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): 20/20頁
文件大小: 344K
代理商: LTC1559CGN-3.3
20
LTC1559-3.3/LTC1559-5
LINEAR TECHNOLOGY CORPORATION 1998
LTC1559-3.3 Backup System with an LTC1435 Main System Regulator
(LTC1435 Output Sense at the Source of Q11, LTC1559’s PS Pin Is Grounded)
L11
22
μ
H
1
+
1559f LT/TP 1098 4K PRINTED IN USA
PART NUMBER
LTC690/LTC691
LTC694/LTC695
LTC699
LTC1232
LTC1235
LTC1149
DESCRIPTION
Microprocessor Supervisory Circuits
COMMENTS
Microprocessor Power Supply Monitor and Backup with Power Fail
Comparator
Microprocessor Power Supply Monitor and Backup
Include Push-Button Reset
Include Push-Button Reset and Power Fail Comparator
V
IN
up to 48V, Burst Mode
TM
Operation
Microprocessor Supervisory Circuits
Microprocessor Supervisory Circuits
Microprocessor Supervisory Circuits
High Efficiency Synchronous Step-Down
Switching Regulator
High Efficiency, Low Noise Synchronous
Step-Down Switching Regulator
PowerPath
TM
Controller for Dual
Battery Systems
Battery Backup Controller with
Programmable Output
PowerPath and Burst Mode are trademarks of Linear Technology Corporation.
LTC1435
Ultrahigh Efficiency, Burst Mode Operation
LTC1479
Complete Power Management Controller for Battery
Notebook Computers and Other Portable Equipment
Similar to LTC1559 Except That It Backs up the Main System Regulator’s
Input, Allowing Backup of Multiple Output Voltages
LTC1558
RELATED PARTS
Description
With its SENSE pin at the source of Q11, the LTC1435 can
raise V
OUT
above V
CC
(rated voltage) – 5.5% once the main
TYPICAL APPLICATIO
N
U
+
BG
SENSE
SENSE
+
INTV
CC
BOOST
SW
C
OSC
SGND
PGND
RUN/SS
I
TH
V
OSENSE
V
IN
LTC1435
TG
C4
0.1
μ
F
R
**
0.033
L1*
10
μ
H
*SUMIDA CDRH125-10
**IRC LR2010-01-R033-F
SUMIDA CD54-220
C3
4.7
μ
F
16V
D1
CMDSH-3
1559 TA04
D2
MBRS140T3
R5
20k
1%
R1
35.7k
1%
C5
1000pF
C6
100pF
Q2
N-CH
Si4412DY
Q1
N-CHANNEL
Si4412DY
SFB
EXTV
CC
11
7
8
12
15
14
13
C
IN
22
μ
F
35V
×
2
16
5
10
1
2
3
6
4
9
C
68pF
R
C
10k
C
SS
0.1
μ
F
C
C
330pF
C1
100pF
C
C2
51pF
+
C2
0.1
μ
F
V
3.3V
CTL
LTC1559-3.3
GND
C11
1
μ
F
6.3V
BACKUP
BATTERY
1.2V
NiCd
MAIN
BATTERY
4.5 TO 28V
Q11
P-CHANNEL
Si9424DY
R14
14k
SW
PS
7
8
V
BAK
V
CC
5
6
3
RESET
PUSH-BUTTON
2
4
RESET
BACKUP
R15
100k
C12
1
μ
F
RESET
BACKUP
+
C
OUT
100
μ
F
10V
×
2
+
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
G
FAX: (408) 434-0507
G
www.linear-tech.com
battery is restored. Thus, the LTC1559 does not use the PS
pin to sense the LTC1435’s output during backup mode.
The PS pin is grounded in this case. Please refer to the
Applications Information section for more details.
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