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參數(shù)資料
| 型號(hào)： | MIC79110-4.2BML |
| 廠商： | MICREL INC |
| 元件分類： | 電源管理 |
| 英文描述： | Simple 1.2A Linear Li-Ion Battery Charger |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO10 |
| 封裝： | 3 X 3 MM, MLF-10 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 156K |
| 代理商： | MIC79110-4.2BML |
MIC79110
Micrel
M9999-072004
10
July 2004
Simple Charger - External Trigger to Reset Charge
Cycle reset
200
2k
SD
VIN
RSET
VSENSE
VBAT
VIN
GND
REOC
DEOC
ACHG
1M
C
DELAY
0.1
μ
F
Reset charge cycle.
The V
IN
voltage steps up to a voltage greater than V
BAT
.
When Vin is below Vbat, the Ibat current is near zero and the
reverse shutoff circuit is turning the charge to the battery off.
The I
BAT
slowly increases as V
IN
rises above V
BAT
. D
EOC
is
pulled low when the Ibat current is above the Ieoc current set
by R
EOC
. When the D
EOC
is low, the shutdown pin is also
forced low and helps discharge C
SD
. When the V
BAT
reaches
the set voltage, the Ibat begins to slowly drop. When the Ibat
is less than the I
EOC
threshold, the D
EOC
output goes high
impedance, indicating end-of-charge. When an external sig-
nal is applied to the gate, the external N
CH
pulls the SD and
DEOC pins to ground. This restarts the charging process.
External Trigger to Reset Charge Cycle Reset
1 - V
IN
steps up to a voltage greater than V
BAT
.
2 - SD held low by C
SD
until active high D
EOC
pulls
shutdown low.
3 - Deoc releases SD, resistor pull-up from SD pin'vo
V
IN
pulls V
SD
to V
IN
.
4 - An external signal applied to the gate of the
external N
CH
pulls SD pin-to-ground.
5 - Ibattery is near zero (2 to 4
μ
A) because V
IN
is
below V
BAT
and the reverse shutoff circuit is turn-
ing the charge to the battery off.
6 - I
BAT
is decreased as V
BAT
approaches V
BAT
set
voltage. I
BAT
decreases below the D
EOC
threshold
and D
EOC
is released high allowing V
SD
to go high
7 - External N
CH
turns part on, after a small delay I
BAT
turns on.
8 - Active high DEOC pin goes high because of
reverse shutoff. D
EOC
remains high until I
BAT
ex-
ceeds D
EOC
threshold, then goes low.
9 - I
BAT
decreases below (see #5) D
EOC
threshold.
10 - Active low D
EOC
is high because V
IN
is below
V
BAT
and reverse shutoff holds D
EOC
comparator
off. As V
IN
increases above V
BAT
, the reverse
voltage shutoff turns off, D
EOC
comparator be-
comes active. While I
BAT
is below D
EOC
threshold
D
EOC
active low goes low, when I
BAT
exceeds
D
EOC
threshold I
BAT
goes high.
11 - Legitimate Activation of active low D
EOC
until SD
shuts down part and D
EOC
AL (active low) goes
high.
Vin
VSD
Vbat set voltage
Vbat
SD threshold
2
2
1
Vgate
4
5
6
3
Ibattery
7
8
Active high DEOC pin
9
10
Active low DEOC pin
9
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC79110BML | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Simple 1.2A Linear Li-Ion Battery Charger |
| MIC79110BML TR | 功能描述:IC CHARGER BATT LI-ON ADJ 10MLF RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| MIC79110YML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC79110YML TR | 功能描述:電池管理 1.2A Li-Ion Linear Battery Charger(Lead Free) RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MIC79110YML-TR | 功能描述:IC CHARGER BATT LI-ON ADJ 10MLF 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 電池化學(xué):鋰離子 電池?cái)?shù):- Current Charging:- 可編程特性:- 故障保護(hù):過流，超溫，反向電流 充電電流 - 最大值:1.2A Battery Pack Voltage:- 電壓 -?供電（最高）:16V 接口:- 工作溫度:-40°C ~ 125°C （TJ） 封裝/外殼:10-VFDFN 裸露焊盤，10-MLF? 供應(yīng)商器件封裝:10-MLF?（3x3） 標(biāo)準(zhǔn)包裝:1 |
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