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U2640B 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 U2640B은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 U2640B 기능
기능 Intemittent- and Wipe/ Wash Control
제조업체 ATMEL Corporation
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U2640B 데이터시트, 핀배열, 회로
www.DataSheet4U.com
U2640B
Intemittent- and Wipe/ Wash Control for Wiper Systems
Description
With the U264xB, Atmel Wireless & Microcontrollers
developed a family of intermittent- and wipe/wash con-
trol circuits for windshield or backlite wiper systems with
identical basic functions. The circuit design provides the
possibility to generate ”x” versions using different metal-
lization masks. Thus, it is easy to verify a broad range of
time sequences which can be set independently of each
other.
Features
D Relay activation can be controlled by a limit switch of
the wiper motor or by a fixed activation period for
systems without limit switch
D Debounced input stages
D Enable/disable of pre-wash delay by program pin
D Polarity of WIWA: VBatt
D Polarity of INT: VBatt
D Relay output is protected with a clamping diode
D Relay activation: 0.48 s
D Interval pause: 5.8 s
D After wiping:
5.2 s
D Pre-wash delay: 0.52 s
D Wipe/wash mode with priority
D Protected in accordance to ISO/TR 7637–1
D EMC with intergrated filters
Block Diagram
VS
OSC
Voltage
stabilization
and
POR
Oscillator
INT
WIWA
LS
PP
21 V
21 V
21 V
Input
comparator
21 V
Logic
Load-
dump
detection
and
output
control
Open-collector
relay driver
21 V
REL
GND
Figure 1. Block diagram
Ordering Information
Extended Type Number
U2640B
U2640B–FP
Package
DIP8
SO8
13944
Remarks
Rev. A4, 03-Apr-01
1 (10)




U2640B pdf, 반도체, 판매, 대치품
U2640B
Absolute Maximum Ratings
With recommended external circuitry
Parameter
Test Conditions
Supply voltage (static)
5 min
Supply current pulse
2 ms
Supply current pulse
300 ms
Relay output current (static)
Relay output current pulse
300 ms
Ambient temperature range
Storage temperature range
Power dissipation
DIP8
Power dissipation
SO8
Symbol
VBatt
IS
IS
IREL
IREL
Tamb
Tstg
Ptot
Ptot
Value
24
1.5
150
300
1.5
–40 to +95
–55 to +125
0.45
0.34
Unit
V
A
mA
mA
A
°C
°C
W
W
Thermal Resistance
Junction ambient
Junction ambient
Parameters
DIP8
SO8
Symbol
RthJA
RthJA
Value
120
160
Unit
K/W
K/W
Electrical Characteristics
Reference point Ground GND, Tamb = 25_C, VBatt = 13.5 V, unless otherwise specified (see figures 11 and 12)
Parameters
Voltage supply
Supply voltage
Supply current
Undervoltage threshold
(POR)
Internal Z-diode
Internal capacitor
Series resistance
Filter capacitor
Oscillator input OSC
Internal discharge resistor
Lower switching-point
voltage
Upper switching-point
voltage
Input current
Oscillator frequency
Test Conditions / Pin
Pin 7
Pin 8
VOSC = 0 V
Symbol Min Typ Max Unit
VBatt
IS
VS
6.0
0.5
3.0
16.0 V
2.0 3.0 mA
5.1 V
VZ 13.5 14.0 16.2 V
CS 15 pF
RV 510 W
CV 47 mF
RDIS
1.3
2.0
3.2
VOSC 0.16 VS 0.20 VS 0.24 VS
VOSC 0.55 VS 0.60 VS 0.65 VS
–IOSC
fOSC
1
2
200 50 k
kW
V
V
mA
Hz
Note: All internally generated time sequences are derived from the oscillator frquency. The tolerances refer to a
frequency adjusted to fOSC = 200 Hz.
4 (10)
Rev. A4, 03-Apr-01

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U2640B 전자부품, 판매, 대치품
U2640B
0.8
0.7
0.6
0.5
0.4
0.3
0.2
–40 –20
0 20 40 60
Temperature (°C )
80 100
Figure 7. Relay activation = f (Temperature)
0.8
0.7
0.6 max
0.5
min
0.4
0.3
0.2
–40 –20
0 20 40 60
Temperature (°C )
80 100
Figure 8. Pre-wash delay = f (Temperature)
8
7
6
5
4
3
2
1
0
–40 –20
0 20 40 60
Temperature (°C )
max
min
80 100
Figure 9. After-wipe time = f (Temperature)
8
7
6
5
4
3
2
1
0
–40 –20
0 20 40 60
Temperature (°C )
80 100
Figure 10. Interval pause = f (Temperature)
Note: The temperature characteristic is caused by the temperature coefficient TC of the external capacitor
Rev. A4, 03-Apr-01
7 (10)

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부품번호상세설명 및 기능제조사
U2640B

Intemittent- and Wipe/ Wash Control

ATMEL Corporation
ATMEL Corporation

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