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MC34674BEP/R2

更新时间： 2024-11-07 21:10:55
品牌 Logo 应用领域
恩智浦 - NXP 光电二极管
页数 文件大小 规格书
26页 583K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 2 X 3 MM, 0.65 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, UDFN-8

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MC34674BEP/R2 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：DFN包装说明：2 X 3 MM, 0.65 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, UDFN-8
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.68Is Samacsys：N
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-N8长度：3 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：8
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：HVSON
封装等效代码：SOLCC8,.11,20封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：5 V认证状态：Not Qualified
座面最大高度：0.65 mm子类别：Power Management Circuits
最大供电电压 (Vsup)：10 V最小供电电压 (Vsup)：4.3 V
标称供电电压 (Vsup)：5 V表面贴装：YES
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：2 mm
Base Number Matches：1

MC34674BEP/R2 数据手册

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Document Number: MC34674  
Rev. 2.0, 11/2008  
Freescale Semiconductor  
Advance Information  
High Input Voltage Travel  
Charger for Single-cell Li-Ion  
Batteries  
34674  
The MC34674 is a fully integrated single-cell Li-Ion and Li-Polymer  
battery charger optimized for travel charger applications. The few  
external components required include a dual-color LED for charge-  
status indication, a negative temperature coefficient (NTC) thermistor  
circuit for setting the charge temperature window, and two decoupling  
capacitors. The high input voltage, up to 28 V, allows low-cost AC/DC  
converters to be used for further system cost reduction. A typical  
charge cycle of the MC34674 includes trickle, constant-current (CC)  
and constant-voltage (CV) charge modes. The CC-mode current is  
selectable from 50 mA to 1.05 A with 8% accuracy and the constant-  
output voltage in the CV-mode is fixed at 4.2 V with 0.4% accuracy over  
-20°C to 70°C temperature range.  
POWER MANAGEMENT IC  
EP SUFFIX (PB-FREE)  
98ASA10774D  
8-PIN UDFN  
The MC34674 has all the features such as trickle charging for a  
deeply discharged battery, an internal timer for termination to prevent  
charging a failed battery, charger current thermal foldback for thermal  
protection, and smart battery connection verification to prevent  
charging in case there is no battery connected. It also protects the  
system with its input over-voltage protection (OVP) feature. In addition,  
it has a 2.6 V falling power-on-reset (POR) threshold, making it perfect  
to work with current limited power supplies. When the charger is  
disabled, the BAT pin leaks less than 1.0 μA current from the battery.  
All the above functions are fit into a small 8-lead 2X3 UDFN package.  
ORDERING INFORMATION  
Temperature  
Package  
Device  
Range (T )  
A
Refer to Table 1,  
Device Variations  
-40°C to 85°C  
8 UDFN-EP  
Features  
• No external MOSFET, reverse-blocking diode or current-  
sense resistor are required  
• 28 V maximum input voltage rating with 11 V over-voltage  
protection threshold  
• Factory programmable charge current  
• Trickle charge for fully discharged batteries  
• Driving a dual-color LED and smart battery connection  
verification optimized for travel charger applications  
• Interface to NTC thermistor  
• Internal timer and thermal current limit  
• Small 2X3 mm2 thermally enhanced UDFN package  
• Pb-free packaging designated by suffix code EP  
•
±0.4% voltage accuracy over -20°C to 70°C  
34674  
VIN  
VIN  
BAT  
TO BATTERY  
COUT  
CIN  
RPU  
VREF  
TEMP  
RED  
GRN  
EN  
RS  
TO BATTERY NTC  
(THERMISTOR)  
OFF  
ON  
GND  
Figure 1. 34674 Simplified Application Diagram  
This document contains certain information on a new product.  
Specifications and information herein are subject to change without notice.  
© Freescale Semiconductor, Inc., 2007-8. All rights reserved.  
1234567...26

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MC34675AEP/R2 NXP

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 		1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, 2 X 3 MM, 0.65 MM HEIGHT, 0.5 MM PITCH, ROHS
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