AMM2288
Triple BTL Power Driver

Features

1) No external component.
2) Single power supply.
3) Low output offset voltage.
4) ESD protection on all pins.
5) DIP16 package for AMM2288A, SO16 package for AMM2288AT
6) Build-in thermal shutdown
7) Loading driver is current-controlled by external resistor

Description

The AMM2288 is triple power driver circuits in a BTL configuration, intended for use as a power driver for servo systems with a single supply. It is particularly designed for compact disc players and is capable of driving focus, tracking, sled , spindle functions and loading motors.

Because of the BTL configuration, the device can supply bi-directional DC current in the load, with
only a single supply voltage. The voltage gain of channel 1,2 is fixed by internal feedback at 15.5dB and the device operate in a supply voltage ranges 5 ~14V. The differential input can handle common mode input voltage from ground level up to VP-3.2V. The maximum output current of loading driver is controlled by an external resistor, which is normally in the range of 6~15 ohms.

Typical Application

Functional Block Diagram