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| 型号： | TPS60252RTETG4 |
| 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, GREEN, PLASTIC, QFN-16 |
| 文件页数： | 1/25页 |
| 文件大小： | 762K |
| 代理商： | TPS60252RTETG4 |
1
FEATURES
DESCRIPTION
APPLICATIONS
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
95
90
85
80
75
70
65
60
55
50
3
3.5
4
4.5
5
5.5
6
V -InputVoltage-V
I
Efficiency-%
4MainLED-15mA,
V =3.1V
F
www.ti.com............................................................................................................................................................ SLVS769C – APRIL 2007 – REVISED APRIL 2008
HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE
3.0 V to 6.0 V Input Voltage Range
×1 and ×1.5 Charge Pump
The
TPS60250/2
are
high
efficiency,
constant
Fully Programmable Current with I2C
frequency charge pump DC/DC converters that use
–
64 Dimming Steps with 25mA Maximum
dual mode 1
× and 1.5× conversions to maximize
(Sub and Main Display Banks)
efficiency over the input voltage range. The devices
drive up to five white LEDs for the main display and
–
4 Dimming Steps with 80mA Maximum
up to two white LEDs for the sub display with
(DM5 for Auxiliary Application)
regulated constant current for uniform intensity. By
2% Current Matching for Sub LEDs at Light
utilizing adaptive 1
×/1.5× charge pump modes and
Load Condition (Each 100
A)
very low-dropout current regulators, the TPS60250/2
750 kHz Charge Pump Frequency
achieve
high
efficiency
over
the
full
1-cell
lithium-battery input voltage range.
Continuous 230mA Maximum Output Current
Four enable inputs, ENmain, ENsub1, ENsub2, and
Auto Switching Between ×1 and ×1.5 Mode for
ENaux, available through the I2C, are used for simple
Maximum Efficiency
on/off controls for the independent main, sub1, sub2,
Built-in Soft Start and Current Limit
and
DM5
displays,
respectively.
To
lower
the
Open Lamp Detection
operating current when using one sub display LED,
the devices provide completely separate operation for
16-Pin 3mm x 3mm QFN
the sub display LEDs.
TPS60250 (I2C Slave Address: 1110111)
The TPS60250/2 are available in a 16-pin 3mm x
TPS60252 (I2C Slave Address: 1110110)
3mm thin QFN.
Cellular Phones
PDA, PMP, GPS (Up To 4 Inch LCD Display)
Multidisplay Handheld Devices
Figure 2. Typical Application for Sub and Main
Figure 1. Efficiency vs Input Voltage
ORDERING INFORMATION(1)
PART NUMBER
PACKAGE
TA
TPS60250RTE
16-Pin 3 mm
× 3 mm QFN (RTE)
–40
°C to +85°C
TPS60252RTE
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2007–2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS60255 | 制造商:TI 制造商全称:Texas Instruments 功能描述:HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs DRIVER WITH 1 WIRE INTERFACE |
| TPS60255EVM-262 | 功能描述:电源管理IC开发工具 TPS60255EVM-262 EVAL MOD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS60255RTER | 功能描述:LED照明驱动器 7Ch High Eff 175 mA 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 |
| TPS60255RTERG4 | 功能描述:LED照明驱动器 7Ch Hi Eff 175mA 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 |
| TPS60255RTET | 功能描述:LED照明驱动器 7Ch Hi Eff 175mA 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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