BD18354MUF-M (Under Development)
2ch Constant Current/Voltage Controller with SPI and I2C Interface for Automotive
BD18354MUF-M (Under Development)
2ch Constant Current/Voltage Controller with SPI and I2C Interface for Automotive
BD18354MUF-M is a 2ch Constant-Current and Voltage Controller. High side current detection amplifier is built in. PWM dimming duty can be freely set with built-in PWM generation circuit. PWM dimming realizes by driving an external P-ch FET. The BD18354MUF-M can support individual 10-bit analog dimming and 10-bit PWM dimming for LED current by programing the 10-bit register via SPI. BD18354MUF-M can be started up by reading data from the EEPROM by setting the MODE pin without SPI communication. The BD18354MUF-M will support LIMP-HOME mode and STAND-ALONE mode if SPI communication has an error. In the LIMP-HOME mode, it operates by loading the register settings stored in the connected EEPROM. In the STAND-ALONE mode, individual LED current can be set by the external pins and can keep LED current sourcing during applying input power without SPI communication.
Product Detail
Functional Safety:
Specifications:
Topology
Boost
Vin(Min.)[V]
5
Vin(Max.)[V]
70
Number of Outputs
2
Vout(Max.)[V]
70
Switching Frequency (Max.)[MHz]
2.5
Data Input
SPI
Data Transfer Rate(Max.)[MHz]
2
Dimming
DC / PWM
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
125
Package Size [mm]
6.0x6.0 (t=1.0)
Common Standard
AEC-Q100 (Automotive Grade)
Features:
- AEC-Q100 Qualified (Grade1)
- Functional Safety Supportive Automotive Products
- PWM Dimming Signal Generator
- Analog Dimming
- Thermal Shutdown (TSD)
- Thermal Sensor Reading
- Serial Peripheral Interface (SPI)
- Inter-Integrated Circuit (I2C)
- LIMP-HOME Mode
- Outputs Abnormal LED Status (FAULT_Bx)
- Spread Spectrum Frequency Modulation
