MAX8647_0709 datasheet(2/15 Pages) MAXIM

No de pièce	MAX8647_0709

Description	Ultra-Efficient Charge Pumps for Six White/RGB LEDs in 3mm x 3mm Thin QFN

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Ultra-Efficient Charge Pumps for

Six White/RGB LEDs in 3mm x 3mm Thin QFN

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VVDD = VIN = 3.6V, VGND = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

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.

VDD, IN, SCL, SDA, ENA, ENB, ENC to GND........-0.3V to +6.0V

VDD, IN, SCL, SDA, ENA, ENB, ENC to NEG ........-0.3V to +6.0V

NEG to GND .............................................................-6V to +0.3V

C2N to GND .............................................................-6V to +0.3V

C1P, C2P to GND .......................................-0.3V to (VIN + 0.3V)

C2P to C1N ..................................................-0.3V to (VIN + 0.3V)

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

Continuous Power Dissipation (TA = +70°C)

16-Pin Thin QFN 3mm x 3mm (derate 20.8mW/°C

above +70°C).............................................................1667mW

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IN Operating Voltage

2.7

5.5

V

VDD Operating Voltage

1.7

5.5

V

Undervoltage-Lockout (UVLO)

Threshold

VIN rising

2.35

2.45

2.55

V

Undervoltage-Lockout Hysteresis

100

mV

TA = +25°C

0.4

2.5

IN Shutdown Supply Current

(All Outputs Off)

VSCL = VSDA = VDD (MAX8647),

VEN_ = 0V (MAX8648)

TA = +85°C

0.4

µA

TA = +25°C

0.1

1.0

VDD Shutdown Supply Current

TA = +85°C

0.1

µA

Charge pump inactive, two LEDs enabled at 0.1mA

setting

70

100

µA

IN Operating Supply Current

Charge pump active, 1MHz switching, all LEDs

enabled at 0.1mA setting

1.6

mA

Charge pump inactive, two LEDs enabled at 0.1mA

setting, TA = +25°C

0.1

1.0

VDD Operating Supply Current

Charge pump active, 1MHz switching, all LEDs

enabled at 0.1mA setting, TA = +85°C

0.1

µA

Thermal-Shutdown Threshold

+160

°C

Thermal-Shutdown Hysteresis

20

°C

I2C INTERFACE (MAX8647)

Logic-Input High Voltage (SDA, SCL)

VDD = 1.7V to 5.5V, hysteresis = 0.2 x VDD (typ)

0.7 x

VDD

V

Logic-Input Low Voltage (SDA, SCL)

VDD = 1.7V to 5.5V, hysteresis = 0.2 x VDD (typ)

0.3 x

VDD

V

Filtered Pulse Width (tSP)VIN = 2.7V to 5.5V, VDD = 1.7V to 5.5V (Note 2)

50

ns

TA = +25°C

-1

0.01

+1

Logic-Input Current (SDA, SCL)

VIL = 0V or VIH = 5.5V

TA = +85°C

0.1

µA

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