Richtek RTQ6052 High-Side Current Shunt Monitor

The Richtek RTQ6052 High-Side Measurement Current Shunt Monitor incorporates a current-sense amplifier, bandgap reference, and a comparator with latching output. The RTQ6052 senses drops across shunts at 2V to 80V common-mode voltages.

The Richtek RTQ6052 monitor builds in an open-drain comparator and internal reference, supplying a 0.6V threshold. The current trip point is set by external dividers. The comparator features a latching capability that can be made easily by grounding (or leaving open) the RESET pin.

The RTQ6052 is housed in a small 8-pin MSOP package.

Features

High-accuracy current sensing
3.5% maximum error over temperature
2.9V to 18V power-supply range
100V/V gain
2V to 80V common-mode range

0.6V internal voltage reference
Internal open-drain comparator
Latching capability on comparator
MSOP-8 package

Applications

Servers, storage, and network equipment
Portable, battery-powered systems
Point of Load (POL) power modules

Notebook computers
High-end digital TVs

Specifications

2V to 80V common-mode voltage
2.9V to 18V V_S
±2500µV input offset
±5µV/°C input offset drift

80dB C_MRR (minimum)
36kHz bandwidth
1% gain error (maximum)
1.2mA I_q (maximum)

Richtek RTQ6052 High-Side Current Shunt Monitor

Features

Applications

Specifications

Simplified Application Circuit

Functional Block Diagram

husseinkey ELECTRONICS®

COMPANY