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MAX8814 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 28V Linear Li Battery Charger - Maxim Integrated Products

भाग संख्या MAX8814
समारोह 28V Linear Li Battery Charger
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
पूर्व दर्शन
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<?=MAX8814?> डेटा पत्रक पीडीएफ

MAX8814 pdf
MAX8814
28V Linear Li+ Battery Charger
with Smart Autoboot Assistant
Absolute Maximum Ratings
IN to GND ...............................................................-0.3V to +30V
ABI, BATT, EN, POK to GND....................................-0.3V to +6V
ABO to GND............................................-0.3V to (VBATT + 0.3V)
ISET to GND .............................................................-0.3V to +4V
IN to BATT Continuous Current .........................................1ARMS
Continuous Power Dissipation (TA = +70°C)
8-Pin TDFN (derate 11.9mW/°C above +70°C)
(multilayer PCB) ........................................................953.5mW
BATT Short-Circuit Duration .......................................Continuous
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
(VIN = 5V, VBATT = 4V, RPOK = 1MΩ to BATT, EN = 0V, RISET = 2.8kΩ to GND, CBATT = 2.2µF, TA = -40°C to +85°C, unless other-
wise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Input Voltage Range
0 28 V
Input Operating Voltage Range
4.25 6.80 V
Power-OK Threshold
VIN - VBATT,
10mV hysteresis (typ)
VIN rising
VIN falling
40
mV
30
Overvoltage-Lockout Trip
Threshold
VIN rising, 100mV hysteresis (typ)
6.8 7 7.5 V
IN Input Current
Constant-current charging mode (IBATT = 0A)
IC disabled (VEN = 5V)
VIN = 4V,
VBATT = 4.2V
TA = +25°C
TA = +85°C
0.8
0.23
0.021
0.021
1.35
0.50
0.065
mA
BATT Input Current
VIN = 0 to 4V,
VBATT = 4.2V
1 10
µA
IC disabled
3
Battery Regulation Voltage
IBATT = 0A
TA = 0°C to +85°C
TA = -40°C to +85°C
4.179 4.200 4.221
4.158 4.200 4.242
V
Minimum BATT Bypass
Capacitance
2.2 µF
Fast-Charge Current
VBATT = 3.5V
VBATT = 3.5V,
RISET = 14kΩ
TA = 0°C to +85°C
TA = -40°C to +85°C
TA = 0°C to +85°C
TA = -40°C to +85°C
524 570 616
485 570 656
89 107 125
80 107 134
mA
Prequalification Charge Current
Percentage of the fast-charge current, VBATT = 2.2V,
TA = 0°C to +85°C
4 10 15 %
Die Temperature Regulation
Threshold
+115
°C
VBATT Prequalification Threshold
Voltage
VBATT rising, 100mV hysteresis (typ)
2.3 2.5 2.7
V
Current-Sense Amplifier Gain
(IBATT to IISET)
IBATT = 570mA
877.2
µA/A
www.maximintegrated.com
Maxim Integrated | 2

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