BD49101ARFS-ME2 ROHM

Datasheet Multi-Channel Power Supply LSI Series for Car Electronics Multi-channel Power Supply IC for Car Audio Systems BD49101ARFS-M General Description Key Specifications The BD49101ARFS-M LSI is a multi-channel power Input Voltage Range: 5.5V to 25V(VIN0=BCAP) supply IC that can provide all necessary supply voltages DCDC1(controller): for automobile audio systems. The IC has two Switching DCDC2(with low power mode for MCU): 1A Power Supplies (DCDC), five Regulators (REG) and a REG1(output voltage variable): 500mA High Side switch. This single power supply system can REG2(output voltage variable): 100mA provide the required voltages to all systems including the REG3(output voltage variable): 300mA MCU, CD, tuner, USB, illumination, audio circuits and REG4(output voltage variable for USB): 1.5A others. REG5(output voltage variable): 50mA The IC system is based on switching regulator which High side SW: 500mA has high efficiency then you can suppress heat of IC Standby Current: 100A(Typ) than before. And it has low power mode operation or REG4 Over Current Detect Accuracy: 20% voltage control function so that you can get High Operating Temperature Range: -40C to +85C DCDC Switching Frequency: 200kHz to 500kHz Efficiency Low IQ and easiness of power supply design. Package W(Typ) x D(Typ) x H(Max) HTSSOP-A44R 18.50mm x 9.50mm x 1.00mm Features (Note1) AEC-Q100 Qualified 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 2 I C Interface Selectable Oscillator Frequency using External Resistance External Clock Synchronization Power Supply Control Function (Power on/off Sequencer). HTSSOP-A44R Low Voltage, Over Voltage and REG4 Over Current Detect Flag Integrated Protection Circuitry: Over Voltage Input Protection Over Current Protection Thermal Shutdown (Note1:Grade3) Applications Car Audio and Infotainment Product structure:Silicon monolithic integrated circuit This product is not designed for protection against radioactive rays . www.rohm.com TSZ02201-0V3V0AP00090-1-2 2016 ROHM Co., Ltd. All rights reserved. 1/41 TSZ2211114001 20.Sep.2016 Rev.001 BD49101ARFS-M Pin Configuration FB1 GATE1 INV1 SNSL VOUT4 SNSH ADJ4 VIN2 VOCAL N.C. CLCAL GND3 VIN4 VOUT2 ADJ2 VIN3 ADJ3 VOUT1 VOUT3 ADJ1 GND2 VIN1 RT VOUT0 INV2 GND1 SYNC FB2 SCL SW2 SDA GND4 REG4OCB HSW N.C. BSENS ECO VINSW REG4EN BCAP EN VIN0 VOUT5 ADJ5 Figure 1. Pin Configuration(s) Pin Description Pin Pin Symbol Function Symbol Function NO NO 1 GATE1 DCDC1 outside FET gate drive 23 ADJ5 REG5 output voltage adjustment 2 SNSL DCDC1 current detection 24 EN Enable 3 SNSH DCDC1 current detection 25 REG4EN REG4 Enable 4 VIN2 Power supply for built-in FET REG2 26 ECO Low power mode switch 5 N.C. 27 BSENS Error flag output 6 GND3 Ground 28 REG4OCB Error flag output 2 7 VOUT2 REG2 voltage output 29 SDA I C-bus data input 2 8 ADJ2 REG2 output voltage adjustment 30 SCL I C-bus clock input 9 VOUT1 REG1 voltage output 31 SYNC External synchronization signal input 10 ADJ1 REG1 output voltage adjustment 32 GND1 Ground 11 VIN1 Power supply for built-in FET REG1 33 RT Oscillator frequency setting 12 VOUT0 STBREG voltage output 34 GND2 Ground 13 INV2 DCDC2 Error Amp Input 35 VOUT3 REG3 voltage output 14 FB2 DCDC2 Error Amp output 36 ADJ3 REG3output voltage adjustment 15 SW2 DCDC2 switching output 37 VIN3 Power supply for built-in FET REG3 16 GND4 Ground 38 VIN4 Power supply for built-in FET REG4 17 HSW High side switch output 39 CLCAL REG4 over current protection setting REG4 output USB cable impedance 18 N.C. 40 VOCAL calibration setting 19 VINSW Power supply for high side switch 41 ADJ4 REG4 output voltage adjustment 20 BCAP Back-up capacity connection pin 42 VOUT4 REG4 voltage output 21 VIN0 Battery power supply connection pin 43 INV1 DCDC1 Error Amp Input 22 VOUT5 REG5 voltage output 44 FB1 DCDC1 Error Amp output N.C pins are not connected into internal circuits. www.rohm.com TSZ02201-0V3V0AP00090-1-2 2016 ROHM Co., Ltd. All rights reserved. 2/41 TSZ2211115001 20.Sep.2016 Rev.001