MAX8648ETE+ Maxim Integrated Products, MAX8648ETE+ Datasheet - Page 9
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MAX8648ETE+
Manufacturer Part Number
MAX8648ETE+
Description
IC LED DRVR WT/RGB BCKLGT 16TQFN
Manufacturer
Maxim Integrated Products
Type
Backlight, White LED, RGB (Serial Interface)r
Datasheet
1.MAX8647ETE.pdf
(15 pages)
Specifications of MAX8648ETE+
Constant Current
Yes
Topology
PWM, Switched Capacitor (Charge Pump)
Number Of Outputs
6
Internal Driver
Yes
Type - Primary
Backlight
Type - Secondary
RGB, White LED
Frequency
1MHz
Voltage - Supply
1.7 V ~ 5.5 V
Voltage - Output
5V
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
24mA
Internal Switch(s)
Yes
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Supply Current
1.6 mA
Maximum Power Dissipation
1667 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Efficiency
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The MAX8647 is shutdown when all LEDs are turned off
through the I
active and ready to receive a command.
Figure 1. Block Diagram and Application Circuit
2.7V TO 5.5V
V
1μF
IN
C1
Six White/RGB LEDs in 3mm x 3mm Thin QFN
2
IN
GND
V
SCL (ENB)
SDA (ENC)
DD
C port. In shutdown, the I
(ENA)
_______________________________________________________________________________________
SERIAL PULSE
AND CONTROL
INTERFACE
I
( ) ARE FOR THE MAX8648
2
C OR
MAX8647
MAX8648
C1P
Shutdown Mode
1μF
Ultra-Efficient Charge Pumps for
C3
SHUTDOWN
CURRENT
CONTROL
THERMAL
SOURCE
CHARGE PUMP
OSCILATOR
C1N
INVERTING
2
C port is still
1MHz
C2P
BIAS
1μF
C2
C2N
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
REGULATOR
CURRENT
CURRENT
CURRENT
CURRENT
CURRENT
CURRENT
The MAX8648 is shutdown when all three EN_ are held
low for 4ms or longer. In shutdown, NEG is pulled to
GND with a 10kΩ internal resistor.
SEL
MIN
LED1
LED2
LED3
LED4
LED5
LED6
NEG
EP
TP7
V
IN
C4
1μF
9