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参数资料
| 型号： | MAX1757EAI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHRG LI+ 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 46 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 6 V ~ 14 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
EVALUATION KIT AVAILABLE
MAX1757
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 14V Switch
General Description
The MAX1757 is a switch-mode lithium-ion (Li+) battery
charger that charges one to three cells. It provides a
regulated charging current accurate to ±10% and a
regulated voltage with only a ±0.8% total voltage error
at the battery terminals. The internal high-side switch
delivers a programmable current of up to 1.5A to
charge the battery. The built-in safety timer automatical-
ly terminates charging once the adjustable time limit
has been reached.
The MAX1757 regulates the voltage set point and
charging current using two loops that work together to
transition smoothly between voltage and current regula-
tion. An additional control loop monitors the total cur-
rent drawn from the input source (charging + system)
and by automatically reducing battery-charging current
prevents overload of the input supply, allowing the use
of a low-cost wall adapter.
The per-cell battery regulation voltage is set between
4.0V and 4.4V using standard 1% resistors. The num-
Features
? Stand-Alone Charger for Up to 3 Li+ Batteries
? ±0.8% Battery Regulation Voltage Accuracy
? Low-Dropout 98% Duty Cycle
? Safely Precharges Near-Dead Cells
? Continuous Voltage and Temperature Monitoring
? 0.1μA Shutdown Battery Current
? Input Voltage Up to 14V
? Up to 1.5A Programmable Charge Current
? Input Current Limiting
? Space-Saving 28-Pin SSOP
? 300kHz PWM Oscillator Reduces Noise
Ordering Information
ber of cells is set from 1 to 3 by pin strapping. Battery
temperature is monitored by an external thermistor to
prevent charging outside the acceptable temperature
PART
MAX1757EAI
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
28 SSOP
range.
The MAX1757 is available in a space-saving 28-pin
SSOP package. Use the MAX1757EVKIT to help reduce
design time. For a stand-alone charger with a 28V
switch, refer to the MAX1758 data sheet. For a charger
V IN
6V to 14V
Typical Operating Circuit
controller capable of up to 4A charging current, refer to
the MAX1737 data sheet.
________________________Applications
Li+ Battery Packs PDAs
REF
DCIN CSSP
CSSN
HSD
MAX1757 LX
SYSTEM
LOAD
Notebook Computers
Hand-Held Instruments
Desktop Cradle Chargers
ISETOUT
BST
VL
TOP VIEW
Pin Configuration
ISETIN
CELL
PGND
CS
VL 1
ISETTIN 2
ISETOUT 3
THM 4
28 DCIN
27 CSSP
26 CSSN
25 CCV
VADJ
BATT
THM
REF 5
GND 6
MAX1757
24 CCI
23 CCS
CCS
CCI
THERM
Li+ BATTERY
1 TO 3 CELLS
VADJ 7
BATT 8
22 BST
21 CS
HSD 9
HSD 10
CELL 11
TIMER1 12
TIMER2 13
20 LX
19 LX
18 PGND
17 SHDN
16 FULLCHG
ON
CCV
TIMER1
TIMER2
FASTCHG
FULLCHG
FAULT
FAULT 14
15 FASTCHG
OFF
SHDN
GND
SSOP
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-1754; Rev 1; 4/13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1757EAI+ | 功能描述:电池管理 Li+ Battery Charger w/Int 14V Switch 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 |
| MAX1757EAI+T | 功能描述:电池管理 Li+ Battery Charger w/Int 14V Switch 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 |
| MAX1757EAI-T | 功能描述:电池管理 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 |
| MAX1757EVKIT | 功能描述:电池管理 Evaluation Kit for the MAX1757 MAX1758 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 |
| MAX17582GTL+ | 制造商:Maxim Integrated Products 功能描述:1.2MHZ LOW-COST HIGH-PERFORMANCE - Rail/Tube |
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