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MP1519 Datasheet(PDF) 2 Page - Monolithic Power Systems

Part No. MP1519
Description  1x, 1.5x, 2x High Efficiency Charge Pump 4 White LED Driver
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Maker  MPS [Monolithic Power Systems]
Homepage  http://www.monolithicpower.com
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MP1519 Datasheet(HTML) 2 Page - Monolithic Power Systems

   
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MP1519 – 1X, 1.5X, 2X CHARGE PUMP 4 WHITE LED DRIVER
MP1519 Rev. 1.9
www.MonolithicPower.com
2
7/27/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
TM
PACKAGE REFERENCE
Part Number*
Package
Temperature
MP1519DQ
QFN16
(3mm x 3mm)
–40
°C to +85°C
* For Tape & Reel, add suffix –Z (eg. MP1519DQ–Z)
For RoHS Compliant Packaging, add suffix –LF
(eg. MP1519DQ–LF–Z)
ABSOLUTE MAXIMUM RATINGS
(1)
VBATT to GND .............................................. 6.5V
Power Dissipation (QFN)........................... 1.0W
Logic Inputs to GND ................... –0.3V to +6.5V
Storage Temperature ..............–65
°C to +150°C
Junction Temperature...............................150
°C
Recommended Operating Conditions
(2)
Input Voltage VBATT...................... 2.5V to 5.5V
Operating Temperature .............–40
°C to +85°C
Thermal Resistance
(3)
θJA
θJC
3x3 QFN16 ............................. 60 ...... 14...
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
VBATT = 5V, TA = +25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Input Supply Voltage
VBATT
2.5
5.5
V
VBATT at 1x to 1.5x Mode Switch
VBATT 1x-1.5x
ILED = 20mA, VBATT Decreasing,
VLED = 3.35V @ 20mA
3.6
V
VBATT at 1.5x to 2x Mode Switch
VBATT 1.5x-2x
ILED = 20mA, VBATT Decreasing,
VLED = 3.35V @ 20mA
2.8
V
VBATT at 2x to 1.5x Mode Switch
VBATT 2x-1.5x
VBATT Increasing,
VLED = 3.35V @ 20mA
3.1
V
VBATT at 1.5x to 1x Mode Switch
VBATT 1.5x-1x
VBATT Increasing,
VLED = 3.35V @ 20mA
3.8
V
Supply Current
IBATT
4 LEDs at 20mA, 2x Mode,
VBATT = 2.5V
164
180
mA
Supply Current Shutdown
IBATT SHDN VEN = 0V
0.1
1
µA
Current Matching
(4)
ILED MATCH ILED = 20mA
1.5
5.0
%
Enable Voltage, High
VEN (HIGH)
2.0
2.2
V
Enable Voltage, Low
VEN (LOW)
0.8
1.0
V
Enable Pin Leakage
IEN
VEN = 5V
0.1
1
µA
Charge Pump Frequency
FCP
VBATT = 3.3V
1.0
1.3
1.6
MHz
Time to Standby Mode
(5)
TOFF
Enable Switched Low
30
µs
Enable Pin PWM Frequency Limit
FHPWM
50
KHz
LED Current
ILED
RSET = 1.54kΩ
18
20
22
mA
Notes:
4) Matching is defined as the difference of the maximum to minimum current divided by the sum of the maximum and minimum currents.
5) Standby mode switches to shutdown when the output voltage on LEDC drifts back to GND.
TOP VIEW
EXPOSED PAD
CONNECT TO PIN 8
PIN 1 ID
LED4
NC
GND
C1A
EN
RADJ
GND
C2B
1
2
3
4
13
14
15
16
8
7
6
5
LEDC
C1B
C2A
BATT
BATT
LED1
LED2
LED3
12
11
10
9


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