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SI7923DN

Product Category: FETs - Arrays
Mfr. Part #
SI7923DN
Package: QFN8
Lead Free Status /RoHS Status:
Data Sheet: SI7923DN Datasheet
Inventory: In Stock

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Mfr. Part #: SI7923DN

Product Details

Product Details

GENERAL DESCRIPTION

The ADN8830 is a monolithic controller that drives a thermoelectric cooler (TEC) to stabilize the temperature of a laser diode or a passive component used in telecommunications equipment.
This device relies on a negative temperature coefficient (NTC) thermistor to sense the temperature of the object attached to the TEC. The target temperature is set with an analog input voltage either from a DAC or an external resistor divider.
The loop is stabilized by a PID compensation amplifier with high stability and low noise. The compensation network can be adjusted by the user to optimize temperature settling time. The component values for this network can be calculated based on the thermal transfer function of the laser diode or obtained from the lookup table given in the Application Notes section.
Voltage outputs are provided to monitor both the temperature of the object and the voltage across the TEC. A voltage reference of 2.5 V is also provided.

FEATURES

High Efficiency
Small Size: 5 mm x 5 mm LFCSP
Low Noise: <0.5% TEC Current Ripple
Long-Term Temperature Stability: 0.01Â°C
Temperature Lock Indication
Temperature Monitoring Output
Oscillator Synchronization with an External Signal
Clock Phase Adjustment for Multiple Controllers
Programmable Switching Frequency up to 1 MHz
Thermistor Failure Alarm
Maximum TEC Voltage Programmability

APPLICATIONS

Thermoelectric Cooler (TEC) Temperature Control
Resistive Heating Element Control
Temperature Stabilization Substrate (TSS) Control

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Mfr. Part #: SI7923DN