参数资料
型号: DS2711Z+
厂商: Maxim Integrated Products
文件页数: 1/15页
文件大小: 0K
描述: IC NIMH CHARGER 16SOIC
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: 镍金属氢化物
电源电压: 4 V ~ 5.5 V
工作温度: -20°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC
包装: 管件
19-5826; Rev 4/11
DS2711/DS2712
Loose-Cell NiMH Chargers
GENERAL DESCRIPTION
The DS2711 and DS2712 are ideal for in-system or
PIN CONFIGURATION
stand-alone charging of 1 or 2 AA or AAA NiMH
“loose” cells. Temperature, voltage, and charge time
are monitored to provide proper fast-charging control
algorithms for nickel metal hydride (NiMH) batteries.
Battery tests are included to detect defective or
inappropriate cells such as alkaline primary batteries.
The DS2711/DS2712 support series and parallel
topologies, with independent monitoring and control of
each cell. Charging of NiCd chemistry cells is also
supported.
APPLICATIONS
CC1
CC2
LED1
VSS
LED2
CSOUT
VN1
VN0
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VP2
VP1
THM2
THM1
VDD
TMR
CTST
DMSEL
Desktop/Stand-Alone Chargers (AAA/AA)
Digital Still Cameras
Music Players
SO (150 mils)
TSSOP (4.4mm)
PIN DESCRIPTION
Games
Toys
FEATURES
? Charge 1 or 2 NiMH Cells
PIN
1
2
3
4
NAME
CC1
CC2
LED1
V SS
FUNCTION
Cell 1 Charge-Control Output
Cell 2 Charge-Control Output
Cell 1 Status
Ground Reference and Chip-
Supply Return
?
?
?
?
?
?
Detect and Avoid Charging Alkaline Cells
Precharge Deeply Depleted Cells
Fast Charge NiMH with - ? V Termination
Sensitivity of 2mV (typ)
Monitor Voltage, Temperature, and Time for
Safety and Secondary Termination
Regulate Charge Current:
Linear Control (DS2711)
Switch-Mode Control (DS2712)
Drive pMOS or pnp-Type Pass Element or
Switch, or an Optocoupler
5
6
7
8
9
10
11
12
13
14
15
16
LED2
CSOUT
VN1
VN0
DMSEL
CTST
TMR
V DD
THM1
THM2
VP1
VP2
Cell 2 Status, Mode-Select Input
Current-Sense Output
Current-Sense + Input
Current-Sense - Input
Display-Mode Select
Cell Test Threshold Set
Charge Timer Set
Chip-Supply Input (4.0V to 5.5V)
Cell 1 Thermistor Input
Cell 2 Thermistor Input
Cell 1 Positive-Terminal Sense
Input
Cell 2 Positive-Terminal Sense
Input
?
?
Compatible with Popular Optocouplers and
Integrated Primary-Side PWM Controllers
Small 16-Pin SO or TSSOP Packages
1 of 15
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