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MP4027 Datasheet(PDF) 5 Page - Monolithic Power Systems

Part # MP4027
Description  Primary-Side Control, Offline LED Controller with Active PFC, NTC and PWM Dimming
PDF  19 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP4027 Datasheet(HTML) 5 Page - Monolithic Power Systems

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MP4027 – PRIMARY-SIDE CONTROL, OFFLINE LED CONTROLLER WITH ACTIVE PFC
MP4027 Rev. 1.02
www.MonolithicPower.com
5
12/9/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (continued)
Typical values are at VCC = 20V, TJ = +25°C, unless otherwise noted.
Minimum and maximum values are at VCC = 20V, TJ = -40°C to +125°C, unless otherwise noted,
guaranteed by characterization.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Current Sense Comparator and Zero Current Detector
CS/ZCD Bias Current
IBIAS_CS/ZCD
500
nA
Leading-Edge-Blanking Time
tLEB_CS
290
400
650
ns
Current-Sense Clamp Voltage
VCS_CLAMP
1.9
2.0
2.1
V
Over-Current Protection,
Leading-Edge-Blanking Time
tLEB_CS_OCP
190
280
480
ns
Over-Current Protection
Threshold
VCS_OCP
2.36
2.46
2.56
V
Zero-Current Detection Threshold
VZCD_T
VZCD falling edge
0.270
0.295
0.318
V
Zero-Current Detect Hysteresis
VZCD_HYS
562
595
628
mV
After turn-off,
VMULT_O
(5) >0.3V
1.2
1.6
2.1
μs
ZCD Blanking Time
tLEB_ZCD
After turn-off,
VMULT_O ≤0.3V
0.6
0.8
1.1
μs
After turn-off,
VMULT_O >0.3V
1.2
1.6
2.1
μs
Over-Voltage Blanking Time
tLEB_OVP
After turn-off,
VMULT_O ≤0.3V
0.6
0.8
1.1
μs
Over-Voltage Protection
Threshold
VZCD_OVP
1.6μs delay after turn-off
4.9
5.1
5.4
V
Minimum Off Time
tOFF_MIN
4
5.5
8
µs
Starter
Start-Timer Period
tSTART
190
µs
Gate Driver
Output-Clamp Voltage
VGATE_CLAMP VCC=28V
13.0
14.5
17.0
V
Minimum-Output Voltage
VGATE_MIN
VCC=VCCOFF + 50mV
6.7
V
Max. Source Current
(6)
IGATE_SOURCE
0.8
A
Max. Sink Current
(6)
IGATE_SINK
-1
A
Thermal Shutdown
Thermal Shutdown Threshold
(6)
TSD
150
°C
Thermal Shutdown Recovery
Hysteresis
(6)
THYS
25
°C
Notes:
5) The multiplier output VMULT_O is given by: VCS=VMULT_O=K•VMULT• (VCOMP-1.5)
6) Guaranteed by characterization.



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