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参数资料
| 型号： | MAX1757EAI+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | Stand-Alone, Switch-Mode Li+ Battery Charger with Internal 14V Switch |
| 中文描述： | BATTERY CHARGE CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封装： | 5.30 MM, 0.65 MM PITCH, SSOP-28 |
| 文件页数： | 10/17页 |
| 文件大小： | 218K |
| 代理商： | MAX1757EAI+T |
MAX1757
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 14V Switch
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, VDCIN = VHSD = VCSSP = VCSSN = 12V, V SHDN = VVL, VCELL = GND, VBATT = VCS = 4.2V, VVADJ = VREF/2,
VISETIN = VISETOUT = VREF, RTHM = 10k
, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +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.
BATT, CS, DCIN, CSSP, CSSN, HSD to GND ........-0.3V to +15V
CSSP to CSSN.......................................................-0.6V to +0.6V
BST to GND ............................................................-0.3V to +21V
BST to LX..................................................................-0.3V to +6V
LX to PGND ..............................................-0.6V to (VHSD + 0.3V)
VL, SHDN, ISETIN, ISETOUT, REF, VADJ, CELL, TIMER1,
TIMER2, CCI, CCS, CCV, THM to GND ................-0.3V to +6V
FASTCHG, FULLCHG, FAULT to GND ..................-0.3V to +30V
CS to BATT Current ............................................................±3.5A
PGND to GND .......................................................-0.3V to +0.3V
VL Source Current...............................................................50mA
Continuous Power Dissipation (TA = +70°C)
28-Pin SSOP (derate 9.5mW/°C above +70°C) ...........762mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
VBATT = 14V, done state
Falling edge
CELL = REF, VBATT = 12V, any charging state
V SHDN = GND, VBATT =14V
6V < VDCIN < 14V
Internal resistor between CS and BATT,
1.5A RMS operating
See PWM Controller section
VBST = VLX + 4.5V
VLX = VHSD = VDCIN =14V, VSHDN = GND
IREF = 0 to 1mA
VLX = PGND, VHSD = VDCIN = 14V,
V SHDN = GND
VCSSN = VCSSP = VDCIN = 14V, VSHDN = GND
6V < VDCIN < 14V
Rising edge
6V < VDCIN < 14V
IVL = 0 to 15mA
In dropout, fOSC / 4
6V < VDCIN < 14V
Nondropout fOSC
CONDITIONS
A
150
270
BATT, CS Input Current
A
280
540
A
0.1
5
m
110
170
RCS
CS to BATT Current-Sensing
Resistance
12
LX to PGND On-Resistance
m
150
250
HSD to LX On-Resistance
A
0.1
10
LX Off-State Leakage
A
0.1
10
HSD Off-State Leakage
A
210
CSSN/CSSP Off-State Leakage
%
97
98
LX Maximum Duty Cycle
kHz
270
300
330
fOSC
PWM Oscillator Frequency
V
0.075
0.125
0.175
DCIN to BATT Dropout
Threshold, DCIN Falling
mA
57
DCIN Quiescent Supply Current
mV
614
REF Load Regulation
mV
26
REF Line Regulation
V
0.20
0.30
0.40
DCIN to BATT Dropout
Threshold, DCIN Rising
V
5.10
5.40
5.70
VL Output Voltage
mV
44
65
VREF
4.179
4.20
4.221
REF Output Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
614
DCIN Input Voltage Range
SUPPLY AND REFERENCE
SWITCHING REGULATOR
VL Output Load Regulation
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