參數(shù)資料
型號: U6081B
英文描述: PWM Power Control with Low Duty Cycle Switch Off
中文描述: PWM功率控制關閉低占空比開關
文件頁數(shù): 1/8頁
文件大?。?/td> 121K
代理商: U6081B
U6081B
TELEFUNKEN Semiconductors
Rev. A1, 14-Feb-97
1 (8)
PWM Power Control with Low Duty Cycle Switch Off
Description
U6081B is a PWM IC in bipolar technology for the
control of an N-channel power MOSFET used as a high
side switch. The IC is ideal for the use in the brightness
control (dimming) of lamps e.g., in dashboard
applications.
Features
Pulse width modulation up to 2 kHz clock frequency
Protection against short circuit, load dump overvol-
tage and reverse V
S
Duty cycle 0 to 100%
Output stage for power MOSFET
Interference and damage protection according to
VDE 0839 and ISO/TR 7637/1.
Ground wire breakage protection
Charge pump noise suppressed
Ordering Information
Extended Type Number
U6081B
Package
DIP8
Remarks
Block Diagram
Current monitoring
+ short circuit detection
Output
Charge
pump
RC oscillator
Duty cycle
range
0/13 to 100 %
Control input
Voltage
monitoring
5
1
4
3
V
S
C
5
PWM
Logic
6
7
8
47 k
47 nF
R
sh
2
R
3
150
95 9752
V
Batt
C
3
C
2
C
1
Ground
Figure 1. Block diagram with external circuit
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