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参数资料
| 型号： | MAX1645BEEI |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28 |
| 封装： | QSOP-28 |
| 文件页数： | 1/32页 |
| 文件大小： | 357K |
| 代理商： | MAX1645BEEI |
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General Description
The MAX1645B is a high-efficiency battery charger
capable of charging batteries of any chemistry type. It
uses the Intel System Management Bus (SMBus
) to
control voltage and current-charge outputs.
When charging lithium-ion (Li+) batteries, the MAX1645B
automatically transitions from regulating current to regu-
lating voltage. The MAX1645B can also limit line input
current so as not to exceed a predetermined current
drawn from the DC source. A 175s charge safety timer
prevents “runaway charging” should the MAX1645B stop
receiving charging voltage/current commands.
The MAX1645B employs a next-generation synchro-
nous buck control circuitry that lowers the minimum
input-to-output voltage drop by allowing the duty cycle
to exceed 99%. The MAX1645B can easily charge one
to four series Li+ cells.
Applications
Notebook Computers
Point-of-Sale Terminals
Personal Digital Assistants
Features
o
Input Current Limiting
o
175s Charge Safety Timeout
o
128mA Wake-Up Charge
o
Charges Any Chemistry Battery: Li+, NiCd,
NiMH, Lead Acid, etc.
o
Intel SMBus 2-Wire Serial Interface
o
Compliant with Level 2 Smart Battery Charger
Spec Rev 1.0
o
+8V to +28V Input Voltage Range
o
Up to 18.4V Battery Voltage
o
11-Bit Battery Voltage Setting
o
±0.8% Output Voltage Accuracy with Internal
Reference
o
3A (max) Battery Charge Current
o
6-Bit Charge-Current Setting
o
99.99% (max) Duty Cycle for Low-Dropout
Operation
o
Load/Source Switchover Drivers
o
>97% Efficiency
M
Advanced Chemistry-Independent, Level 2
Battery Charger with Input Current Limiting
________________________________________________________________
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.
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CVS
PDS
CSSP
CSSN
BST
DHI
INT
LX
DLOV
DLO
PGND
CSIP
CSIN
PDL
SDA
SCL
THM
V
DD
DAC
BATT
GND
CCV
CCI
CCS
REF
CLS
LDO
DCIN
QSOP
TOP VIEW
MAX1645B
PART
TEMP RANGE
-40
°
C to +125
°
C
PIN-PACKAGE
28 QSOP
MAX1645BEEI
19-2593; Rev 0; 10/02
Typical Operating Circuit appears at end of data sheet.
SMBus is a trademark of Intel Corp.
Pin Configuration
Ordering Information
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1647 | Chemistry-Independent Battery Chargers |
| MAX1648 | Chemistry-Independent Battery Chargers |
| MAX1647-MAX1648 | Chemistry-Independent Battery Chargers |
| MAX1648ESE | Chemistry-Independent Battery Chargers |
| MAX1647EAP | Chemistry-Independent Battery Chargers |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1645BEEI+ | 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 |
| MAX1645BEEI+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 |
| MAX1645BEEI-T | 功能描述:电池管理 Advanced Chemistry-Independent Level 2 Battery Charger with Input Current Limiting 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 |
| MAX1645BEVKIT | 制造商:Maxim Integrated Products 功能描述:EVALUATION KIT/EVALUATION SYSTEM FOR THE MAX1645B - Bulk |
| MAX1645BEVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX1645B EVAL KIT+ - Boxed Product (Development Kits) |
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