MAX1707 查看數據表（PDF） - Maxim Integrated

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MAX1707

Light-Management IC with Efficient 1x/1.5x/2x Charge Pump for Backlight/Flash/RGB LEDs

Maxim Integrated 

Light-Management IC with Efficient 1x/1.5x/2x

Charge Pump for Backlight/Flash/RGB LEDs

ABSOLUTE MAXIMUM RATINGS

VDD, IN, PIN, SCK, SDA, STB, OUT to GND .........-0.3V to +6.0V

M_, S_, F_ to GND ....................................-0.3V to (VOUT + 0.3V)

C1N, C2N to GND .......................................-0.3V to (VIN + 0.3V)

C1P, C2P to GND ..-0.3V to greater of (VOUT + 0.3V) or (VIN + 0.3V)

PGND to GND .......................................................-0.3V to +0.3V

OUT Short Circuit to GND ..........................................Continuous

Continuous Power Dissipation (TA = +70°C)

24-Pin Thin QFN (derate 20.8mW/°C above +70°C)...1666mW

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 = VPIN = VDD = 3.6V, VGND = VPGND = 0V, temperature derating disabled, TA = -40°C to +85°C, typical values are at TA =

+25°C, unless otherwise noted.) (Note 1)

PARAMETER

IN Operating Voltage

VDD Operating Range

Undervoltage-Lockout Threshold

Undervoltage-Lockout Hysteresis

Output Overvoltage-Protection Threshold

IN + PIN No-Load Supply Current

IN + PIN Shutdown Supply Current

VDD Quiescent Current

Soft-Start Time

CONDITIONS

VIN rising or falling

VOUT rising

1.5x or 2x mode

10% setting, 1x mode, flash off

All LEDs off, STB = SDA = TA = +25°C

SCK = VDD, I2C ready

TA = +85°C

All LEDs off, STB = SDA = TA = +25°C

SCK = VDD, I2C ready

TA = +85°C

Startup into 1x mode

Startup into 1.5x mode

Startup into 2x mode

MIN TYP MAX UNIT

2.7

5.5

V

2.7

5.5

V

2.25

2.60

V

50

mV

4.75 5.00 5.25

V

4.0

6.5

mA

0.35

0.7

5

µA

0.8

0.1

1

µA

0.1

0.5

1.0

ms

1.5

LED Current Derating Function Start

Temperature

Temperature derating enabled

+40

°C

LED Current Derating Function Slope

LED Current SUB Output Accuracy

(Note 2)

LED Current FLASH and MAIN Output

Accuracy

Maximum M_, S_, F_ Sink Current

LED Dropout Voltage

1.5x and 2x Mode Regulation Voltage

TA = +40°C to +85°C, temperature derating

enabled

Default current setting, TA = +25°C

Default current setting, TA = -40°C to +85°C

Default current setting (Note 2)

M_, S_

F_

M_, S_

100% LED setting (Note 3)

F_

-1.7

%/°C

-2

±0.3

+2

%

-5

+5

-5

±0.3

+5

%

28.5 30.0

mA

95

100

40

90

mV

40

90

150

mV

1x to 1.5x and 1.5x to 2x Mode Transition

Threshold

VM_, VS_, VF_ falling

100

mV

2 _______________________________________________________________________________________

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