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| 型号： | SC804AMLTRT |
| 厂商： | Semtech Corporation |
| 英文描述： | Fully Integrated 4.4V Lithium-Ion Battery Charger System with Timer |
| 中文描述： | 完全集成的4.4V锂离子电池充电器系统的计时器 |
| 文件页数： | 6/21页 |
| 文件大小： | 550K |
| 代理商： | SC804AMLTRT |
14
2005 Semtech Corp.
www.semtech.com
SC804A
PRELIMINARY
POWER MANAGEMENT
DRAFT
Charge Mode Timing Diagram
VCC
VOUT
IOUT
CPB
CHRGB
TIMER
FLTB
NTC
UVLO
VTPreQ
Pre-Charge
Soft Start
Fast Charge
Termination
Current
Re-Charge
Threshold
CC Mode
CV Mode
On
Off
Fault
Hold
Figure 5 - Charge Mode Timing
The OVPB signal is an active-low output that signals when
the input voltage exceeds the OVP threshold. When the
voltage on VCC is less than the OVP threshold voltage
this output is high impedance.
The FLTB output is activated when the device experiences
a fault condition. This output can be used to notify the
system controller of a fault condition when connected to
an interrupt input, or it can be used like CPB and CHRGB
to drive an indicator LED. There are ve fault modes
signaled by FLTB: input over-voltage, input under-voltage,
NTC temperature out of range, max die temperature (OT),
and pre-charge timeout. When any of these conditions
occurs the FLTB output goes low; otherwise it remains
high impedance.
Capacitor Selection
Low cost, low ESR ceramic capacitors such as the X5R and
X7R dielectric material types are recommended for use with
the SC804A. The output capacitance range is 1μF to 4.7μF.
The input capacitor is typically between 0.1μF to 2.2μF, but
larger values will not degrade performance
相关PDF资料 |
PDF描述 |
|---|---|
| SC804A | Fully Integrated 4.4V Lithium-Ion Battery Charger System with Timer |
| SC804EVB | Fully Integrated Lithium-Ion Battery Charger System with Timer |
| SC804IMLTRT | Fully Integrated Lithium-Ion Battery Charger System with Timer |
| SC804 | Fully Integrated Lithium-Ion Battery Charger System with Timer |
| SC805EVB | Miniature Integrated High Current Lithium-Ion Battery Charger |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SC804EVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Fully Integrated 4.4V Lithium-Ion Battery Charger System with Timer |
| SC804IML.TRT | 功能描述:IC LI-ION BATTERY CHRGR 16MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:1 系列:- 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:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
| SC804IMLTRT | 制造商:Semtech Corporation 功能描述:Battery Charger Li-Ion 1500mA 4.2V 16-Pin MLPQ EP T/R |
| SC805 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Miniature Integrated High Current Lithium-Ion Battery Charger |
| SC805A | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Miniature Integrated High Current Lithium-Ion Battery Charger |
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