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TWL2214CAPFB

更新时间： 2024-11-26 20:52:51
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
36页 503K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48, PLASTIC, TQFP-48

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中文翻译

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TWL2214CAPFB 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：QFP
包装说明：TFQFP,针数：48
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.88
其他特性：SYSTEM OVER AND UNDER-VOLTAGE SHUT DOWN可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-PQFP-G48
JESD-609代码：e4长度：7 mm
湿度敏感等级：2信道数量：1
功能数量：1端子数量：48
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：TFQFP
封装形状：SQUARE封装形式：FLATPACK, THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：220认证状态：Not Qualified
座面最大高度：1.2 mm最大供电电压 (Vsup)：4.3 V
最小供电电压 (Vsup)：3.3 V标称供电电压 (Vsup)：3.8 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：NICKEL PALLADIUM GOLD端子形式：GULL WING
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：7 mm
Base Number Matches：1

TWL2214CAPFB 数据手册

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SLVS321A – OCTOBER 2001 – REVISED JANUARY 2002  
D
D
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Programmable Charging Current  
features  
Six Programmable Low-Dropout Linear  
Voltage Regulators  
D
Integrated, Single-Chip Solution for Battery  
Charge Control and Power Supply  
Management  
Over 65-dB Power Supply Rejection Ratio  
(PSRR) From 10 Hz to 10 kHz  
D
D
Linear Charger for Single-Cell Li-Ion or  
Li-Polymer Packs  
System Over- and Under-Voltage Shutdown  
Power On/Off and Reset Control Logic  
Integrated Control over Precharge,  
Constant-Current, and Constant-Voltage  
Charging Phases  
Three Individually Selectable LED Backlight  
Drivers  
D
Programmable Charge Termination by  
Minimum Current and Time  
D
Vibrator and Ringer Drivers  
D
Internal 8-Bit Analog-to-Digital Converter  
With Auxiliary Inputs  
D
Battery Temperature Sensing  
D
Pack Wake-Up and Damaged Cell Detect  
Functions  
2
D
D
I C Control Interface and Three-Wire SPI  
Interface  
D
Safety Charge Timers During Precharge  
and Constant-Current Charging  
48-Terminal Plastic TQFP (PFB) or  
MicroStar Junior BGA (GQE) Package  
description  
The TWL2214CA device is a single-chip battery and power management solution for wireless handsets, pagers,  
personal digital assistants (PDAs), and other battery-powered devices. For battery charging, the device  
incorporates a linear charger for single-cell Li-Ion and lithium polymer battery packs. Prior to charging, the  
TWL2214CA device initiates battery pack wake-up and damaged cell detect functions. For deeply discharged  
batteries, the device performs precharge conditioning by trickle charge to a user-defined current setting. Once  
an acceptable pack voltage is detected, the TWL2214CA device applies a constant-current fast charge at a  
current level that is determined by the combination of an external sense resistor and user-programmable sense  
voltage. When the battery reaches the selected charge regulation voltage, the TWL2214CA device maintains  
regulation until charging is terminated by a minimum current or a timer. During the entire charge cycle, the  
TWL2214CA device monitors temperature by external thermistor and suspends charging if temperature  
exceeds a programmed range. Three programmable safety timers limit the precharge, constant current, and  
total charge times.  
For power management, the TWL2214CA device includes six low-dropout linear voltage regulators. One  
regulator is driven from the device power-on/-off logic and incorporates a microcontroller reset function. Five  
low-noise regulators include individually programmable output voltage and enable-disable. The TWL2214CA  
device can be powered from a battery or from an ac adapter. When an adapter is present, it supplies power to  
the device, allowing the system to function without a battery.  
The TWL2214CA device also includes individually selectable drivers for three separate backlight LEDs, a ringer,  
and a vibrator motor. An internal 8-bit analog-to-digital converter (ADC) is accessible from external terminals.  
2
All TWL2214CA programming and status are accessed by the system microcontroller via the I C/SPI serial  
interface.  
The TWL2214CA device is packaged in the Texas Instruments 48-terminal plastic thin quad flatpack (TQFP)  
(PFB) or the MicroStar Junior BGA (GQE) package.  
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.  
MicroStar Junior BGA is a trademark of Texas Instruments Incorporated.  
Copyright 2002, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...36

中文翻译

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