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The LM5171PHPR controller can provide high voltage and precision components for dual-channel bidirectional converters. Relevant examples include dual-battery systems. The LM5171PHPR supports multi-phase parallel operation, with each phase having balanced current sharing. The LM5171PHPR can also support independent channel bidirectional operation, thus it can be used as an independent controller for multi-phase buck/boost or independent buck/boost.

Main specifications

Output type: Transistor driver

Function: Boost pressure, drop pressure, boost/drop pressure

Output configuration: positive

Topology: Down-voltage, up-voltage, down-voltage, up-voltage

Output number: 2

Output stage: 3

Voltage - Power supply (Vcc/Vdd) : 3V to 80V

Frequency - Switch: 50kHz to 1MHz

Duty cycle (maximum) : -

Synchronous rectifier: Yes

Clock synchronization: Yes

Serial interface: I2C

Control characteristics: Current limiting, no-load time control, enable, frequency control, phase control, ramp, soft start

Operating temperature: -40°C to 150°C (TJ)

Installation type: Surface mount type

Packaging/Housing: 48-HTQFP (7x7)

Application scenarios

Battery Test System (BTS

Super capacitive or backup battery power converter

Stackable high-power step-down or step-up applications

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