參數(shù)資料
型號(hào): TPS60250RTE
廠商: Texas Instruments, Inc.
英文描述: HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE
中文描述: 高效電荷泵7,帶有I2C接口個(gè)WLED
文件頁(yè)數(shù): 17/24頁(yè)
文件大小: 419K
代理商: TPS60250RTE
www.ti.com
C1-
C2+
C2-
C1+
DM1
DM5
DS2
DS1
DM3
DM4
DM2
GND
SDAT
SCLK
VIN
C1
1uF
C
2
1
m
F
C3
1
m
F
Main Display
C4
4.
7
m
F
Sub Display
I
2
C Interface
On/Off, Digital Dimming
VOUT
Auxiliary Port for Key Pad
or Flash Light
LAYOUT GUIDELINES
There are several points to consider when laying out a PCB for charge pump based solutions. In general, all
capacitors should be as close as possible to the device. This is especially important when placing the flying
capacitors (C2, C3 in
Figure 20
and
Figure 21
). In cases where DM5 is assigned for torch/flash applications,
with a maximum 80-mA WLED current, this current path must be kept wide to reduce the trace resistance.
TPS60250
SLVS769–APRIL 2007
Figure 21. The Typical Application Circuit for Sub, Main, and Keypad Backlight
Figure 21
shows the typical application circuit for sub, main, and keypad backlight. In this application, DM5 is
assigned as the auxiliary input for the keypad lighting application.
17
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS60250RTER 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
TPS60250RTERG4 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
TPS60250RTET 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
TPS60250RTET 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter IC
TPS60250RTETG4 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N