BL6562 ACTIVE PFC CONTROLER

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%(@Tj=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
INV
2
COMP
3
MULT
4
Vcc 8
BL6562
1
GD
7
GND 6
ZCD 5
CS
8 LEAD SOP or DIP
-1-
BL6562
SHANGHAI BELLING CO.,LTD.
Zip code: 200233 Phone: 86-021-64850700 Fax: 86-021-64854424
ACTIVE PFC CONTROLER
Table 1 Pin description
Pin
Symbol
Function description
1
INV
2
COMP
Output of the error amplifier and one input of the multiplier.
3
MULT
One input of the multiplier.
4
CS
One input of Current sense comparator. An internal low pass filter is placed to reduce
high frequency interface.
5
ZCD
Zero current detection input and disable function pin. When the voltage is smaller than
130mV, the device is disabled.
6
GND
Ground.
7
GD
Gate driver output. The typical upper output clamp voltage is 12V.
8
Vcc
Supply input. Supply voltage of UVLO block, voltage regulator and output driver. The
upper limit is extended to 24V min.
Inverting input of the error amplifier.
Figure 3 Block diagram
COMP
2
INV
MULT
CS
3
4
1
40K
Multiplier
EA
2.5V
1.7V
1.7V
7pF
Voltage
regulator
VCC
Overvoltage
detector
8
Internal supply
7V,5V
25V
VREF1
UVLO
Q
7
2.1V
1.4V
R
VCC
S
GD
5
Disable
13V
Gate
driver
Negative
edge detector
Starter
6
GND
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ZCD
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 [email protected](DIP-8)
Power [email protected](SO-8)
Junction temperature operating range
Storage temperature
ESD(HBM) voltage
Latch up current
symbol Value
VCC
24.5
-0.3~8
IZCD
+/-10
VGD
-0.3~self-limited
Ptotal
1
Ptotal
0.65
Tj
-40~150
Tstg
-55~150
VESD
>4000
ILatchup >200
Unit
V
V
mA
W
W
○
C
○
C
V
mA
Table3 Electrical characteristics
(T=25○C,Vcc=12V,CO=1nF;unless otherwise specifed)
symbol parameter
Test condition
Supply block
Vcc-on
Turn-on threshold
Vcc-off
Turn-off threshold
Vcc
Operating rang
After turn-on
Vcc,clamp Upper clamp voltage
ICC=20mA
T=25○C
VR25
2.5V reference voltage
10.3V<VCC<24
Supply current
VCC=11V before turn
Ist
Start-up current
on
Iq
Quiescent current
Icc
Operating current
@70kHz
Quiescent
current
when
Iqsdis
Vzcd=120mV
DISABLE
Iqsovp
Quiescent current when OVP OVP
Multiplier block
Imul
Input bias current
Vmult= 4V
Lmul
Linear operating range
Vmult=0~0.5V,
kmax
Max slope
Vcomp=5.2V
K
Gain(1)
Vmult=1V,Vcomp=4V
Vmult=0V
Vmultoffset Multiplier offset
Vmult=2.5V
Vmultclamp Output clamp voltage
Vcomp=5.2V
-3-
min
typ
11
9
10.3
24.5
2.475
2.45
12
9.5
max
13
10.2
24
25.8 28
2.5 2.525
2.55
V
V
V
V
V
40
70
uA
1.3
1.5
2
2.2
mA
mA
0.67 1
mA
1.3
2
mA
-1
uA
V
0~3
1.6
1.9
0.5
0.6
27
5
1.7
1.6
unit
V/V
0.7
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,CO=1nF;unless otherwise specified)
Error amplifier block
Iinv
Input bias current
Av
Open loop voltage gain
GBW
Gain Bandwidth
Source current
Icomp
Sink current
upper clamp voltage
Vcomp
Lower clamp voltage
Over voltage protector
Dynamic
OVP
threshold
Iovp
current
Hys
Vovp
Static OVP threshold voltage
Current sense block
Ics
Input bias current
td(H-L)
Delay to output
Zero current detector block
Vzcd(H) Upper clamp voltage
Vzcd(L)
Lower clamp voltage
Izcdb
Input bias current
VZCDA
Positive triggering voltage
VZCDT
Negative triggering voltage
Izcdsor
Source current capability
Izcdsink
Sink current capability
Vzcddis
Disable threshold
Vzcden
Enable threshold
Izcdres Restart current
Starter block
fstart
Starter frequency
Output gate driver block
Voh
Vol
tf
tr
Voclamp
Vo-uvlo
Output voltage
Fall time
Rise time
Output clamp voltage
Output voltage before turn on
Vinv= 3V
-1
-2
4
5.2
0.8
80
1
-3.5 -5
6
5.35 5.8
1
1.2
uA
dB
MHz
mA
mA
V
V
24
39
45
uA
1.6
20
1.7
1.8
uA
V
250
-1
uA
350 ns
60
Vcomp=4V, Vinv=2.4V
Vcomp=4V, Vinv=2.6V
Isource=-0.5mA
Isink=0.5mA
(2)
(2)
Vcs=0
Izcd=2.5mA
Izcd=-2.5mA
Vzcd=1 to 4.5V
(2)
(2)
IGDsource=20mA
IGDsource=200mA
IGDsink=200mA
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
V
V
uA
V
V
mA
mA
mV
mV
uA
5
9
16
KHz
9.8
8
10.3
8.3
1
32
45
12
1.9
70
85
13
1
V
V
V
ns
ns
V
V
Vcc=20V, IGDsource=5mA
11
Vcc=0~VCCon, IGDsink=10mA
(1) K= VCS/ [Vmult*(Vcomp-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 (VAC) Pin (W) Vo (VDC) ∆Vo(Vpp) Po (W) η (%) PF
THD(%)
85
86.6
391.75 15
80.19 92.6
0.998 3.4
110
84.7
391.83 15
80.21 94.7
0.998 4.6
135
83.8
391.83 15
80.21 95.7
0.997 5.4
175
83.2
391.85 15
80.21 96.4
0.997 5.8
220
82.9
391.87 15
80.21 96.8
0.991 6.7
265
82.7
391.87 15
80.21 97.0
0.978 8.2
-5-
BL6562
ACTIVE PFC CONTROLER
SHANGHAI BELLING CO.,LTD.
Zip code: 200233 Phone: 86-021-64850700 Fax: 86-021-64854424
4 Package information
Figure 6 DIP8 package dimensions
Figure 7 SOP8 package dimensions
Notice: Sample tested during initial release and after any redesign or process change
that may affect parameter. Specification subject to change without notice. Please ask
for the newest product specification at any moment.
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