Datasheet

TPS65070, TPS65072, TPS65073
TPS650731, TPS650732, TPS650701, TPS650702, TPS650721
SLVS950G –JULY 2009–REVISED MAY 2013 www.ti.com
WLED_CTRL1. Register Address: 18h
WLED_CTRL1 B7 B6 B5 B4 B3 B2 B1 BO
Enable Dimming Dimming
Bit name and function
ISINK frequency1 frequency0
Default 0 0 0 1 0 0 0 0
Default value loaded by: UVLO UVLO UVLO
Read/write R/W R R/W R/W R R R R
Bit 7 ENABLE ISINK:
0 = both current sinks are turned OFF, the wLED boost converter is disabled
1 = both current sinks are turned on, the wLED boost converter is enabled
Bit 5..4 DIMMING FREQUENCY 0/1:
00 = 100 Hz
01 = 200 Hz
10 = 500 Hz
11 = 1000 Hz
WLED_CTRL2. Register Address: 19h
WLED_CTRL2 B7 B6 B5 B4 B3 B2 B1 BO
Current LED DUTY LED DUTY LED DUTY LED DUTY LED DUTY LED DUTY LED DUTY
Bit name and function
level CYCLE_6 CYCLE_5 CYCLE_4 CYCLE_3 CYCLE_2 CYCLE_1 CYCLE_0
Default 0 0 0 1 1 1 1 0
Default value loaded by: UVLO UVLO UVLO UVLO UVLO UVLO UVLO UVLO
Read/write R/W R/W R/W R/W R/W R/W R/W R/W
Bit 7 CURRENT LEVEL:
0 = current defined with resistor connected from ISET2 to GND
1 = current defined with resistor connected from ISET1 to GND
Bit 6..0 sets the duty cycle for PWM dimming from 1% (0000000) to 100% (1100011).
Values above 1100011 set the duty cycle to 0 %; default is 30% duty cycle
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TPS650721