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LTC1759CG#PBF

更新时间： 2024-11-19 13:09:43
品牌 Logo 应用领域
凌特 - Linear 电池
页数 文件大小 规格书
28页 365K
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LTC1759CG#PBF 数据手册

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LTC1759  
Smart Battery Charger  
U
DESCRIPTIO  
FEATURES  
The LTC®1759 Smart Battery Charger is a single chip  
charging solution that dramatically simplifies construc-  
tion of an SBS compliant system. The LTC1759 imple-  
ments a Level 2 charger function whereby the charger can  
be programmed by the battery or by the host. A thermistor  
on the battery being charged is monitored for tempera-  
ture,connectivityandbatterytypeinformation.TheSMBus  
interface remains alive when the AC power adapter is  
removed and responds to all SMBus activity directed to it,  
including thermistor status (via the ChargerStatus com-  
mand). The charger also provides an interrupt to the host  
whenever a status change is detected (e.g., battery  
removal, AC adapter connection).  
■
Single Chip Smart Battery Charger Controller  
■
100% Compliant (Rev 1.0) SMBus Support  
Allows for Operation with or without Host  
■
SMBus Accelerator Improves SMBus Timing  
■
Hardware Interrupt and SMBAlert Response  
Eliminate Interrupt Polling  
■
High Efficiency Synchronous Buck Charger  
■
0.5V Dropout Voltage; Maximum Duty Cycle > 99.5%  
■
AC Adapter Current Limit Maximizes Charge Rate*  
■
1% Voltage Accuracy; 5% Current Accuracy  
■
Up to 8A Charging Current Capability  
■
Dual 10-Bit DACs for Charger Voltage and Current  
Programming  
■
User-Selectable Overvoltage and Overcurrent Limits  
Charging current and voltage are restricted to chemistry  
specific limits for improved system safety and reliability.  
Limits are programmable by two external resistors. Addi-  
tionally,themaximumaveragecurrentfromtheACadapter  
is programmable to avoid overloading the adapter when  
simultaneously supplying load current and charging cur-  
rent. When supplying system load current, charging cur-  
rent is automatically reduced to prevent adapter overload.  
■
High Noise Immunity Thermistor Sensor  
■
Small 36-Lead NUarrow (0.209") SSOP Package  
APPLICATIO S  
■
Portable Computers  
■
Portable Instruments  
■
Docking Stations  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
*US Patent Number 5,723,970  
U
TYPICAL APPLICATIO  
15.8k  
1k  
0.033Ω  
AC  
ADAPTER  
INPUT  
+
10µF  
35V  
Al  
0.1µF  
LTC1759  
V
22  
21  
8
7
16  
4
DD  
499Ω  
UV  
V
DCIN  
0.1µF  
DCDIV  
INFET  
0.47µF  
DD  
SYSTEM  
POWER  
SYNC  
SDB  
5
32  
9
1µF  
V
CC  
12  
25  
24  
18  
17  
28  
27  
11  
6
22µF  
CHGEN  
CLP  
CLN  
33k  
33k  
10  
2
V
LIMIT  
0.1µF  
2.2µF  
I
TGATE  
BOOSTC  
GBIAS  
BOOST  
SW  
LIMIT  
33  
34  
1
15µH  
0.025Ω  
DGND  
3.83k  
0.68µF  
I
+
SET  
1µF  
22µF  
PROG  
SMART  
BATTERY  
0.33µF  
0.68µF  
1.5k  
1k  
3
V
C
35  
30  
29  
31  
23  
26  
36  
COMP1  
AGND  
RNR  
BGATE  
SPIN  
200Ω  
20  
19  
14  
15  
13  
SENSE  
BAT1  
200Ω  
THERM  
SDA  
V
DD  
475k  
BAT2  
68Ω  
SCL  
V
SET  
10k  
1k  
0.047µF  
INTB  
PGND  
0.015µF  
SMBus  
INTB  
TO  
SCL  
SDA  
HOST  
1759 F01  
Figure 1. 4A SMBus Smart Battery Charger  
1
1234567...28

中文翻译

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LTC1759CG#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC1759CG#TR Linear

完全替代

 LTC1759 - Smart Battery Charger; Package: SSOP; Pins: 36; Temperature Range: 0°C t
LTC1759CG#TRPBF Linear

完全替代

 LTC1759 - Smart Battery Charger; Package: SSOP; Pins: 36; Temperature Range: 0°C t
LTC1759CG Linear

完全替代

 Smart Battery Charger

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LTC1759CG#TR Linear

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 		LTC1759 - Smart Battery Charger; Package: SSOP; Pins: 36; Temperature Range: 0°C t
LTC1759CG#TRPBF Linear

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 		LTC1759 - Smart Battery Charger; Package: SSOP; Pins: 36; Temperature Range: 0°C t
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 		Dual Smart Battery System Manager Available in 48-Lead TSSOP Package
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 		Dual Smart Battery System Manager
LTC1760CFW#PBF Linear

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 		LTC1760 - Dual Smart Battery System Manager; Package: TSSOP; Pins: 48; Temperature Range:
LTC1767 Linear

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