Monolithic Power Systems (MPS) MP8833x Thermoelectric Cooler Controllers

Monolithic Power Systems (MPS) MP8833x Thermoelectric Cooler Controllers feature built-in internal power MOSFETs and achieves 1.5A continuous output current. These controllers include TEC current monitor, external SYNC function, and EN/SD for power sequencing. The MP8833x cooler controllers provide full protection that includes internal soft-start, Over-Current Protection (OCP), Over Voltage Protection (OVP), and Over-Temperature Protection (OTP). These controllers operate at -40°C to 125°C temperature range and 2.7V to 5.5V input voltage range. The MP8833x controllers offer 1MHz switching frequency and 2.27W QFN continuous power dissipation. Typical applications include optical laser diode modules, fiber communication networks, and systems with TEC temperature control.

Block Diagram

Features

• Thermoelectric Cooling (TEC) current monitor
• External SYNC function
• EN/SD for power sequencing
• Internal soft-star
• Over-Current Protection (OCP)
• Over Voltage Protection (OVP)
• Over-Temperature Protection (OTP)

Specifications

• 1% 2.5V REF accuracy
• Up to 1.5A TEC current
• 30mΩ internal MOSFETs for PWM switches and linear switches
• -40°C to 125°C operating temperature range
• 2.7V to 5.5V input voltage range
• 1MHz switching frequency
• 2.27W QFN continuous power dissipation at T_A=25°C
• 150°C junction temperature

Evaluation Tools

1.5A Thermoelectric Cooler Controller Evaluation Demo Board

The MP8833 is a monolithic thermoelectric cooler controller with built-in internal power MOSFETs. It achieves 1.5A continuous output current from a 2.7V-to-5.5V input voltage with TEC voltage range. The TEC voltage is linear controlled by an analog voltage.

The features such as TEC voltage/current limit, can be controlled on-the fly through a 3.4Mbps I²C serial interface. This brings minimum external components. Combined with a QFN package, the minimum solution size is obtained.

more information: https://www.monolithicpower.com/en/mp8833.html

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