參數(shù)資料
型號(hào)： MAX1644
廠(chǎng)商： Maxim Integrated Products, Inc.
英文描述： Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting
中文描述： 2A、低電壓、降壓型穩(wěn)壓器，內(nèi)置同步整流與開(kāi)關(guān)
文件頁(yè)數(shù)： 8/32頁(yè)
文件大小： 183K
代理商： MAX1644
4.090
4.092
4.096
4.094
4.098
4.100
0
100
LOAD CURRENT (
μ
A)
50
150
200
250
300
REFERENCE VOLTAGE LOAD REGULATION
M
V
R
5.20
5.30
5.25
5.35
5.50
5.55
5.45
5.40
5.60
0
4
6
LOAD CURRENT (mA)
8
10
2
12 14 16 18 20
LDOLOAD REGULATION
M
V
L
M
Advanc ed Chemistry-Independent, Level 2
Battery Charger with Input Current Limiting
8
_______________________________________________________________________________________
Typic al Operating Charac teristic s
(Circuit of Figure 1, V
DCIN
= 20V, T
A
= +25°C, unless otherwise noted.)
LOAD-TRANSIENT RESPONSE
(BATTERY REMOVAL AND REINSERTION)
ChargingVoltage() = 15000mV
ChargingCurrent() = 1000mA
CCI
CCI
CCI
16V
14V
12V
1A
0
1.5V
V
C
/
C
I
B
V
B
1V
0.5V
2ms/div
CCV
CCV
CCV
BATTERY REMOVED
BATTERY INSERTED
LOAD-TRANSIENT RESPONSE
(STEP IN LOAD CURRENT)
MAX1645 toc02
ChargingCurrent() = 3008mA
V
= 16V
LOAD STEP: 0A TO2A
I
SOURCE
LIMIT = 2.5A
CCS
CCS
CCS
4A
2A
0
2A
1V
0
1ms/div
CCI
CCI
CCI
V
C
/
C
I
B
V
B
5.20
5.25
5.30
5.35
5.40
5.45
5.50
5.55
5.60
5
10
15
20
25
30
LDOLINE REGULATION
M
V
DCIN
(V)
V
L
I
LOAD
= 0
4.080
4.090
4.085
4.100
4.095
4.105
4.110
-40
20
40
-20
0
60
80
100
REFERENCE VOLTAGE
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
V
R
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
DD
= +3.3V, V
BATT
= +16.8V, V
DCIN
= +18V,
T
A
= -40°C to +85°C
, unless otherwise noted. Guaranteed by design.)
Note 1:
Guaranteed by meeting the SMB timing specs.
Note 2:
The charger reverts to a trickle-charge mode of I
CHARGE
= 128mA below this threshold.
Note 3:
Does not include current-sense resistor tolerance.
Note 4:
Voltage difference between CCV, and CCI or CCS when one of these three pins is held low and the others try to pull high.
Maximum Charge Period
Without a ChargingVoltage() or
Charging Current() loaded
t
WDT
140
210
sec
SDA Output Data Valid
from SCL
t
DV
1
μs
PARAMETER
SYMBOL
MIN
MAX
UNITS
CONDITIONS
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1644EAE 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
MAX1644EAE/GH9 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
MAX1644EAE/GH9-T 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
MAX1644EAE+ 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 2A Step-Dow w/Synch Rectification RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
MAX1644EAE+T 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 2A Step-Dow w/Synch Rectification RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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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