3951
FEATURES
I I I I I I I I ± 2 A Continuous Output Current Rating 50 V Output Voltage Rating Internal PWM Current Control Internal Transient Suppression Diodes Under-Voltage Lockout Internal Thermal Shutdown Circuitry Crossover-Current Protection Default Brake Current Limit
Always order by plete part number: Part Number A3951SB A3951SW Package 16-Pin DIP 12-Pin Power-Tab SIP RθJA 43°C/W 36°C/W RθJT 6.0°C/W 2.0°C/W
FULL-BRIDGE PWM MOTOR DRIVER
FUNCTIONAL BLOCK DIAGRAM
LOGIC SUPPLY LOAD SUPPLY OUTA OUTB
PHASE UVLO & TSD
ENABLE
REF/ BRAKE
INPUT LOGIC
R 9R
BLANKING
PWM LATCH
1.5 V
+
- R GROUND
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
SUFFIX 'W', R θJT = 2.0°C/W
SUFFIX 'B', RθJT = 6.0°C/W
TRUTH TABLE
BRAKE ENABLE PHASE OUTA Z H...
