MP1523 – PRECISION 6-LAMP WHITE LED DRIVER
PACKAGE REFERENCE
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
Recommended Operating Conditions (2)
BIAS Supply Voltage ....................... 2.7V to 25V
Output Voltage....................................VIN to 25V
Operating Temperature ..............-40°C to +85°C
TOP VIEW
SW
GND
FB
1
2
3
5
BIAS
4
EN
Thermal Resistance (3)
MP1523_PD01-SOT23-5
Part Number*
MP1523DT
EV0035
Package
Temperature
-40°C to +85°C
ΘJA (SOT23-5) ..................................... 220°C/W
ΘJC (SOT23-5)..................................... 110°C/W
SOT23-5
Evaluation Board
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
For Tape & Reel, add suffix –Z (eg. MP1523DT–Z)
For Lead Free, add suffix –LF (eg. MP1523DT–LF–Z)
*
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS (4)
VBIAS = VEN = 5.0V, TA = 25°C, unless otherwise noted.
Parameter
Symbol Condition
Min
Typ
1
650
Max Units
Supply Current (shutdown)
Supply Current (quiescent)
IBIAS (OFF)
IBIAS (ON)
VEN = 0V
VFB = 0.45V
3
μA
μA
750
Minimum Off Time, Normal
Operation
TOFF
TOFF
VFB = 0V
300
550
1.6
700
ns
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)
VFB = 0V (4)
1.25
μs
UVLO
VBIAS Rising, 100mV Hysteresis
VBIAS Rising
2.1
0.8
2.3
28
2.65
V
V
VEN Rising
VEN = 0V, 5V
VFB Falling
VFB = 0.2V
1.1
60
1.5
1
V
mV
μA
380
400
10
-80
420
mV
mV
nA
FB Input Bias Current
Output Switch
-150
SW On-Resistance (5)
SW Current Limit
RON
BV
0.5
450
0.6
650
Ω
mA
V
300
25
SW Voltage
ISW = 10μA
Thermal Shutdown (5)
Thermal Shutdown Hysterisis (5)
160
15
°C
°C
Notes:
4) First 64 pulses after EN switches high.
5) Guaranteed by design.
10/07, Rev. 1.6
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