I'm using the LED driver PCA9633 (8-pin) and after reboot, with default settings, the output of the LED pins are high, turning the LEDs on at reboot. 1. Is there a good reason why I should want this? 2. Is there a similar chip with default output state low?

Relevant default values:

• SLEEP = 1 (low power mode, oscillator off)
• INVRT = 0 (output logic state not inverted, value to use when no external driver used)
• OUTDRV = 1 (LED outputs are configured with a totem pole structure)
• LEDOUT = 00000000 (LED driver is off)

The 8-pin version doesn't have an OE pin.

The datasheet states: If LEDOUT = 00, INVRT = 0, and OUTDRV = 1, LED state = VDD.

I'm using 12V LEDs, connected as shown at LED3 of the typical application:  

I don't want to turn off the LEDs immediately after startup, the peak current at startup might cause problems. I'd like to avoid using additional hardware inverting the output signal.

I'm using the LED driver PCA9633 (8-pin.) After reboot, with default settings, the output of the LED pins are high, turning the LEDs on at reboot.

1. Is there a good reason why I should want this?
2. Is there a similar chip with default output state low?

Relevant default values:

• SLEEP = 1 (low power mode, oscillator off)
• INVRT = 0 (output logic state not inverted, value to use when no external driver used)
• OUTDRV = 1 (LED outputs are configured with a totem pole structure)
• LEDOUT = 00000000 (LED driver is off)

The 8-pin version doesn't have an OE pin.

The datasheet states:

If LEDOUT = 00, INVRT = 0, and OUTDRV = 1, LED state = VDD.

I'm using 12V LEDs, connected as shown at LED3 of the typical application: 

I don't want to turn off the LEDs immediately after startup, the peak current at startup might cause problems. I'd like to avoid using additional hardware inverting the output signal.

I'm using the LED driver PCA9633 (8-pin) and after reboot, with default settings, the output of the LED pins are high, turning the LEDs on at reboot. 1. Is there a good reason why I should want this? 2. Is there a similar chip with default output state low?

Relevant default values:

• SLEEP = 1 (low power mode, oscillator off)
• INVRT = 0 (output logic state not inverted, value to use when no external driver used)
• OUTDRV = 1 (LED outputs are configured with a totem pole structure)
• LEDOUT = 00000000 (LED driver is off)

The 8-pin version doesn't have an OE pin.

The datasheet states: If LEDOUT = 00, INVRT = 0, and OUTDRV = 1, LED state = VDD.

I don't want to turn off the LEDs immediately after startup, the peak current at startup might cause problems. I'd like to avoid using additional hardware inverting the output signal.

I'm using the LED driver PCA9633 (8-pin) and after reboot, with default settings, the output of the LED pins are high, turning the LEDs on at reboot. 1. Is there a good reason why I should want this? 2. Is there a similar chip with default output state low?

Relevant default values:

• SLEEP = 1 (low power mode, oscillator off)
• INVRT = 0 (output logic state not inverted, value to use when no external driver used)
• OUTDRV = 1 (LED outputs are configured with a totem pole structure)
• LEDOUT = 00000000 (LED driver is off)

The 8-pin version doesn't have an OE pin.

The datasheet states: If LEDOUT = 00, INVRT = 0, and OUTDRV = 1, LED state = VDD.

I'm using 12V LEDs, connected as shown at LED3 of the typical application:

I don't want to turn off the LEDs immediately after startup, the peak current at startup might cause problems. I'd like to avoid using additional hardware inverting the output signal.