MAX8648ETE+ Maxim Integrated Products, MAX8648ETE+ Datasheet - Page 6
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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
Ultra-Efficient Charge Pumps for
Six White/RGB LEDs in 3mm x 3mm Thin QFN
(V
6
IN
30
25
20
15
10
_______________________________________________________________________________________
5
0
= 3.6V, V
-40
LED CURRENT vs. TEMPERATURE
-15
EN_
I
I
V
LED5
LED6
EN_
V
V
I
I
IN
IN
TEMPERATURE (°C)
IN
IN
= V
10
IN
(V
, circuit of Figure 1, T
LINE-TRANSIENT RESPONSE
STARTUP AND SHUTDOWN
IN
35
= 4.3V TO 3.8V TO 4.3V)
(MAX8648)
60
1ms/div
1ms/div
85
ENA = ENB = ENC
MAX8647/48 toc16
MAX8647/48 toc18
A
I
V
LED
I
IN
IN
= +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
1x MODE OPERATING WAVEFORMS
200mA/div
200mA/div
24mA
20mA/div
2V/div
AC-COUPLED
20mV/div
0A
2V/div
0A
4.3V
3.8V
0A
(V
400ns/div
IN
= 4V)
ALL LEDs ON
I
LED
MAX8647/48 toc14
TOTAL I
= 24mA
V
LED5
I
LED6
EN_
V
I
IN
IN
100mA/div
0A
20mA/div
0A
AC-COUPLED
100mV/div
LINE-TRANSIENT RESPONSE WITH MODE
CHANGE (V
SINGLE-WIRE PULSE DIMMING
I
LED
V
I
IN
IN
IN
(MAX8648)
= 3.8V TO 3.4V TO 3.8V)
1.5x MODE OPERATING WAVEFORMS
10ms/div
1ms/div
OPERATING IN 1x
MODE, ALL 6 LEDs
OPERATING
MAX8647/48 toc17
(V
MAX8647/48 toc19
400ns/div
IN
= 3V)
20mA/div
0A
5V/div
200mA/div
24mA
20mA/div
3.8V
3.4V
0mA
ALL LEDs ON
I
LED
MAX8647/48 toc15
= 24mA
100mA/div
20mA/div
0A
AC-COUPLED
100mV/div
0A