U6046B Datasheet, PDF (1/11 Pages) TEMIC Semiconductors – Rear Window Heating Timer

Rear Window Heating Timer
U6046B / U6047B
Description
The window heating timers are bipolar integrated
circuits. Due to time controlled functions, they reduce the
current consumptions of high loads i.e., heating resistors.
An ON-relay can be switched off after a preset delay time.
The relay time can be interrupted manually, whereas a
retrigger function is not provided.
Features
D Delay time range: 3.7 s to 20 h
D RC oscillator determines switching characteristics
D Relay driver with Z-diode
D Debounced input for toggle switch
D Two debounced inputs: ON and OFF
D Load-dump protection
D RF interference protected
D Protection according to ISO/TR7637-1 (VDE 0839)
D U6046B: Inputs switched to V_Batt
D U6047B: Inputs switched to ground
Ordering Information
Extended Type Number
U6046B, U6047B
U6046B–FP, U6047B–FP
Package
DIP8
SO8
Remarks
Block Diagram
C₂
OSC 6
R₂
47 mF
C₁
R₁
V_stab 7
V_{S 8}
510 W
V_Batt
Oscillator
Stabilization
Power-on reset
Load-dump detection
1
GND
3
ON
4
OFF
5
TOGGLE
Frequency divider
Debouncing
Monoflop
2
Relay control
output
94 8747
Figure 1. Block diagram with external circuit
TELEFUNKEN Semiconductors
Rev. A2, 03-Feb-97
1 (11)