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MP3214DQ-LF-P

P1-P3P4-P6P7-P9
MP3214
500mA LED Camera Flash
Charge Pump
MP3214 Rev. 1.01 www.MonolithicPower.com 1
6/24/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP3214 is a low noise, high current charge
pump designed to drive LEDs at up to 500mA
with an input supply of 2.7 to 5.5 volts. The high
efficiency and low external parts count (two
small bypass caps, two small charge pump
caps, and one programming resistor) make the
MP3214 ideally suited for portable applications
where small size and high efficiency are critical.
The MP3214 controls the inrush current via a
soft start algorithm. High frequency switching of
the charge pump capacitors allows for very
small capacitance values.
The output current is set by an external resistor,
R
SET
. The brightness of the LED can be
modulated by a PWM on the enable pin.
The MP3214 automatically adjusts the
switching mode of the charge pump for optimal
efficiency.
The MP3214 is available in a 16 pin 3x3mm
QFN package.
FEATURES
• High Efficiency
• Up to 500mA Output Current
• Wide Supply Range of 2.7V to 5.5 V
• Small Solution Size
• Soft Start
• Low Shutdown Current
• Open/Short Led Protection
• No Inductors
• Programmable Output Current
• PWM Brightness Control
APPLICATIONS
• LED Backlight
• LED Flash
• LED Torch/Flashlight
• Cell Phones, Cameras, PDA, and Handheld
Equipment
For MPS green status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks o
f
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP3214 – 500mA LED CAMERA FLASH CHARGE PUMP
MP3214 Rev. 1.01 www.MonolithicPower.com 2
6/24/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Number* Package Top Marking Free Air Temperature (T
A
)
MP3214DQ
QFN16 (3 x 3mm)
2F
-40°C to +85°C
* For Tape & Reel, add suffix –Z (g. MP3214DQ–Z).
For RoHS compliant packaging, add suffix –LF (e.g. MP3214DQ–LF–Z)
PACKAGE REFERENCE
TOP VIEW
EXPOSED PAD
CONNECT TO PIN 5, 9
PIN 1 ID
CP
C2B
C1B
C1A
NC
ISET
TOE
GND
1
2
3
4
13141516
8765
EN
VINC2AGND
NCIOUTIOUTNC
12
11
10
9
ABSOLUTE MAXIMUM RATINGS
(1)
All Other Pins...............................-0.3V to +6.5V
Continuous Power Dissipation (T
A
= +25°C)
(2)
………………………………………………....2.1W
Junction Temperature...............................150°C
Lead Temperature ....................................260°C
Storage Temperature............... -65°C to +150°C
Supply Voltage VIN............................2.5V to 6V
Recommended Operating Conditions
(2)
Supply Voltage V
IN
..........................2.7V to 5.5V
Maximum Junction Temp. (T
J
) ................+125°C
Thermal Resistance
(3)
θ
JA
θ
JC
QFN16 (3 x 3mm) ...................60 ...... 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 θ
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by P
D
(MAX) = (T
J
(MAX)-T
A
)/θ
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 permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MP3214 – 500mA LED CAMERA FLASH CHARGE PUMP
MP3214 Rev. 1.01 www.MonolithicPower.com 3
6/24/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
V
BATT
= 3.6V, C1=C2=2.2μF, COUT=4.7μF, C
BYPASS
=1μF, T
A
= +25°C, unless otherwise noted.
Parameter Symbol Condition Min Typ Max Units
Input Supply Voltage V
IN
2.7 5.5 V
Supply Current I
IN
3 mA
Shutdown Current I
SHUTDOWN
0.1 µA
I
LED
Drop Out Voltage 0.3 V
LED Current Turn On Delay 4 µs
Clock Frequency 1.35 MHz
En Threshold High 0.81 V
En Threshold Low 0.75 V
I
OUT
Gain Accuracy I
OUT
Measured with R
SET
=17.8k 186 202 218 mA
Gain Coefficient I
OUT
=Gain/R
SET
-8% 3600 +8% V
Thermal Shutdown 150
°C
Note:
5) Current matching definition: (Max – Min)/(Max + Min)
6) Guaranteed by design.
P1-P3P4-P6P7-P9

MP3214DQ-LF-P

Mfr. #:
Buy MP3214DQ-LF-P
Manufacturer:
Monolithic Power Systems (MPS)
Description:
LED Lighting Drivers 500mA LED Camera Flash Charge Pump
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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