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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 4
6/24/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
PIN FUNCTIONS
Pin # Name Description
1
CP
Charge pump bypass for common anode version. Connect a 2.2µF bypass capacitor to GND.
2
C2B
Charge Pump Capacitor #2 Negative Node. Connect the negative side of the #2 charge pump
capacitor to C2B.
3
C1B
Charge Pump Capacitor #1 Negative Node. Connect the negative side of the #1 charge pump
capacitor to C1B.
4
C1A
Charge Pump Capacitor #1 Positive Node. Connect the positive side of the #1 charge pump
capacitor to C1A. Typical applications require C1 to be 1µF.
5,9
GND
Battery Power Ground. Connect the exposed pad to this pin.
6
C2A
Charge Pump Capacitor #2 Positive Node. Connect the positive side of the #2 charge pump
capacitor to C2A. Typical applications require C2 to be 1µF.
7
VIN
Battery Power Input. Connect the 2.5V to 5.5V input source between BATT and GND. Bypass
BATT to GND with a 2.2µF or greater capacitor.
8
EN
Enable input.
10
TOE
Time Out Enable. With TOE=1 the time out is enabled. The device will keep operating for a
period of time after the EN pin goes low.
11
ISET
Current Control Input. Connect a resistor between ISET and GND to set the LED current up
to 500mA.
12,13,16
NC
No connection.
14,15
IOUT
Driver for Flashlight. Connect the flashlight LED between this pin and BATT, with the anode
at BATT.
BLOCK DIAGRAM
Figure 1—Functional Block Diagram
MP3214 – 500mA LED CAMERA FLASH CHARGE PUMP
MP3214 Rev. 1.01 www.MonolithicPower.com 5
6/24/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
100
150
200
250
300
350
400
450
500
550
0.02 0.04 0.06 0.08 0.1 0.12 0.14
1/RSET(1/KOHM)
I_FLASH(MA)
Measurement
30
2.0
3.0
4.0 5.0
6.0
40
50
60
70
80
90
100
V_BATTERY(V)
EFFICIENCY(%)
IFlash=100mA
IFlash=200mA
IFlash=300mA
IFlash=500mA
-0.25
-0.20
-0.15
-0.10
-0.05
0.0
2.5 2.9 3.3 3.7 4.1 4.5 4.9 5.3 5.7
V_BATTERY(V)
FLASH CURRENT VARIATION(%)
Flash Current Regulation vs.
Battery Voltage:
Efficiency
Average Flash Current vs.
Dimming Duty Cycle
10
30
50
70
90
110
130
150
170
190
210
230
10 20 30 40 50 60 70 80 90 100
DUTY CYCLE(%)
AVERAGE FLASH CURRENT(MA)
V_Battery=2.7V
V_Battery=3.5V
V_Battery=2.7V
V_Battery=3.5V
MP3214 – 500mA LED CAMERA FLASH CHARGE PUMP
MP3214 Rev. 1.01 www.MonolithicPower.com 6
6/24/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
Start up and Shut down
Start up at 1X Mode, V_BAT=4.2V
Start up and Shut down
Shut down at 1X Mode, V_BAT=4.2V
Start up and Shut down
Start up at 2X Mode, V_BAT=2.7V
Start up and Shut down
Shut down at 2X Mode, V_BAT=2.7V
Mode 1.5X to 1X retry
Start up and Shut down
Start up at 1.5X Mode, V_BAT=3.5V
Start up and Shut down
Shut down at 1.5X Mode, V_BAT=3.5V
V_C1A
2V/div
V_C1B
2V/div
V_C2A
2V/div
V_C2B
2V/div
V_C1A
2V/div
V_C1A
2V/div
V_C1B
2V/div
V_C1B
2V/div
V_C2A
2V/div
V_C2B
2V/div
V_CP
1V/div
EN
2V/div
I_Flash
200mA/div
V_CP
1V/div
EN
2V/div
I_Flash
200mA/div
V_CP
1V/div
EN
2V/div
I_Flash
200mA/div
V_CP
1V/div
V_CP
1V/div
EN
2V/div
I_Flash
200mA/div
V_CP
1V/div
EN
2V/div
I_Flash
200mA/div
V_CP
1V/div
EN
2V/div
I_Flash
200mA/div
I_BAT
500mA/div
Charge Pump
Vin=3.5V, I_LED =500mA, 1.5X mode
Charge Pump
Vin=2.7V, I_LED =500mA, 2.0X mode
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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