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參數(shù)資料
| 型號： | LTC1559CGN-3.3 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Backup Battery Controller with Fixed Output |
| 中文描述： | BATTERY CHARGE CONTROLLER, PDSO16 |
| 封裝： | PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 344K |
| 代理商： | LTC1559CGN-3.3 |
7
LTC1559-3.3/LTC1559-5
SWITCHI
G WAVEFOR
S
U
Cold Power Boot-Up Description
1. System regulator starts to ramp up the output (PS)
once the V
BAT
voltage increases beyond the minimum
input value.
2. V
CC
starts to increase once PS is high enough to turn on
Q
EXT
’s body diode. RESET is asserted when V
CC
is less
than or equal to 1V.
W
3. The LTC1559’s internal bandgap wakes up. Q
EXT
turns
on and V
CC
= PS. The LTC1559’s internal boost con-
verter does not turn on as RESET remains asserted.
4. RESET is asserted for a further 200ms after V
CC
reaches
–5.5% of its rated V
CC
value for the LTC1559-3.3 and
–6% of its rated V
CC
value for the LTC1559-5.
Backup Mode (Main Battery Discharged)—
LTC1559-3.3
INDUCTOR
CURRENT
RESET
BACKUP
V
CC
V
NiCd
LOBAT
1559 SW03
t
r
t
r
–7%
1.2V
–7%
–7%
1V
0.9V
–5.5%
BOOST CONVERTER OUTPUT
t
f
t
r
t
r
(4)
(3)
(2)
(1)
“1”
“1”
Backup Mode Description
1. Trigger into Backup Mode. Main battery fails and V
CC
drops 7% below the rated value. The backup pin is
asserted after a t
r
delay time and the boost converter is
turned on.
2. Backup Mode. The LTC1559’s boost converter charges
and discharges the inductor with 165mA peak current.
If V
CC
doesn’t increase above V
CC
(rated value) – 7%
(due to a heavy load), the boost converter increases
peak charging current to 330mA. If V
CC
rises above
V
CC
(rated value) – 7%, the boost converter stops and
the backup pin remains asserted.
3. Recovery from Backup Mode. While the boost con-
verter is running, the main battery is restored. This
causes the system regulator to increase PS above V
CC
.
When PS > V
CC
or V
CC
> V
CC
(rated value) –5.5%, the
BACKUP pin deasserts and the boost converter finishes
its last cycle.
4. Trigger into UVLO. During backup, the 1.2V NiCd cell is
discharged and its terminal voltage falls. The LOBAT pin
is asserted to give an early warning if the cell voltage
drops below 1V. RESET is asserted when the cell
voltage drops below 0.9V and the LTC1559 enters
UVLO mode.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1559CGN-5 | 功能描述:IC BACKUP BATT CNTRLR 5V 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:Impedance Track™ 功能:燃料，電量檢測計/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.4 V ~ 2.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁面:1020 (CN2011-ZH PDF) 配用:BQ27350EVM-ND - BQ27350EVM 其它名稱:296-21665-2 |
| LTC1559CGN-5#PBF | 功能描述:IC BACKUP BATT CNTRLR 5V 16-SSOP RoHS:是 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)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| LTC1559CGN-5#TRPBF | 功能描述:IC BACKUP BATT CNTRLR 5V 16-SSOP RoHS:是 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)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| LTC1559CS-3.3 | 功能描述:IC BACKUP BATT CNTRLR3.3V 16SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LTC1559CS-3.3#PBF | 功能描述:IC BACKUP BATT CNTRLR3.3V 16SOIC RoHS:是 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)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
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