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TPS60250RTET

更新时间: 2024-11-24 04:27:31
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器功效
页数 文件大小 规格书
24页 528K
描述
HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE

TPS60250RTET 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFN
包装说明:3 X 3 MM, GREEN, PLASTIC, QFN-16针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:1.48Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHED CAPACITOR CONVERTER控制模式:VOLTAGE-MODE
最大输入电压:6 V最小输入电压:3 V
标称输入电压:3.5 VJESD-30 代码:S-PQCC-N16
JESD-609代码:e4长度:3 mm
湿度敏感等级:2功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:0.65 A
最大输出电压:6.5 V最小输出电压:2.7 V
封装主体材料:PLASTIC/EPOXY封装代码:HVQCCN
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:0.8 mm表面贴装:YES
切换器配置:BOOST最大切换频率:875 kHz
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3 mmBase Number Matches:1

TPS60250RTET 数据手册

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TPS60250  
www.ti.com  
SLVS769APRIL 2007  
HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE  
FEATURES  
DESCRIPTION  
3.0-V to 6.0-V Input Voltage Range  
The TPS60250 is  
a
high efficiency, constant  
frequency charge pump DC/DC converter that uses a  
dual mode 1× and 1.5× conversion to maximize  
efficiency over the input voltage range. It drives up to  
five white LEDs for a main display and up to two  
white LEDs for a sub display with regulated constant  
current for uniform intensity. By utilizing adaptive  
1×/1.5× charge pump modes and very low-dropout  
current regulators, the TPS60250 achieves high  
efficiency over the full 1-cell lithium-battery input  
voltage range.  
×1 and ×1.5 Charge Pump  
Fully Programmable Current with I2C  
64 Dimming Steps with 25mA Maximum  
(Sub and Main Display Banks)  
4 Dimming Steps with 80mA Maximum  
(DM5 for Auxiliary Application)  
2% Current Matching for Sub LEDs at Light  
Load Condition (Each 100µA)  
750-kHz Charge Pump Frequency  
Four enable inputs, ENmain, ENsub1, ENsub2, and  
ENaux, available through I2C, are used for simple  
on/off controls for the independent main, sub1, sub2,  
and DM5 displays, respectively. To lower operating  
current when using one sub display LED, the device  
provides completely separate operation in sub  
display LEDs.  
Continuous 230-mA Maximum Output Current  
Auto Switching Between ×1 and ×1.5 Mode for  
Maximum Efficiency  
Built-in Soft Start and Current Limit  
Open Lamp Detection  
16-Pin 3mm x 3mm QFN  
The TPS60250 is available in a 16-pin 3mmx3mm  
thin QFN.  
APPLICATIONS  
Cellular Phones  
PDA, PMP, GPS (Up To 4 Inch LCD Display)  
Multidisplay Handheld Devices  
Main Display  
95  
4 Main LED - 15 mA,  
90  
V
= 3.1 V  
F
85  
80  
75  
DM4 DM3 DM2  
DM1  
GND  
C1-  
Sub Display  
C2+  
C2-  
DS2  
70  
65  
60  
55  
C2 C3  
1mF 1mF  
DS1  
DM5  
C1+  
VIN SCLK  
SDAT  
VOUT  
50  
C4  
4.7mF  
4
4.5  
5
5.5  
I2C Interface  
On/Off, Digital Dimming  
3
3.5  
6
C1  
1mF  
V
- Input Voltage - V  
I
Figure 1. Typical Application for Sub and Main  
Figure 2. 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  
(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.  
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, 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.  

TPS60250RTET 替代型号

型号 品牌 替代类型 描述 数据表
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