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MP3312LGC-Z

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
MP3312L
2.7V-5.5V Input , 38V OVP,
Dual-Channel White LED Driver
MP3312L Rev. 1.0 www.MonolithicPower.com 1
8/11/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP3312L is a dual-channel, step-up WLED
driver with an integrated 40V MOSFET. It
supports a 2.7V to 5.5V power supply input and
uses peak current mode to regulate the LED
current, which is set by an external resistor.
The MP3312L employs a 600kHz fixed switching
frequency. It supports both PWM input analog
dimming and digital analog dimming to regulate
the dimming current accurately.
The MP3312L integrates a current source to
balance the LED current, which leads to good
ILED matching and accuracy performance.
In addition, the MP3312L has both LED open and
short protection, cycle-by-cycle current limit
protection, and thermal shutdown protection. It is
available in a tiny WLCSP1.35x1.35-9mm
package.
FEATURES
• 2.7V~5.5V Input Voltage
• 600kHz Switching Frequency
• Dual Channels Support up to 30mA/String
• 1% Current Matching between LED Channels
• +/-2% Current Accuracy
• 38V OVP
• PWM Input Analog Dimming Mode
• 5kHz to100kHz PWM Input Analog Dimming
• 1-Wire Interface for Digital Dimming
• 9-Bit Dimming Resolution
• Internal Soft Start to Reduce Inrush Current
• Available in WLCSP1.35x1.35-9mm Package
APPLICATIONS
• Feature Phones and Smart Phones
• Tablets
• GPS Receivers
• <10 Inch LCD Video Displays with One-Cell
Li-Ion Battery
A
ll MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. Fo
r
MPS green status, please visit the MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are registered trademarks o
f
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
87.8
88
88.2
88.4
88.6
88.8
89
89.2
89.4
89.6
89.8
2.5 3 3.5 4 4.5 5 5.5 6
MP3312L － 2.7V-5.5V INPUT, 38V OVP, DUAL-CHANNEL WHITE LED DRIVER
MP3312L Rev. 1.0 www.MonolithicPower.com 2
8/11/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Number* Package Top Marking
MP3312LGC WLCSP1.35x1.35-9mm
See Below
* For Tape & Reel, add suffix –Z (e.g. MP3312LGC–Z)
TOP MARKING
DM: Product code of MP3312LGC
Y: Year code
LLL: Lot number
PACKAGE REFERENCE
Package Diagram
WLCSP1.35x1.35-9mm
ABSOLUTE MAXIMUM RATINGS
(1)
V
IN
.................................................. -0.3V to +6V
V
SW
…………………………………....-1V to +40V
V
LED1,
V
LED2
………………………...-0.3V to +40V
All other pins ................................. –0.3V to +6V
Junction temperature ............................... 150°C
Lead temperature .................................... 260°C
Continuous power dissipation (T
A
= 25°C)
(2)
WLCSP1.35x1.35-9mm ........................... 1.04W
Recommended Operating Conditions
(3)
Supply voltage (V
IN
) ....................... 2.7V to 5.5V
Operating junction temp. .......... -40°C to +125°C
Thermal Resistance
(4)
θ
JA
θ
JC
WLCSP1.35x1.359mm....…………120…..12..°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 produce an excessive die temperature,
causing the regulator to go into thermal shutdown. Internal
thermal shutdown circuitry protects the device from
permanent damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MP3312L － 2.7V-5.5V INPUT, 38V OVP, DUAL-CHANNEL WHITE LED DRIVER
MP3312L Rev. 1.0 www.MonolithicPower.com 3
8/11/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
V
IN
= 3.7V, V
EN
= V
PWM
= high, typical values are at T
A
= 25°C, unless otherwise noted.
Parameters Symbol Condition Min Typ Max Unit
Power Supply
Operating input voltage V
IN
2.7 5.5 V
Supply current (quiescent) I
Q
V
IN
= 3.7V, V
EN
= V
PWM
= high,
no load with switching
1 2 mA
Supply current (shutdown) I
ST
V
EN
= 0V, V
IN
= 3.7V 1 A
Input UVLO threshold V
IN_UVLO
Rising edge 2.4 2.6 V
Input UVLO hysteresis 200 mV
Oscillator
Switching frequency f
SW
500 600 720 kHz
Maximum duty cycle D
MAX
93 95 %
Minimum on time
(5)
T
ON_MIN
100 ns
Power Switch
Main switch on resistance R
DSON_M
VIN = 3.7V 0.2
Error Amplifier
Error amplifier transconductance gm 370 µS
Max sink/source current
42 A
Current Regulation
VLEDx regulation voltage V
REG
ILED1 = ILED2 = 20mA 240 mV
ISET voltage V
ISET
1.207 1.232 1.247 V
Current multiplier K
ISET
1020
Current accuracy
I
ISET
= 20µA,
(|I
MIN
-I
ISET
|/I
ISET
,|I
MAX
-I
ISET
|/
I
ISET
)
-2 2 %
Current matching
I
ISET
= 20µA,
(I
MA
X
–I
MIN
) /I
VG
1 2 %
Current sink max output current
30 mA
EN & PWM Logic
PWM input high threshold V
PWM_HI
V
PWM
rising 1.2 V
PWM input low threshold V
PWM_LO
V
PWM
falling 0.4 V
EN high voltage V
EN_HIGH
V
EN
rising 1.2 V
EN low voltage V
EN_LOW
V
EN
falling 0.4 V
EN & PWM pull-down resistor R
PD
800 k
EN low logic
to shutdown time
T
SD_EN
EN high to low 2.5 ms
PWM low logic
to shutdown time
T
SD_PWM
PWM high to low 20 ms
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MP3312LGC-Z

Mfr. #:
Buy MP3312LGC-Z
Manufacturer:
Monolithic Power Systems (MPS)
Description:
LED Lighting Drivers 2.7V-5.5V 2-Channel WLED Driver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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