參數(shù)資料
型號: U643B
廠商: TEMIC SEMICONDUCTORS
元件分類: 模擬信號調(diào)理
英文描述: Flasher, 30-mohm Shunt
中文描述: SPECIALTY ANALOG CIRCUIT, PDIP8
封裝: DIP-8
文件頁數(shù): 1/5頁
文件大?。?/td> 57K
代理商: U643B
U643B
Rev. A3, 10-Apr-01
1 (5)
Flasher, 30-m Shunt
Description
The bipolar integrated circuit U643B is used in relay-
controlled automotive flashers where a high-level EMC
is required.
Lamp outage is indicated by frequency doubling during
hazard warning as well as direction mode.
Features
Temperature and supply voltage compensated
flashing frequency
Frequency doubling indicates lamp outage
Relay driver output with high current
carrying capacity and low saturation voltage
Minimum lamp load for flasher operation:
1 W
Very low susceptibility to EMI
Protection according to ISO/TR 7637/1 level 4
Block Diagram
V
6
–81 mV
20 k
5 k
20 k
5 k
23 V
Pulse
generator
IC Ground
20 k
1.5...2.2 k
Relay
7
3
8
1
+ V
S
+ 49
R
3
470
R
4
49 a
4
5
K
2
K
1
K
3
C
1
R
1
6
2
95 9756
49 a–Comparator K
3
49 a–Comparator K
2
21 W 21 W 5 W
21 W
Indicator lamps
21 W
5 W
GND
– 31
R
2
Measuring comparator K
1
Shunt
30 m
Figure 1. Application circuit as a car flasher, Resistor R
1
and R
2
: 1/4 Watt
R
4
for protection against continuous reversed polarity: 0.5 Watt
Ordering Information
Extended Type Number
U643B
U643B-FP
Package
DIP8
SO8
Remarks
相關(guān)PDF資料
PDF描述
U6803B Triple-Driver IC with Thermal Monitoring
U6803B Triple-Driver with Thermal Monitoring
U6803B-FP Triple-Driver with Thermal Monitoring
U6803B-MFP Triple-Driver IC with Thermal Monitoring
U6803B-MFPG3 Triple-Driver IC with Thermal Monitoring
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
U643B_05 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Flasher, 30-mohm Shunt
U643B2-B 制造商:Vishay Siliconix 功能描述:U643B2-B - Bulk
U643B-FP 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Flasher, 30-mohm Shunt
U643B-M 功能描述:IC FLASHER 30M OHM SHUNT 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(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01
U643B-MFP 功能描述:IC FLASHER 30M OHM SHUNT 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(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01