參數(shù)資料
型號(hào)： MAX1925
廠商： Maxim Integrated Products, Inc.
元件分類： 數(shù)字信號(hào)處理
英文描述： Fixed-Point Digital Signal Processor 548-FCBGA
中文描述： 開(kāi)關(guān)模式單節(jié)Li+電池充電器
文件頁(yè)數(shù)： 4/16頁(yè)
文件大?。?/td> 443K
代理商： MAX1925
M
Switch-Mode 1-Cell Li+ Chargers
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(V
PGND
= V
GND
= 0, V
INP
= V
IN
= V
CHG
= 5V, V
BATT
= V
CS
= V
EN
= 4V, THRM = 10k
to GND, C
CT
= 100nF,
T
A
= -40
°
C to +85
°
C
,
unless otherwise noted. Typical values are at T
A
= +25
°
C.) (Note 4)
PARAMETER
CONDITIONS
MIN
4.5
4.30
4.0
4.17
3.9
5.8
5.3
125
-1
2
TYP
MAX
12.0
4.78
4.5
4.43
4.4
6.4
5.9
550
+1
UNITS
V
Supply Voltage Range
V
INP
, V
IN
(MAX1925 does not charge above 6.1V)
MAX1925
MAX1926
MAX1925
MAX1926
Rising
Falling
V
INP
, V
IN
rising
ACON
Trip point
V
INP
, V
IN
falling
V
INP, IN Shutdown Threshold
MAX1925
V
EN Input Resistance
EN Leakage Current
EN Logic Input High Threshold
EN Logic Input Low Threshold
MAX1926 internally pulled up to 3V
MAX1925
k
μA
V
V
0.8
50
10
10
8
10
10
8
DONE State, V
BATT
= 4.1V
EN = GND (Note 2)
V
BATT
= V
INP
= V
IN
= 4V, shutdown (Note 1)
EN = GND
V
BATT
= V
INP
= V
IN
= 4V, shutdown
V
BATT
= 4.1V, charging
V
BATT
= 4.3V, done
BATT + CS Input Current
(Total Current into BATT and CS)
μA
mA
μA
IN + INP Total Input Current
mA
VOLTAGE LOOP
Voltage Loop Set Point
4.158
4.242
V
BATT Prequal1 Voltage Threshold
1.9
2.1
V
BATT Prequal2 Voltage Threshold
2.85
3.15
V
Restart Threshold
Charging restarts when BATT falls to this point
3.92
4.08
V
BATT Voltage Fault Threshold
If BATT exceeds this threshold, EXT is high (external
MOSFET is off) and
CHG
blinks
4.275
4.425
V
CURRENT LOOP
CS - BATT Sense Threshold
Prequal1 Charge Current
V
CS
- V
BATT
, average value
V
BATT
< 2V
127
3
157
6
mV
mA
Current Threshold for Full-Battery
Indication
I
LOAD
falling, as percentage of fast charge current
4
20
%
DRIVER FUNCTIONS
EXT On-Resistance
TIMER FUNCTIONS
Timer Accuracy
CHG
Output Low Current
EXT high or low
12
C
CT
= 100nF for 3 hours
V
CHG
= 1V
-16
7
+16
14
%
mA
相關(guān)PDF資料
PDF描述
MAX1926 Switch-Mode 1-Cell Li+ Chargers
MAX1926ETC Switch-Mode 1-Cell Li+ Chargers
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1925ETC 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
MAX1925ETC+ 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
MAX1925ETC+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
MAX1925ETC-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 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
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