ADN8831ACPZ-REEL7 Analog Devices Inc, ADN8831ACPZ-REEL7 Datasheet
ADN8831ACPZ-REEL7
Specifications of ADN8831ACPZ-REEL7
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ADN8831ACPZ-REEL7 Summary of contents
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FEATURES On-chip temperature measurement amplifiers TEC current voltage monitoring Programmable maximum TEC voltage Programmable maximum TEC current Separate heating and cooling current limits High efficiency: >90% Temperature lock indication Programmable switching frequency MHz Oscillator synchronization with an ...
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ADN8831 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Characteristics .............................................................. 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. ...
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SPECIFICATIONS Electrical characteristics Table 1. 1 Parameter PWM OUTPUT DRIVER Output Transition Time Nonoverlapping Clock Delay Output Resistance 2 Output Voltage Swing LINEAR OUTPUT AMPLIFIER Output Resistance 2 Output Voltage Swing ...
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ADN8831 1 Parameter TEC CURRENT MEASUREMENT ITEC Gain ITEC Output Range High ITEC Output Range Low ITEC Input Range 2 ITEC Bias Voltage ITEC Output Current TEC VOLTAGE MEASUREMENT VTEC Gain 2 VTEC Output Range 2 VTEC Bias Voltage VTEC ...
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ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings at 25°C, unless otherwise noted. Table 2. Parameter Supply Voltage Input Voltage Storage Temperature Range Operating Temperature Range Operating Junction Temperature Lead Temperature (Soldering, 60 sec) ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic ...
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ADN8831 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Type 1 ILIMC Analog Input 2 IN1P Analog Input 3 IN1M Analog Input 4 OUT1 Analog Output 5 IN2P Analog Input 6 IN2M Analog Input 7 ...
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Pin No. Mnemonic Type 29 ITEC Analog Output 30 VTEC Analog Output 31 VLIM Analog Input 32 ILIMH Analog Input ILIMH VLIM 32 31 ADN8831 ILIMC 1 1.25V VOLTAGE IN1P 2 LIMIT CHOP1 IN1M 3 1.25V OUT1 4 IN2P 5 ...
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TYPICAL PERFORMANCE CHARACTERISTICS SPGATE Figure 4. SPGATE and SNGATE Rise Time Using Circuit Shown in Figure 12 SNGATE SPGATE T = 25° Figure 5. SNGATE and SPGATE Fall Time Using Circuit Shown in Figure 12 ...
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720 700 680 660 640 –40 – TEMPERATURE (°C) Figure 10. Switching Frequency vs. Temperature 200 Figure 11. Supply Current vs. Switching Frequency Rev. 0 ...
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ADN8831 THEORY OF OPERATION The ADN8831 is a controller for a thermoelectric cooler (TEC). The voltage applied to the input of the ADN8831 corresponds to the target temperature set point. The appropriate current is then applied to the TEC to ...
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OSCILLATOR CLOCK FREQUENCY The ADN8831 has an internal oscillator to generate the switching frequency for the output stage. This oscillator can be set in either free-run mode or synchronized to an external clock signal. Free-Run Operation The switching frequency is ...
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ADN8831 TEMPERATURE LOCK INDICATOR The TMPGD pin (Pin 11) outputs a logic high when the OUT1 voltage reaches the IN2P voltage. The TMPGD has a detection range of ±25 mV and typical hysteresis. This allows direct interfacing ...
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The sink current is set by the resistor connected from the FREQ pin to ground. Calculate the sink current SINK R FREQ Where I is the sink current at the VLIM pin, and R ...
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ADN8831 APPLICATIONS THERMISTOR INPUT AMPLIFIER /( IN1P + CHOP1 IN1N – V REF 17.68kΩ R REF 7.68kΩ (10kΩ @ 25°C) SIGNAL ...
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The V is centered around 25°C. With the typical OUT1 REF values shown in Figure 17, an averaged temperature-to-voltage coefficient is −25mV/° range of +5°C to +45°C. 2.5 2.0 1.5 1.0 0.5 0 –15 5 ...
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ADN8831 The voltage at OUT2 is determined by the compensation network that receives temperature set voltage and thermistor voltage fed by the input amplifier. V has a low limit LFB and an upper limit ...
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... OUTLINE DIMENSIONS PIN 1 INDICATOR 12° MAX 1.00 0.85 0.80 SEATING PLANE ORDERING GUIDE Model Temperature Range 1 ADN8831ACPZ-REEL7 −40°C to +85°C EVAL-ADN8831 −40°C to +85° Pb-free part. 5.00 BSC SQ 0.60 MAX 24 0.50 BSC TOP 4.75 VIEW BSC SQ 0.50 0.40 17 0.30 ...
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ADN8831 NOTES Rev Page ...
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NOTES Rev Page ADN8831 ...
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ADN8831 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04663-0-9/05(0) Rev Page ...