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부품번호 | CS8442XN8 기능 |
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기능 | 85mA Dual H-Bridge Odometer Driver with Buffered Speed Signal Output | ||
제조업체 | Cherry Semiconductor Corporation | ||
로고 | |||
CS8442
85mA Dual H-Bridge Odometer Driver
with Buffered Speed Signal Output
Description
Features
The CS8442 is a stepper motor
driver that implements an H-
bridge design to drive two coils in
an eight step sequence each revo-
lution. Each H-bridge is capable of
delivering 85mA to the load.
The sequencer function insures
that the odometer is monotonic
and that cross-conduction of each
H bridges does not occur. Before
the beginning of each sequence,
both bridges are turned off. This
Òdead zoneÓ minimizes the fly
back energy generated in the
inductive loads. In addition, on
board clamp diodes across each
output protect the output drive
transistors from excessive fly back
voltages.
The CS8442 is fault protected
against reverse battery, short cir-
cuit, and over voltage conditions.
If a fault is detected, the IC shuts
down.
The buffered speed signal output
(SENSOR OUT) is an open collec-
tor NPN capable of driving a
4.7k½ load connected to a 5V sup-
ply. The signal is a buffered,
inverted version of the speed sen-
sor input voltage (SENSOR IN).
The input voltage can be either a
sine or square wave form.
Absolute Maximum Ratings
Supply Voltage (VCC) (continuous) -40ûC to +105ûC ..................Ð0.5 to 24V
(100ms pulse transient) -40ûC to +105ûC ......................Ð0.5 to 60V
Input Voltage (VIN) ..............................................................Ð0.3 to VCC +0.3V
Storage Temperature Range (TSTG)......................................Ð65¡C to +150¡C
Junction Temperature.............................................................Ð40¡C to +150¡C
Speed Sensor Output .....................................................................................7V
ESD (Human Body Model) .........................................................................2kV
Lead Temperature Soldering
Wave Solder (through hole styles only) ........10 sec. max, 260¡C peak
Block Diagram
SENSOR
IN
Input
Comp.
Coil
Driver
A
COILA+
COILA-
s Buffered Speed Sensor
Output
s No Cross-conduction in
either H-bridge
s Guaranteed Monotonic
s On Chip Flyback Diodes
s Fault Protection
Overvoltage
Short Circuit Protection
Load Dump Protection
to 60V
Package Options
8L PDIP
Gnd 1
COILA+
COILAÐ
SENSOR
IN
VCC
COILB+
COILBÐ
SENSOR
OUT
SENSOR
OUT
Rev. 8/2/93
Sequencer
Overvoltage
and Short
Circuit
Protection
Coil
Driver
B
COILB+
COILB-
1
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: [email protected]
Web Site: www.cherry-semi.com
A ¨ Company
C1 - 10µF
C2 - 0.1µF
C3 - 0.01µF
R1 - 3.9½ 0.5W
R2 - 100k½
R3 - 15k½
D1 - 1A 600PIV
Z1 - 50V 0.5W
COIL A - 210±12½, 80mH
COIL B - 210±12½, 80mH
Application Diagram
D1 R1
IGN
Buffered Speed Signal
(Open Collector Drive)
Z1
R3
R2
COILA+ COILAÐ COILB+ COILBÐ
CS8442
SENSOR IN
VCC SENSOR OUT Gnd
C1 C2
C3
Package Specification
PACKAGE DIMENSIONS IN mm (INCHES)
PACKAGE THERMAL DATA
Lead Count
8L PDIP
Metric
Max Min
10.16 9.02
D
English
Max Min
.400 .355
Thermal Data
RQJC
typ
RQJA
typ
8L PDIP
52
100
ûC/W
ûC/W
Plastic DIP (N); 300 mil wide
7.11 (.280)
6.10 (.240)
3.68 (.145)
2.92 (.115)
8.26 (.325)
7.62 (.300)
1.77 (.070)
1.14 (.045)
2.54 (.100) BSC
.356 (.014)
.203 (.008)
REF: JEDEC MS-001
0.39 (.015)
MIN.
.558 (.022)
.356 (.014)
D
Some 8 and 16 lead
packages may have
1/2 lead at the end
of the package.
All specs are the same.
Ordering Information
Part Number
CS8442XN8
Description
8L PDIP
Rev. 8/2/93
Cherry Semiconductor Corporation reserves the
right to make changes to the specifications without
notice. Please contact Cherry Semiconductor
Corporation for the latest available information.
4 © 1999 Cherry Semiconductor Corporation
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부품번호 | 상세설명 및 기능 | 제조사 |
CS8442XN8 | 85mA Dual H-Bridge Odometer Driver with Buffered Speed Signal Output | Cherry Semiconductor Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |