CS3720 Datasheet, PDF (1/4 Pages) Cherry Semiconductor Corporation – 2A H-Bridge Driver

CS3720
2A H-Bridge Driver
Description
The CS3720 is high current (2A typ)
bidirectional DC motor driver. The
H-bridge output stage consists of
two pairs of power NPN transis-
tors, each with a V_SAT=2.3V at
I_OUT=2A (typ).
The three TTL compatible inputs,
ENABLE1, ENABLE2, and DIREC-
TION control the output stage.
When ENABLE1 is low and
ENABLE2 is high, DIRECTION
determines which way current
flows through the motor coil. Any
other combination of ENABLE set-
tings disables the outputs.
The CS3720 is protected against
overvoltage fault conditions. If a
fault condition is detected, the IC
shuts down.
Absolute Maximum Ratings
DC Input Voltage ..................................................................................-0.3 to 28V
Transient Input Voltage ...................................................................... -0.3 to 74V
Internal Power Dissipation......................................................Internally limited
Junction Temperature Range .....................................................-40¡C to +150¡C
Storage Temperature Range.......................................................-65¡C to +150¡C
Lead Temperature Soldering
Wave Solder (through hole styles only) ............10 sec. max, 260¡C peak
Reflow (SMD styles only) .............60 sec. max above 183¡C, 230¡C peak
Electrostatic Discharge (Human Body Model).............................................2kV
Features
s High Current (2A typ)
Output
s TTL compatible
DIRECTION Control
s Fault Protection
Overvoltage
Load Dump Protection to
74V
Package Options
7 Lead Power SIP
Block Diagram
V_SS
ENABLE1
ENABLE2
DIRECTION
V_REF
Overvoltage
Protection
DRIVE
CONTROL
LOGIC
Transient
Protection
Q₁
OUTPUT
DRIVER
+
Over
Current
Protection
OUTPUT
DRIVER
Ð
Q₄
Q₃
Over
Current
Protection
Q₂
Rev. 5/4/99
Gnd
1
2 ENABLE1
4 DIRECTION
6 COIL+
8 Gnd
10 COILÐ
12 V_SS
14 ENABLE2
COIL +
COIL -
7 Lead TO-220 7 Lead D²PAK
1
1 ENABLE1
2 DIRECTION
3 COIL+
1
4 Gnd
5 V_SS
6 COILÐ
7 ENABLE2
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: [phone] Fax: [phone]
Email: [e-mail]
Web Site: www.cherry-semi.com
A
¨ Company