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MAX1757 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Stand-Alone / Switch-Mode Li Battery Charger - Maxim

भाग संख्या MAX1757
समारोह Stand-Alone / Switch-Mode Li Battery Charger
मैन्युफैक्चरर्स Maxim 
लोगो Maxim लोगो 
पूर्व दर्शन
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<?=MAX1757?> डेटा पत्रक पीडीएफ

MAX1757 pdf
MAX1757
Stand-Alone, Switch-Mode
Li+ Battery Charger with
Internal 14V Switch
Absolute Maximum Ratings
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
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.
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 = 10kΩ, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SUPPLY AND REFERENCE
DCIN Input Voltage Range
6 14 V
DCIN Quiescent Supply Current
6V < VDCIN < 14V
5 7 mA
DCIN to BATT Dropout
Threshold, DCIN Falling
Falling edge
0.075 0.125 0.175
V
DCIN to BATT Dropout
Threshold, DCIN Rising
VL Output Voltage
VL Output Load Regulation
Rising edge
6V < VDCIN < 14V
IVL = 0 to 15mA
0.20 0.30 0.40
V
5.10 5.40 5.70
V
44 65 mV
REF Output Voltage
VREF 6V < VDCIN < 14V
4.179 4.20 4.221
V
REF Line Regulation
6V < VDCIN < 14V
2 6 mV
REF Load Regulation
SWITCHING REGULATOR
IREF = 0 to 1mA
6 14 mV
PWM Oscillator Frequency
fOSC Nondropout fOSC
270 300 330 kHz
LX Maximum Duty Cycle
CSSN/CSSP Off-State Leakage
In dropout, fOSC / 4
97 98
%
VCSSN = VCSSP = VDCIN = 14V, V SHDN = GND
2 10 µA
HSD Off-State Leakage
VLX = PGND, VHSD = VDCIN = 14V,
V SHDN = GND
0.1 10 µA
LX Off-State Leakage
HSD to LX On-Resistance
LX to PGND On-Resistance
VLX = VHSD = VDCIN =14V, V SHDN = GND
VBST = VLX + 4.5V
See PWM Controller section
0.1 10 µA
150 250 mΩ
1 2Ω
CS to BATT Current-Sensing
Resistance
RCS
Internal resistor between CS and BATT,
1.5A RMS operating
110 170 mΩ
BATT, CS Input Current
V SHDN = GND, VBATT =14V
CELL = REF, VBATT = 12V, any charging state
VBATT = 14V, done state
0.1 5 µA
280 540 µA
150 270 µA
www.maximintegrated.com
Maxim Integrated | 2

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