Description
PIN No
Pin Name
Function
1 EN2 Enable pin for buck converter 2 2 CT2 Timing capacitor input 2 COMP2 Comparator inverting input 2 3 SW2 Switching output 2 4 IPK2 Current sense 2 5 6 PVcc1 Vcc for step down converter 1 7 PVcc2 Vcc for step down converter 2 VOFC+ 8 Focus driver output (+) VOFC9 Foc
Features
- (A) 4-channel BTL: 1) Two channels are voltage-type BTL drivers for actuators of tracking and focus. Two channels are voltage-type BTL driver for sled and spindle motors. It is also built-in two DC-DC converters. 2) Wide dynamic range for motor drive [3.6V (typ. ) when Vcc= 5V, at RL= 20 load]. (B) 2 DC-DC Step down converters: 1) Efficiency up to 85% 2) Operation from 4.5~16V 3) Typical frequency operation to 240KHz. 4) Over voltage protection built-in. 5) Over current protection built-in. (C) C.
AM5898N Datasheet
