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參數(shù)資料
型號： TPS65810RTQ
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 9-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
封裝： 8 X 8 MM, ROHS COMPLIANT, PLASTIC, QFN-56
文件頁數(shù)： 79/99頁
文件大小： 2128K
代理商： TPS65810RTQ
www.ti.com
RGB Driver
GREEN
I
LEDB
RED
BLUE
FLASH
CONTROL
LED
CURRENT
SETTINGS
RGB
DUTY
CYCLE
CONTROL
LED
CONTROL
LOGIC
OUT
R
RED
R
GRN
R
BLUE
I
LEDR
I
LEDG
SLVS658B – MARCH 2006 – REVISED FEBRUARY 2007
The TPS65810 has a dedicated driver for an RGB external LED. Three outputs are available (pins RED,
GREEN, BLUE), with common settings for operation mode (flash on/off, flash period, flash on time), LED current
and phase delay between outputs. The TPS65810 RGB driver continually flashes the external LEDs connected
to the RED, GREEN and BLUE pins using the flash operation parameters defined in register RGB_FLASH.
The currents for the external LEDs can be programmed via I2C, and external resistors are not required to limit
the LED current. However, they can be added to set the LED current if the available I2C values are not
compatible with the current application, as shown in the circuit below:
Figure 56. Limiting the External LED Current
The flashing-mode parameters defined in register RGB_FLASH enable setting the flashing period from 1 to 8
seconds in 0.5-sec steps, or to continuous operation. Flashing operation is enabled by setting the FLASH_EN bit
in register RGB_FLASH to HI. This bit must be set HI to enable the RGB current-sink channels.
Each driver has an individual duty cycle control. The duty cycle modulation method used is similar to the
PWM_LED duty cycle control, with high frequency pulses being generated when the driver (RED, GREEN, or
BLUE pins) is ON. The repetition period for the RGB drivers has a total of 32 pulses, enabling a 3.125%
resolution when programming the individual RED, GREEN and BLUE drivers duty cycles. The duty cycles for
each driver can be set individually using control bits on registers RGB_RED, RGB_GREEN and RGB_BLUE.
The RGB drivers can be programmed to sink 4, 8, or 12 mA, with no external current limiting resistor.
80
Copyright 2006–2007, Texas Instruments Incorporated
Product Folder Link(s): TPS65810 TPS65811
相關(guān)PDF資料
PDF描述
TPS65810RTQT 9-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
TPS65820RSHTG4 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
TPS65910RSLT POWER SUPPLY SUPPORT CKT, PQCC48
TPS65920A2ZCHR SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65920A2ZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS65810RTQR 功能描述:電池管理 Int Sgl-Cell Lit-Ion Batt & Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65810RTQRG4 功能描述:電池管理 Int Sgl-Cell Lit-Ion Batt & Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65810RTQT 功能描述:電池管理 Int Sgl-Cell Lit-Ion Batt & Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65810RTQTG4 功能描述:電池管理 Int Sgl-Cell Lit-Ion Batt & Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65811RTQR 功能描述:電池管理 Integr S-C Li-Ion RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
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