Rainbow-electronics BA9708K Manual do Utilizador descarregar pdf

295

Regulator ICs

3-channel switching regulator

BA9708K

The BA9708K, a 3-channel switching regulator that uses a pulse width modulation (PWM) system, can drive all channel

PNP transistors directly.

Applications

VCRs and other portable equipment

Features

1) Reference voltage precision is ± 1%.

2) Output stages are based on the push-pull method

(resembling the totem-pole method), and ON / OFF

currents can be set independently.

3) Triangular waves can be externally synchronized.

4) Pins allow ON / OFF control of channel 3 only, or all

channels at once.

Absolute maximum ratings (Ta = 25C)

Recommended operating conditions (Ta = 25C)

1 2 3 4 5 6

295Regulator ICs3-channel switching regulatorBA9708KThe BA9708K, a 3-channel switching regulator that uses a pulse width modulation (PWM) system, can

296Regulator ICs BA9708KBlock diagram

297Regulator ICs BA9708KPin descriptions

298Regulator ICs BA9708KElectrical characteristics (unless otherwise noted, Ta = 25C and VCC = 6V)

299Regulator ICs BA9708K

300Regulator ICs BA9708KReference data (unless otherwise noted, Ta = 25C and VCC = 6V)Electrical characteristic curvesExternal dimensions (Units:

Sem comentários

Rainbow-electronics BA9708K Manual do Utilizador