TA8050AK Datasheet | Toshiba

FEATURES l Bi-directional DC Motor Driver l 1.5A Current Capacity l Low standby current : 100μA (Max.) l 4 Operation mode of forward, Reverse, Stop and Brake l Remended operating supply voltage range: VCC = 8V to 16V l Built-in Protective Functions : Thermal-Shutdown Short-Circuit Protection Over-Voltage Protection l Built-in Counter Electromotive Force Absorption Diodes l HSIP 7 Pin Bushless Package BLOCK DIAGRAM AND PIN LAYOUT Weight: 2.2 g (typ.) 1 2002-02-27 PIN DESCRIPTION PIN No. 1 2 3 4 5 6 7 SYMBOL DI1 DI2 M (+) GND M (- ) NC VCC DESCRIPTION This terminal controls output condition. DC motor is connected to this terminal. The output current capacity is 1.5A. Diodes for counter electromotive force absorption are built in. Ground Terminal. Motor is connected between 3 pin and this terminal. This terminal has the same function as 3 pin and is controlled by 1 pin and 2 pin. Non connection. (Electrically, this pin is pletely open.) Power supply terminal. When the voltage higher than 30.0V is supplied, the output bees OFF to protect the IC and load. TRUTH TABLE Input DI1 H DI2 H H L L M (+) L Output M (- ) L OFF (High impedance) (Note) (Note) Note: Brake mode es into effect when both M (+) and M (- ) go low. Stop mode es into effect when both M (+) and M (- ) turn OFF. 2 2002-02-27 DESCRIPTION OF MULTI-PROTECTIVE OPERATION The TA8050AK has 3 protective functions of over voltage (VSD), over current (ISD), and thermal shut down (TSD). The purpose of these functions is to protect IC (including motor load) from destruction caused of over stress. These functions operate independently. Description of these functions is shown below. 1. Over-Voltage Protection (VSD) - Basic Operation When the supplied voltage to VCC terminal is lower than the VSD detection voltage, the output is controlled by the input signal and when this voltage is higher than the detection voltage, the output bees high impedance unrelated to the input...