参数资料
型号: MAX1679EUA+
厂商: Maxim Integrated Products
文件页数: 1/12页
文件大小: 0K
描述: IC BATT CHRGR 1CELL LITH 8-UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
功能: 充电管理
电池化学: 锂离子(Li-Ion)
电源电压: 5 V ~ 22 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-uMAX
包装: 管件
19-1545; Rev 0; 9/99
ATION
EVALU
AVAILA
KIT
BLE
Single-Cell Li+ Battery Charger
for Current-Limited Supply
General Description
The MAX1679 battery charger for a single lithium-ion (Li+)
cell comes in a space-saving 8-pin μMAX package. This
simple device, in conjunction with a current-limited wall
cube and a PMOS transistor, allows safe and fast charg-
ing of a single Li+ cell.
The MAX1679 initiates charging in one of three ways:
battery insertion, charger power-up, or external manip-
ulation of the THERM pin. Charging terminates when
the average charging current falls to approximately 1%
of the fast-charge current, or when the on-chip counter
times out.
Key safety features include continuous voltage and
temperature monitoring, a programmable charger time-
out, and a 5mA precharge current mode to charge
near-dead cells. Automatic detection of input power
removal shuts down the device, minimizing current
drain from the battery. An overall system accuracy of
0.75% ensures that the cell capacity is fully utilized
without cycle life degradation.
The MAX1679 evaluation kit (MAX1679EVKIT) is avail-
able to help reduce design time.
Features
o Simple Stand-Alone Application Circuit
o Lowest Power Dissipation
o 8-Pin μMAX Package Saves Space
o No Inductor Required
o 0.75% Overall System Accuracy
o Continuous Voltage and Temperature Protection
o Safely Precharges Near-Dead Cells
o Programmable Safety Timeout
o Top-Off Charging to Achieve Full Battery Capacity
o Automatic Power-Down when Power Source is
Removed
Ordering Information
Applications
Single-Cell Li+ Portable Applications
Self-Charging Battery Packs
PDAs
PART
MAX1679EUA
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
8 μMAX
Cell Phones
Cradle Chargers
CURRENT-
LIMITED
Typical Operating Circuit
PFET
Pin Configuration
VOLTAGE
SOURCE
LED
IN
GATE
TOP VIEW
CHG
BATT
BATTERY
IN
1
8
BATT
TIMER
MAX1679
GATE
CHG
2
3
MAX1679
7
6
THERM
GND
RANGE
SELECT
TSEL
THERM
GND
ADJ
TSEL
4
μ MAX
5
ADJ
THERMISTOR
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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相关代理商/技术参数
参数描述
MAX1679EUA+ 功能描述:电池管理 Battery Charger Current-Limited Sply RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MAX1679EUA+T 功能描述:电池管理 Battery Charger Current-Limited Sply RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MAX1679EUA-T 功能描述:电池管理 Battery Charger Current-Limited Sply RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MAX167ACNG 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX167ACNG+ 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32