BW7383
FEATURES
6 Pin Non-isolation Buck current control IC with High PFC for LED Lighting
DESCRIPTION
BW7383 is a non-isolation Buck type control IC
with active power factor correction function for LED
lighting application.
Correction
The IC achieves high power factor and high
efficiency by BCM mode. The line and load
regulation of LED current is about ±2.5% because
of particular control method.
BW7383 also provides gate driving voltage
clamping, VCC over voltage protection and system
output open/short circuit protection to increase IC
performance.
Universal Input Voltage Range from 90VAC to
264VAC
Transition-mode PFC operating
Built-in
Active
Power
Factor
Technique
Constant Output Current Control LED driver
Good Line and Load Regulation
Open-LED Protection on DMG and VCC pin
Over-Voltage Protection on VCC pin
Short-LED Protection
Cycle by Cycle Over current Protection on CS
pin
Over-Temperature Protection
Gate Driving Voltage Clamping
SOT26 Package Available
APPLICATIONS
LED lighting
Down light
Tube lamp
PAR lamp
Bulb
ORDER INFORMATION
BW 7383- KF R
BW
Circuit Type
KF: SOT-26
Shipping:
R: Tape & Reel
PIN CONFIGURATIONS
(TOP VIEW)
SOT-26
1 COM
2 GND
3
CS
DMG 6
VCC 5
OUT 4
Rev 1.1
Jan. 2014
1
BW7383
6 Pin Non-isolation Buck current control IC with High PFC for LED Lighting
PIN DESCRIPTIONS
Pin Name
COM
GND
CS
OUT
VCC
DMG
Output pin of error amplifier.
Ground return for all internal circuit.
Input current sense pin.
Gate driver output.
Power supply pin for all internal circuit.
Zero current demagnetization sensing.
Pin Description
TYPICAL APPLICATION CIRCUITS
Figure 1
Rev 1.1
Jan. 2014
2
BW7383
6 Pin Non-isolation Buck current control IC with High PFC for LED Lighting
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Parameter
Power supply pin
DMG voltage to GND
OUT voltage to GND
CS voltage to GND
COM voltage to GND
Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 sec)
Power Dissipation @T
A
=25 °
C
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
ESD Rating (Human body mode)
(Note 3)
(Note 2)
Symbol
V
CC
V
DMG
V
OUT
V
CS
V
COM
Tj
T
STG
T
LEAD
P
D
θ
JA
θ
JC
V
ESD
Range
40
-0.3 to 40
-0.3 to 40
-0.3 to 5.5
-0.3 to 5.5
-40 to +150
-65 to +150
260
0.3
220
106.6
2
Unit
V
V
V
V
V
°
C
°
C
°
C
W
°
C/W
°
C/W
kV
RECOMMENDED OPERATING CONDITIONS
(Note4)
Parameter
Power supply pin
DMG voltage to GND
OUT voltage to GND
CS voltage to GND
COM voltage to GND
Operating Junction Temperature Range
Operating Ambient Temperature Range
Symbol
V
CC
V
DMG
V
OUT
V
CS
V
COM
T
J
T
OPA
Operation Conditions
34.5
-0.3 to 11.2
-0.3 to 19
-0.3 to 5
-0.3 to 5
-40 to +125
-40 to +85
Unit
V
V
V
V
V
°
C
°
C
Note 1:
Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress
ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect
device reliability.
Note 2:
Thermal Resistance is specified with the component mounted on a low effective thermal conductivity test board in free air at
T
A
=25°
C.
Note 3:
Devices are ESD sensitive. Handing precaution recommended.
Note 4:
The device is not guaranteed to function outside its operating conditions.
Rev 1.1
Jan. 2014
3
BW7383
6 Pin Non-isolation Buck current control IC with High PFC for LED Lighting
BLOCK DIAGRAM
Figure 2
Rev 1.1
Jan. 2014
4
BW7383
6 Pin Non-isolation Buck current control IC with High PFC for LED Lighting
ELECTRICAL CHARACTERISTICS
T
A
= 25° unless otherwise specified.
C,
Parameter
Turn-on voltage
Turn-off voltage
Quiescent current 1
Quiescent current 2
Operation supply current
PROTECTION
VCC voltage protection
Output voltage protection
CS limit voltage
Short circuit protection(Note 5)
OSCILLATOR
Start up timer
GM AMPLIFIER
Reference voltage
Transconductance
Source current
DRIVER
Dropout voltage
Rising time
Falling time
Output clamp voltage
Leading edge blanking time
OTP(Note
6)
OTP Trip Point
OTP Release Point
OTP Threshold Hysteresis
Note 5:
Guaranteed by design.
Note 6:
Auto Recovery Type.
Symbol
V
CC_ON
V
CC_OFF
I
Q1
I
Q2
I
CC
V
OVPA
V
OVPS
V
OCP
V
O_STR
T
STR
V
REF
G
M
I
COMP_SOU
V
OH
V
OL
T
RISE
T
FAIL
V
O_CLAMP
LEB
T
Condition
Min
17.4
9.3
Typ
18.4
9.8
30
600
2.5
32.8
10.5
1.25
2
220
200
108
20
1.2
0.12
40
80
--
0.5
150
115
35
Max
19.4
10.3
50
800
3.0
34.5
11.2
1.35
--
--
205
--
--
1.5
--
--
--
19
--
--
--
--
Unit
V
V
uA
uA
mA
V
V
V
V
us
mV
uA /V
uA
V
V
ns
ns
V
ns
Vcc=17V, at Vcc_off
Start up at 4.5 KHz
--
--
--
31.2
9.8
1.15
--
--
195
--
--
V
CC
=33V, I
O
= 10mA
V
CC
=33V, I
O
= -10mA
V
CC
=20V, C
O
=1nF
V
CC
=20V, C
O
=1nF
--
--
--
--
--
--
--
--
--
℃
℃
℃
Rev 1.1
Jan. 2014
5
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