12V Input Multi-Channel System Power Supply IC - BM81004MUV

BM81004MUV is a system power supply for TFT-LCD panels used for liquid crystal TVs. This IC is incorporated with Negative and Positive charge pump controller and Gate Pulse Modulation (GPM) function. I also features built-in EEPROM to contain each setting voltage, soft start time etc.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BM81004MUV-ZE2ActiveVQFN48V7070A15001500TapingYes

BM81004MUV Data Sheet

Specifications
GradeStandard
Vin1(Min.)[V]8.6
Vin1(Max.)[V]14.0
SW frequency(Max.)[MHz]1.0
Output Source Voltage[V]to 18
Output Logic Voltage[V]Variable
Output Logic Voltage2[V]Variable
Output Gate Voltage[V]Variable
Start up Sequence CircuitYes
VCOM[ch]1
Operating Temperature (Min.)[°C]-40
Operating Temperature (Max.)[°C]105
Technical Documents
Features
  • Step-up DC/DC converter (AVDD) (Synchronous rectification, Built-in load switch)
  • Step-down DC/DC converter 1 (VIO) (Non-synchronous rectification)
  • Step-down DC/DC converter 2 (VCORE)
  • Step-down DC/DC converter 3 (HAVDD) (Synchronous rectification)
  • Positive charge pump controller (VGH)
  • Negative charge pump controller (VGL)
  • Gate Pulse Modulation (GPM) function
  • High Voltage LDO (50mA)
  • 10bit DAC-controlled Gamma Amplifier 4ch
  • 8bit DAC-controlled VCOM Amplifier
  • Output voltage control by I2C
  • Built-in EEPROM
  • Switching Frequency 750kHz (AVDD, VIO)
  • Switching Frequency 1MHz (VCORE, HAVDD)
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Application Note BA12004BF
Part Explanation BA12004BF