ADT6011

ADT6011
Transition Mode PFC controller
ADT6011
DESCRIPTION
The ADT6011 is a transition mode PFC controller IC and
it is very high power factor controller for Pre regulator and
LED Lighting
Li hti applications.
li ti
It can operate with wide input voltage range from 90V to 270VAC.
It supports flyback topology and achieves very high power factor.
The internal linear multiplier is able to reduce AC input current distortion,
and operates with very low THD.
SOP-8
The output voltage is controlled by feedback with 1% precise internal voltage reference.
It provides very accuracy overvoltage protection .
FEATURES
APPLICATIONS
• Transition Mode operation
• PFC pre-regulator
• operating voltage up to 40V
• LED lighting
• Low startup current ( 10uA )
-. Single stage high PF Flyback AC/DC SMPS
• Trimmed 1% Internal reference voltage
-. Single stage offline LED driver
• Internal startup timer
-. LED lighting power
• Internal Leading edge blanking
• Cycle-by-Cycle current limit
• Under Voltage Lockout
• Very accurate output overvoltage protection
• Totem pole gate driver with voltage clamp
• High Power factor ( >0.95 ) and Low THD ( < 20% )
* Base TM PFC mode
* This specifications are subject to be changed without notice
Oct. 24. 2013 / Rev. 0.0
1/5
http://www.ad-tech.co.kr
ADT6011
PIN DESCRIPTION
Pin No.
Pin Name
Description
1
INV
2
COMP
Output of Error amplifier. The compensation network is placed between INV and
COMP pin.
3
MULT
Main input of the multiplier. Connected to the rectified main voltage via a resistor
divider and provides the sinusoidal reference to the current loop.
4
CS
5
ZCD
Zero Current Detection input. A negative edge triggers MOSFET’ turn on.
6
GND
Ground.
7
GD
8
VCC
Inverting input of the error amplifier.
Current sense input and one input of internal PWM comparator.
comparator
Gate driver output.
Supply voltage input.
BLOCK DIAGRAM
VCC
40V
2.6V
INVOVP
2.25V
Vref
UVLO
SOVP
INV
ZCD
5.8V
1.4V/0.7V
Lower
clamp
l
VCCOVP
Vref
VCC
2.5V
COMP
5.8V
MULT
Starter
Lower
clamp
Multiplier &
THD optimizer
15V
GD
1V
LEB
INVOVP
UVLO
SOVP
VCCOVP
S Q
R
Driver
OTP
GND
CS
* This specifications are subject to be changed without notice
Oct. 24. 2013 / Rev. 0.0
2/5
http://www.ad-tech.co.kr
ADT6011
TYPICAL APPLICATION
AC
snubber
MULT
VCC
•
ZCD
INV
GD
ADT6011
•
•
LED
•
F/B
Q1
CS
GND
COMP
ABSOLUTE MAXIMUM RATINGS (Ta = 25oC)
PARAMETER
SYMBOL
RATING
UNIT
Ground Voltage
GND
-0.3
V
Power Voltage
VCC
40
V
Gate Driver Output
OUT
18
V
INV,COMP,MULTI,ZCD
6
V
Power Dissipation
PD
0.64
W
Junction
i Temperature
Tj
-40
40 ~ 150
℃
Storage Temperature
Tstg
-55 ~ 150
℃
Thermal Resistance
θJA
150
℃/W
All other pins
* This specifications are subject to be changed without notice
Oct. 24. 2013 / Rev. 0.0
3/5
http://www.ad-tech.co.kr
ADT6011
ELECTRICAL CHARACTERISTICS
(VCC = 20V, Ta=25°C, Co = 1nF; unless otherwise specified)
Spec
Items
Symbol
Parameter
Condition
Unit
ADT6011
Min Typ Max
supply
current
supply
voltage
Istartup
start up
Before turn on, VCC=11V
uA
-
10
40
Iq
quiescent
After turn on, no switching
mA
-
1.2
2.5
Icc
Switching
@ 70khz
mA
-
3.5
6
VCC
Operating Voltage
V
-
-
40
UVLO(IC ON)
Start up threshold
V
15
16
17
UVLO(IC OFF)
UVLO
V
9
10
11
Hys
UVLO Hysteresis
V
-
6
-
V
-
38.5
-
OVP
Error Amp
Over voltage protection
Vref
EA Reference
Ta=25°C
Gv(*)
Voltage Gain
Open loop
Gb(*)
Gain Bandwidth
Icomp
Vcomp
Static OVP
Multiplier
CS Comp
p
Zero
Current
Detector
Startup Timer
Gate Drive
V 2.475 2.5 2.525
dB
-
80
-
Mhz
-
1
-
source current
V(COMP)=3.6V, V(INV)=2.4V
mA
-4
-10
-16
sink current
V(COMP)=3.6V, V(INV)=2.6V
mA
4
10
16
upper clamp voltage
Isource=0.5mA
V
5.2
5.8
6.4
low clamp voltage
Isink=0.5mA
V
1.3
1.6
1.9
SOVP
Static OVP threshold voltage
V
2.1 2.25 2.4
Vmulti
Linear operating range
V
0~3
ΔVcs/Δvmulti
Output Max. slope
V(MULT)=0 to 0.5V,
V(COMP)=Upper clamp
K
Gain
V(MULT)=1V, V(COMP)=4V
Vcs
CS Reference Clamp
V(COMP)=4V, V(MULT)=4V
Tleb
LEB
Vzcd_upper
upper clamp voltage
Vzcd_lower
lower clamp voltage
V/V 1.0
-
-
1.1
-
1/V 0.27 0.35 0.43
V
0.92
ns
100 200 300
I(ZCD)=2.5mA
V
5.2
5.8
6.4
I(ZCD)=-2.5mA
V
-
0
-
mA -3.0
-
-
sink current
mA
3.0
-
-
Vzcda(*)
arming voltage(posedge)
V
-
1.4
-
Vzcdt(*)
triggering voltage(negedge)
V
-
0.7
-
Tstart
Re-start Timer Period
us
60
Vol
Low output voltage
V
-
0.6
1.2
Voh
High output voltage
V
12
14
-
Tr
rising time(Cl=1nF)
ns
-
60
110
Tf
falling time(cl=1nF)
ns
-
30
70
Izcd
source current
1
1.08
120 200
Note 1 : The parameter is guaranteed by design. It is not tested in production.
* This specifications are subject to be changed without notice
Oct. 24. 2013 / Rev. 0.0
4/5
http://www.ad-tech.co.kr
ADT6011
PACKAGE DIMENSTION
* This specifications are subject to be changed without notice
Oct. 24. 2013 / Rev. 0.0
5/5
http://www.ad-tech.co.kr