參數(shù)資料
型號(hào)： 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(yè)數(shù)： 2/32頁(yè)
文件大?。?/td> 183K
代理商： MAX1644
M
Advanc ed Chemistry-Independent, Level 2
Battery Charger with Input Current Limiting
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DCIN, CVS, CSSP, CSSN, LX to GND....................-0.3V to +30V
CSSP to CSSN, CSIP to CSIN ...............................-0.3V to +0.3V
PDS, PDL to GND ...................................-0.3V to (V
CSSP
+ 0.3V)
BST to LX..................................................................-0.3V to +6V
DHI to LX...................................................-0.3V to (V
BST
+ 0.3V)
CSIP, CSIN, BATT to GND .....................................-0.3V to +22V
LDO to GND.....................-0.3V to (lower of 6V or V
DCIN
+ 0.3V)
DLO to GND ...........................................-0.3V to (V
DLOV
+ 0.3V)
REF, DAC, CCV, CCI, CCS, CLS to GND.....-0.3V to (V
LDO
+ 0.3V)
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
DD
= +3.3V, V
BATT
= +16.8V, V
DCIN
= +18V,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical values are at
T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
DD
, SCL, SDA, INT, DLOV to GND.........................-0.3V to +6V
THM to GND...............................................-0.3V to (V
DD
+ 0.3V)
PGND to GND .......................................................-0.3V to +0.3V
LDO Continuous Current.....................................................50mA
Continuous Power Dissipation (T
A
= +70°C)
28-Pin QSOP (derate 10.8mW/°C above +70°C).......860mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature.........................................-60°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
8V < V
DCIN
< 28V
V
CVS
referred to V
BATT
, V
CVS
rising
V
PDS
= V
CSSP
- 2V, V
DCIN
= 16V
PDS = CSSP
I
PDS
= 0
0 < V
DCIN
< 6V, V
DD
= 5V, V
SCL
= 5V,
V
SDA
= 5V
V
CVS
referred to V
BATT
V
CVS
referred to V
BATT
, V
CVS
falling
When the SMB res-
ponds to commands
8V < V
DCIN
< 28V
8V < V
DCIN
< 28V
When AC_PRESENT
switches
When I
CHARGE
drops to 128mA
8V < V
DCIN
< 28V, 0 < I
LDO
< 15mA
0 < I
REF
< 200μA
CONDITIONS
mV
-150
-100
-50
V
PDL-OFF
PDL Load Switch Turn-Off
Threshold
mA
10
50
PDS Turn-Off Current
μA
100
150
300
PDS Turn-On Current
V
8
10
12
PDS Output Low Voltage, PDS
Below CSSP
mV
100
200
300
V
PDS-HYS
PDS Charging Source Switch
Threshold Hysteresis
mV
50
100
150
V
PDS-OFF
PDS Charging Source Switch
Turn-Off Threshold
V
2.4
2.8
BATT Undervoltage Threshold
(Note 2)
V
4.066
4.096
4.126
V
REF
REF Output Voltage
mA
1.7
6
I
DCIN
DCIN Supply Current
V
8
28
V
DCIN
μA
80
150
I
DD
V
DD
Quiescent Current
2.1
2.5
V
2.55
2.8
V
DD
Undervoltage Threshold
V
2.8
5.65
V
DD
Input Voltage Range
(Note 1)
mA
0.7
2
DCIN Supply Current Charging
Inhibited
V
7.5
7.4
5.4
7.85
DCIN Undervoltage Threshold
7
V
5.15
5.65
V
LDO
LDO Output Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
DCIN rising
DCIN falling
V
DD
rising
V
DD
falling
DCIN Typical Operating Range
GENERAL SPECIFICATIONS
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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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