- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383232 > L4954 (意法半導體) Quad Multifunction Voltage Regulator for Car Radio(用于汽車收音機的多功能四電壓穩(wěn)壓器) PDF資料下載
參數(shù)資料
| 型號： | L4954 |
| 廠商： | 意法半導體 |
| 英文描述： | Quad Multifunction Voltage Regulator for Car Radio(用于汽車收音機的多功能四電壓穩(wěn)壓器) |
| 中文描述： | 四多功能電壓調節(jié)汽車收音機（用于汽車收音機的多功能四電壓穩(wěn)壓器） |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 74K |
| 代理商： | L4954 |
L4954
QUAD MULTIFUNCTION
VOLTAGE REGULATOR FOR CAR RADIO
PRODUCT PREVIEW
4 REGULATORS
10V (40mA);8.5V(175mA); 5V (650mA);
5V (100mA)STANDBY
10V AND 5V STAND BY REGULATORS ARE
LOW DROPOUT OUTPUTS
3 HIGH SIDEDRIVERS:
2A (HSD1), 0.3A(HSD2 & HSD3)
NO EXTERNAL CHARGE PUMP CAPACI-
TORSARE REQUIRED
STAND BY MODE CONTROLLED BY 3 IN-
PUT PINS:
EN1 FOR REG1, REG2, REG3 AND HSD1,
EN2 FOR HSD2,AND EN3FOR HSD3
INDIVIDUAL THERMAL SHUTDOWN
LOGIC OUTPUTS FOR SUPPLY UNDER-
VOLTAGE:(LVWARN, RESET)
INDEPENDENT CURRENT LIMITING
OVERVOLTAGESHUTDOWN
SHORT CIRCUIT PROTECTION
LOAD DUMP PROTECTION AND OVERVOL-
TAGE SHUTDOWN
DESCRIPTION
L4954 is a quad output voltage regulator and a
three output high side driver.
The IC includes monitoring circuitry to warn the
microprocessorof a low voltagecondition:
the LVWarn, output, sensing the slow droppingof
STCAP pins voltage, gives the microprocessor
time to store data.
A RESEToutput is generatedat REG4’sdecay.
External protection must be provided for reverse
batteryprotection.
This is advanced information on a new product now indevelopment or undergoingevaluation. Details are subject to change without notice.
February 1996
REG1
10V, 40mA
VOLTAGE
REFERENCE
REG2
8.5V, 175mA
REG3
5V, 650mA
REG4
5V, 100mA
VS
RESET
LVWarn
EN1
EN2
10V-REG1
8.5V-REG2
5V-REG3
5V-REG4-STBY
EN3
D95AU346
GND
STCAP
CURRENT
LIMIT
RESET
LVW
OUTPUT
CONTROL
THERMAL
SHUTDOWN
OVERVOLTAGE
PROTECTION
HSD1
2.0A
HSD2
0.3A
HSD3
0.3A
HSD1
HSD2
HSD3
BLOCK DIAGRAM
ORDERING NUMBER:
L4954
Multiwatt15
1/7
相關PDF資料 |
PDF描述 |
|---|---|
| L4955V3.3 | 5A ULDO LINEAR REGULATORS FAMILY |
| L4955V33 | 5A ULDO LINEAR REGULATORS FAMILY |
| L4955V5.1 | 5A ULDO LINEAR REGULATORS FAMILY |
| L4955V51 | 5A ULDO LINEAR REGULATORS FAMILY |
| L4955 | 5A ULDO Linear Regulators Family(5A極低壓差線性穩(wěn)壓器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L4954_10 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Quad multifunction voltage regulator for car radio |
| L4955 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5A ULDO LINEAR REGULATORS FAMILY |
| L4955V3.3 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5A ULDO LINEAR REGULATORS FAMILY |
| L4955V33 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5A ULDO LINEAR REGULATORS FAMILY |
| L4955V5.1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5A ULDO LINEAR REGULATORS FAMILY |
發(fā)布緊急采購，3分鐘左右您將得到回復。