MAX8630WETD20+T Maxim Integrated Products, MAX8630WETD20+T Datasheet - Page 4

• Manufacturer Part Number: MAX8630WETD20+T
• Description: IC LED DRVR WHITE BCKLGT 14-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX8630WETD20+T

• Constant Current: Yes
• Topology: PWM, Switched Capacitor (Charge Pump)
• Number Of Outputs: 5
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 14-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 25mA
• Internal Switch(s): Yes
• Efficiency: 93%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

125mA 1x/1.5x Charge Pumps for 5 White LEDs
in 3mm x 3mm TDFN
(V
4
IN
160
140
120
100
80
60
40
20
_______________________________________________________________________________________
= 3.6V, ENM = ENS = IN, T
0
2.7
INPUT CURRENT vs. INPUT VOLTAGE
I
I
LED
I
LED
LED
= 1.875mA
= 8.125mA
= 20mA
3.0
DRIVING 2 SUB LEDs
V
OUT
V
INPUT VOLTAGE (V)
I
IN
IN
2.80
2.70
2.60
2.50
2.40
2.30
2.20
2.10
2.00
3.3
1x MODE OPERATING WAVEFORMS
2.7
LED CURRENT MATCHING vs. INPUT
3.6
3.1
VOLTAGE (2.5mA/LED)
V
IN
3.5
(V
A
INPUT VOLTAGE (V)
FALLING
3.9
IN
= +25°C, unless otherwise noted.)
1μs/div
= 4.0V)
3.9
4.2
4.3
MAX8630W/X toc09
4.7
140
120
100
Typical Operating Characteristics (continued)
80
60
40
20
5.1
0
2.7
INPUT RIPPLE VOLTAGE vs. SUPPLY
200mV/div
(AC-COUPLED)
200mV/div
(AC-COUPLED)
100mA/div
20mA/LED
2mA/LED
8mA/LED
5.5
VOLTAGE DRIVING 5 WHITE LEDs
15mA/LED
INPUT VOLTAGE (V)
3.2
V
OUT
V
I
IN
IN
140
120
100
1.5x MODE OPERATING WAVEFORMS
80
60
40
20
3.7
0
-40
OUTPUT CURRENT vs. TEMPERATURE
-15
(5 LEDs AT 25mA EACH)
(V
4.2
IN
TEMPERATURE (°C)
1μs/div
= 3.6V)
10
TEMPERATURE
DERATING
28
27
26
25
24
23
22
21
20
35
2.7
MAX8630W/X toc10
LED CURRENT MATCHING vs. INPUT
3.1
60
VOLTAGE (25mA/LED)
3.5
200mV/div
(AC-COUPLED)
200mV/div
(AC-COUPLED)
100mA/div
INPUT VOLTAGE (V)
85
3.9
4.3
4.7
5.1
5.5