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STMicroelectronics - MULTIPLE MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO

Numéro de référence L5950
Description MULTIPLE MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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L5950 fiche technique
® 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 CAPACI-
TORS ARE REQUIRED
STAND BY MODE CONTROLLED BY 3 IN-
PUT 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 OVERVOL-
TAGE SHUTDOWN
ESD PROTECTED
BLOCK DIAGRAM
BAT
GND
VOLTAGE
REFERENCE
VREF
ENABLE
SCL
SDA
8.5 & 5V
ENABLE
PC OUTPUT
CONTROL
CURRENT
LIMIT
PROTECTION
LOGIC
INDIVIDUAL
THERMAL
SHUTDOWN
OVERVOLTAGE
PROTECTION
March 2001
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
REG 2
8.5V 175mA
REG 3
5V 350mA
REG 4
8V/10V 1A
REG 5
5V 250mA
REG1
REG2
REG3
REG4
REG5
DRIVE 1
2A
HSD1
DRIVE 2
450mA
HSD2
DRIVE 3
450mA
HSD3
D99AU1002
1/8

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