參數(shù)資料
型號: U479B
廠商: ATMEL CORP
元件分類: 電源管理
英文描述: Automotive Lamp-outage Monitor IC
中文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8
封裝: DIP-8
文件頁數(shù): 1/8頁
文件大?。?/td> 138K
代理商: U479B
Rev. 4775A–AUTO–11/03
Features
2-kV ESD Protection
Two Comparators with Common Reference
Tight Threshold Tolerance
Threshold Matched to PTC Characteristic of Incandescent Lamps
Temperature Compensated
NPN Output
Interference and Damage-protection According to VDE 0839
EMI Protection
Reversal Polarity Protection
Load-dump Protection
Description
The monolithic integrated bipolar circuit, U479B, is designed as a monitor for lamp fail-
ure in automobiles. The comparator threshold is matched to the PTC characteristic of
incandescent lamps. The threshold is tied to V
4,6
= V
S
- V
T
where V
T
= 8 mV.
If the voltage drop across the shunt resistor, R
sh
, exceeds 8 mV, the output is turned
off, otherwise, the output is turned on. Without supply voltage or open input pin 8, the
output is turned off. A comparator input, which is not used, must be connected to
pin 7.
Figure 1.
Schematic and Application Circuit
-
+
-
+
-
+
&
&
2
7
4
8
6
5
3
1
150
V
S
Lamps
0.6 V
S
OUT1
OUT2
V
Batt
Z
2
R
sh
R
sh
R
1
Automotive
Lamp-outage
Monitor IC
U479B
相關(guān)PDF資料
PDF描述
U479B Automotive Lamp Outage Monitor, VT = 8 mV
U479B-FP Automotive Lamp Outage Monitor, VT = 8 mV
U5FWK2C42 SWITCHING MODE POWER SUPPLY APPLICATION
U5GWJ2C42C Switching Mode Power Supply Application
U60D05 POWER RECTIFIERS(60A,50-200V)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
U479B_07 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Automotive Lamp-outage Monitor IC
U479B-FP 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Automotive Lamp Outage Monitor, VT = 8 mV
U479B-M 功能描述:IC MON LAMP-OUTAGE 8MV 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 照明,鎮(zhèn)流器控制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:CCFL 控制器 頻率:40 ~ 80 kHz 電流 - 電源:5mA 電流 - 輸出:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01
U479B-MFP 功能描述:IC MON LAMP-OUTAGE 8MV 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 照明,鎮(zhèn)流器控制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:CCFL 控制器 頻率:40 ~ 80 kHz 電流 - 電源:5mA 電流 - 輸出:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01
U479B-MFPG3 功能描述:IC MON LAMP-OUTAGE 8MV 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 照明,鎮(zhèn)流器控制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:CCFL 控制器 頻率:40 ~ 80 kHz 電流 - 電源:5mA 電流 - 輸出:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01