Ultra-Efficient Charge Pumps for
Six White/RGB LEDs in 3mm x 3mm Thin QFN
ABSOLUTE MAXIMUM RATINGS
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
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
(VVDD = VIN = 3.6V, VGND = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX
IN Operating Voltage
VDD Operating Voltage
Undervoltage-Lockout (UVLO)
Threshold
VIN rising
2.7 5.5
1.7 5.5
2.35 2.45 2.55
Undervoltage-Lockout Hysteresis
100
IN Shutdown Supply Current
(All Outputs Off)
VDD Shutdown Supply Current
www.DatIaNShOepeet4raUt.incogmSupply Current
VSCL = VSDA = VDD (MAX8647), TA = +25°C
VEN_ = 0V (MAX8648)
TA = +85°C
TA = +25°C
TA = +85°C
Charge pump inactive, two LEDs enabled at 0.1mA
setting
Charge pump active, 1MHz switching, all LEDs
enabled at 0.1mA setting
0.4 2.5
0.4
0.1 1.0
0.1
70 100
1.6
VDD Operating Supply Current
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
I2C INTERFACE (MAX8647)
Charge pump inactive, two LEDs enabled at 0.1mA
setting, TA = +25°C
Charge pump active, 1MHz switching, all LEDs
enabled at 0.1mA setting, TA = +85°C
Logic-Input High Voltage (SDA, SCL) VDD = 1.7V to 5.5V, hysteresis = 0.2 x VDD (typ)
0.7 x
VDD
0.1
0.1
+160
20
1.0
Logic-Input Low Voltage (SDA, SCL)
Filtered Pulse Width (tSP)
Logic-Input Current (SDA, SCL)
VDD = 1.7V to 5.5V, hysteresis = 0.2 x VDD (typ)
VIN = 2.7V to 5.5V, VDD = 1.7V to 5.5V (Note 2)
VIL = 0V or VIH = 5.5V
TA = +25°C
TA = +85°C
0.3 x
VDD
50
-1 0.01 +1
0.1
UNITS
V
V
V
mV
µA
µA
µA
mA
µA
°C
°C
V
V
ns
µA
2 _______________________________________________________________________________________
