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廬

L4953K

MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO

3 OUTPUTS:

8.25V (500mA); 5V (1A); 5V (100mA)

STANDBY

OUT1 (8.25V) AND OUT2 (5V) WITH INDE-

PENDENT ENABLE CONTROL FOR STAND-

BY MODE

1.5A HIGH SIDE DRIVER WITH CLAMPED

OUTPUT (16V)

LOGIC OUTPUT FOR:

鈥?SUPPLY UNDERVOLTAGE (LVW)

鈥?OVERVOLTAGE(FAULT)

鈥?THERMAL PROTECTION (FAULT)

RESET FUNCTION

IGNITION COMPARATOR

REVERSE BATTERY AND LOAD DUMP

PROTECTION

THERMAL SHUTDOWN

DESCRIPTION

The L4953K contains a triple voltage regulator

and a power switch.

The IC includes a monitoring circuit to warn if a

BLOCK DIAGRAM

VS

7

LOAD DUMP

AND REV

BATT PROT

SIG GND

3

5V, 100mA

REGULATOR

STAND-BY

5V, 1000mA

REGULATOR

SWITCHED

11

Multiwatt 15

ORDERING NUMBER:

L4953K

low voltage or no voltage condition is occuring.

In stand-by output is active as long as possible

even when in thermal shutdown or any other fault

conditions.

The STCAP pin allows the use of a reserve sup-

ply capacitor that will hold enough energy for the

5V Stand-by line to allow the

碌P

to store data.

STAND-BY 5V

9

OUT 5V

EN 5V

STCAP

EN 8.25V

1

12

8.25V, 500mA

REGULATOR

SWITCHED

10

OUT 8.25V

2

16V, 1.5A

VOLTAGE CLAMP

SWITCHED

4

OUT 16V

EN 16V

15

VCAP

REF

GEN

Vref1 LVW THRESHOLD

Vref2 Reset THRESHOLD

IGNITION THRESHOLD

OVERVOLTAGE

UNDERVOLTAGE

THERMAL PROT

RESET

IGN INP

5

PROT

POW GND

8

6

D94AU213B

13

LVW/FAULT

14

RESET

IGN OUT

June 2000

1/8

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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L4953K相關(guān)型號(hào)PDF文件下載

• 型號(hào)
  版本
  描述
  廠商
  下載
• L4950
  英文版
  IC,VOLT REGULATOR,FIXED,+8.5V,BIPOLAR,SIP,3PIN,PLASTIC 
  st
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• L4952
  英文版
  VOLTAGE REGULATOR FOR CAR RADIO APPLICATIONS
  
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  VOLTAGE REGULATOR FOR CAR RADIO APPLICATIONS
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  MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
  
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• L4954
  英文版
  QUAD MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
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  5A ULDO LINEAR REGULATORS FAMILY
  
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• L4955
  英文版
  5A ULDO LINEAR REGULATORS FAMILY
  STMICROELECTRON...
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• L4956
  英文版
  5A LOW DROP LINEAR REGULATOR
  
  L4956
• L4956
  英文版
  5A LOW DROP LINEAR REGULATOR
  STMICROELECTRON...
  L4956
• L4957
  英文版
  UP TO 4A ULDO LINEAR REGULATOR
  
  L4957
• L4957
  英文版
  UP TO 4A ULDO LINEAR REGULATOR
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  L4957
• L4959
  英文版
  MULTIFUNCTION VOLTAGE REGULATOR FOR HOME AUDIO
  
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• L4952D
  英文版
  VOLTAGE REGULATOR FOR CAR RADIO APPLICATIONS
  
  L4952D
• L4953G
  英文版
  MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
  
  L4953G
• L4953G
  英文版
  MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
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• L4953K
  英文版
  MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
  
  L4953K
• L4953K
  英文版
  MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
  STMICROELECTRON...
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