DESCRIPTION

The M56758FP is a semiconductor integrated circuit designed for a actuator driver used for MD, CD-audio, etc. This device can function 5-channel-actuators by 1 chip due to include 5 channel BTL drivers.

Sufficient output dynamic range can be obtained by low supply voltage because saturation voltage of power output is low. All channels include level shift circuit in order that output swings most suitably although reference voltage of signal disposal system in each system becomes 1.5V. And, differential PWM control is possible since all channels are composed of Differential input structure. Also, as this device includes general purpose OP amp, it is suited to wide-ransing application. Further more, this devise is able to power save since it includes mute circuit.

FEATURES

● 3.3V DSP available

● Low saturation voltage.

(Typical 1.35V at load current 0.5A and no bootstrap condition.)

Absolute maximum rating of load current: CH1 – 5 500mA

A bootstrap function is available.

● There are two motor power supplies.

Vm1 CH1, 2 motor power supply-1

Vm2 CH3, 4, 5 motor power supply-2

● Built-in OP amp. for Regulator. (Enables Regulator structure by

using external PNP Tr. and resistor.)

● Flexible Input amp. setting.

Enables PWM control.

● Low cross-over distortion.

● Wide supply voltage range. (4.5V – 13.2V)

● Built-in Thermal protection.

● Built-in Mute circuit. (two systems)

MUTE1: CH1 – 4, MUTE2: CH5

APPLICATION

MD, CD-audio, CD-ROM, VCD, DVD etc.