ZHCSI09S June 2010 – August 2018 TPS65911
The TPS65911 device has two LED ON/OFF signal generators, LED1 and LED2. LED1 and LED2 have independently controllable periods from 125 ms to 8 s and ON time from 62.5 to 500 ms. Within the period, one or two ON pulses can be generated (control bit LED1(2)_SEQ). The user must take care to program period and ON time correctly, because no limitation on selected values is imposed. LED1 and LED2 signals can be routed to GPIO1 and GPO3 open-drain outputs, respectively. These GPIOs have a current sink capability of 10 mA.
The PWM generator frequency and duty cycle are set by the PWM_FREQ and PWM_DUTY_CYCLE bits, respectively. The PWM generator signal can be connected to the GPIO3 or GPIO8 output. The PWM generator uses the 3-MHz clock, which is not available in off mode. To enable the PWM in sleep mode, the I2CHS_KEEPON bit must be set to 1.