ADN8834ACBZ-R7 | 1.5 A Thermoelectric Cooler (TEC) Controller | PID Temperature Management

Product Overview

     The ADN8834ACBZ-R7 is a highly integrated thermoelectric cooler (TEC) controller designed to manage and stabilize temperatures using a single-chip solution. It combines a linear power stage, a pulse-width modulation (PWM) power stage, and two zero-drift, rail-to-rail operational amplifiers to regulate bidirectional TEC current in an H-bridge configuration. By measuring thermal sensor feedback and applying PID compensation, the device drives current through a TEC module to reach and maintain a programmed temperature setpoint. The internal 2.50 V reference provides 1 % accuracy for biasing temperature sensors and programming current and voltage limits.

Key Features

• Integrated TEC controller with linear and PWM power stages
• Drives TEC current bidirectionally via internal MOSFETs
• Two zero-drift rail-to-rail chopper amplifiers for stable control
• PID compensation via internal amplifiers for precise temperature regulation
• Internal 2.50 V reference with 1 % accuracy
• Independent heating and cooling current limits
• Programmable maximum TEC voltage
• 2.0 MHz PWM switching frequency with external sync support
• Supports NTC thermistors and RTD temperature sensors
• Compact WLCSP-25 package (2.5 mm × 2.5 mm)
• Wide supply range: 2.7 V to 5.5 V
• Operating temperature: −40 °C to +125 °C

Applications

• TEC temperature control in optical modules and transceivers
• Precision thermal stabilization for laser diodes
• Fiber optic amplifier thermal management
• Network optical systems
• Industrial instruments requiring tight temperature regulation
• Sensor element temperature conditioning
• Portable thermal management systems

Electrical Characteristics