TA7291AS TOSHIBA Semiconductor CORPORATION, TA7291AS Datasheet

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TA7291AS

Manufacturer Part Number
TA7291AS
Description
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
Full-Bridge Driver for DC Motors (driver for controlling the forward and reverse rotations)
The TA7291AP/TA7291AS (J)/TA7291AF 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)/TA7291AF 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 V
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.
Features
·
·
·
·
·
·
TA7291AP,TA7291AS(J),TA7291AF
Wide range of operating voltage: V
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
ref
pin on the output side. This pin is available for
: AS (J)/AF type 0.4 A (typ.) 1.2 A (peak)
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
: V
: V
V
CC (opr.)
S (opr.)
ref (opr.)
ref
must be ^ V
= 4.5 V to 27 V
= 4.5 V to 27 V
= 4.5 V to 27 V
S
.
1
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.)
TA7291AP
TA7291AS (J)
TA7291AF
TA7291AP/AS(J)/AF
2003-02-14

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TA7291AS Summary of contents

Page 1

... 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)/TA7291AF 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 ...

Page 2

... AS (J) type: Pin 4 is NC. AF type: Pin 10, 12, 14, and 16 are NC. For F type, we recommend the fin be connected to ground. V ref REG 1/5/1 GND TA7291AP/TA7291AS (J)/TA7291AF Function Description AF 11 Supply voltage pin for Logic 15 Supply voltage pin for motor driver 5 Supply voltage pin for control ...

Page 3

Function Input IN1 IN2 OUT1 High impedance ?: Note: Inputs are all active high. Maximum Ratings (Ta = 25°C) Characteristics Supply voltage Motor drive voltage Reference voltage AP ...

Page 4

Electrical Characteristics ( 25°C, V Characteristics Symbol I CC1-1 I CC1-2 I CC2-1 Supply current I CC2-2 I CC3-1 I CC3-2 Input 1 (High) V IN1 operating 2 (Low) V voltage IN2 Input current I IN ...

Page 5

... Note: The heat fin of the TA7291AF is connected to ground. Test Circuit IN1 IN2 IN ref IN1 V IN2 (max (min) Note: The heat fin of the TA7291AF is connected to ground CC3-2 7/2/11 4/8/5 8/6/15 5/9/7 TA7291AP/AS (J)/AF 6/1/9 10/3/13 1/5/1 GND 7/2/11 4/8/5 8/6/15 5/9/7 TA7291AP/AS (J)/AF 6/1/9 10/3/13 1/5/1 GND TA7291AP/TA7291AS (J)/TA7291AF 5 TA7291AP/AS(J)/AF A 2/7/4 A OUT1 2/7/4 OUT2 2003-02-14 ...

Page 6

... Note: The heat fin of the TA7291AF is connected to ground. Test Circuit U L-1 2 7/2/11 4/8/5 5/9/7 TA7291AP/AS (J)/AF 6/1/9 1/5 SAT U-1’ 2’ 3’ 4’ ref S 7/2/11 4/8/5 8/6/15 OUT1 5/9/7 2/7/4 TA7291AP/AS (J)/AF 6/1/9 10/3/13 OUT2 1/5/1 GND V S 8/6/15 OUT1 2/7/4 10/3/13 OUT2 TA7291AP/TA7291AS (J)/TA7291AF V S 8/6/15 SW OUT1 1 2/7/4 10/3/13 OUT2 TA7291AP/AS(J)/ 2003-02-14 ...

Page 7

... Al heat sink 2 ( (4) No heat sink 100 200 Pulse width t (s) TA7291AS (J) t – R 1000 500 300 100 175 0.1 1 Pulse width t (s) TA7291AF t – R (1) No heat sink (2) When mounted on a PCB (PCB area ´ ...

Page 8

TA7291AP V – I (Upper) CE (SAT) OUT 3.2 2.4 1.6 0 0.4 0.8 1.2 1.6 I (A) OUT V – V ref OUT ( Test circuit 7/2/11 ...

Page 9

... At power off (high 5/9/7 (low) is applied 6/1/9 flows IN TA7291AP/TA7291AS (J)/TA7291AF voltage circuit. Then, ref (Q2) appears on the 0.7 V ref TA7291AP/TA7291AS (J)/TA7291AF 9 TA7291AP/AS(J)/AF must be removed CC V standby 1/5/1 8/6/ 10/3/ 2/7/4 OUT V ref V 4/8/5 ...

Page 10

... The proper IC functions are not guaranteed at power on/off. Before using the IC, check that any IC malfunctions that are possible at power on/off will not cause a problem in the IC application. (Note 1) 7/2/11 8/6/15 4/8/5 2/7/4 TA7291P/S/F 10/3/13 1/5/1 GND TA7291AP/TA7291AS (J)/TA7291AF ref ( lines and the ground line with great care ...

Page 11

Package Dimensions Weight: 2.47 g (typ.) TA7291AP/AS(J)/AF 11 2003-02-14 ...

Page 12

Package Dimensions Weight: 0.92 g (typ.) TA7291AP/AS(J)/AF 12 2003-02-14 ...

Page 13

Package Dimensions Weight: 0.50 g (typ.) TA7291AP/AS(J)/AF 13 2003-02-14 ...

Page 14

RESTRICTIONS ON PRODUCT USE · TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress ...

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