MP1519DQ データシートの表示（PDF） - Monolithic Power Systems
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MP1519DQ Datasheet PDF : 8 Pages
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TM
MP1519 – 1X, 1.5X, 2X CHARGE PUMP 4 WHITE LED DRIVER
PACKAGE REFERENCE
PIN 1 ID
TOP VIEW
LED3 LED2 LED1 BATT
16 15 14 13
LED4 1
12 EN
NC 2
11 RADJ
GND 3
10 GND
C1A 4
9 C2B
5678
BATT C2A C1B LEDC
EXPOSED PAD
CONNECT TO PIN 8
Part Number*
MP1519DQ
Package
QFN16
(3mm x 3mm)
Temperature
–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
Current Matching (4)
IBATT SHDN VEN = 0V
ILED MATCH ILED = 20mA
0.1
1
µA
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
Time to Standby Mode (5)
FCP
TOFF
VBATT = 3.3V
Enable Switched Low
1.0 1.3 1.6 MHz
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.
MP1519 Rev. 1.9
www.MonolithicPower.com
2
7/27/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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