BL6562
ACTIVE PFC CONTROLER
SHANGHAI BELLING CO.,LTD.
Zip code: 200233 Phone: 86-021-64850700 Fax: 86-021-64854424
BL6562 ACTIVE PFC CONTROLER
1 Features
Transition-mode control
Low start-up current (<70uA)
Ultra-low quiescent current≤ 2mA
Ultra-low operating current≤ 2.2mA
Large IC supply voltage operating range
Supply current≤ 1mA after disable
○
1%(@T
j
=25 C) internal reference voltage
System operation protection:
Dynamic and static over voltage protection
Under-voltage lockout function
Figure1 PACKAGES
Peak current limited
Supply voltage upper clamped
Output voltage upper clamped
-400mA/+600mA totem pole output driver with UVLO pull-down
Applications
LED Light Driver
Electronic Ballast
AC/DC Adapter
2 General descriptions
BL6562 is an active power factor correct controller operating in transition mode, which is
mainly used in small power electronic ballast, LED light driver and AC/DC adapter.
Realised in advanced BCD technology, BL6562 features ultra-low start-up current and
operating current (≤ 2.2mA @12V). Remote IC DISALBE function can make it work at power
saving mode.
BL6562 includes an internal highly linear multiplier, able to provide a high power factor in
wide-range-mains operation and over a large range load change. The max current of the
MOSFET is limited to the upper clamp output voltage of the multiplier.
Dynamic and static over-voltage protection, internal supply voltage upper clamp、under
voltage lockout and output upper clamp functions can make the system work safely.
-400mA/+600mA totem pole output driver is capable of driving large power
MOSFET and IGBT.
Figure 2 Pin connection
1
2
3
4
INV
Vcc 8
BL6562
COMP
MULT
CS
GD
7
GND 6
ZCD 5
8 LEAD SOP or DIP
-1-
BL6562
ACTIVE PFC CONTROLER
SHANGHAI BELLING CO.,LTD.
Zip code: 200233 Phone: 86-021-64850700 Fax: 86-021-64854424
Table 1 Pin description
Pin
1
2
3
4
5
6
7
8
Symbol
INV
COMP
MULT
CS
ZCD
GND
GD
Vcc
Function description
Inverting input of the error amplifier.
Output of the error amplifier and one input of the multiplier.
One input of the multiplier.
One input of Current sense comparator. An internal low pass filter is placed to reduce
high frequency interface.
Zero current detection input and disable function pin. When the voltage is smaller than
130mV, the device is disabled.
Ground.
Gate driver output. The typical upper output clamp voltage is 12V.
Supply input. Supply voltage of UVLO block, voltage regulator and output driver. The
upper limit is extended to 24V min.
Figure 3 Block diagram
COMP
2
INV
1
2.5V
1.7V
EA
Multiplier
1.7V
7pF
MULT
3
40K
CS
4
Voltage
regulator
Overvoltage
detector
Internal supply
7V,5V
25V
V
REF1
V
CC
8
Disable
5
ZCD
UVLO
Q
VCC
S
Gate
driver
Negative
edge detector
R
2.1V
1.4V
GD
7
13V
Starter
6
GND
-2-
BL6562
ACTIVE PFC CONTROLER
SHANGHAI BELLING CO.,LTD.
Zip code: 200233 Phone: 86-021-64850700 Fax: 86-021-64854424
Table 2 Absolute maximum ratings
Parameter
Supply voltage
inputs and outputs voltages(Pin1~4)
Zero current detector current
Gate driver output voltage
Power dissipation@50
○
C(DIP-8)
○
Power dissipation@50 C(SO-8)
Junction temperature operating range
Storage temperature
ESD(HBM) voltage
Latch up current
symbol Value
V
CC
24.5
-0.3~8
I
ZCD
+/-10
V
GD
-0.3~self-limited
P
total
1
P
total
0.65
T
j
-40~150
T
stg
-55~150
V
ESD
>4000
I
Latchup
>200
Unit
V
V
mA
W
W
○
C
○
C
V
mA
Table3 Electrical characteristics
（T=25
C，V
cc
=12V，C
O
=1nF；unless otherwise specifed）
symbol parameter
Test condition
Supply block
V
cc-on
Turn-on threshold
V
cc-off
Turn-off threshold
V
cc
Operating rang
After turn-on
V
cc,clamp
Upper clamp voltage
I
CC
=20mA
T=25
○
C
V
R25
2.5V reference voltage
10.3V<V
CC
<24
Supply current
V
CC
=11V before turn
I
st
Start-up current
on
I
q
Quiescent current
I
cc
Operating current
@70kHz
Quiescent
current
when
I
qsdis
V
zcd
=120mV
DISABLE
I
qsovp
Quiescent current when OVP OVP
Multiplier block
I
mul
Input bias current
V
mult
= 4V
L
mul
Linear operating range
V
mult
=0~0.5V,
k
max
Max slope
V
comp
=5.2V
K
Gain
(1)
V
mult
=1V,Vcomp=4V
V
mult=
0V
V
multoffset
Multiplier offset
V
mult=
2.5V
V
multclamp
Output clamp voltage
V
comp
=5.2V
-3-
○
min
11
9
10.3
24.5
2.475
2.45
typ
12
9.5
max
unit
V
V
V
V
V
13
10.2
24
25.8 28
2.5 2.525
2.55
40
1.3
1.5
70
2
2.2
uA
mA
mA
mA
mA
uA
V
V/V
0.67 1
1.3
2
-1
0~3
1.6
0.5
1.9
0.6
27
5
1.7
0.7
1.6
1.8
1/V
mV
mV
V
BL6562
ACTIVE PFC CONTROLER
SHANGHAI BELLING CO.,LTD.
Zip code: 200233 Phone: 86-021-64850700 Fax: 86-021-64854424
Table 3 Electrical characteristics (continued)
（T=25
C，Vcc=12V，C
O
=1nF；unless otherwise specified）
○
Error amplifier block
I
inv
Input bias current
Av
Open loop voltage gain
GBW
Gain Bandwidth
Source current
I
comp
Sink current
upper clamp voltage
V
comp
Lower clamp voltage
Over voltage protector
Dynamic
OVP
threshold
I
ovp
current
Hys
V
ovp
Static OVP threshold voltage
Current sense block
I
cs
Input bias current
t
d(H-L)
Delay to output
Zero current detector block
V
zcd(H)
Upper clamp voltage
V
zcd(L)
Lower clamp voltage
I
zcdb
Input bias current
V
ZCDA
Positive triggering voltage
V
ZCDT
Negative triggering voltage
I
zcdsor
Source current capability
I
zcdsink
Sink current capability
V
zcddis
Disable threshold
V
zcden
Enable threshold
Izcdres Restart current
Starter block
f
start
Starter frequency
Output gate driver block
V
oh
V
ol
tf
tr
V
oclamp
V
o-uvlo
Output voltage
Fall time
Rise time
Output clamp voltage
Output voltage before turn on
V
inv
= 3V
60
V
comp
=4V, V
inv
=2.4V
V
comp
=4V, V
inv
=2.6V
I
source
=-0.5mA
I
sink
=0.5mA
-2
4
5.2
0.8
24
(2)
(2)
-1
80
1
-3.5 -5
6
5.35 5.8
1
1.2
39
20
1.7
45
1.8
uA
dB
MHz
mA
mA
V
V
uA
uA
V
1.6
V
cs
=0
250
I
zcd
=2.5mA
I
zcd
=-2.5mA
V
zcd
=1 to 4.5V
(2)
(2)
-1
uA
350 ns
V
V
uA
V
V
mA
mA
mV
mV
uA
KHz
V
V
V
ns
ns
V
V
5
0.3
5.8 6.5
0.55 0.8
2
2.1
1.4
-2.5
-5.5
2.5
130 160 190
250 280 310
40
80
5
9
10.3
8.3
1
32
45
12
16
I
GDsource
=20mA
I
GDsource
=200mA
I
GDsink
=200mA
9.8
8
V
cc
=20V, I
GDsource
=5mA
11
V
cc
=0~V
CCon
, I
GDsink
=10mA
1.9
70
85
13
1
(1) K= V
CS
/ [V
mult
*(V
comp
-2.5)]
(2)Parameters guaranteed by design.
-4-
BL6562
ACTIVE PFC CONTROLER
SHANGHAI BELLING CO.,LTD.
Zip code: 200233 Phone: 86-021-64850700 Fax: 86-021-64854424
3 Application information
Figure 4 Wide-range mains demo board BL6562-80W: schematic
Figure 5 Wide-range mains demo board BL6562-80W: PCB layout
Table 4 BL6562-80W test results
Vin (V
AC
) P
in
(W) V
o
(V
DC
)
∆V
o
(V
pp
) P
o
(W)
η
(%) PF
85
110
135
175
220
265
86.6
84.7
83.8
83.2
82.9
82.7
391.75 15
391.83 15
391.83 15
391.85 15
391.87 15
391.87 15
-5-
THD(%)
80.19 92.6
80.21 94.7
80.21 95.7
80.21 96.4
80.21 96.8
80.21 97.0
0.998 3.4
0.998 4.6
0.997 5.4
0.997 5.8
0.991 6.7
0.978 8.2
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