MP3305 MPS, MP3305 Datasheet - Page 5

• Manufacturer Part Number: MP3305
• Description: 36v, 1.3a, Step-up White Led Driver With High Frequency True Pwm Dimming & Adjust Ovp
• Manufacturer: MPS

TYPICAL PERFORMANCE CHARACTERISTICS
V
MP3305 Rev. 0.9
12/18/2009
200mA/div
100mA/div
IN
10V/div
10V/div
= 5V, I
5V/div
5V/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.
MP3305 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING & ADJUST OVP
4 4.5
V
IN
(V)
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
5 5.5
6 6.5
100mA/div
10V/div
5V/div
5V/div
© 2009 MPS. All Rights Reserved.
V
I
OUT
LED
SW
EN
www.MonolithicPower.com
200
180
160
140
120
100
80
60
40
20
0
Enable Shutdown
0
PWM Dimming Duty vs.
WLED Current
PWM DIMMING DUTY (%)
20
40
20kHz
50kHz
60
80
250Hz
1kHz
100
V
100mV/div
I
500mA/div
200mA/div
INDUCTOR
OUT
50mV/div
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