L5950 STMicroelectronics, L5950 Datasheet

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L5950

Manufacturer Part Number
L5950
Description
IC VREG MULTI CAR MULTIWATT15
Manufacturer
STMicroelectronics
Series
-r
Datasheet

Specifications of L5950

Applications
Converter, Car Audio System
Voltage - Input
7 ~ 26 V
Number Of Outputs
5
Voltage - Output
5V, 8.5V, 10V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Polarity
Positive
Output Type
Selectable
Output Voltage
5 V, 8 V, 8.5 V, 10 V
Output Current
3 A
Line Regulation
55 mV
Load Regulation
55 mV
Dropout Voltage (max)
1.5 V
Input Voltage Max
30 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
Through Hole
Voltage Regulation Accuracy
2.5 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

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BLOCK DIAGRAM
March 2001
10V (350mA); 8.5V (175mA); 5V (350mA); 5V
(250mA); 8V/10V (1A)
OUPUTS
2A (HSD1), 0.45A (HSD2 & HSD3)
TORS ARE REQUIRED
PUT PINS:
ENABLE FOR REG2 AND REG3,
I
HSD2, HSD3
TAGE SHUTDOWN
5 REGULATORS
ALL REGULATORS ARE LOW DROPOUT
3 HIGH SIDE DRIVERS:
NO EXTERNAL CHARGE PUMP CAPACI-
STAND BY MODE CONTROLLED BY 3 IN-
INDIVIDUAL THERMAL SHUTDOWN
INDEPENDENT CURRENT LIMITING
SHORT CIRCUIT PROTECTION
LOAD DUMP PROTECTION AND OVERVOL-
ESD PROTECTED
2
C BUS FOR REG1, REG4, REG5, HSD1,
®
ENABLE
VREF
GND
SDA
BAT
SCL
OVERVOLTAGE
PROTECTION
PROTECTION
REFERENCE
SHUTDOWN
PC OUTPUT
INDIVIDUAL
CURRENT
VOLTAGE REGULATOR FOR CAR RADIO
VOLTAGE
CONTROL
THERMAL
8.5 & 5V
ENABLE
LOGIC
LIMIT
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 I
bus and the Enable input.
External protection must be provided for reverse
battery protection.
MULTIPLE MULTIFUNCTION
8.5V 175mA
10V 350mA
8V/10V 1A
5V 350mA
5V 250mA
DRIVE 1
DRIVE 2
DRIVE 3
450mA
450mA
REG 1
REG 2
REG 3
REG 4
REG 5
2A
Multiwatt15
D99AU1002
REG1
REG2
REG3
REG4
REG5
HSD1
HSD2
HSD3
L5950
1/8
2
C

Related parts for L5950

L5950 Summary of contents

Page 1

... External protection must be provided for reverse battery protection. VOLTAGE REFERENCE 8.5 & 5V ENABLE PC OUTPUT CONTROL CURRENT LIMIT PROTECTION LOGIC INDIVIDUAL THERMAL SHUTDOWN OVERVOLTAGE PROTECTION L5950 Multiwatt15 REG 1 REG1 10V 350mA REG 2 REG2 8.5V 175mA REG 3 REG3 5V 350mA REG 4 REG4 8V/10V 1A REG 5 REG5 5V 250mA ...

Page 2

... L5950 ABSOLUTE MAXIMUM RATINGS Symbol V DC Operating Supply Voltage S V Transient Supply Overvoltages, rise time = 10ms S V Input Voltages (EN, SDA, SCL Output Control Voltage out T Operating Temperature Range op T Storage Temperature Range stg PIN CONNECTION THERMAL DATA Symbol Rth j-case Thermal Resistance Junction-case ...

Page 3

... BAT (Measure V Across V REG3 Range) 5mA I 350mA REG3 = 14.4V 25°C; unless S amb Min. Typ. Max. = 14V 2 150 = 350mA, 10 -10 0.8 2 9. when 900 300 0.51 1.1 50 8.3 8.5 8.7 50 BAT 50 when 900 300 280 525 BAT 100 L5950 Unit 3/8 ...

Page 4

... L5950 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter V Dropout Voltage (Measure DROPOUT VBAT- V when V REG3 drops 0.1V) I Current Limit lim3 SVR Ripple Rejection 8/10V/1A REG 4 OUTPUT V Output Voltage REG4 V Line Regulation line V Load Regulation load V Dropout Voltage DROPOUT I Current Limit lim4 SVR Ripple Rejection ...

Page 5

... The L5950 can survive under the following condi- tions: shorting the outputs to BAT and GND, loss of BAT, loss of IC GND, double battery(+26.5V), 4000V ESD, 34V load dump. L5950 will not han- dle a reverse battery condition. External compo- nents must be implemented for reverse battery protection ...

Page 6

... L5950 Figure 2. Typical Application Circuit. EN ENABLE FBATT BAT VREF 0.1 F 1000 F VREF SCL SDA GND (*) ESR of output capacitors should be between 0.1 WRITE MODE: CHIP ADDRESS S MSB S = START condition - SDA goes from high to low while SCL is high A = Acknowledge - the device being written to, pulls down on data line (SDA) during the acknowledge clock pulse ...

Page 7

... TYP. MAX. MECHANICAL DATA 0.197 0.104 0.063 0.039 0.022 0.030 0.050 0.060 0.700 0.710 0.795 0.874 0.886 0.870 0.886 0.713 0.689 0.699 0.421 0.429 0.114 0.179 0.191 0.200 0.218 0.102 0.102 0.152 L5950 OUTLINE AND Multiwatt15 V 7/8 ...

Page 8

... L5950 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice ...

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