参数资料
型号: LTC1559CGN-3.3#PBF
厂商: Linear Technology
文件页数: 20/20页
文件大小: 0K
描述: IC BACKUP BATT CNTRLR3.3V 16SSOP
标准包装: 100
功能: 备份管理
电池化学: 镍镉
电源电压: 2.9 V ~ 3.5 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-SSOP
包装: 管件
LTC1559-3.3/LTC1559-5
TYPICAL APPLICATIO N
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
BATTERY
1.2V
BACKUP
R14
14k
NiCd
RESET
PUSH-BUTTON
+
C11
1 μ F
6.3V
3
2
1 8
SW V BAK
V CC
CTL
LTC1559-3.3
GND RESET
7
5
+
C12
1 μ F
R15
100k
RESET
4
PS
BACKUP
6
BACKUP
MAIN
BATTERY
4.5 TO 28V
+
C IN
22 μ F
35V
× 2
9
13
V IN
EXTV CC
16
TG
SW
14
Q1
N-CHANNEL
Si4412DY
C2
0.1 μ F
D1
0.1 μ F
0.033 ?
C C
330pF
4
6
3
2
SFB BOOST
LTC1435
V OSENSE INTV CC
I TH SENSE +
RUN/SS SENSE –
15
12
8
7
C4
CMDSH-3
C5
1000pF
L1*
10 μ H
Q11
P-CHANNEL R SENSE **
Si9424DY
+
C OUT
100 μ F
10V
× 2
V OUT
3.3V
C C2
51pF
C SS
0.1 μ F
1
C OSC
SGND
5
BG
PGND
10
11
+
C3
4.7 μ F
16V
Q2
N-CH
Si4412DY
D2
MBRS140T3
C6
100pF
R1
35.7k
1%
R C
10k
C OSC
68pF
R5
20k
1%
*SUMIDA CDRH125-10
**IRC LR2010-01-R033-F
? SUMIDA CD54-220
1559 TA04
C1
100pF
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
RELATED PARTS
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.
PART NUMBER
LTC690/LTC691
LTC694/LTC695
LTC699
LTC1232
LTC1235
LTC1149
DESCRIPTION
Microprocessor Supervisory Circuits
Microprocessor Supervisory Circuits
Microprocessor Supervisory Circuits
Microprocessor Supervisory Circuits
High Efficiency Synchronous Step-Down
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
Switching Regulator
LTC1435 High Efficiency, Low Noise Synchronous Ultrahigh Efficiency, Burst Mode Operation
Step-Down Switching Regulator
LTC1479 PowerPath TM Controller for Dual Complete Power Management Controller for Battery
Battery Systems Notebook Computers and Other Portable Equipment
LTC1558 Battery Backup Controller with Similar to LTC1559 Except That It Backs up the Main System Regulator’s
Programmable Output Input, Allowing Backup of Multiple Output Voltages
PowerPath and Burst Mode are trademarks of Linear Technology Corporation.
20
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX: (408) 434-0507 q www.linear-tech.com
1559f LT/TP 1098 4K ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 1998
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