BM67290FV-C Datasheet, PDF (1/33 Pages) Rohm – Built-in input PWM modulation circuit

For Electric Cars & Hybrid Cars
Isolation Voltage 2,500Vrms
High Voltage Detection IC
BM67290FV-C
General Description
This is a voltage detector IC for DC-DC converter.
Aside from being capable of converting input voltage to
duty, it has built in protection functions against low
voltage, overvoltage and active overvoltage.
Features
 Built-in input PWM modulation circuit
 Built-in low voltage lock out circuit
 Built-in input under voltage protection function
 Built-in input overvoltage protection function
 Built-in magnetic isolator
 Built-in active overvoltage protection function
 Built-in reference voltage output
Key Specifications
 Isolation Voltage:
2,500Vrms (Max)
 Power Source Voltage Range (high voltage side):
8.0V to 24V
 Power Source Voltage Range (low voltage side):
3.0V to 5.5V
 Reference Voltage :
5V±1.5%
 Oscillation Frequency Variability:
10kHz to 250kHz (Typ)
Package
W(Typ) x D(Typ) x H(Max)
Application
 DC-DC converter
Typical Application Circuit
SSOP-B20W
6.50mm x 8.10mm x 2.01mm
VBIAS
VDD1 VDD2
REF NC
VH OUT
RFOV NC
RFLV SD1
VDTY SD2
VACT NC
RT NC
GND1 GND2
GND1 GND2
VBIAS
Controller
Figure 1. Example of a Typical Application Circuit of DC-DC Converter
○Product structure: Silicon integrated circuit ○This product has no designed protection against radioactive rays
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TSZ02201-0727ABZ00010-1-2
10.Nov.2014 Rev.001