TA7291AP/AS(J)/ASG(J)/AF/AFG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA7291AP, TA7291AS(J)/ ASG(J),
TA7291AF/AFG
Full-Bridge Driver for DC Motors (driver for
controlling the forward and reverse rotations)
TA7291AP
The TA7291AP/AS (J)/ASG(J)/AF/AFG is a full-bridge driver to
control the forward and reverse rotations. Each driver can select
one of four modes: CW, CCW, stop, brake.
The TA7291AP is designed to provide output currents of 1.0 A (typ.)
and 2.0 A (peak). The TA7291AS (J)/ASG(J)/AF/AFG is designed to
provide output currents of 0.4 A (typ.) and 1.2 A (peak).
There are two different power supply pins for each driver: one on
the output side and the other on the control side of the driver. Also,
there is the Vref pin on the output side. This pin is available for
adjusting the voltage supplied to the motor.
The input circuit of the driver is compatible with CMOS logic
because it draws a small amount of input current.
TA7291AS (J)/ASG(J)
Features
•
Wide range of operating voltage: VCC (opr.) = 4.5 V to 27 V
: VS (opr.) = 4.5 V to 27 V
: Vref (opr.) = 4.5 V to 27 V
TA7291AF/AFG
Vref must be ≤ VS.
•
Output current: AP type 1.0 A (typ.) 2.0 A (peak)
•
Thermal shutdown and overcurrent protection
•
Flyback diodes
•
Hysteresis for all inputs
•
Standby mode available
: AS (J)/AF type 0.4 A (typ.) 1.2 A (peak)
Weight
HSIP10-P-2.54: 2.47 g (typ.)
SIP9-P-2.54A: 0.92 g (typ.)
HSOP16-P-300-1.00: 0.50 g (typ.)
TA7291ASG(J)/AFG:
About solderability, following conditions were confirmed
*solderability
1. Use of Sn-63Pb solder Bath
*solder bath temperature=230 degrees
*dipping time=5seconds
*the number of times=once
*use of R-type flux
2. Use of Sn-3.0Ag-0.5Cu solder Bath
*solder bath temperature=245 degrees
*dipping time=5seconds
*the number of times=once
1
2003-10-23
