器件名称: U6046B
功能描述: REAR WINDOW HEATING TIMER / LONG-TERM TIMER
文件大小: 247.71KB 共13页
简 介:Features
Delay Time Range: 3.7 s to 20 h RC Oscillator Determines Timing Characteristics Relay Driver with Z-diode Debounced Input for Toggle Switch Two Debounced Inputs: ON and OFF Load-dump Protection RF Interference Protected Protection According to ISO/TR7637-1 (VDE 0839) Inputs Switched to VBatt
Description
The bi-polar long-term timer U6046B is designed to automatically limit the operation time of high loads in the harsh automotive enviroment with a preset delay time. With the power-on-reset function the timers guarantee that current consuming devices are not operated unintentionally. The delay time can be interrupted manually, but a retrigger function is not provided. Figure 1. Block Diagram with External Circuit
47 mF Vstab VS
Rear Window Heating Timer/ Long-term Timer U6046B
C2 OSC 6
R2
C1
R1
7
8
510 W
VBatt
Oscillator
Stabilization Power-on reset Load-dump detection
1 GND
Frequency divider 3 ON 4 OFF 5 TOGGLE Debouncing Mono-flop Relay control output 2 OUT
Rev. 4674A–AUTO–01/03
1
Pin Configuration
Figure 2. Pinning
GND 1 8 VS
OUT
2
7
VSTAB
ON
3
6
OSC
OFF
4
5
TOGGLE
Pin Description
Pin 1 2 3 4 5 6 7 8 Symbol GND OUT ON OFF TOGGLE OSC VSTAB VS Function Reference point, ground Relay control output Switch-on input Switch-off input Toggle input RC-oscillator input Stabilized voltage Supply voltage
2
U6046B
4674A–AUTO–01/03
U6046B
Functional Description
Power Supply (Pin 8)
For reasons of interference protection and surge immuni……
