MP3304 MPS, MP3304 Datasheet - Page 5

• Manufacturer Part Number: MP3304
• Description: The Future Of Analog Ic Technology
• Manufacturer: MPS

TYPICAL PERFORMANCE CHARACTERISTICS
V
MP3304 Rev. 0.91
4/19/2010
100mA/div
100mA/div
IN
10V/div
10V/div
= 5V, I
2V/div
2V/div
5V/div
V
V
I
I
OUT
OUT
LED
LED
SW
SW
EN
100
90
80
70
60
50
3 3.5
V
Enable Startup
LED
Open Load Protection
IN
vs. Efficiency
= 200mA, 3WLEDs 10Strings, unless otherwise noted.
MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING
4 4.5
V
IN
(V)
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
5 5.5
6 6.5
100mA/div
10V/div
2V/div
2V/div
© 2010 MPS. All Rights Reserved.
V
I
OUT
LED
SW
EN
www.MonolithicPower.com
200
180
160
140
120
100
80
60
40
20
0
0
Enable Shutdown
PWM Dimming Duty vs.
WLED Current
PWM DIMMING DUTY (%)
20
40
20kHz
60
50kHz
80
250Hz
1kHz
100
V
I
200mV/div
500mA/div
INDUCTOR
100mA/div
50mV/div
OUT
10V/div
10V/div
5V/div
2V/div
V
PWM
(AC)
I
OUT
SW
LED
SW
FB
PWM Dimming
f
Steady State Operation
PWM
=50kHz, DPWM=50%
400ns/div
5