EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC4100_15

Description
Smart Battery Charger Controller
File Size319KB,30 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet View All

LTC4100_15 Overview

Smart Battery Charger Controller

LTC4100
Smart Battery
Charger Controller
FeaTures
n
n
DescripTion
The
LTC
®
4100
Smart Battery Charger is a single chip
charging solution that dramatically simplifies construction
of an SBS compliant system. The LTC4100 implements
a Level 2 charger function whereby the charger can be
programmed by the battery or by the host. A SafetySignal
on the battery being charged is monitored for temperature,
connectivity and battery type information. The SMBus
interface remains alive when the AC power adapter is
removed and responds to all SMBus activity directed to
it, including SafetySignal status (via the ChargerStatus
command). The charger also provides an interrupt to the
host whenever a status change is detected (e.g., battery
removal, AC adapter connection).
Charging current and voltage are restricted to chemistry-
specific limits for improved system safety and reliability.
Limits are programmable by two external resistors. Ad-
ditionally, the maximum average current from the AC
adapter is programmable to avoid overloading the adapter
when simultaneously supplying load current and charging
current. When supplying system load current, charg-
ing current is automatically reduced to prevent adapter
overload.
n
n
n
n
n
n
n
n
n
n
n
n
n
Single Chip Smart Battery Charger Controller
100% Compliant (Rev. 1.1) SMBus Support Allows
for Operation with or without Host
SMBus Accelerator Improves SMBus Timing
Wide Output Voltage Range: 3.5V to 26V
Hardware Interrupt and SMBAlert Response
Eliminate Interrupt Polling
High Efficiency Synchronous Buck Charger
0.5V Dropout Voltage; Maximum Duty Cycle > 98%
AC Adapter Current Limit Maximizes Charge Rate
±0.8% Voltage Accuracy; ±4% Current Accuracy
Up to 4A Charging Current Capability
10-Bit DAC for Charge Current Programming
11-Bit DAC for Charger Voltage Programming
User-Selectable Overvoltage and Overcurrent Limits
High Noise Immunity SafetySignal Sensor
Available in a 24-Pin SSOP Package
Portable Instruments and Computers
Data Storage Systems and Battery Backup Servers
applicaTions
n
n
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners. Protected by U.S. Patents including 6650174 and 5723970.
Typical applicaTion
DCIN
3V
TO 5.5V
1.21k
13.7k
LTC4100
V
DD
DCDIV
CHGEN
ACP
SMBALERT
SCL
SDA
THB
THA
I
LIM
V
LIM
I
DC
DCIN
INFET
CLP
CLN
TGATE
BGATE
PGND
CSP
BAT
V
SET
I
TH
GND
0.1µF
0.1µF
5k
20µF
10µH
20µF
SMART BATTERY
V
BAT
0.033
< 5.5V
> 5.5V
PART
LTC4101
LTC4100
17
11
CHGEN
ACP
6
10
7
9
8
15
16
13
1.13k
10k
54.9k
14
20
5
4
24
23
1
3
2
21
22
18
19
12
6.04k
0.12µF
SafetySignal
SMBCLK
SMBDAT
0.0015µF
0.1µF
0.01µF
100
SYSTEM LOAD
0.025
0.068µF
SMBALERT#
SMBCLK
SMBDAT
Figure 1. 4A Smart Battery Charger
4100 TA01
4100fc
For more information
www.linear.com/LTC4100
1
TI BQ2060 English translate Chinese the segment datasheet!
bq2060 Specification Features: *. Can accurately measure the charging of nickel-cadmium, nickel-manganese, lithium-ion and lead-acid batteries *. Support SBS V1.1 version *. Support two-line SMBus V1....
zbz0529 Energy Infrastructure?
A classic book on switching power supplies
This book explains in detail the design of forward and flyback switching power supplies, including inductance calculation and core selection, and is very suitable for engineers who are just getting st...
zengquan Power technology
I have a question about battery voltage sampling?
I need to design a battery voltage detection circuit. I only need to detect the current voltage and send the sampled voltage directly to the microcontroller through AD conversion. Do I need to add a v...
hunenghl Analog electronics
My understanding of 3G (transferred)
After communicating with all parties, my understanding is as follows: (1) China's principles in choosing 3G technology: practical, inexpensive, and waiting; (2) China is not deliberately waiting for T...
john_wang RF/Wirelessly
52 MCU interrupt priority problem
The microcontroller model is AT89LS52. The serial port interrupt has the highest priority, that is, the serial port position in the IP register is 1, and the other positions are 0. When the interrupt ...
mcd511786450 Embedded System
Introduction to DDR2 and FPGA-based controller design
Introduction to DDR2 and FPGA-based controller design...
iamxiaozhang FPGA/CPLD

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1255  119  1258  548  467  26  3  12  10  9 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号