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Part Name
Description
CA3275E View Datasheet(PDF) - Intersil
Part Name
Description
Manufacturer
CA3275E
Dual Full Bridge Driver
Intersil
CA3275E Datasheet PDF : 5 Pages
1
2
3
4
5
CA3275
DIRA
PWMA
V
CC
INTERNAL VOLTAGE
SUPPLY WITH
BANDGAP REFERENCE
OVERVOLTAGE PROTECTION
AND THERMAL SHUTDOWN
CIRCUITS
DIRB
PWMB
V
CC
SHORT
CIRCUIT
PROTECTION
Q1
POWER
SHORT
CIRCUIT
PROTECTION
Q3
POWER
COIL A–
Q2
POWER
COIL A+
Q4
POWER
SHORT
CIRCUIT
PROTECTION
SHORT
CIRCUIT
PROTECTION
V
CC
SHORT
CIRCUIT
PROTECTION
Q5
POWER
SHORT
CIRCUIT
PROTECTION
Q7
POWER
COIL B–
Q6
POWER
COIL B+
Q8
POWER
SHORT
CIRCUIT
PROTECTION
SHORT
CIRCUIT
PROTECTION
PWMB
DIRB
DIRA
FIGURE 1. CA3275 DUAL FULL BRIDGE DRIVER SCHEMATIC
V
CC
COIL A–
1
V
CC
2
V
CC
3
PWMB
4
DIRB
5
V
CC
6
COIL B–
7
COIL A+
14
GND
13
PWMA
12
DIRA
11
GND
10
GND
9
COIL B+
8
RA
LA
STEP
MOTOR
LB
RB
PWMA
FIGURE 2. QUADRATURE STEP-MOTOR APPLICATION SCHEMATIC
6-5
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