL8112 & ISL6441Vibration
RS-485ISL317xE, 3.3VISL314xE, 5V
RS232 / RS485 Dual ProtocolISL81334, 5V 2 chISL41334, 5V 2 chISL81387, 5V 1 chISL41387, 5V 1 chISL3330, 3.3V 1 chISL3331, 3.3V 1 chISL3332, 3.3V 2 chISL3333, 3.3V 2 ch
RS-232ISL4221EIRZISL3232EIRZISL4243EIRZ
RTCISL12022, ISL12023ISL12020M. ISL12022MISL12057 , ISL12058, ISL12059
DG408 8:1 MUXDG409 Diff 4:1 MUX
Isolated ControllersISL6842, ISL6721
Intersil Solutions for Industrial Control Applications
Precision AmpsISL28133, ISL28217
Voltage ReferenceISL21060, ISL21009 ISL60002, ISL21090
Digital Potentiometers
Core & I/O Power
SW Controller
ISL223x4 ISL224x4ISL223x6, ISL22317ISL96017, ISL95811
System Power
SwitchingRegulator
LDOV
V
Isolated Power
Isolated Power
System Power
V
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Sensor Amplifier Electrical Environment
ADCSignalSensor
AmpFilter
Amp
Input common mode disturbances come from:• Sensor contact with conductive surfaces• External transient sources • Earth ground disturbances
PowerSupply
Input differential disturbances come from:• Electrical imbalances within the sensor• External transient sources • Externally coupled and internal sensor noise
sources
Precision VREF
Get more useful ADC bits by:• Minimizing output noise• Minimizing output DC offset and
drift • Maximizing output voltage swing
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100MHz
1MHz
10KHz
20kHz - 2MHz Piezo Ultrasound
Sonar RangingFetal Imaging
High Speed PhotodiodeBar Code Scanner
Photo-diode
Smoke DetectionPosition
Magnetic Stripe
TransducerCard Readers
100Hz
1Hz
0.1Hz
Skin ElectrodeECG/EEG
Freq
uen
cy
Piezo Absolute PressureSensors
Weigh ScaleInfusion Pump
Electro ChemicalpH Probes
D
C
Piezo PressureSensors
Blood PressureMuscle/Bone
injury
Temperature
PTCThermo-couple
Sensor Amplifier Bandwidth Range
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Sensor Module Overview
Sensor modules measure a wide range of physical phenomenonSensor and application accuracy requirements can vary significantlyAmplifier selection is critical to achieving performance
Physical Sensor Type Measure ImpedenceAmplifier
TechnologyPhysical Sensor Type Measure Impedence
Amplifier
Technology
Thermocouple Voltage Low Bipolar CurrentHi / Lo Current Shunt
Voltage Low Bipolar
RTD Resistance Low to Med Bipolar LVDT AC Voltage Low BipolarThermister Resistance Low to High JFET, CMOS Piezeo Electric Charge, Voltage High JFET, CMOSSilicon Voltage Low Bipolar Microphone Voltage Low Bipolar
IR Thermal Sensor Current High JFET, CMOS Motor SensorVoltage, CurrentResistance
Low Bipolar
Thermo Pile Voltage Low Bipolar Accelorometers Voltage Low Bipolar
Load Cell / Bridge Resistance Low Bipolar Ph Electrode Charge High JFET, CMOSStrain Guage Resistance Low to Med Bipolar Solution Conductivity Resistance Med JFET, CMOSMechanical Diaphram Voltage, Resistance Low to Med Bipolar CO Sensor Charge, Voltage High JFET, CMOSPiezeo Electric Charge, Voltage High JFET, CMOS Turbidity (Photodiode) Charge High JFET, CMOS
Differential Pressure Voltage, Resistance Low to Med Bipolar Colorimeter (Photodiode) Charge High JFET, CMOS
Mass Flow (Temp) Resistance Low Bipolar Light / IR Photodiode Charge High JFET, CMOS
Hot Wire Annometer Resistance Low Bipolar Moisture / Capacitance Capacitance High JFET, CMOSMagnetic Flow AC Voltage Low Bipolar Infrared detector Charge High JFET, CMOS
Ultrasound Doppler Frequency Med Bipolar Hall Effect Voltage Low BipolarMechanical Turbine Voltage Low Bipolar Magneto Resistive Resistance Low, Med Bipolar
Temperature
Force /Weight
Pressure
Flow
Motion,
Vibration
Chemical
Humidity
Magnetic
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How Do You Select the Right Amplifier?
+
-
V+
V-
Sensor Characteristics?Output Voltage RangeOutput Current RangeSensor ResistanceSensor CapacitanceSupply Voltage, Bias RequirementsAmplifier Input Signal?Voltage or CurrentAmplitude, FrequencySignal to Noise, Temperature DriftBias Voltage Ground SensingPositive Rail Sensing
Output Requirements?Accuracy, Noise, DriftRload, Cload, Vout or IoutFrequency, AmplitudeSettling Time, THDRail to Rail
Supply Voltage Requirement?Dual Supply ±2.5V, ±5V, ±10V, ±15V, ±20V?Single Supply 1.8V, 3V, 5V, 10V, 15V, 30V?Power Level Battery, Line Power, Micro Power?
Keys to Success1. Learn as much possible about the
application and amplifier requirements2. Use the offline selector tool or the selection
guide to narrow the selection to a small list of 3-5 amplifiers(http://www.intersil.com/products/odst/)
3. Identify priority tradeoffs and finalize the selection
Indentify Global Priorities1. Price, package, performance2. New requirement or 2nd source?3. Decision process - timing
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Broad Portfolio of Precision Op Amps for Sensor Frontends
End Application
Sensor Sensor Characteristics Op Amp Requirements
Recommended Amplifiers
Temperature Measurement
Thermocouple Resistance Thermometer (RTD)Thermo PIle
Low signal voltageLow impedanceLow signal bandwidth
Low Vos and driftHigh open loop gainModerate input ImpedanceSlew rate & bandwidth not critical
ISL28133, ISL28233 Low Power 5V ChopperISL28134 Low Noise 5V ChopperISL28176, ISL28276 5V Op AmpsISL28107, ISL28207 Low Ibias 40V Op AmpsISL28117, ISL28217 Low Power 40V Op AmpsISL28108, ISL28208 Rail-Rail Out 40V Op Amps
Pressure, Force, Flow Measurement
Strain Gage, Load Cell
Low signal voltageLow impedance (100 - 5000W)Low signal bandwidth (~ 1kHz)
Low Vos and driftHigh open loop gain, CMRRModerate bandwidth
ISL28118, ISL28218 Rail-Rail Out 40V Op AmpsISL28127, ISL28227 Low Noise 40V Op AmpsISL28117, ISL28217 Low Power 40V Op AmpsEL8171/72, ISL28270/72 5V Rail-Rail In-amps
Ultrasonic Vibration Measurement
Motion , Vibration Piezo-electric Sensor
Medium signal voltageAC coupled, high impedanceSignal bandwidth (~100kHz)
High input impedanceLow input Ibias, low noiseLow input capacitance, CinHigh bandwidth Moderate open loop gain
ISL28210 Low Noise JFET Op AmpISL28107, ISL28207 Low Ibias 40V Op AmpsISL28138 High BW CMOS Op AmpISL28114, ISL28214 Low Cost CMOS Op Amps
Position Measurement
Light Photodiode (Photovoltaic)
Low signal voltageHigh impedanceSignal bandwidth (~10kHz)
Very high input impedanceLow input Ibias, low noiseLow input capacitance, CinHigh bandwidth
ISL28210 Low Noise JFET Op AmpISL28138 High BW CMOS Op Amp
Chemical Ph Electrode Medium signal voltageHigh impedance (500MW)Low signal bandwidth
High input impedanceLow input Ibias, low noiseLow input capacitance, CinModerate open loop gain
ISL28210 Low Noise JFET Op AmpISL28107, ISL28207 Low Ibias 40V Op AmpsISL28138 High BW CMOS Op AmpISL28114, ISL28214 Low Cost CMOS Op Amps
Magnetic Hall Effect Magneto Resistive
Low signal voltageLow impedance (100 -5000W)Moderate signal bandwidth
Low Vos and driftHigh open loop gain, CMRRModerate bandwidth
ISL28118, ISL28218 Rail-Rail Out 40V Op AmpsISL28127, ISL28227 Low Noise 40V Op AmpsISL28117, ISL28217 Low Power 40V Op AmpsEL8171/72, ISL28270/72 5V Rail-Rail In-amps
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Precision Low Noise JFET Op Amp
Typical Application: Photodiode
Outstanding Noise Performance
ISL28210: Superior Ibias and Noise PerformanceCompetitive Summary
Applications• Flow sensors and other high
impedance applications• Medical instrumentation• Active filter blocks• Precision instruments
Competitor A Competitor B Competitor C ISL282101
10
100
1000
10000
25C 60C 85C 125C
Ibias (pA)
ISL28210 Input Bias Current (Max)ISL28210 Input Bias Current (Max)ISL28210 Input Bias Current (Max)ISL28210 Input Bias Current (Max)ISL28210 Input Bias Current (Max)ISL28210 Input Bias Current (Max)
10x Better
Mfg Max Ibias (pA)
Differential Input Capacitance (pF)
Noise @ 1kHz (nV/ÖHz)
Noise 0.1 – 10Hz (nVP-P)
BW (MHz)
Min SR (V/µs)
Max VOS (µV)
Max IS (mA)
ISIL 2 8.3 6 580 12.5 20 300 2.9
Comp A
75 12.5 8 2400 8 20 900 2.3
Comp B
50 4 13 2100 8 20 600 2.5
Comp C
10 8 6 1800 25 40 100 3
Comp D
50 1 8 ** 5 14 500 4.8
300 fA (typ)
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pH Sensor Equivalent Circuit
Sensor Sensitivity & Range• pH range 1 to 14• Voltage output: 59.16mV/pH • pH neutral (7) = 0V• Sensor output range: -414mV to
+414mV• Source impedance ~ 400MW
Amplifier Requirements• Gain = VOUT swing/818mV (~ 12 for 10V output)• Input bias current of 10pA or less = 1%
measurement error • VOS < 0.5mV < 0.1%• OPA best for 2-terminal integrated sensor or INA • INA best for 3-terminal remote sensor w/ground
shield
In spite of simplicity, pH sensor probes have many sensitivities including temperature, contamination and
aging
+
-
ISL28210 is an excellent op amp for high impedance sensor applications
Very High Input Impedance
Reference Electrode
Measurement Electrode
Potassium Chloride Solution
Silver Chloride Tip
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Low Noise, High Voltage Instrumentation Amp Using JFET Precision Op Amps
Process control applications in noisy environment often require differential measurements
For high impedance sensors it is desirable to maintain the input characteristics of high end amplifiers
This often results in a “roll their own” instrumentation amplifiers using select high performance precision amplifiers
The advantage is the user has a great deal of flexibility in achieving the desired performance and cost tradeoffs
The disadvantage is CMRR is limited by the matching of the resistors
Intersil’s new 40V precision amplifiers are excellent choices for these applications
ISL21090 ISL21009
ISL28210 ISL28207
ISL28210 ISL28207
ISL28127ISL28117 Hi Z
Vout Sensor
Roll Your Own High Performance Instrumentation Amplifier Using High
Voltage Precision Op Amps
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Zero Drift
ISL28233 Long Term Drift
Micropower, Chopper Stabilized, RRIO Op Amps
Competitive Summary
Mfg Max Is (µA)
Max Vos (µV)
TCVos (nV/C)
Max Ibias (pA)
Noise 0.1 to 10Hz (µVp-p)
Min BW (kHz)
ISL28233
25 6 50 180 1.0 400
Comp A 25 10 50 200 1.1 350
Comp B 17 15 100 50 1.96 115
ISL28233 & ISL28433: Best-in-Class Performance for Precision and Drift on Extremely Low Power
Features• 1.65V to +6.0V single supply
range• -40°C to +125°C temperature
range• Rail-to-Rail inputs and output
Applications• Pressure measurement• Electronic weigh scales• Precision/strain gauge
sensors• Precision regulation• Low ohmic current sense• Bi-directional current
sense• High gain analog front
ends
Low Noise at Low Power
Typical Application: Temperature Measurement
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Temperature Sensors
Temperature is the most widely measured parameter in Industrial Controls• The four most common types are Thermocouple, RTD, Thermistor and
Integrated Circuits• Each sensor has different characteristics and care must be taken to
select the appropriate sensor for a given application• In all cases calibration is needed and the accuracy will be dependent
on the sensor conditioning circuitSensors Thermocouple RTD Termistor Integrated Silicon
Temp Range (°C)
-270 to +1800 -250 to +900 -100 to +450 -55 to +150
Typical Applications
High temperature Bridge temperature
Bridge Temperature
Computers
Chemical reactions Calibration Pyrometer calibration
HVAC
Bio physics Process control Flow meters Cell phones
Gas ghromatography
Instrumentation Anemometers manometers
Battery management
Internal combustion
engines
Cold junction reference temp
Cold junction reference temp
Cold junction reference temp
Advantages
Simple, low cost, self-powered,
rugged, wide temp range
Most accurate, most stable, good
linearity
High sensitivity, fast response, 2-
wire ohm measurement
Most linear, highest output,
inexpensive
Dis-advantages
Non-linear, low voltage, cold
junction required, least sensitive &
stable
Expensive, slow response, excitation
required, low sensitivity, 4-wire ohm measurement
Poor linearity, more limited temp
range, fragile, excitation
required, self-heating issues
Limited temp range, power
supply needed, slow, self-heating
issues, limited package
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Thermocouple or Thermopile Sensors
Thermocouples are the most popular temperature sensor• Low cost and package flexibility
Signal levels are near DC and non-linear • Very small (10s of µV)
Cold junction compensation is required• Accurate absolute measurements
Precision amplifiers work best• Low offset, low drift, with high gain minimize
errors• High voltage and low voltage requirements
Diode Used for Cold Junction Compensation
ANSI
Material Temp Range ( °C)
Sensitivity (µV/C)
B Platinum (6%)/Rhodium – Platinum
(30%)/Rhodium
38 to 1800 7.7
C Tungsten (5%)/Rhenium – Tungsten
(26%)/Rhenium
0 to 2300 16
E Chomel – Constantan 0 to 982 76
J Iron – Constantan 0 to 760 55
K Chromel – Alumel -184 to 1260
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R Platinum (13%)/Rhodium –
Platinum
0 to 1593 11.7
S Platinum (10%)/Rhodium –
Platinum
0 to 1538 10.4
T Copper – Constantan -184 to 400
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Low VoltageLow Drift Op Amps
ISL28233ISL28134ISL28176
High VoltageISL28130
Low Drift Op AmpsISL28217ISL28207ISL28218
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Vcm Range extends to -0.5V below
Ground
ISL28218Precision 40V Single Supply, Low Noise Operational Amplifier
Typical Application :
Low Side Current Sense
FeaturesSingle or Dual Supply, Rail-Rail Outputs Below Ground (V-) Input Capability42V Abs Max Differential Input RangeWide Supply Range 3V to 40VLow Current Consumption1100 μALow Voltage Noise 5.6nV/rtHzTemperature Range -40°C to +125°C
ISL28118, ISL28218 has Outstanding Noise Performance at Half the
Power .
ISL28218 Rail to Rail Output and Ground Sensing Input are excellent for Low Side Current Sense Applications
ISL28218
V+
V-
+
-
Vpos + 500mv
To
Vneg - 500mV
Robust 42V Differential Input
Range
Competitive Summary
Below Ground (V-) Input
Capability
MfgMax Is
(uA)
Noise .1 to 10Hz
nVp-p
Noise @ 1kHznV/rt Hz
GBP(MHz)
Max Vos (uV) TcVos
Max Ibias (nA)
ISL28218 1100 300 5.6 4 230 1.4 575Comp A 2250 300 3.9 3.25 175 2 450Comp B 2200 400 12 10.5 475 2.5 650
Wide 3V to 40V Operating Supply
Range
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Low Side Current Sense AmpAdvantages• Simplicity and low cost• Low Common Mode Voltage• Ground Sensing Input and Output
Disadvantages• Ground Path disturbances / Transients• Limited dynamic range• Load is lifted from ground due to Shunt
Resistor• No short circuit detection
Key amplifier requirements• Ground Sensing Input• Rail to Rail Output• Low Offset (Dynamic Range)• Low Voltage Noise• Good response time (PWM)• Single op amp configuration for low
cost• Differential 2 amp configuration for
remote sensors
Vo = IL x Rshunt x ( Rf /Ri + 1)
Input CharacteristicsLow Sensor ImpedanceLow Signal voltage (100’s uV to 10’s mV) Depending on load currentLow InductanceLow TC Rshunt
ISL28218 is an excellent choice for Low Side Current Sense applications
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Keys to success Understand your full power chain, Vin –> Vout Understand what is your biggest concern, Efficiency, Size, etc.
Intersil Power Management in Industrial Control
ISL6844
24V
Gnd
ISL85033
5V
+15V
-15V
Gnd
2.5V
To Sensors
3.3V
Analog I/O module
Control
Memory
ISL80101
FPGA/uProcessor
Embedded Power
Controller
1.8V
Under stand your power needs Size, Efficiency, or a particular spec What Power Source Is Isolation needed What are you powering
Industrial Power• Power is needed on all
boards
• In general, the power chain looks like the one shown• Vin -> Typ 24V, can go to
36V.
• Isolation will be required for some rails
• Buck to low voltage non-isolated rails
• LDO – Cleans up the noise from the switchers
• Power monitor, Sequencers
• Reliability, Easy to use, Efficient & re-usable
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ISL684X - Isolated Power Controller Family
Feature ISL6842 UC2842A UCC28C42 MIC38C42ASmallest package option DFN-8 SOIC-8 MSOP-8 MSOP-8Industrial operating temp range -40 ~ +105 C -40 ~ +85 C -40 ~ +85 C -40 ~ +85 COscilator max frequency 2 MHz 500 kHz 1 MHz 1 MHzMax current sense propagation delay 40 ns 300 ns 70 ns 250 ns5 V reference accuracy over line, load, temp 1.0% 2.0% 3.6% 3.6%2.5 V error amp reference total accuracy 1.0% 2.0% 2.0% 3.2%Error amp unity gain bandwidth 5 MHz 1 MHz 1.5 MHz 1 MHzMax operating supply current (no switching) 3 mA 17 mA 3 mA 6 mAMax startup current 100 uA 500 uA 100 uA 230 uAGATE output rise/fall times (1 nF load) 40 ns/40 ns 150 ns/150 ns 50 ns/40 ns 80 ns/60 ns
Max Current Sense Propagation Delay (ns)(Shorter is better)
ISL6844
300
70
40
Fast 40 ns (Max) Peak-Current-Sensing Time EliminatesShort-Circuit Current “Tail Out”
BipolarUC3842A
Best CompetitiveBiCMOS 3842
Features• 1A MOSFET Gate Driver
• 60μA Start-up Current, 100μA Maximum
• 25ns Propagation Delay Current Sense to Output
• Fast Transient Response with Peak Current Mode Control
• Adjustable Switching Frequency to 2MHz
• 20ns Rise and Fall Times with 1nF Output Load
• Trimmed Timing Capacitor Discharge Current for Accurate dead-time/Maximum Duty Cycle Control
• High Bandwidth Error Amplifier
• Tight Tolerance Voltage Reference Over Line, Load, and Temperature
• Tight Tolerance Current Limit Threshold
Superior performance vs. Competition in everyspecification
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ISL85033 – 28V, 3A:3A Dual Std Buck Regulator
CH1
CH2
Vin1
Vin2
Vout1: 3A
Vout2: 3A
CH1
CH2
Vin1
Vin2
Vout1: 6A
Dual Buck Regulator - 3A/3A Outputs
Single Parallel Buck – 6A Output
Dual Output, Standard Buck Regulator with
Integrated High Side MOSFET• Vin range 4.5V to 28V
• Vout range 0.8V to 24V
• 3A/Channel guaranteed output current
• Selectable 180o Out of Phase operation or In Phase operation modes
• Current Mode Control
• Output Current Sharing capability
• Fsw 500KHz (default) or 300KHz to 2MHz Adj.
• Synchronization to external clock – 360KHz to 2MHz
• Independent EN and PGOOD for both channels
• Independent Sequential ratio-metric or absolute tracking between outputs
• Internal 5mS Soft-Start or Externally Adjustable Soft-Start
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ISL80101/2/3 High Current PMOS LDOs
LDOs capable of 1A, 2A, and 3A current drive
• Designed for fast load transient response
• Tight ±2% VOUT accuracy over -40ºC < TJ < 125ºC
• 70dB PSRR over full-rated load current
• 90μVrms low output noise from 300Hz to 300kHz
• Less than 1µA shutdown current
• 7 industry-standard fixed & adjustable Vout options:
• PGOOD, Enable, Short-Circuit & Reverse Current Protection, & Over-Temperature Shutdown Capability
Features Benefits
Fast Transient Response
Helps to ensure that output voltage is properly regulated even under varying load current step changes
±2% Total DC Accuracy
Tight accuracy will help guarantee a reliable POL voltage supply in critical application fields such as Medical, Industrial, Telecommunications, etc.
Low Dropout Voltage
VDO must be low to minimize power dissipation and maintain sufficient VOUT levels in spite of lower VIN due to aging batteries
Enable, PG, IRSET, OCP Protection,
Thermal Shutdown
Added key features help LDOs be more dependable and customizable in different applications
2µs Settling
0 to 3A Load Step
Fast Transient Response
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ISL80101/2/3 Competitive Advantages
Advantages on Key Specs• Leading class fast load transient response and total AC regulation band
for LDOs in this category
• Best in class ±0.3% Initial Accuracy & ±1.8% Total DC Accuracy
– Guaranteed for full junction temp (TJ) -40°C to +125°C
– Over full rated load current capability
– Includes line & load regulation
• Best in class package power density (i.e. Up to 3A per 9mm2)
Key Differentiators Over Competition• Enable & PGOOD are standard features
• Ability to set Inrush Current Limit via IRSET pin
• <1V EN Threshold for decreasing voltage applications
• Option for user-programmable Current Limit (*Contact Factory)
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Other Power Parts
Full Power chain available • Sequencers to power the
rails up in a particular order – Highlighted in brochure
• Power Monitors – to give early detection if a rail goes down
• Power Modules – Complete system in chip
ISL8201M Block DiagramMOSFETs
Inductor
RSEN
Type III Compensation
Boot Capacitor
www.intersil.com