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參數資料
| 型號： | MAX1925ETC |
| 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： | 3/16頁 |
| 文件大小： | 443K |
| 代理商： | MAX1925ETC |
M
Switch-Mode 1-Cell Li+ Chargers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(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
= 0
°
C to +85
°
C
,
unless otherwise noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
CONDITIONS
MIN
3.92
TYP
4.00
MAX
4.08
UNITS
V
Restart Threshold
Charging restarts when BATT falls to this point
BATT Voltage Fault Threshold
If BATT exceeds this threshold, EXT is high
(external MOSFET is off) and
CHG
blinks
4.275
4.350
4.425
V
CURRENT LOOP
V
CS
- V
BATT
, average value
Rise/fall hysteresis
V
BATT
< 2V
Average value, 2V < V
BATT
< 3V (charge current is C/10)
Rise/fall hysteresis, 2V < V
BATT
< 3V
132
142
30
4
14
12
152
CS - BATT Sense Threshold
mV
Prequal1 Charge Current
3
6
mA
Prequal2 CS - BATT Sense
Threshold
mV
Current Threshold for
Full-Battery Indication
I
LOAD
falling, as percentage of fast charge current
6
12
20
%
DRIVER FUNCTIONS
EXT Sink/Source Current
EXT On-Resistance
Nominal Switching Frequency
TIMER FUNCTIONS
Full-Time Timeout - t
FULL
EXT high or low
V
BATT
= 3.6V, L =10μH
1
5
A
12
235
kHz
C
CT
= 100nF
3.02
hours
Prequal1 Timeout
C
CT
= 100nF
t
FULL/1088
(10s)
s
Prequal2 Timeout
C
CT
= 100nF
t
FULL/17
(10.67 min)
min
Timer Accuracy
CHG
Output Low Current
C
CT
= 100nF for 3 hours
V
CHG
= 1V
-15
7
+15
14
%
mA
10
CHG
Output High Leakage
Current
V
CHG
= 12V
1
μA
CHG
Blink Rate - Fault
ACON
High Leakage
ACON
Sink Current
THERMISTOR MONITOR
(Note 2)
Fault state (50% duty cycle), C
CT
= 100nF
V
ACON
= 12V
V
ACON
= 0.4V
0.5
0.01
Hz
μA
mA
1.00
2
THRM Sense Current for Hot
Qualification
344.1
352.9
361.7
μA
THRM Sense Current for Cold
Qualification
47.58
48.80
50.02
μA
THRM Sense-Voltage Trip Point
(Note 3)
1.386
1.400
1.414
V
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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+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 |
| 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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