參數(shù)資料
型號： MAX1644
廠商： 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)置同步整流與開關(guān)
文件頁數(shù)： 7/32頁
文件大?。?/td> 183K
代理商： MAX1644
M
Advanc ed Chemistry-Independent, Level 2
Battery Charger with Input Current Limiting
_______________________________________________________________________________________
7
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.)
SDA Hold Time from SCL
t
HD:DAT
0
ns
Start Condition Hold Time
from SCL
Start Condition Setup Time
from SCL
t
SU:STA
4.7
μs
t
HD:STA
4
μs
SDA Setup Time from SCL
t
SU:DAT
250
ns
PARAMETER
SYMBOL
MIN
MAX
500
1
15
UNITS
μA
μA
μA
DLO Output Resistance
THERMISTOR COMPARATOR SPECIFICATIONS
14
DHI Output Resistance
14
Inductor Peak Current Limit
5.0
7.0
A
DLOV Supply Current
10
μA
THM Input Bias Current
-1
1
μA
Thermistor Overrange Threshold
Thermistor Cold Threshold
Thermistor Hot Threshold
89.5
74
22
92.5
77
25
LX Input Quiescent Current
BST Supply Current
LX Input Bias Current
% of V
DD
% of V
DD
Thermistor Underrange
Threshold
6
9
SDA/SCL Input Low Voltage
SDA/SCL Input High Voltage
SDA/SCL Input Bias Current
SDA Output Low Sink Current
INT
Output High Leakage
INT
Output Low Voltage
SMB INTERFACE TIMING SPECIFICATIONS
(V
DD
= 2.8V to 5.65V, Figures 4 and 5)
0.6
V
V
1.4
-1
6
1
μA
mA
μA
mV
1
200
SCL High Period
SCL Low Period
t
HIGH
t
LOW
4
μs
μs
4.7
CONDITIONS
V
DD
= 2.8V to 5.65V, V
THM
falling
DLO high or low, V
DLOV
= 4.5V
V
DD
= 2.8V to 5.65V, V
THM
falling
DHI high or low, V
BST
- V
LX
= 4.5V
R
CSI
= 50m
V
DLOV
= V
LDO
, DLO low
V
THM
= 4% of V
DD
to 96% of V
DD
,
V
DD
= 2.8V to 5.65V
V
DD
= 2.8V to 5.65V, V
THM
falling
V
DD
= 2.8V to 5.65V, V
THM
falling
V
DCIN
= 28V, V
BATT
= V
LX
= 20V
V
DCIN
= 0, V
BATT
= V
LX
= 20V
DHI high
V
SDA
= 0.4V
V
INT
= 5.65V
I
INT
= 1mA
% of V
DD
% of V
DD
SMB INTERFACE LEVEL SPECIFICATIONS
(V
DD
= 2.8V to 5.65V)
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參數(shù)描述
MAX1644EAE 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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
MAX1644EAE/GH9 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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
MAX1644EAE/GH9-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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
MAX1644EAE+ 功能描述:直流/直流開關(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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