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参数资料
| 型号： | LTC4089EDJC#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC USB POWER MANAGER 22-DFN |
| 标准包装： | 61 |
| 功能： | 电源管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.35 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 22-WFDFN 裸露焊盘 |
| 供应商设备封装： | 22-DFN（6x3）裸露焊盘 |
| 包装： | 管件 |
| 产品目录页面： | 1341 (CN2011-ZH PDF) |
LTC4089/LTC4089-5
USB Power Manager with
High Voltage Switching Charger
FEATURES
DESCRIPTION
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Seamless Transition Between Power Sources: Li-Ion
Battery, USB, and 6V to 36V External Supply
High Ef?ciency 1.2A Charger from 6V to 36V Input
with Adaptive Output Control (LTC4089)
Load Dependent Charging from USB Input
Guarantees Current Compliance
215m Internal Ideal Diode plus Optional External
Ideal Diode Controller Provides Low Loss Power
Path When External Supply/USB Not Present
Constant-Current/Constant-Voltage Operation with
Thermal Feedback to Maximize Charging Rate
without Risk of Overheating
Selectable 100% or 20% Current Limit (e.g., 500mA/
100mA) from USB Input
Preset 4.2V Charge Voltage with 0.8% Accuracy
C/10 Charge Current Detection Output
NTC Thermistor Input for Temperature Quali?ed
Charging
Tiny (6mm × 3mm × 0.75mm) 22-Pin DFN Package
The LTC ? 4089/LTC4089-5 are USB power managers plus
high voltage Li-Ion battery chargers. These devices control
the total current used by the USB peripheral for operation
and battery charging. Battery charge current is automati-
cally reduced such that the sum of the load current and
the charge current does not exceed the programmed input
current limit. The LTC4089/LTC4089-5 also accommodate
high voltage power supplies, such as 12V AC-DC wall
adapters, Firewire, or automotive power.
The LTC4089 provides an adaptive output that tracks the
battery voltage for high ef?ciency charging from the high
voltage input. The LTC4089-5 provides a ?xed 5V output
from the high voltage input to charge single cell Li-Ion
batteries. The charge current is programmable and an
end-of-charge status output ( CHRG ) indicates full charge.
Also featured is programmable total charge time, an NTC
thermistor input used to monitor battery temperature while
charging and automatic recharging of the battery.
L , LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIONS
Protected by U.S. Patents including 6522118, 6700364.
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Portable USB Devices—GPS Receivers, Cameras,
MP3 Players, PDAs
TYPICAL APPLICATION
LTC4089 High Voltage
0.1μF
10μH
Battery Charger Ef?ciency
HIGH (6V-36V)
VOLTAGE INPUT
1μF
HVIN
HVEN
BOOST
SW
HVOUT
10μF
90
CC CURRENT = 970mA
85 NO OUTPUT LOAD
FIGURE 10 SCHEMATIC
80 WITH R PROG = 52k
LTC4089
5V (NOM)
IN
HVPR
75
FROM USB
CABLE V BUS
4.7μF
LTC4089
OUT
1k
4.7μF
TO LDOs
R EGS , ETC.
70
65
LTC4089-5
60
TIMER
BAT
55
0.1μF
CLPROG GND PROG
2k 100k
Li-Ion BATTERY
+
VOUT (TYP)
V BAT +0.3V
5V
5V
AVAILABLE INPUT
HV INPUT (LTC4089)
HV INPUT (LTC4089-5)
USB ONLY
50
45
40
2.5
HVIN = 8V
HVIN = 12V
HVIN = 24V
HVIN = 36V
3 3.5 4
BATTERY VOLTAGE (V)
4.5
4089 TA01b
V BAT
BAT ONLY
4089 TAO1
40895fc
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4090 | 制造商:LINER 制造商全称:Linear Technology 功能描述:USB Power Manager with 2A High Voltage Bat-Track Buck Regulator |
| LTC4090-5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual-Input Power Manager |
| LTC4090EDJC#PBF | 功能描述:IC USB POWER MANAGER 22-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC4090EDJC#PBF | 制造商:Linear Technology 功能描述:IC POWER CONTROL/MANAGEMENT CMOS LLCC |
| LTC4090EDJC#TRPBF | 功能描述:IC USB POWER MANAGER 22-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
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