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MP3309CGQG-Z

P1-P3P4-P6P7-P9P10-P12P13-P13
MP3309 2.7V-5.5V INPUT, 35V OUTPUT, f
s
-PROGRAMMABLE, WHITE LED DRIVER WITH I
2
C INTERFACE
MP3309 Rev. 1.01 www.MonolithicPower.com 4
5/14/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (continued)
V
IN
=3.6V, V
EN
= V
IN
, T
A
= 25°C, unless otherwise noted.
Parameters Symbol Condition Min Typ Max Units
OVP UVLO Threshold V
OVP_UV
1.24 V
Thermal Shutdown Threshold t
ST
150 °C
Thermal Shutdown Hysteresis
25 °C
I
2
C Interface Specifications
Input Logic Low V
IL
0 0.4 V
Input Logic High V
IH
1.3V V
Output Logic Low V
OL
ILOAD=3mA 0.4 V
SCL Clock Frequency f
SCL
400 kHz
SCL High Time t
HIGH
0.6 s
SCL Low Time t
LOW
1.3 s
Data Setup Time t
SU,DAT
100 ns
Data Hold Time t
HD,DAT
0 0.9 s
Setup Time for Repeated Start t
SU,STA
0.6 s
Hold Time for Start t
HD,STA
0.6 s
Bus Free Time between a Start
and a Stop Condition
t
BUF
1.3 s
Setup Time for Stop Condition t
SU,STO
0.6 s
Rise Time of SCL and SDA t
R
20+0.1
×C
B
120 ns
Fall Time of SCL and SDA t
F
20+0.1
×C
B
120 ns
Pulse Width of Suppressed Spike t
SP
0 50 ns
Capacitance Bus for Each Bus
Line
C
B
400 pF
I
2
C Compatible Interface Timing Diagram
MP3309 2.7V-5.5V INPUT, 35V OUTPUT, f
s
-PROGRAMMABLE, WHITE LED DRIVER WITH I
2
C INTERFACE
MP3309 Rev. 1.01 www.MonolithicPower.com 5
5/14/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 3.6V, 8 LEDs, ILED=20mA, L = 10µH, T
A
= 25°C, unless otherwise noted.
MP3309 2.7V-5.5V INPUT, 35V OUTPUT, f
s
-PROGRAMMABLE, WHITE LED DRIVER WITH I
2
C INTERFACE
MP3309 Rev. 1.01 www.MonolithicPower.com 6
5/14/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
PIN FUNCTIONS
Pin # Name Description
1 SDA
I
C Data Input. For MP3309, connect the SCL(PWMH) and SDA(PWMH) pins together
as one PWM signal input for analog dimming. >20kHz PWM signal is recommended
input for analog dimming.
2 VIN
Input Supply Pin. Provides power for internal power and logic circuits. Must be locally
bypassed.
3 EN/PWML
PWM Brightness Control/Enable. Apply a PWM signal for PWM dimming. The PWM
duty is proportional to the LED current dimming —a lower dimming duty results in a
smaller dimming current. For most applications, use a frequency range of 200Hz to
2kHz. A low-level signal longer than 20ms will shutdown the IC.
4 RFEQ
Switching Frequency Set. Connect a resistor between this pin and GND to program
the converter switching frequency. Do not leave this pin floating.
5 FB
LED Current Feedback. Regulates the voltage across the current sense resistor
between FB and GND to 200mV.
6 GND Ground.
7 SW
Power Switch Node. Drain of the internal low-side MOSFET. Connect the power
inductor between SW and VIN pin. For non-synchronous mode, connect a Schottky
diode between this pin and VOUT.
8 VOUT
Output Voltage. Internally connected to the source of the synchronous MOSFET. For
non-synchronous mode, connect a Schottky diode between SW pin and this pin. .
9 BST
Booststrap. Connect a capacitor between SW and BST pin to provide the synchronous
MOSFET gate driver.
10 SCL
I
C Interface Clock Signal. For MP3309 connect the SCL and SDA pins together as
PWM input for analog LED dimming. >20kHz PWM signal is recommended.
P1-P3P4-P6P7-P9P10-P12P13-P13

MP3309CGQG-Z

Mfr. #:
Buy MP3309CGQG-Z
Manufacturer:
Monolithic Power Systems (MPS)
Description:
LED Lighting Drivers 2.7-5.5Vin, 1.5A Synchron Boost WLED
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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