參數(shù)資料
型號： MAX1926ETC
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Switch-Mode 1-Cell Li+ Chargers
中文描述： 0.1 A BATTERY CHARGE CONTROLLER, 235 kHz SWITCHING FREQ-MAX, QCC12
封裝： 4 X 4 MM, 0.80 MM HEIGHT, QFN-12
文件頁數(shù)： 1/16頁
文件大?。?/td> 443K
代理商： MAX1926ETC
General Description
The MAX1925/MAX1926 single-cell lithium-ion (Li+)
switch-mode battery chargers use an external PMOS
pass element step-down configuration. Charge current
is programmable, and an external capacitor sets the
maximum charge time.
Additional features include automatic input power
detection (
ACON
output), logic-controlled enable, and
temperature monitoring with an external thermistor. The
MAX1925 disables charging for inputs greater than
6.1V, while the MAX1926 charges for inputs between
4.25V and 12V.
The MAX1925/MAX1926 feature two precondition levels
to restore near-dead cells. The devices source 4mA to
a cell that is below 2V while sourcing C/10 to a cell
between 2V and 3V. Full charge current is then applied
above 3V. A
CHG
output drives an LED to indicate
charging (LED on) and fault conditions (LED blinking).
The MAX1925/MAX1926 are available in a 12-pin
4mm
4mm thin QFN package and are specified over
the extended temperature range (-40°C to +85°C). An
evaluation kit is available to speed design.
Applications
Digital Cameras
Self-Charging Battery Packs
PDAs
Cradle Chargers
Features
o
Small (4mm
4mm) Package
o
4.25V to 12V Input Range (MAX1926)
o
Overvoltage Lockout at 6.1V (MAX1925)
o
±0.75% Battery Regulation Voltage
o
Set Charge Current with One Resistor
o
Automatic Input Power Sense
o
LED (or Logic-Out) Charge Status and Fault
Indicator
o
Programmable Safety Timer
o
Autorestart at Cell = 4V
o
Thermistor Monitor Input
M
Switch-Mode 1-Cell Li+ Chargers
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
MAX1925
MAX1926
IN
EN
INP
EXT
PGND
INPUT
4.5V TO 12V
LED
CT
CHG
ON
OFF
ACON
THRM
GND
BATT
CS
1-CELL
Li+
BATTERY
Typical Operating Circuit
19-2556; Rev 1; 10/02
EVALUATION KIT
AVAILABLE
PART
TEMP
RANGE
PIN-
PACKAGE
INPUT
CHARGING
RANGE
MAX1925
ETC
-40
°
C to +85
°
C
12 Thin QFN
4mm
x
4mm
4.5V to 6.1V
MAX1926
ETC
-40
°
C to +85
°
C
12 Thin QFN
4mm
x
4mm
4.25V to 12V
12
IN
11
INP
10
EXT
4
5
CT
6
CS
1
2
EN
3
9
8
7
THRM
PGND
GND
BATT
MAX1925
MAX1926
CHG
ACON
THIN QFN
Pin Configuration
相關(guān)PDF資料
PDF描述
MAX1925ETC Switch-Mode 1-Cell Li+ Chargers
MAX192AMJP Low-Power, 8-Channel, Serial 10-Bit ADC
MAX192AEAP Low-Power, 8-Channel, Serial 10-Bit ADC
MAX192ACAP Fixed-Point Digital Signal Processor 288-FCBGA
MAX192ACPP Fixed-Point Digital Signal Processor 288-FCBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1926ETC+ 功能描述:電池管理 Switch-Mode 1-Cell Li+ Charger RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
MAX1926ETC+T 功能描述:電池管理 Switch-Mode 1-Cell Li+ Charger RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
MAX1926ETC-T 功能描述:電池管理 Switch-Mode 1-Cell Li+ Charger RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
MAX1926EVKIT 功能描述:電池管理 Evaluation Kit for the MAX1925 MAX1926 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
MAX1927REUB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 800mA PWM Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
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