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MP3309CGQG-Z

P1-P3P4-P6P7-P9P10-P12P13-P13
MP3309
2.7V-5.5V Input, 35V Output
White LED Driver With I
2
C Interface
MP3309 Rev. 1.01 www.MonolithicPower.com 1
5/14/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP3309 is a WLED step-up converter for
2.7V-to-5.5V input that uses peak-current mode
to regulate the LED current sensed through an
external, low-side resistor. The 200mV
feedback voltage and synchronous rectification
reduces power loss and reduces PCB space
requirements. For non-synchronous mode,
setting an internal register can disable the
rectifier MOSFET to save driver losses.
The MP3309 features a programmable
switching frequency to optimize efficiency. It
supports both analog and PWM dimming.
In addition, the MP3309 has LED open
protection, cycle-by-cycle current limit
protection, Under voltage protection and
thermal shutdown protection -. The I
2
C interface
can set the protection indication bits and over-
voltage protection point.
FEATURES
• 2.7V-to-5.5V Input Voltage
• Analog and PWM Dimming
• Selectable Synchronous or Non-
synchronous Mode
• 400kHz I
2
C-Compatible Interface
• Digitally-Set LED Current
• Programmable Switching Frequency
• Programmable Over VoltageProtection
Point
• Low 200mV Feedback Voltage with ±1%
• Software- or Hardware-Enable Function
• Internal Soft Start
• UVLO, Thermal Shutdown, OCP
• Available in a 1.4mm ×1.8mm QFN-10
package
MP3309—Default Analog Dimming (PWMH) by
external PWM signal input
MP3309C—Default I
2
C Interface
APPLICATIONS
• Feature Phones and Smart Phones
• Tablets
• <10inchVideo Displays
A
ll MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
Typical Application Circuit
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 2
5/14/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Numbe
r
Package Top Marking
MP3309GQG*
QFN-10 (1.4mm×1.8mm) BM
MP3309CGQG QFN-10 (1.4mm×1.8mm) CJ
* For Tape & Reel, add suffix –Z (e.g. MP3309GQG–Z);
** For Tape & Reel, add suffix –Z (e.g. MP3309CGQG–Z);
PACKAGE REFERENCE
TOP VIEW
QFN-10 (1.4mm×1.8mm)
ABSOLUTE MAXIMUM RATINGS
(1)
V
IN
.................................................. -0.3V to +6V
V
SW
, V
OUT
…………………………..…-1V to +40V
V
BST
........................................ -0.3V to V
SW
+6V
All Other Pins ................................ –0.3V to +6V
Junction Temperature .............................. 150°C
Lead Temperature ................................... 260°C
Continuous Power Dissipation (T
A
= 25°C)
(2)
................... ................... ........................0.892W
Recommended Operating Conditions
(3)
Supply Voltage V
IN
......................... 2.7V to 5.5V
Operating Junction Temp. (T
J
). -40°C to +125°C
Thermal Resistance
(4)
θ
JA
θ
JC
QFN-10 (1.4mm×1.8mm) ..... 140 ...... 30 °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation a
t
any ambient temperature is calculated by P
D
(MAX) = (T
J
(MAX)-T
A
)/
JA
. Exceeding the maximum allowable powe
r
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanen
t
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
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 3
5/14/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
V
IN
=3.6V, V
EN
= V
IN
, T
A
= 25°C, unless otherwise noted.
Parameters Symbol Condition Min Typ Max Units
STEP-UP CONVERTER
Operating Input Voltage V
IN
2.7 5.5 V
Supply Current (Quiescent) I
Q
V
IN
=3.6V, V
EN
= V
IN
, no
load with switching
420 A
Supply Current (Shutdown) I
ST
V
EN
=0V, V
IN
=3.6V 1 A
EN Bit=0, V
IN
=3.6V 68 A
Input UVLO Threshold V
IN_UVLO
Rising Edge 2.5 V
Input UVLO Hysteresis 200 mV
EN High Voltage V
EN_HIGH
V
EN
Rising 1.2 V
EN Low Voltage V
EN_LOW
V
EN
Falling 0.4 V
Switching Frequency f
SW
R
OSC
= 200k 540 640 740 kHz
Maximum Duty Cycle D
MAX
Sync Mode, 600kHz 89 93 %
Non-sync Mode,
600kHz
90 95
Feedback Regulation Voltage
V
REF
198 200 202 mV
VREF Ramp-Up Time
t
STEP
320
s
POWER SWITCH
Main Switch On-Resistance
R
DSON_M
VIN=3.6V 0.3 0.5
Sync Switch On-Resistance
R
DSON_S
VIN=3.6V 0.5 0.8
CURRENT DIMMING
PWMH Input Low Threshold V
PWM_LO
V
PWM
Falling 0.4 V
PWMH Input High Threshold V
PWM_HI
V
PWM
Rising 1.2 V
PWML Shutdown Time t
SD
EN/PWML High to Low 20 ms
PROTECTION
OVP Voltage V
OVP
OVP0=0,OVP1=1(Defa
ult)
33.5
35.5
37.5
V
Hysteresis 2.5
OVP0=1,OVP1=0 22.5 24 25.5 V
Hysteresis 2
OVP0=0,OVP1=0 12.5 13.5 14.5 V
Hysteresis 1
Cycle-Cycle Current Limit I
LIM
OVP0=1,OVP1=0 1.5 A
Startup Current Limit I
LIM_START
Max Duty Cycle 0.8 A
Time Step for Half Current Limit T
LIM_HALF
5 ms
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:
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