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L4953G Datasheet

  • L4953G

  • MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO

  • 6頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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L4953G
MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
PRELIMINARY DATA
3 OUTPUTS:
9.2V (500mA);
5V (1A);
5V (100mA) STANDBY
OUT1 (9.2V) AND OUT2 (5V) WITH INDE-
PENDENT ENABLE CONTROL FOR STAND-
BY MODE
2A HIGH SIDE DRIVER WITH CLAMPED
OUTPUT (16V)
LOGIC OUTPUT FOR:
鈥?SUPPLY UNDERVOLTAGE (LVW)
鈥?OVERVOLTAGE
鈥?THERMAL PROTECTION
RESET FUNCTION
IGNITION COMPARATOR
REVERSE BATTERY AND LOAD DUMP
PROTECTION
THERMAL SHUTDOWN
DESCRIPTION
The L4953G contains a triple voltage regulator
and a power switch.
BLOCK DIAGRAM
VS
7
Multiwatt15
The IC includes a monitoring circuit to warn if a
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.
LOAD DUMP
POW GND
3
5V, 100mA
REGULATOR
STAND-BY
5V, 1000mA
REGULATOR
SWITCHED
11
STAND-BY 5V
9
OUT 5V
EN 5V
STCAP
EN 9.2V
1
12
9.2V, 500mA
REGULATOR
SWITCHED
10
OUT 9.2V
2
16V, 2A
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
SIG GND
8
6
D97AU579
13
LVW/FAULT
14
RESET
IGN OUT
April 1999
This is preliminary information on a new product now in development. Details are subject to change without notice.
1/6

L4953G 產(chǎn)品屬性

  • L4953G View All Specifications

  • 25

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 專用型

  • -

  • 轉(zhuǎn)換器,汽車音響系統(tǒng)

  • 11 V ~ 18 V

  • 3

  • 5V,9.2V,16V

  • -40°C ~ 85°C

  • 通孔

  • Multiwatt-15(垂直,彎曲和錯列引線)

  • 15-Multiwatt

  • 管件

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