BD49101AEFS-M PDF – Multi-channel Power Supply IC

Part Number: BD49101AEFS-M

Function: Multi-channel Power Supply IC

Package: HTSSOP-A44 Type

Manufacturer: Rohm


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The BD49101AEFS-M LSI is a multi-channel power supply IC that can provide all necessary supply voltages for automobile audio systems. The IC has two Switching Power Supplies (DCDC), five Regulators (REG) and a High Side switch. This single power supply system can provide the required voltages to all systems including the MCU, CD, tuner, USB, illumination, audio circuits and others. The IC system is based on switching regulator which has high efficiency then you can suppress heat of IC than before.

And it has low power mode operation or voltage control function so that you can get ①High Efficiency ②Low IQ and ③easiness of power supply design. Features  AEC-Q100 Qualified(Note1)  Integrated 7 channels of Power Supply for Car Audio ・2 DCDC (Integrated 1 Controller ) ・5 REG  1 High Side Switch channel  Integrated Low Power Standby REG for MCU Power Supply  REG4 Cable Impedance Compensation  I2C Interface  Selectable Oscillation Frequency using External Resistance  External Clock Synchronization  Power Supply Control Function (Power on/off Sequencer).  Low Voltage, Over Voltage and REG4 Over Current Detect Flag  Integrated Protection Circuitry: ・Over Voltage Input Protection ・Over Current Protection ・Thermal Shutdown (Note1:Grade3) Key Specifications  Input Voltage Range: 5.5V to 25V(VIN0=BCAP)  DCDC1(controller):  DCDC2(with low power mode for MCU): 1A  REG1(output voltage variable): 500mA  REG2(output voltage variable): 100mA  REG3(output voltage variable): 300mA  REG4(output voltage variable for USB): 1.5A  REG5(output voltage variable): 50mA  High side SW: 500mA  Standby Current: 100µA(Typ)  REG4 Over Current Detect Accuracy: ±20%  Operating Temperature Range: -40°C to +85°C  DCDC Switching Frequency: 200kHz to 500kHz  […]

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BD49101AEFS-M Datasheet