CST118A Summary:

    CST118A is a single channel DC brushed motor driver IC, suitable for electronic locks, electric toothbrushes, toys, consumer products, and other low-voltage or battery powered motion control products.
    CST118A outputs a peak DC current of 2.5A and a continuous current of 1.8A, with a power supply operating range of 2V-6V.
    CST118A has a set of PWM (INA-INB) inputs, low output resistance, and is packaged in SOP8.

CST118A Feature:

Single channel built-in power MOS full bridge driver
Working voltage range: 2V-6V
Drive forward, backward, stop and brake functions
Low on resistance: high side+low side (HS+LS=400mΩ)
Built in hysteresis heating effect overheat protection function
The maximum continuous output current can reach 1.8A, with a peak value of 2.5A
No need for large peripheral filtering capacitors, only small surface mount capacitors are needed
Adopting SOP-8 encapsulation format

CST118A Application:

CST118A Ordering Instructions:

 CST118A Typical schematic diagram:

CST118A Pin diagram and pin description:

CST118A Limit parameter: (Note1)

Note 1. Absolute maximum rated value refers to the value at which the lifespan of the device may be damaged, which may cause permanent damage to the chip under absolute maximum rated conditions.

CST118A Electrical Characteristics:
(Unless otherwise specified, TA=25 ℃, VCC=3V, RL=15Ω)

CST118A内部框图:

CST118A输入/输出逻辑表:

CST118A输入/输出波形:

CST118A封装信息: