DS963F5

3

CS35L32

The battery voltage, speaker voltage, and speaker current signals are monitored, digitized using

 converters, and

An integrated dual LED driver operates up to two LEDs in Flash Mode or Movie Mode. A flash event is triggered by an

external signal. A flash-inhibit event is triggered by an external signal, and causes a reduction in flash current. A timer is

Total power consumption when powering LEDs in Flash Mode or Movie Mode, and powering audio simultaneously, is

managed by the user’s choices in programming the current limit and in power budgeting. The primary goal is to manage

audio and LED loads so the boost converter is not current limited and so the CS35L32 does not shut down due to

overheating.

A latched shutdown of the audio amplifier occurs in the event of an output short pin to ground, pin to supply, or pin to pin.

A latched shutdown of the CS35L32 also occurs on overtemperature. An LED driver shutdown occurs in the event of a

shorted or open LED. The CS35L32 shuts down in the event of a battery (VP) undervoltage and autorecovers when the

battery voltage recovers. The CS35L32 shuts down in the event of a stopped MCLK and autorecovers when MCLK

recovers.

The CS35L32 responds to detection of a low battery in the presence of a flash event by reducing flash current and

autorecovers when the battery voltage recovers.

The CS35L32 is reset by asserting RESET. CS35L32 power up and power down are managed through the RESET pin.

The CS35L32 is available in a 30-ball WLCSP package in the temperature range –10 to +70°C.