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E-L5950

P1-P3P4-P6P7-P8
1/8
L5950
September 2013
■ 5 REGULATORS10V (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, I
2
C
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
DESCRIPTION
The ASPM (Audio System Power Module) is an inte-
gration 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 bat-
tery protection.
MULTIWATT15
ORDERING NUMBER: L5950
MULTIPLE MULTIFUNCTION
VOLTAGE REGULATOR FOR CAR RADIO
BLOCK DIAGRAM
VOLTAGE
REFERENCE
REG 1
10V 350mA
REG 2
8.5V 175mA
REG 3
5V 350mA
REG 4
8V/10V 1A
REG 5
5V 250mA
8.5 & 5V
ENABLE
PC OUTPUT
CONTROL
CURRENT
LIMIT
PROTECTION
LOGIC
INDIVIDUAL
THERMAL
SHUTDOWN
OVERVOLTAGE
PROTECTION
DRIVE 1
2A
DRIVE 2
450mA
DRIVE 3
450mA
REG1
REG2
REG3
REG4
REG5
HSD1
HSD2
HSD3
BAT
GND
VREF
ENABLE
SCL
SDA
D99AU1002
L5950
2/8
ABSOLUTE MAXIMUM RATING
PIN CONNECTION
(Top view)
THERMAL DATA
Symbol Parameter Value Unit
V
S
DC Operating Supply Voltage -0.6 to 26.5 V
V
S
Transient Supply Overvoltages, rise time = 10ms
delay time = 115ms
34 V
V
in
Input Voltages (EN, SDA, SCL) -0.6 to 9 V
V
out
Output Control Voltage -0.6 to 6.0 V
T
op
Operating Temperature Range -40 to 85 °C
T
stg
Storage Temperature Range -40 to 150 °C
Symbol Parameter Value Unit
R
th j-case
Thermal Resistance Junction to case 2 °C/W
1
2
3
4
5
6
7
9
10
11
8
REG2
REG1
VREF
GND
SCL
Enable
SDA
HSD3
HSD2
BAT
HSD1
13
14
15
12
REG4
BAT
REG5
REG3
D99AU1006
3/8
L5950
ELECTRICAL CHARACTERISTICS
Refer to the application circuit, V
S
= 14.4V; T
amb
= 25°C; unless otherwise specified.
Symbol Parameter Test Condition Min. Typ. Max. Unit
I
q,ST-BY
Standby Quiescent Current All Outputs Off, V
BAT
= 14V 2 A
I
q
Maximum Quiescent Current V
BAT
= 14V, I
REG1
= 350mA,
I
REG2
= 175mA, I
REG3
= 350mA,
I
REG4
= 1A, I
REG5
= 250mA,
I
HSD1
= 2A, I
HSD2,3
= 450mA
150 mA
I
EN
Enable Input Current V
BAT
= 14V,
Enable 2V
V
BAT
= 14V,
Enable 0.8V
-10
10 A
A
V
IL
, V
IH
Enable Threshold Voltage V
BAT
= 14V, V
IL
V
BAT
= 14V, V
IH
2
0.8 V
V
10V/350mA REG 1 OUTPUT
V
REG1
Output Voltage I
REG1
= 350mA
11V V
CC
16V
9.50 10 10.5 V
V
line
Line Regulation 11V V
CC
26V
(Measure V
REG1
Across V
CC
Range)
55 mV
V
load
Load Regulation 5mA I
REG1
350mA 55 mV
V
DROPOUT
Dropout Voltage (Measure V
BAT
-
V
REG1
when V
REG1
drops 0.1V)
(Measure V
BAT
- V
REG1
when
V
REG1
drops 0.1V)
I
REG1
= 350mA
I
REG1
= 5mA
900
300
mV
mV
I
lim1
Current Limit 0.51 1.1 A
SVR Ripple Rejection f
o
= 1kHz, V
BAT
= 14V
with 1Vpp AC
I
REG1
= 175mA
50 dB
8.5V/175mA REG 2 OUTPUT
V
REG2
Output Voltage I
REG2
= 175mA
9.5V VB
AT
16V
8.3 8.5 8.7 V
V
line
Line Regulation 9.5V V
BAT
26V
(Measure V
REG2
Across V
BAT
Range)
50 mV
V
load
Load Regulation 5mA I
REG2
175mA 50 mV
V
DROPOUT
Dropout Voltage (Measure V
BAT
- V
REG2
when
V
REG2
drops 0.1V)
I
REG2
= 175mA
I
REG2
= 5mA
900
300
mV
mV
I
lim2
Current Limit 280 525 mA
SVR Ripple Rejection f
o
= 1kHz, V
BAT
= 14V
with 1Vpp AC
I
REG2
= 100mA
50 dB
5V/350mA REG 3 OUTPUT
V
REG3
Voltage Offset from V
REF
10 40 mV
V
line
Line Regulation 7V V
BAT
26V
(Measure V
REG3
Across V
BAT
Range)
50 mV
V
load
Load Regulation 5mA I
REG3
350mA 100 mV
P1-P3P4-P6P7-P8

E-L5950

Mfr. #:
Buy E-L5950
Manufacturer:
STMicroelectronics
Description:
IC REG CONV CAR 5OUT 15MULTIWATT
Lifecycle:
New from this manufacturer.
Delivery:
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