TB6643KQ Datasheet, PDF (1/15 Pages) Toshiba Semiconductor – Full-Bridge DC Motor Driver IC

TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB6643KQ
Full-Bridge DC Motor Driver IC
The TB6643KQ is a full-bridge DC motor driver IC employing
the MOS process for output power transistors.
The low ON-resistance MOS process and PWM control enables
driving DC motors with high thermal efficiency.
Four operating modes are selectable via IN1 and IN2: clockwise
(CW), counterclockwise (CCW), Short Brake and Stop.
Features
 Power supply voltage: 50 V (max)
 Output current: 4.5 A (max)
 Output ON-resistance: 0.55  (typ.)
 PWM control
 CW/CCW/Short Brake/Stop modes
 Overcurrent shutdown circuit (ISD)
 Overvoltage shutdown circuit (VSD)
 Thermal shutdown circuit (TSD)
 Undervoltage lockout circuit (UVLO)
 Dead time for preventing shoot-through current
Weight: 2.2 g (typ.)
TB6643KQ
Note: The following conditions apply to solderability:
About solderability, following conditions were confirmed
(1) Use of Sn-37Pb solder Bath
 solder bath temperature: 230°C
 dipping time: 5 seconds
 the number of times: once
 use of R-type flux
(2) Use of Sn-3.0Ag-0.5Cu solder Bath
 solder bath temperature: 245°C
 dipping time: 5 seconds
 the number of times: once
 use of R-type flux
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2011-06-21