MP4032-1—PRIMARY-SIDE-CONTROLLED, OFFLINE LED DRIVER WITH FULLY-INTEGRATED MOSFET
MP4032-1 Rev. 1.02 www.MonolithicPower.com 4
7/15/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
V
CC
= 16V, T
A
= +25°C, unless otherwise noted.
Parameter Symbol Condition Min Typ Max Units
Supply Voltage
Operating Range V
CC
After turn-on 10.3 27 V
Turn-On Threshold V
CC_ON
V
CC
rising 13.3 13.8 14.3 V
V
CC_CHG_NF
V
CC
falling, no fault 8.9 9.4 9.9 V
Drain-Charger Starting
Threshold
V
CC_CHG_F
V
CC
falling, fault occurs 7.1 7.5 7.9 V
V
CC_ON_CHG_HYS
4.5 V
Hysteresis Voltage
V
CC_CHG_HYS
2 V
Supply Current
Drain Charger Supply Current I
CC_CHARGE
Before system turns on 4.5 6 7.5 mA
Start-Up Current I
STARTUP
150 195 µA
No switching 900 970 µA
Quiescent Current I
Q
No switching, fault hiccup 500 570 µA
Operating Current I
CC
f
s
=70kHz 1 1.1 mA
Multiplier
Operation Range V
MULT
0 3 V
Gain K
(5)
0.8 1 1.2 1/V
Error Amplifier
Reference Voltage V
REF
0.389 0.403 0.417 V
Transconductance
(6)
G
EA
125 µA/V
Lower Clamp Voltage V
COMP_L
1.83 1.9 1.97 V
Max. Source Current
(6)
I
COMP_SOURCE
50 µA
Max. Sink Current
(6)
I
COMP_SINK
-350 µA
COMP OCP Threshold V
COMP_OCP
V
COMP
rising edge 4.8 5 5.2 V
Current Sense Comparator
Leading-Edge Blanking Time τ
LEB
220 310 400 ns
Current Sense Upper Clamp
Voltage
V
CS_CLAMP_H
2.17 2.27 2.37 V
Current Sense Lower Clamp
Voltage
V
CS_CLAMP_L
115 145 175 mV
130µs auto-switching mode &
the output of Multiplier is
<0.25V
0.05
Feedback Gain K
CS
Other conditions
1
Zero Current Detector
Zero Current Detect Threshold V
ZCD_T
V
ZCD
falling edge 0.32 0.35 0.38 V
Zero Current Detect Hysteresis V
ZCD_HYS
0.55 V
ZCD Blanking Time τ
LEB_ZCD
After turn-off 1.95 2.65 3.35 μs
Over-Voltage Blanking Time τ
LEB_OVP
After turn-off 1.35 1.9 2.45 μs
Over-Voltage Threshold V
ZCD_OVP
1.9μs delay after turn-off 5.1 5.3 5.5 V
