LTC1759CG 查看數據表（PDF） - Linear Technology
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LTC1759CG Datasheet PDF : 28 Pages
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LTC1759
TYPICAL APPLICATION
4A SMBus Smart Battery Charger
AC
ADAPTER
INPUT
R1
15.8k
+
C9, 0.1µF
C15
10µF
35V VDD
Al
C14
0.1µF
C11, 1µF
C13, 0.33µF
C12, 0.68µF
RVLIMIT, 33k
RILIMIT, 33k
RSET, 3.83k
R4, 1.5k
R7, 1k
VDD
RWEAK RNR
RUR
475k
10k
1k
LTC1759
7
UV
22
DCIN
16
VDD
21
DCDIV
4
SYNC
8
INFET
5
SDB
12
CHGEN
32
VCC
9
CLP
25
VLIMIT
10
CLN
24
ILIMIT
2
TGATE
18
33
DGND BOOSTC
17
ISET
34
GBIAS
28
PROG
1
BOOST
27
VC
3
SW
11
35
COMP1 BGATE
6 AGND
30
SPIN
20
RNR
29
SENSE
19
THERM
31
BAT1
14 SDA
23
BAT2
15
SCL
13
INTB
26
VSET
36
PGND
Q1
C5, 2.2µF
D2
R2
1k
RCL, 0.033Ω
C2
0.47µF
R3
499Ω
C1
1µF
C4, 0.1µF
C6
0.68µF
D2
SYSTEM
POWER
C16
22µF
Q2
L1
15µH
RSENSE
0.025Ω
Q3
D1
RS1, 200Ω
RS2, 200Ω
R6
68Ω
C8
0.047µF C7
0.015µF
D1: MBRS130LT3
D2: FMMD7000
L1: SUMIDA CDRH127-150
Q1: Si3457DV
Q2, Q3: Si3456DV
+ C3
22µF
SMART
BATTERY
INTB
SCL
SDA
SMBus
TO
HOST
1759 F10
PACKAGE DESCRIPTION
5.20 – 5.38**
(0.205 – 0.212)
Dimensions in inches (millimeters) unless otherwise noted.
G Package
36-Lead Plastic SSOP (0.209)
(LTC DWG # 05-08-1640)
1.73 – 1.99
(0.068 – 0.078)
12.67 – 12.93*
(0.499 – 0.509)
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
0° – 8°
0.13 – 0.22
(0.005 – 0.009)
0.55 – 0.95
(0.022 – 0.037)
NOTE: DIMENSIONS ARE IN MILLIMETERS
0.65
(0.0256)
BSC
0.25 – 0.38
(0.010 – 0.015)
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.152mm (0.006") PER SIDE
**DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.254mm (0.010") PER SIDE
0.05 – 0.21
(0.002 – 0.008)
7.65 – 7.90
(0.301 – 0.311)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
G36 SSOP 1098
RELATED PARTS
PART NUMBER DESCRIPTION
LTC1473
Dual PowerPathTM Switch Driver
LTC1479
PowerPath Controller for Dual Battery Systems
LT1505
High Efficiency Constant-Current/Constant-Voltage Charger
LT1511
Monolithic 3A Constant-Current/Constant-Voltage Charger
LTC1694
SMBus Accelerator in SOT-23 Package
LT1769
Monolithic 2A Constant-Current/Constant-Voltage Charger
PowerPath is a trademark of Linear Technology Corporation.
28 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com
COMMENTS
Switches Between Two Voltages
Switches Two Batteries, AC Adapter and Charger
Up to 97% Efficiency with Input Current Limiting
Input Current Limiting; No External MOSFETs
Improves SMBus Data Integrity
Similar to LT1511 but 2A Rating, 28-Pin SSOP Package
1759f LT/TP 0500 4K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1998
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