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參數(shù)資料
| 型號(hào)： | LTC1559CGN-5 |
| 廠(chǎng)商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 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(yè)數(shù)： | 1/20頁(yè) |
| 文件大小： | 344K |
| 代理商： | LTC1559CGN-5 |
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1
LTC1559-3.3/LTC1559-5
Backup Battery Controller
with Fixed Output
DESCRIPTIO
N
U
The LTC
1559 is a backup battery controller that provides
all the functions necessary to implement a backup 3.3V or
5V power supply using a single NiCd cell. It includes a 1.2V
to 3.07V/4.63V boost converter, an intelligent 2-stage
battery charger, automatic backup switching and a micro-
processor reset generator. The boost converter uses a
synchronous switching architecture to achieve a typical
efficiency of 70%, ensuring maximum backup lifetime
from a small NiCd cell.
The on-chip NiCd charger uses an internal gas gauge to
minimize fast recharge time and prevent overcharging of
the backup cell, thereby improving system efficiency and
extending the life of the backup cell. The LTC1559 also
provides a user programmable trickle charge current to
compensate for self-discharge losses in the backup cell.
The LTC1559’s automatic backup switching scheme
requires minimum intervention from the host system and
provides feedback to the host to minimize system loading
in the backup state. Its internal V
CC
fault detector and reset
generator eliminate the need for a separate microproces-
sor supervisory chip in most applications.
The LTC1559 is available in an SO-8, 16-pin GN or SO
package.
I
Complete Battery Backup System in an SO-8,
16-Pin GN or SO Package
I
Generates Fixed Backup Voltage (3.07V/4.63V) from
a Single 1.2V NiCd Button Cell
I
Automatic Main Supply to Backup Switching
I
Minimum 100mW Output Power
I
Automatic Fast Recharge of NiCd Battery
I
Programmable NiCd Trickle Charge Current
I
Smart NiCd Charger Minimizes Recharge Time and
Maximizes System Efficiency After Backup
I
Onboard Power-Up and Push-Button Reset
Generator
I
Performs V
CC
Supervisory Functions
I
Reset Assertion Guaranteed at V
CC
= 1V
I
Short-Circuit Protection
I
Thermal Limiting
FEATURES
APPLICATIO
S
U
I
Notebook Computers
I
Palmtop Computers/PDAs
I
Portable Instruments
I
Battery-Powered Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
N
U
CTL
C1
1
μ
F
**BACKUP
BATTERY
1.2V
NiCd
MAIN
BATTERY
4.5V TO 28V
R1
68k
SW
LTC1559-3.3
*L1
22
μ
H
GND
PS
7
1
8
5
6
3
S1
RESET
1559 TA01
2
4
V
BAK
V
CC
RESET
BACKUP
+
C3
100
μ
F
10V
V
3.3V AT NORMAL MODE
3A
V
33mA (3.07V) AT BACKUP MODE
>33mA (3.3V) AT NORMAL MODE
C2
1
μ
F
SYSTEM
μ
P
R2
100k
Q1
P-MOSFET
Si9424DY
* SUMIDA CD54-22
μ
H
** PANASONIC P-11AAH
CONSULT LTC1435 DATA SHEET FOR
APPLICATION CIRCUIT INFORMATION
LTC1435
SYNCHRONOUS
BUCK
REGULATOR
+
+
Backup Time vs
V
BAK
Output Load Current
V
BAK
LOAD CURRENT (mA)
0
B
800
700
600
500
400
300
200
100
0
15
25
1559 TA02
5
10
20
30
35
V
= 3.07V
NiCd CELL = P-11AAH
(110mA Hrs)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1559CGN-5#PBF | 功能描述:IC BACKUP BATT CNTRLR 5V 16-SSOP RoHS:是 類(lèi)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(lèi)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(chēng):MCP73831T-2ACI/OTCT |
| LTC1559CGN-5#TRPBF | 功能描述:IC BACKUP BATT CNTRLR 5V 16-SSOP RoHS:是 類(lèi)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(lèi)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(chēng):MCP73831T-2ACI/OTCT |
| LTC1559CS-3.3 | 功能描述:IC BACKUP BATT CNTRLR3.3V 16SOIC RoHS:否 類(lèi)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(lèi)型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤(pán) 包裝:管件 |
| LTC1559CS-3.3#PBF | 功能描述:IC BACKUP BATT CNTRLR3.3V 16SOIC RoHS:是 類(lèi)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(lèi)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(chēng):MCP73831T-2ACI/OTCT |
| LTC1559CS-3.3#TRPBF | 功能描述:IC BACKUP BATT CNTRLR3.3V 16SOIC RoHS:是 類(lèi)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(lèi)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(chēng):MCP73831T-2ACI/OTCT |
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