參數(shù)資料
型號: MAX1874
廠商: Maxim Integrated Products, Inc.
英文描述: MAX1874 Evaluation Kit
中文描述: USB/AC適配器雙路輸入、1節(jié)Li+電池充電器,帶OVP與溫度調(diào)節(jié)
文件頁數(shù): 13/16頁
文件大小: 405K
代理商: MAX1874
M
Dual-Input, USB/AC Adapter, 1-Cell
Li+ Charger with OVP and Thermal Regulation
______________________________________________________________________________________
13
MAX1874
USB INPUT
DC INPUT
UP TO 6.0V
C5
4.7
μ
F
10V CERAMIC
C1
4.7
μ
F
6.3V CERAMIC
C4
2.2
μ
F
10V CERAMIC
C3
2.2
μ
F
6.3V CERAMIC
C6
0.1
μ
F
10V CERAMIC
TO REF
DCLV
GND
BATT
NTC
THERMISTOR
10k
AT +25
°
C
PON
REF
THRM
DC
USB
400m
250m
Li+
CELL
USEL
500mA
100mA
EN
DCI
PGND
BYP
REGULATOR
UOK
CHG
DCOK
R5
100k
R6
301k
R4
10k
Figure 2. A Minimal Circuit that Assumes System Load Is Only Connected to the Battery. The circuit has a 6.5V maximum input and
disables charging for inputs over 6.2V.
MAX1874
USB INPUT
0VP UP TO 18V
CHARGING UP TO 6.0V
C5
4.7
μ
F
25V CERAMIC
C1
4.7
μ
F
6.3V CERAMIC
C4
2.2
μ
F
10V CERAMIC
C3
2.2
μ
F
6.3V CERAMIC
C6
0.1
μ
F
10V CERAMIC
TO REF
DCLV
GND
BATT
NTC
THERMISTOR
10k
AT +25
°
C
PON
REF
THRM
DC
USB
400m
250m
Li+
CELL
USEL
500mA
100mA
EN
DCI
PGND
BYP
REGULATOR
UOK
CHG
C2
1
μ
F
10V CERAMIC
DCOK
R4
10k
R2
1k
5%
Q2
FDN302
0.055
, -20V
Figure 3. A circuit with overvoltage protection MOSFET (Q2) on DC input withstands up to 18V from the AC adapter and disables
charging at inputs over 6.2V.
相關PDF資料
PDF描述
MAX1874ETE Dual-Input, USB/AC Adapter, 1-Cell Li+ Charger with OVP and Thermal Regulation
MAX1874EVKIT MAX1874 Evaluation Kit
MAX1875 Dual 180∑ Out-of-Phase PWM Step- Down Controllers with POR
MAX1875-MAX1876 Dual 180∑ Out-of-Phase PWM Step- Down Controllers with POR
MAX1875AEEG Dual 180∑ Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR
相關代理商/技術參數(shù)
參數(shù)描述
MAX1874ETE 功能描述:電池管理 Dual-Input USB/AC Adapter 1-Cell Li+ 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
MAX1874ETE+ 功能描述:電池管理 Dual-Input USB/AC Adapter 1-Cell Li+ 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
MAX1874ETE+T 功能描述:電池管理 Dual-Input USB/AC Adapter 1-Cell Li+ 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
MAX1874ETE-T 功能描述:電池管理 Dual-Input USB/AC Adapter 1-Cell Li+ 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
MAX1874EVKIT 功能描述:電池管理 Evaluation Kit for the MAX1874 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