TM
MP1519 – 1X, 1.5X, 2X CHARGE PUMP 4 WHITE LED DRIVER
PACKAGE REFERENCE
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
TOP VIEW
LED3 LED2 LED1 BATT
PIN 1 ID
16
15
14
13
LED4
NC
1
2
3
4
12 EN
11 RADJ
10 GND
GND
C1A
9
C2B
Thermal Resistance (3)
3x3 QFN16 .............................60...... 14... °C/W
θJA
θJC
5
6
7
8
BATT C2A C1B LEDC
EXPOSED PAD
CONNECT TO PIN 8
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
Part Number*
Package
Temperature
QFN16
(3mm x 3mm)
MP1519DQ
–40°C to +85°C
3) Measured on approximately 1” square of 1 oz copper.
For Tape & Reel, add suffix –Z (eg. MP1519DQ–Z)
For RoHS Compliant Packaging, add suffix –LF
(eg. MP1519DQ–LF–Z)
*
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
ILED = 20mA, VBATT Decreasing,
VBATT at 1x to 1.5x Mode Switch
VBATT at 1.5x to 2x Mode Switch
VBATT at 2x to 1.5x Mode Switch
VBATT at 1.5x to 1x Mode Switch
Supply Current
VBATT 1x-1.5x
VBATT 1.5x-2x
VBATT 2x-1.5x
VBATT 1.5x-1x
IBATT
3.6
2.8
3.1
3.8
164
V
V
LED = 3.35V @ 20mA
ILED = 20mA, VBATT Decreasing,
LED = 3.35V @ 20mA
VBATT Increasing,
LED = 3.35V @ 20mA
V
V
V
V
VBATT Increasing,
VLED = 3.35V @ 20mA
4 LEDs at 20mA, 2x Mode,
V
180
mA
VBATT = 2.5V
Supply Current Shutdown
Current Matching (4)
Enable Voltage, High
Enable Voltage, Low
Enable Pin Leakage
Charge Pump Frequency
Time to Standby Mode (5)
Enable Pin PWM Frequency Limit
LED Current
IBATT SHDN VEN = 0V
ILED MATCH ILED = 20mA
VEN (HIGH)
0.1
1.5
2.0
1.0
0.1
1.3
30
1
5.0
2.2
µA
%
V
VEN (LOW)
0.8
1.0
V
IEN
FCP
VEN = 5V
VBATT = 3.3V
1
1.6
µA
MHz
µs
KHz
mA
TOFF
FHPWM
ILED
Enable Switched Low
50
20
RSET = 1.54kΩ
18
22
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
7/27/2006
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