3 Full-Swing/Constant Voltage Drivers Controlled by Serial Input with Brake Function
1 Constant Current Drivers for Shutter or IRIS
Internal Power MOSFET Switch RDSON
▪Upper on Resistance: 0.7Ω
▪Lower on Resistance: 0.5Ω
Output Current:IOUT≦0.8A(max.) for Each Channel
Thermal Shutdown
CH1/2 Supports Stepping Motor Control of 2-2 Phase or 1-2 Phase
CH13/23 Provides the Combination Control Setting of CH5 in Exclusive Control Mode
CH3/4 Provides the Combination Control Setting of CH6 in Exclusive Control Mode
Power Save Mode Controlled by Serial Input
3 Photo Sensor Driving Transistors Incorporated
UVLO (Under Voltage Lockout Protection)
Available in 3mm x 3mm x 0.75mm 20-Lead WQFN Package
General Description
AAT6952 integrates 4+2 H-bridge channels and three photo sensor driving transistor to provide highly efficient motor-driving solution for digital still cameras. These multiple channels include three Constant-voltage/Full- swing H-bridge channels and one Constant-voltage /Constant-current/Full-swing H-bridge channel. The AAT6952 is capable of driving DC motors, Stepping motors, Shutter, and IRIS motors according to the serial control signal generated by CPU. The AAT6952 also features fault protection such as UVLO and Thermal Shutdown.