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參數(shù)資料
| 型號： | MAX745 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 8-Bit Parallel-Out Serial Shift Registers 14-CFP -55 to 125 |
| 中文描述： | 開關模式鋰離子電池充電器 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 91K |
| 代理商： | MAX745 |
M
S witc h-Mode Lithium-Ion
Battery Charger
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DCIN to GND ............................................................-0.3V to 26V
BST, DHI to GND ......................................................-0.3V to 30V
BST to LX ....................................................................-0.3V to 6V
DHI to LX............................................(LX - 0.3V) to (BST + 0.3V)
LX to GND ................................................-0.3V to (DCIN + 0.3V)
VL to GND...................................................................-0.3V to 6V
CELL0, CELL1, IBAT, STATUS, CCI, CCV,
REF, SETI, VADJ , DLO, THM/
SHDN
to GND ..-0.3V to (VL + 0.3V)
ELECTRICAL CHARACTERISTICS
(V
DCIN
= 18V, V
BATT
= 8.4V,
T
A
= 0°C to +85°C
. Typical values are at T
A
= +25°C, unless otherwise noted.)
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.
BATT, CS to GND .....................................................-0.3V to 20V
PGND to GND..........................................................-0.3V to 0.3V
VL Current...........................................................................50mA
Continuous Power Dissipation (T
A
= +70°C)
SSOP (derate 8.00mW/°C above +70°C) ......................640mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature.........................................-60°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
6.0V < V
DCIN
< 24V, logic inputs = VL
6.0V < V
DCIN
< 24V, no load
T
A
= +25°C
6.0V < V
DCIN
< 24V
VL < 3.2V, V
CS
= 12V
VL > 5.15V, V
CS
= 12V
VL < 3.2V, V
BATT
= 12V
VL > 5.15V, V
BATT
= 12V
Output high or low
0 < I
REF
< 1mA
Output high or low
CONDITIONS
V
0
19
BATT, CS Input Voltage Range
CS to BATT Offset Voltage (Note 1)
μ
A
5
CS Input Current
μ
A
5
BATT Input Current
6
14
DLO On-Resistance
4
7
DHI On-Resistance
mA
V
4
6
DCIN Quiescent Supply Current
VL Output Voltage
V
6
24
DCIN Input Voltage Range
%
89
93
DHI Maximum Duty Cycle
kHz
270
300
330
Oscillator Frequency
mV/mA
10
20
REF Output Load Regulation
5.15
4.17
4.16
5.40
4.2
4.2
5.65
4.23
4.24
V
REF Output Voltage
UNITS
MIN
TYP
MAX
PARAMETER
4V < V
BATT
< 16V
mV
±1.5
185
18
SETI = V
REF
(full scale)
SETI = 400mV
mV
170
14
205
22
CS to BATT
Current-Sense Voltage
Not including VADJ resistor tolerance
With 1% tolerance VADJ resistors
%
-0.65
-0.75
0.65
0.75
Absolute Voltage Accuracy
SWITCHING REGULATOR
SUPPLY AND REFERENCE
400
500
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