BD49101AEFS-M – Multi-channel Power Supply IC

Part Number : BD49101AEFS-M

Function : Multi-channel Power Supply IC

Manufactures : Rohm

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Description :

Datasheet Multi-Channel Power Supply LSI Series for Car Electronics Multi-channel Power Supply IC for Car Audio Systems BD49101AEFS-M General Description 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 Package HTSSOP-A44 W(Typ) x D(Typ) x H(Max) 18.50mm x 9.50mm x 1.00mm HTSSOP-A44 Applications  Car audio and infotainment ○Product structure:Silicon monolithic integrated circuit .www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001 ○This product is not designed for protection against radioactive rays 1/41 TSZ02201-0V3V0AP00060-1-2 06.Apr.2015 Rev.001 BD49101AEFS-M Pin Configuration VOUT5 VIN0 BCAP VINSW N.C. HSW GND4 SW2 FB2 INV2 VOUT0 VIN1 ADJ1 VOUT1 ADJ2 VOUT2 GND3 N.C. VIN2 SNSH SNSL GATE1 ADJ5 EN REG4EN ECO BSENS REG4 OCB SDA SCL SYNC GND1 RT GND2 VOUT3 ADJ3 VIN3 VIN4 CLCAL VOCAL ADJ4 VOUT4 INV1 FB1 Figure 1. Pin Configuration(s) Pin Description Pin NO Symbol 1 VOUT5 2 VIN0 3 BCAP 4 VINSW Function REG5 voltage output Battery power supply connection pin Back-up capacity connection pin Power supply for high side switch 5 N.C. - 6 HSW High side switch output 7 GND4 Ground 8 SW2 DCDC2 switching output 9 FB […]

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BD49101AEFS-M Datasheet


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