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参数资料
| 型号： | DS2731E+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/20页 |
| 文件大小： | 0K |
| 描述： | IC MANAGEMENT BACKUP 28-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 功能： | 备份管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 10.8 V ~ 13.2 V |
| 工作温度： | -20°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 28-TSSOP 裸露焊盘 |
| 包装： | 管件 |
| 产品目录页面： | 1436 (CN2011-ZH PDF) |
Cache-Memory Battery-Backup Management IC
V THM
V COLD
V HYS-COLD
V HOT-HYS
V HOT
V ENABLE
V DISABLE
THERMISTOR
FUNCTIONALLY
DISABLED
TIME
CHARGING ENABLED
CHARGING DISABLED
NOTE: THIS GRAPH IS NOT MEANT TO REPRESENT A LOGICAL PROGRESSION OF TEMPERATURE OVER TIME BUT RATHER THE VOLTAGE THRESHOLDS
AT WHICH CHARGING IS DISABLED.
Figure 6. Temperature Operation
Cache-Memory Battery-Backup
Buck-Regulator Supply
(2MHz PWM)
A 2MHz internal synchronous buck regulator is used to
generate the appropriate cache-memory supply volt-
age. With careful inductor selection, high efficiencies
can be achieved with this type of supply (see Figures
7a and 7b). The regulator has a user-selectable voltage
range of 0.9V to 2.5V, and can supply up to 450mA.
There is also a user-selectable LO_BATT threshold with
a range of 2.5V to 3V. If the battery voltage drops
below this threshold, the regulator shuts down and the
IC goes into a low-power state until system power is
restored. The regulator can be disabled by the ENS pin
during normal power conditions. The buck regulator is
designed to supply enough current to power the cache
memory during data retention/refresh mode. The regu-
lator can be enabled during normal system power, but
it cannot supply power to the cache memory during
normal operating conditions.
Note: The buck regulator and the charger should not
run simultaneously.
14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2731E+ | 功能描述:电池管理 Cache-Memory Battery-Backup 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 |
| DS2731E+T&R | 制造商:Maxim Integrated Products 功能描述:CACHEMEM BAT BCKUP MGMT TSSOP28 T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MANAGEMENT BACKUP 28-TSSOP |
| DS2731E+T&R | 功能描述:电池管理 Cache-Memory Battery-Backup 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 |
| DS2731E+TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Cache-Memory Battery-Backup Management IC |
| DS2731EVKIT+ | 制造商:Maxim Integrated Products 功能描述:12V A DC/DC CONVERTER - Boxed Product (Development Kits) |
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