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參數(shù)資料
| 型號： | MAX1737EEI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Stand-Alone Switch-Mode Lithium-Ion Battery-Charger Controller |
| 中文描述： | BATTERY CHARGE CONTROLLER, 340 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, MO-137AF, QSOP-28 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 234K |
| 代理商： | MAX1737EEI |
General Description
The MAX1737 is a switch-mode lithium-ion (Li+) battery
charger that charges one to four cells. It provides a
regulated charging current and a regulated voltage
with only a ±0.8% total voltage error at the battery ter-
minals. The external N-channel switch and synchronous
rectifier provide high efficiency over a wide input volt-
age range. A built-in safety timer automatically termi-
nates charging once the adjustable time limit has been
reached.
The MAX1737 regulates the voltage set point and charg-
ing current using two loops that work together to transi-
tion smoothly between voltage and current regulation. An
additional control loop monitors the total current drawn
from the input source to prevent overload of the input
supply, allowing the use of a low-cost wall adapter.
The per-cell battery voltage regulation limit is set
between +4.0V and +4.4V and can be set from one to
four by pin strapping. Battery temperature is monitored
by an external thermistor to prevent charging if the bat-
tery temperature is outside the acceptable range.
The MAX1737 is available in a space-saving 28-pin
QSOP package. Use the evaluation kit (MAX1737EVKIT)
to help reduce design time.
Applications
Features
o
Stand-Alone Charger for Up to Four Li+ Cells
o
±0.8% Accurate Battery Regulation Voltage
o
Low Dropout: 98% Duty Cycle
o
Safely Precharges Near-Dead Cells
o
Continuous Voltage and Temperature Monitoring
o
<1μA Shutdown Battery Current
o
Input Voltage Up to +28V
o
Safety Timer Prevents Overcharging
o
Input Current Limiting
o
Space-Saving 28-Pin QSOP
o
300kHz PWM Oscillator Reduces Noise
o
90% Conversion Efficiency
M
Stand-Alone Switch-Mode
Lithium-Ion Battery-Charger Controller
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
GND
DCIN
CSSP
CSSN
LX
BST
VLO
DLO
PGND
CS
THM
BATT
FASTCHG
FULLCHG
FAULT
SHDN
ON
OFF
TIMER2
TIMER1
Li+
BATTERY
1 TO 4
CELLS
R
S
CCI
CCV
CCS
VADJ
ISETIN
VL
REF
ISETOUT
INPUT SUPPLY
CELL
DHI
SYSTEM
LOAD
MAX1737
19-1626; Rev 1; 7/00
PART
MAX1737EEI
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
28 QSOP
EVALUATION KIT
AVAILABLE
Typical Operating Circuit
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DCIN
CSSP
CSSN
DHI
LX
BST
FAULT
VLO
DLO
PGND
CS
SHDN
FULLCHG
FASTCHG
TIMER2
TIMER1
CELL
CCI
CCS
CCV
VADJ
BATT
GND
REF
THM
ISETOUT
ISETIN
VL
QSOP
TOP VIEW
MAX1737
Pin Configuration
Ordering Information
Notebook Computers
Hand-Held Instruments
Li+ Battery Packs
Desktop Cradle Chargers
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1737EEI+ | 功能描述:電池管理 Stand-Alone Switch-M L-Ion Battery Chargr RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1737EEI+ | 制造商:Maxim Integrated Products 功能描述:SEMICONDUCTOR ((NW)) |
| MAX1737EEI+T | 功能描述:電池管理 Stand-Alone Switch-M L-Ion Battery Chargr RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1737EEI-T | 功能描述:電池管理 Stand-Alone Switch-M L-Ion Battery Chargr RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1737EVKIT | 功能描述:電池管理 Evaluation Kit for the MAX1737 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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