CS3750 Cherry Semiconductor Corporation, CS3750 Datasheet

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CS3750

Manufacturer Part Number
CS3750
Description
100mA Dual H-Bridge Air-Core Gauge Driver
Manufacturer
Cherry Semiconductor Corporation
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CS3750
Manufacturer:
NS
Quantity:
6 218
Part Number:
CS3750ENF16
Manufacturer:
MOTOROLA
Quantity:
69
Rev. 7/20/95
Supply Voltage .................................................................................7.5V to +16V
Internal Power Dissipation.....................................................Internally limited
Logic Input Voltages .......................................................................Ð0.3V to 6.5V
Junction Temperature Range ...................................................Ð40¡C to +150¡C
Storage Temperature Range .....................................................Ð55¡C to +165¡C
Lead Temperature Soldering
Electrostatic Discharge (Human Body Model)............................................8kV
The CS3750 is a dual H-bridge four
quadrant air-core gauge driver. The IC
provides all the functions necessary to
drive a tachometer or speedometer as
part of a microprocessor based multi-
plexed system. Digital input control
eliminates the need for any analog cali-
bration of the gauge.
The controlling microprocessor sends
out a PWM signal to each H bridge
driver input (IN1, IN2). The PWM sig-
nal duty cycle is proportional to the
HÐbridge output. Output current
V
Wave Solder (through hole styles only) ...........10 sec. max, 260¡C peak
S1,2
1/2 H -Bridge
with Current
Overvoltage
Shutdown
Thermal
V
OUT1A
100mA Dual H-Bridge Air-Core
REF
Driver
Limit
DIRECTION
Control
DIR1
1/2 H -Bridge
Absolute Maximum Ratings
with Current
OUT1B
Driver
Limit
Description
for PWM Input
RC Filter
Block Diagram
IN1
C1
Gauge Driver
1/2 H- Bridge
with Current
(100mA max) direction is controlled by
the DIRECTION input. PWM switch-
ing noise is minimized at each half
bridge by an internal RC filter and
external programmable capacitor.
The CS3750 is protected against 50V
load dump, over voltage and thermal
runaway fault conditions. Any of these
faults causes the IC to shut down. Each
high side of the output driver is current
limited. A short circuit condition in one
driver does not affect the others.
OUT2A
DIRECTION
Driver
Limit
Control
DIR2
CS3750
1/2 H- Bridge
OUT2B
with Current
for PWM Input
Driver
IN2
Limit
RC Filter
1
C2
Gnd
2000 South County Trail, East Greenwich, RI 02818
OUT1A
OUT1B
Tel: (401)885-3600 Fax: (401)885-5786
Cherry Semiconductor Corporation
DIR1
Web Site: www.cherry-semi.com
Gnd
Gnd
VS1
IN1
C1
2 Independent NPN
H-Bridge Drivers
No Analog Trim Required
Used in Multiplexed
Systems
Quiet Gauge Operation
Programmable Slew
Fault Protection
Thermal Shutdown
Email: info@cherry-semi.com
Package Options
(internally fused leads)
Rate Minimizes
Switching Noise
Over Voltage
Short Circuit
1
Features
16 Lead PDIP
A
¨
Company
DIR2
C2
IN2
Gnd
Gnd
OUT2A
VS2
OUT2B

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CS3750 Summary of contents

Page 1

... Dual H-Bridge Air-Core Description The CS3750 is a dual H-bridge four quadrant air-core gauge driver. The IC provides all the functions necessary to drive a tachometer or speedometer as part of a microprocessor based multi- plexed system. Digital input control eliminates the need for any analog cali- bration of the gauge ...

Page 2

Electrical Characteristics: 7.5V <= V PARAMETER Output Stage V Saturation Voltage I OUT (Low Side Offset Voltage V OUT V Saturation High Side V OUT Low Side V V Differential V OUT Matching Voltage Supply Current V Input ...

Page 3

PACKAGE PIN # 16L PDIP (internally fused leads 4,5,12, Output Stage Each output stage contains 4 power NPN transistors arranged in a traditional H bridge configuration. Current flow ...

Page 4

... REF: JEDEC MS-001 Ordering Information Part Number Description CS3750ENF16 16L PDIP (internally fused leads) Rev. 7/20/95 Package Specification Thermal Data D English R Min Max Min QJC 18 ...

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