参数资料
型号: TPS65072TRSLRQ1
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: POWER SUPPLY SUPPORT CKT, PQCC48
封装: 6 X 6 MM, 0.4 MM PITCH, PLASTIC, QFN-48
文件页数: 59/90页
文件大小: 1375K
代理商: TPS65072TRSLRQ1
SLVSAP7 – JANUARY 2011
www.ti.com
WLED_CTRL1. Register Address: 18h
WLED_CTRL1
B7
B6
B5
B4
B3
B2
B1
BO
Enable
Dimming
Bit name and function
ISINK
frequency1
frequency0
Default
0
1
0
Default value loaded by:
UVLO
Read/write
R/W
R
R/W
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
Bit name and function
level
CYCLE_6
CYCLE_5
CYCLE_4
CYCLE_3
CYCLE_2
CYCLE_1
CYCLE_0
Default
0
1
0
Default value loaded by:
UVLO
Read/write
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
62
Copyright 2011, Texas Instruments Incorporated
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