LM5170
Overview
The LM5170 controller provides the essential high voltage and precision elements of a dual-channel bidirectional converter. It regulates the average current flowing between the high voltage and low voltage ports in the direction designated by the DIR input signal.
- Functional Safety-Capable - Documentation available to aid functional safety system design
- Suited for high power industrial dual battery system - 100-V HV-port and 65-V LV-port max ratings - 1% Accurate bidirectional current regulation - 1% Accurate channel current monitoring - 5-A Peak half-bridge gate drivers - Support multi-phase operation with stackability - Diode emulation prevents negative current
- Programmability and flexibility - Programmable or adaptive dead-time control - Programmable oscillator frequency with optional synchronization to external clock - Dual channel enable control inputs - Analog and PWM current controls - Programmable peak current limit - Programmable soft-start timer - Phase adding or dropping using EN2
- Integrated protection features - HV and LV port over-voltage protection - MOSFET failure detect at start-up and circuit breaker control - Thermal shutdown HV-Port (48 V) +10 V Bias
