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MAX8831 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - High Efficiency White LED Step-Up Converter - Maxim Integrated Products

भाग संख्या MAX8831
समारोह High Efficiency White LED Step-Up Converter
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
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<?=MAX8831?> डेटा पत्रक पीडीएफ

MAX8831 pdf
MAX8831
High-Efficiency, White LED
Step-Up Converter with I2C
Interface in 2mm x 2mm WLP
Absolute Maximum Ratings
IN to GND ..............................................................-0.3V to +6.0V
VDD, COMP to GND.....................................-0.3V to (VIN + 0.3V)
SDA, SCL to GND.......................................-0.3V to (VDD + 0.3V)
OUT, LX, LED1–LED5 to GND................................-0.3V to +30V
ILX (Note 1) .....................................................................1.2ARMS
PGND to GND .......................................................-0.3V to +0.3V
Operating Temperature Range ...........................-40°C to +85°C
Continuous Power Dissipation (TA = +70°C)
16-Bump, 2mm x 2mm WLP
(derate 8.2mW/°C above +70°C ambient) ...................660mW
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Bump Temperature (soldering, reflow) ............................+260°C
Note 1: LX has an internal clamp diode to PGND. Applications that forward bias this diode should take care not to exceed the power
dissipation limits of the device.
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 = 3.6V, VGND = VPGND = 0V, VDD = 1.8V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
CONDITIONS
IN Supply Voltage
VDD Supply Voltage
IN Undervoltage Lockout
Threshold
IN Quiescent Current
No load, 2MHz switching
IN Shutdown Current
VDD Standby Current
IN Standby Current
OUT Leakage Current
LED_ CURRENT REGULATORS
VDD = GND
VSDA = VSCL = VDD
VSDA = VSCL = VDD
VIN = VOUT = 5.5V, VDD = GND
TA = +25°C
TA = +85°C
TA = +25°C
TA = +85°C
TA = +25°C
TA = +85°C
TA = +25°C
TA = +85°C
LED_ Current Regulator Dropout
Voltage (Note 2)
LED_ Current Accuracy
LED_ Leakage Current
LED_ Regulation Voltage
N-CHANNEL SWITCH
LX Current Limit
ILED1 or ILED2 = 25mA setting
ILED3 or ILED4 or ILED5 = 5.0mA setting
ILED1 or ILED2 = 25.25mA
setting
TA = +25°C
TA = -40°C to +85°C
ILED3 or ILED4 or ILED5 = 5.0mA TA = +25°C
setting
TA = -40°C to +85°C
VLED_ = 5.5V, VDD = GND
TA = +25°C
TA = +85°C
LX On-Resistance
ILX = 200mA
MIN TYP MAX UNITS
2.7 5.5 V
1.6 5.5 V
2.4 2.6 V
1.5
0.1 1
0.1
0.1 1
0.1
25
2
0.01 1
0.1
mA
µA
µA
µA
µA
200
150
-2 +2
-5 +5
-2 +2
-5 +5
0.01 1
0.1
0.35
780 860
0.3
mV
mV
%
%
µA
V
mA
Ω
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