E-L5950, L5950

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L5950
MULTIPLE MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO

5 REGULATORS 10V (350mA); 8.5V (175mA); 5V (350mA); 5V (250mA); 8V/10V (1A) ALL REGULATORS ARE LOW DROPOUT OUPUTS 3 HIGH SIDE DRIVERS: 2A (HSD1), 0.45A (HSD2 & HSD3) NO EXTERNAL CHARGE PUMP CAPACITORS ARE REQUIRED STAND BY MODE CONTROLLED BY 3 INPUT PINS: ENABLE FOR REG2 AND REG3, I2C BUS FOR REG1, REG4, REG5, HSD1, HSD2, HSD3 INDIVIDUAL THERMAL SHUTDOWN INDEPENDENT CURRENT LIMITING SHORT CIRCUIT PROTECTION LOAD DUMP PROTECTION AND OVERVOLTAGE SHUTDOWN ESD PROTECTED BLOCK DIAGRAM
BAT GND

Multiwatt15

DESCRIPTION The ASPM (Audio System Power Module) is an integration of three high side drivers and five regulators developed to provide the power for an audio system. The outputs of the IC are controlled via the I2C bus and the Enable input. External protection must be provided for reverse battery protection.

REG 1 10V 350mA

REG1

VOLTAGE REFERENCE

REG 2 8.5V 175mA

REG2

VREF 8.5 & 5V ENABLE

REG 3 5V 350mA

REG3

ENABLE

SCL PC OUTPUT CONTROL SDA

REG 4 8V/10V 1A

REG4

REG 5 5V 250mA

REG5

CURRENT LIMIT PROTECTION LOGIC INDIVIDUAL THERMAL SHUTDOWN OVERVOLTAGE PROTECTION

DRIVE 1 2A

HSD1

DRIVE 2 450mA

HSD2

DRIVE 3 450mA

HSD3

D99AU1002

March 2001

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E-L5950 DATASHEET