MP1523 – PRECISION 6-LAMP WHITE LED DRIVER
INITIAL RELEASE
PACKAGE REFERENCE
TOP VIEW
SW
GND
FB
1
5
BIAS
ABSOLUTE MAXIMUM RATINGS
(1)
BIAS ............................................... -0.3V to 28V
SW .................................................. -0.5V to 28V
All Other Pins.................................... -0.3V to 6V
Storage Temperature ...............-55°C to +150°C
A3XX
4
EN
MP1523_PD01-SOT23-5
2
3
Recommended Operating Conditions
(2)
BIAS Supply Voltage ....................... 2.7V to 25V
Output Voltage....................................V
IN
to 25V
Operating Temperature ..............-40°C to +85°C
Thermal Resistance
(3)
Part Number*
MP1523DT
EV0035
*
Package
SOT23-5
Temperature
-40°C to +85°C
Evaluation Board
Θ
JA
(SOT23-5) ..................................... 220°C/W
Θ
JC
(SOT23-5) ..................................... 110°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.
For Tape & Reel, add suffix –Z (eg. MP1523DT–Z)
For Lead Free, add suffix –LF (eg. MP1523DT–LF–Z)
ELECTRICAL CHARACTERISTICS
(4)
V
BIAS
= V
EN
= 5.0V, T
A
= 25°C, unless otherwise noted.
Parameter
Supply Current (shutdown)
Supply Current (quiescent)
Minimum Off Time, Normal
Operation
Minimum Off Time, Start-Up
Undervoltage Lockout
BIAS Under Voltage Lockout
Open Lamp Shutdown Threshold
Enable
EN Threshold
EN Hysteresis
EN Input Bias Current
Feedback Comparator
FB Regulation Threshold
FB Hysteresis
(5)
FB Input Bias Current
Output Switch
SW On-Resistance
(5)
SW Current Limit
SW Voltage
Thermal Shutdown
(5)
Thermal Shutdown Hysterisis
(5)
Notes:
4) First 64 pulses after EN switches high.
5) Guaranteed by design.
Symbol
I
BIAS (OFF)
I
BIAS (ON)
T
OFF
T
OFF
UVLO
Condition
V
EN
= 0V
V
FB
= 0.45V
V
FB
= 0V
V
FB
= 0V
(4)
V
BIAS
Rising, 100mV Hysteresis
V
BIAS
Rising
V
EN
Rising
V
EN
= 0V, 5V
V
FB
Falling
V
FB
= 0.2V
Min
Typ
1
650
550
1.6
2.3
28
1.1
60
Max
3
750
700
Units
µA
µA
ns
µs
300
1.25
2.1
2.65
V
V
V
mV
µA
mV
mV
nA
Ω
mA
V
°C
°C
0.8
1.5
1
380
-150
400
10
-80
0.5
450
160
15
420
R
ON
BV
I
SW
= 10µA
300
25
0.6
650
07/04, Rev. 1.6
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