UA1538

DESCRIPTION

The UTC UA1538 contains a 4ch H bridge driver and 

DC-DC converter control circuit on one chip, and was

developed for use in portable CD players. 

FEATURES 

* Built-in 4ch H bridge driver and PWM control of load drive 

voltage is made possible by external components. 

* DC-DC converter control circuit on chip. 

* With reset output inversion output pin. 

* Empty detection level can be switched between rechargeable 

battery and dry battery. 

* Constant current charging; current value can be varied using 

external resistor. 

* Built-in power transistor for charging. 

* Built-in independent thermal shutdown circuit. 

规格书UA1538