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参数资料
| 型号： | TPS60250RTE |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.65 A SWITCHED CAPACITOR CONVERTER, 750 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封装： | 3 X 3 MM, PLASTIC, QFN-16 |
| 文件页数： | 8/25页 |
| 文件大小： | 762K |
| 代理商： | TPS60250RTE |
APPLICATION CIRCUITS
C1-
C2+
C2-
C1+
DM1
DM5
DS2
DS1
DM3
DM4
DM2
GND
SDAT
SCLK
VIN
C1
4.7mF
C2
1mF
C3
1mF
MainDisplay
C4
4.7mF
SubDisplay
I
2CInterface
On/Off, DigitalDimming
VOUT
hLight +
I
O
V
F
V
in
I
O ) Iop
(1)
SLVS769C – APRIL 2007 – REVISED APRIL 2008............................................................................................................................................................ www.ti.com
Figure 20. The Typical Application Circuit for Sub and Main Display
As shown in Figure 20, typical application circuit for a clam shell phone has 5 main LEDs and 2 sub LEDs.
Recently, the LCD panel makers have developed a new panel that has an improved transparency rate which
makes system efficiency with 100
A LED current a critical load point. To meet system efficiency requirements
with the light load conditions for the new LCD operating panels, the TPS60250/2 have a maximum 55
A
operating current with 100
A output load condition. In this application, the controller always operates in 1× mode
due to the WLED's low forward voltage drop (about 2.6 VF with a 100 A WLED current). Thus, the total
efficiency at the light load condition is determined using Equation 1:
Where:
IO: Output Load (WLED) Current
VF: Forward Voltage Drop of WLED
Vin: Input Voltage
Iop: Operating Current of LED Driver
16
Copyright 2007–2008, Texas Instruments Incorporated
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相关代理商/技术参数 |
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|---|---|
| TPS60250RTER | 功能描述:LED照明驱动器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| TPS60250RTERG4 | 功能描述:LED照明驱动器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| TPS60250RTET | 功能描述:LED照明驱动器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| TPS60250RTET | 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter IC |
| TPS60250RTETG4 | 功能描述:LED照明驱动器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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