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參數(shù)資料
| 型號(hào)： | SC805A |
| 廠商： | Semtech Corporation |
| 英文描述： | Miniature Integrated High Current Lithium-Ion Battery Charger |
| 中文描述： | 微型集成高電流鋰離子電池充電器 |
| 文件頁(yè)數(shù)： | 1/17頁(yè) |
| 文件大小： | 566K |
| 代理商： | SC805A |
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POWER MANAGEMENT
Description Style Name _GreenBarText
Description
www.semtech.com
Miniature Integrated High Current
Lithium-Ion Battery Charger
SC805A
Features
Features
accessories
Battery present detection and output indicator
Operates in charger or LDO-Mode without battery
0.
μ
A battery drain current in shutdown and monitor
modes
Over-current protection in all charging modes
CHRGB output communicates charging and
end-of-charge cycle
Fully integrated charger with FET pass transistor,
Reverse-blocking diode, sense resistor and thermal
protection
High accuracy charge current*
Tiny 3mm x 3mm 0-lead MLPD package
Programmable pre-charge, fast-charge and
termination current
Battery voltage controlled to % accuracy
Built-in timer for protection and complete charging
NTC interface with battery detection
Soft-start to reduce adapter in-rush current
Up to A continuous charge current
Input voltage range from 3V to 6V allows seamless
charging from current limited adapter
*US Patent 6,836,095
The SC805A is a fully integrated, single cell, constant-
current (CC)/constant-voltage (CV) Lithium-Ion battery
charger in a tiny 3x3 mm thermally enhanced lead-free
MLP package. The SC805A can operate as a stand-alone
charger or in conjunction with a Power Management Inte-
grated Circuit (PMIC).
The SC805A has a pre-charge function for trickle charging
deeply discharged batteries. The fast-charge current is
enabled automatically when the battery voltage reaches
the required threshold. When the battery reaches the
constant voltage or CV portion of the charge curve, the
SC805A switches to CV regulation mode. In this mode
the output current decays as the battery charges until the
termination current is reached and the SC805A signals the
charge cycle is complete. The SC805A can be configured
to continue charging for a pre-determined time before
turning off, or to turn off immediately upon termination.
After turning off its output, the SC805A enters monitor
mode. If the battery voltage drops by 00mV from the
CV voltage a new charge cycle will begin. The timer
function also protects against charging faulty batteries by
turning off if the pre-charge time exceeds of the total
programmed charge duration.
The SC805A also provides battery detection, and a battery
NTC thermistor interface to disable charging when the
battery temperature exceeds safe-to-charge limits.
The SC805A can also function as a general purpose current
source or as a current source for charging nickel-cadmium
(NiCd) and nickel-metal-hydride (NiMH) batteries.
C1
1μF
BATTERY
R7
1k
SC805A
1
2
7
8
9
4
6
5
10
3
VCC
VCCIL
EN/NTC
NOBAT
RTIME
IPRGM
GND
ITERM
CHRGB
VOUT
R4
RT1
Thermistor
D2
LED
C1
2.2μF
Charging
Indicator
D3
LED
R5
3.01k
R2
3.01k
R1
3.01k
SC805A Typical Application Circuit
D1
LED
CHARGER VIN
R3
39.2k
Adapter
Present
Indicator
Charge
Complete
Indicator
R6
1k
Applications
Cellular Phones
PDAs
Handheld Meters
Charging Stations
USB Chargers
Digital Cameras
Programmable Current Source
Typical Application Circuit
March 3, 2007
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC805A_08 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Miniature Integrated High Current Lithium-Ion Battery Charger |
| SC805AEVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Miniature Integrated High Current Lithium-Ion Battery Charger |
| SC805AMLTRT | 制造商:Semtech Corporation 功能描述:Current/Constant Voltage Li-Ion/NiCD/NiMH 1000mA 4.2V 10-Pin MLP EP T/R |
| SC805EVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Miniature Integrated High Current Lithium-Ion Battery Charger |
| SC805IMLTRT | 功能描述:IC LI-ION BATT CHARGER 10-MLP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測(cè)計(jì)/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
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