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부품번호 | U690B 기능 |
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기능 | Rear Wiper Interval/Wipe-Wash Control | ||
제조업체 | TEMIC Semiconductors | ||
로고 | |||
Rear Wiper Interval/Wipe-Wash Control
U690B
Description
The bipolar integrated circuit, U690B, is designed with a
time coded input for the rear pane wiper application. The
length of the input signal determines the mode of
operation i.e., intermittent or wipe/ wash; therefore, only
one signal line is sufficient from the input switch to the
electronic module.
Features
D Time controlled interval/ wipe-wash
D Wiper arm’s park position control
D Interval pause typ. 7 s
D Dry wiping time typ. 4.4 s
D Multipurpose frequency comparator
D Relay driver with Z-diode
D RC-oscillator determines switching characteristics
D Debounced main signal input
D Power-on reset by low-voltage identification
D Protection according to ISO / TR 7637–1 (VDE 0839)
D Load-dump protection
Applications
Speed or R.P.M. detection
Ordering Information
Extended Type Number
U690B
Package
DIP8
Remarks
Pin Configuration
Pin Symbol
Function
1 GND Ground
2 Output Relay control output
3 Input Signal input
4 Retrigger Retrigger
5 Program Program input
6 OSC RC-oscillator
7 Hyst Hysteresis output
8 Vstab Supply voltage 7.3 V
GND 1
Output 2
8 Vstab
7 Hyst
Input 3
6 OSC
Retrigger 4
5 Program
94 9328
Figure 4. Pinning
TELEFUNKEN Semiconductors
Rev. A2, 28-Apr-97
1 (9)
U690B
Interval mode
ON
Pin 3
Pin 4
tp
Pin 2
t1 t2
t3
t4
OFF
tp
t1 t2
Wipe / wash mode
Pin 3
Pin 4
Pin 2
t1
tp
t5
Wipe / wash mode with retrigger
Pin 3
Pin 4
Pin 2
t1
tp
t5
t6
t2
94 8870
tp: Operating time
t1: Debounce time
t2: Relay active
t3: Interval time
t4: Interval pulse
t5: Dry wiping time
t6: Retrigger
Figure 4. Pulse diagram for different modes – wipe/wash
()
Rev. A2, 28-Apr-97
4페이지 Applications
Frequency Comparator
Speed Depending Switch with Hysteresis,
Figure 5
This circuit can be used to activate a load, such as a
warning lamp or buzzer via the relay (terminal A) at a
certain speed. The speed information is applied to signal
input, Pin 3, e.g. from Hall generator via terminal V.
It is compared in the integrated circuit with a reference
frequency created by the oscillator. The oscillator
frequency, f, is generated with external resistor, R2kR7,
and capacitor, C2.
If the frequency at Pin 3 is less than f/64, the relay control
ouput is deactivated.
If the frequency at Pin 3 is greater than f/64, the relay
control output is activated and at the same time the
hysteresis output, Pin 7, is disabled, the frequency is
reduced. This means Pin 7 supplies no current for
charging the capacitor, C2; therefore, R2 and C2 alone
define the oscillator frequency i.e., f [ R2@C2.
The hysteresis frequency is determined with the resistor,
R7.
Motor Speed Depending Switch with
Hysteresis, Figure 6
This circuit, figure 6, has the same function as the speed
with hysteresis mentioned above.
Information regarding motor speed (rpm) from the
ignition coil is delivered to signal input, Pin 3, via
terminal 1. Resistor values, R3 and R5 are so
dimensioned, that there is a peak voltage of nearly 3 V at
Pin 3 (from the ignition coil). Pin 4 is connected to GND,
so that there is a bypass for debouncing. In this way,
ignition pulse is supplied to frequency comparator.
U690B
8
C1
1
94 8866
R2 R1
C2
R7
765
R8
U690B
D1
Relay
2 34
C3 R3
D2
Z1
15
A
V
31
Figure 5. Speed switch
R2 R1
C2
R7
8 76 5
D1 15
C1 U 690 B
1234
94 8867
R5
Relay A
1
R3
31
Figure 6. Motor speed switch with hysteresis
TELEFUNKEN Semiconductors
Rev. A2, 28-Apr-97
7 (9)
7페이지 | |||
구 성 | 총 9 페이지수 | ||
다운로드 | [ U690B.PDF 데이터시트 ] |
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부품번호 | 상세설명 및 기능 | 제조사 |
U690B | Rear Wiper Interval/Wipe-Wash Control | TEMIC Semiconductors |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |