參數(shù)資料
型號： TPS65800RTQTG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
封裝： 8 X 8 MM, GREEN, PLASTIC, QFN-56
文件頁數(shù)： 79/98頁
文件大小： 2077K
代理商： TPS65800RTQTG4
www.ti.com
White LED, PWM Drivers — I2C Registers
SLVS606C – SEPTEMBER 2005 – REVISED FEBRUARY 2007
The I2C registers that control LED AND PWM driver related functions are shown below. The HEX address for
each register is shown by the register name, together with the R or W functionality for the register bits. Shaded
values indicate default initial power-up values. In the equations replace Bn with 1 for HI state, and 0 for LO state.
B7
B6
B5
B4
B3
B2
B1
B0
SM3_SET, ADDRESS=16, ALL BITS R/W
Bit Name
SM3_I7 set
SM3_I6 set
SM3_I5 set
SM3_I4 set
SM3_I3 set
SM3_I2 set
SM3_I1 set
SM3_I0 set
Function
SM3 DUTY CYCLE CONTROL
Value
See Table 11 for SM3 duty cycle settings, default = 0 (OFF)
RGB_FLASH, ADDRESS= 17, ALL BITS R/W
Bit Name
FLASH_EN
FLASH_ON2
FLASH_ON1
FLASH_ON0
FLASH_PER3
FLASH_PER2
FLASH_PER1
FLASH_PER0
Function
FLASH MODE
FLASH MODE ON TIME
FLASH MODE PERIOD
ON/OFF CTRL
When 0
OFF
See Table 12 for RGB ON TIME settings,
See Table 12 for RGB FLASH settings, default = 1
default=0.1
When 1
ON
RGB_RED, ADDRESS=18, ALL BITS R/W
Bit Name
RGB_ISET1
RGB_ISET0
PHASE
PWMR_D4
PWMR_D3
PWMR_D2
PWMR_D1
PWMR_D0
Function
RGB LED CURRENT SETTINGS
PHASE
REG DRIVER DUTY CYCLE CONTROL
CONTROL
When 0
00= 0
10= 8 mA
GREEN out of
See Table 12 for RGB_RED DUTY settings, default = 0
01= 4 mA
11=12 mA
Φ with RED &
BLUE
When 1
BLUE out of
Φ
with RED &
GREEN
RGB_GREEN, ADDRESS=19, ALL BITS R/W
Bit Name
NOT USED
PWMG_D4
PWMG_D3
PWMG_D2
PWMG_D1
PWMG_D0
Function
NOT USED
GREEN DRIVER DUTY CYCLE CONTROL
Value
NOT USED
See Table 12 for RGB_GREEN DUTY settings, default = 0
RGB_BLUE, ADDRESS=1A, ALL BITS R/W
Bit Name
NOT USED
PWMB_D4
PWMB_D3
PWMB_D2
PWMB_D1
PWMB_D0
Function
NOT USED
BLUE DRIVER DUTY CYCLE CONTROL
Value
NOT USED
See Table 12 for RGB_BLUE DUTY settings, default = 0
PWM, ADDRESS=1D, ALL BITS R/W
Bit Name
PWM_EN
PWM1_F2
PWM_F1
PWM_F0
PWM_D3
PWM_D2
PWM_D1
PWM_D0
Function
PWM ON/OFF
PWM DRIVER FREQUENCY SETTINGS
PWM DRIVER DUTY CYCLE SETTINGS
CONTROL
When 0
Disabled
000 = 15.6 kHz
011 = 3 kHz
110 = 1 kHz
See Table 13 for PWM DUTY settings, default = 0.0625
001 = 7.8 kHz
100 = 2 kHz
111 = 500 Hz
When 1
Enabled
010 = 4.5
101 = 1.5 kHz
Default = 15.6
kHz
kHz
LED_PWM, ADDRESS=27, ALL BITS R/W
Bit Name
LPWM_7 set
LPWM_6 set
LPWM_5 set
LPWM_4 set
LPWM_3 set
LPWM_2 set
LPWM_1 set
LPWM_0 set
Function
LED_PWM DRIVER DUTY CYCLE CONTROL
Value
See Table 11 for LED_PWM DUTY settings, default=0 (OFF)
80
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