TA8261AH Ver la hoja de datos (PDF) - Toshiba

Número de pieza

componentes Descripción

Fabricante

TA8261AH

Max Power 40 W BTL × 4CH Audio Power IC

Toshiba 

TA8261AH

2. Stand-by SW function (pin 2)

By means of controlling pin 2 (Stand-by terminal) to

High and Low, the power supply can be set to ON and

OFF.

The threshold voltage of pin 2 is set at about 3 VBE

(typ.), and the Power Supply current is about 2 µA

(typ.) at the stand-by state.

Control voltage of pin 2: V (SB)

Stand-By

Power

V (SB) (V)

ON

OFF

0~1.5

OFF

ON

3~VCC

Figure 2 With pin 2 set to High, power

is turned ON

Adjustage of stand-by SW

(1) Since VCC can directly be controlled to ON or OFF by the microcomputer, the switching relay can be

omitted.

(2) Since the control current is microscopic, the switching relay of small current capacity is satisfactory

for switching

― Conventional method ―

― Stand-by switch method ―

Figure 3

4

2001-08-16

Share Link: