TS2012FC View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TS2012FC

Filter-free flip-chip stereo 2x2.5 W class D audio power amplifer

STMicroelectronics 

Application information

Figure 38. Shutdown phase

STBY

Level

HI

STBY

TS2012FC

LO

Gain

Mute

Preset gain

G = 24dB

G = 18dB

G = 12dB

G = 6dB

STBY

Gain decreasing

Time

tSTBY

Mute

Time

4.7

Consumption in shutdown mode

Between the shutdown pin and GND there is an internal 300 kΩ (+-/20%) resistor. This

resistor forces the TS2012 to be in shutdown when the shutdown input is left floating.

However, this resistor also introduces additional shutdown power consumption if the

shutdown pin voltage is not at 0 V.

With a 0.4 V shutdown voltage pin for example, you must add 0.4 V/300 kΩ=1.3 µA in typical

(0.4 V/240 kΩ=1.66 µA in maximum) for each shutdown pin to the standby current specified

in Table 5 to Table 7. Of course, this current will be provided by the external control device

for standby pins.

4.8

Single-ended input configuration

It is possible to use the TS2012 in a single-ended input configuration. However, input

coupling capacitors are mandatory in this configuration. The schematic diagram in Figure 39

shows a typical single-ended input application.

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