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參數(shù)資料
| 型號(hào)： | MAX712 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | NiCd/NiMH Battery Fast-Charge Controllers |
| 中文描述： | NiCd/NiMH電池快速充電控制器 |
| 文件頁(yè)數(shù)： | 2/18頁(yè) |
| 文件大?。?/td> | 168K |
| 代理商： | MAX712 |
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M
NiCd/NiMH Battery
Fast-Charge Controllers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V+ to BATT-.................................................................-0.3V, +7V
BATT- to GND........................................................................±1V
BATT+ to BATT-
Power Not Applied............................................................±20V
With Power Applied................................The higher of ±20V or
ELECTRICAL CHARACTERISTICS
(I
V+
= 10mA, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Refer to Typical Operating Circuit All measurements are with respect to
BATT-, not GND.)
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.
±2V x (programmed cells)
DRV to GND ..............................................................-0.3V, +20V
FASTCHG
to BATT-...................................................-0.3V, +12V
All Other Pins to GND......................................-0.3V, (V+ + 0.3V)
V+ Current.........................................................................100mA
DRV Current......................................................................100mA
REF Current.........................................................................10mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C............842mW
Narrow SO (derate 8.70mW/°C above +70°C .............696mW
CERDIP (derate 10.00mW/°C above +70°C ................800mW
Operating Temperature Ranges
MAX71_C_E .......................................................0°C to +70°C
MAX71_E_E .................................................... -40°C to +85°C
MAX71_MJ E ................................................. -55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
V
DRV
= 10V
V+ = 0V, BATT+ = 17V
PGM0 = PGM1 = BATT-, BATT+ = 30V
PGM3 = BATT-
MAX713
5mA < I
V+
< 20mA
PGM3 = REF
PGM3 = open
PGM3 = V+
0V < TEMP < 2V, TEMP voltage rising
V
LIMIT
= V+
Per cell
1.2V < V
LIMIT
< 2.5V, 5mA < I
DRV
< 20mA,
PGM0 = PGM1 = V+
0mA < I
REF
< 1mA
CONDITIONS
mA
30
DRV Sink Current
%
-1.5
1.5
Battery-Voltage to Cell-Voltage
Divider Accuracy
%
-15
15
Timer Accuracy
mV
26.0
31.3
-2.5
38.0
Trickle-Charge VSENSE
12.0
15.6
20.0
4.5
7.8
12.0
1.5
3.9
7.0
mV
225
250
275
Fast-Charge VSENSE
V
1.6
1.65
1.7
Internal Cell Voltage Limit
mV
-30
30
VLIMIT Accuracy
μA
-1
1
THI, TLO, TEMP, VLIMIT Input Bias Current
μA
k
μF
nF
V
5
BATT+ Leakage
BATT+ Resistance with Power On
C1 Capacitance
C2 Capacitance
REF Voltage
mA
5
I
V+
(Note 1)
V
4.5
5.5
V+ Voltage
mV
-10
10
THI, TLO Offset Voltage (Note 2)
V
0
2
THI, TLO, TEMP Input Range
V
1.25
2.50
External VLIMIT Input Range
V
0.35
0.50
Undervoltage Lockout
30
0.5
5
1.96
2.04
UNITS
MIN
TYP
MAX
PARAMETER
MAX712
mV/t
A
per cell
0
Voltage-Slope Sensitivity (Note 3)
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