參數(shù)資料
型號(hào): TPS65930BZCHR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數(shù): 96/115頁
文件大小: 1232K
代理商: TPS65930BZCHR
LEDSYNC
LEDGND
LEDB
BATT
Device
*16...
BATT
120
W
160
W
037-045
SWCS037G
– MAY 2008 – REVISED APRIL 2011
9
LED Drivers
9.1
General Description
Two arrays of parallel LEDs are driven (dedicated for the phone light). The parallel LEDs are supplied by
VBAT, and the external resistor value is given for each LED. The TPS65920/TPS65930 device supports
two open-drain LED drivers for the keypad backlight, having drain connections tolerant of the main battery
voltage.
Figure 9-1 is the LED driver block diagram. Table 9-1 lists the electrical characteristics of the LED driver.
Figure 9-1. LED Driver Block Diagram
NOTE
For the component values, see Table 14-1.
Table 9-1. LED Driver Electrical Characteristics
Parameter
Conditions
Min
Typ
Max
Unit
IO = 160 mA
3
4
SW On resistance
IO = 60 mA
10
12
Copyright
2008–2011, Texas Instruments Incorporated
LED Drivers
81
focus.ti.com: TPS65930/TPS65920
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