JWB1992M/JWB1992A
Non-isolated Buck
爱慕的意思
LED Driver Regulator
Parameters Subject to Change Without Notice
DESCRIPTION
JWB1992M/JWB1992A is a non-isolated constant current LED regulator with high current accuracy which applies to step-down LED drivers. Operating in the boundary mode makes it high efficiency and low radiation. Patented algorithms ensure good current accuracy and excellent line/load regulations.
JWB1992M/JWB1992A is supplied from the line directly without auxiliary winding or external capacitor, which can lower the system BOM cost. With
unique
sampling
techniques, JWB1992M/JWB1992A
has
multi-protection
functions which can largely enhance the safety and reliability of the system, including LED short protection, and over-temperature protection.
C o m p a n y ’s L o g o i s P r o t e c t e d , “J W ” a n d “J O U L W A T T ” a r e R e g i s t e r e d T r a d e m a r k s o f J o u l W a t t t e c h n o l o g y I n c .
FEATURES
截成语
● 800V Bridge Rectifier Integrated ● 600V Low V F Diode Integrated ● 500V MOSFET Integrated ● No Auxiliary Winding
● Excellent Line/load Regulation ● Boundary Mode Operation ● High Efficiency ● LED Short Protection ● Over-Temperature Protection ● ASOP-7 Package
APPLICATIONS
● LED Driver
TYPICAL APPLICATION
AC IN
CS
DRAIN
GND
Rcs
JWB1992M /JWB1992A
VIN
ACIN2
ACIN1NC
ORDER INFORMATION
Note ：
Line2:
Lot number
Week code Year code
Line1:
Joulwatt LOGO JW #TRPBF
PB Free
Tape and Reel(If ”TR ”is not shown, it means tube)Package Code Part No.
1)
2)YW
JW
Product code
DEVICE INFORMATION
DEVICE
MOS BV MOS RDSON
OUTPUT CURRENT
120V Output 72V Output JWB1992MASOPC#TRPBF 500V 13 Ω <160mA <190mA JWB1992AASOPC#TRPBF
500V
8 Ω
<200mA
<240mA
PIN CONFIGURATION
TOP VIEW
7
1
2ASOP-7
ACIN1
GND ACIN2
VIN
6
3
4DRAIN
5
NC CS
DEVICE 1)
PACKAGE TOP MARKING 2)
JWB1992MASOPC#TRPBF
ASOP7
JWB1992M YW □□□□□ JWB1992AASOPC#TRPBF ASOP7
JWB1992A
YW □□□□□
ABSOLUTE MAXIMUM RATING1）
VIN Voltage .............................................................................................................................................................. 500V DRAIN Pin……………………………..........................................................................................................................500V -0.3V
to 8V Junction Temperature2)3).......................................................................................................................................150ºC -65ºC to +150ºC
RECOMMENDED OPERATING CONDITIONS
VIN Voltage ...............................................................................................................................................................400V Operating -25ºC to 125ºC
RECOMMENDED OUTPUT CURRENT6）
<<<240mA
RECOMMENDED OUTPUT VOLTAGE
JWB1992M (20)
JWB1992A (30)音乐魔盒
Note：
1) Exceeding the ratings may damage the device.
2) The JWB1992M/JWB1992A guarantees robust performance from -40°C to 150°C junction temperature. The junction
temperature range specification is assured by design, characterization and correlation with statistical process controls.
3) The JWB1992M/JWB1992A includes thermal protection that is intended to protect the device in overload conditions.
Thermal protection is active when junction temperature exceeds the maximum operating junction temperature.夏季海滩
Continuous operation over the specified absolute maximum operating junction temperature may damage the device.
4) Measured on JESD51-7, 4-layer PCB.
5) The maximum output current is recommended in the application according to chip junction temperature TJ=125℃
(chip ca temperature difference about 20℃). The maximum output current could be incread properly if the heat dissipation is better.
6) The output current is recommended for 176-264Vac input and 72V output testing condition;
ELECTRICAL CHARACTERISTICS
T A=25℃, unless otherwi stated
Item Symbol Condition Min. Typ. Max. Units Threshold of VIN power on7)V IN_ON V IN rising 8 V VIN Operation Current I op150 190 μA Reference Voltage V REF388 400 412 mV MOS Max ON Time T ONMAX28 40 42 μs MOS Min ON Time7)T ONMIN0.4 0.8 μs MOS Max OFF Time T OFFMAX320 400 480 μs
Drain-source BV Voltage JWB1992M
/JWB1992A
BV DSS
科技让生活更美好作文500字Vg=0V
Ids=250μA
500 V
MOS R DSON JWB1992M
R DS_ON
Vg=10V
Ids=0.5A
13 14
ohm JWB1992A 8 9
DS Leakage Current JWB1992M
/JWB1992A
I DSS
Vg=0V
Vds=500V
1 5 μA
Diode Rever Recovery time7)T RR I F=0.5A,I R=1A,
我爱你英语怎么写I FF=0.25A
35 ns
Freewheel Diode BV Voltage7)V BRDSD600 V Freewheel Diode Forward Voltage
Drop7)
V F I F=0.5A 1.68 V Bridge Diode BV Voltage7)V BR_BD800 V Bridge Diode Forward Voltage
Drop7)
V F_BD I F=1A 1.1 V Bridge Diode Peak Forward Surge
Current 8.3ms Single Half Sine
Wave
I FSM15 A Thermal Protection Threshold7)OTP CHIP150 160 170 ℃Notes:
7) Guaranteed by design
PIN DESCRIPTION
Pin Name
Description
ASOP-7
1 ACIN
2 AC Input 2 GND Chip ground
3 NC No Connect
4 CS Current n pin
5 DRAIN The drain of MOSFET
6 VIN Power supply 7
ACIN1
AC Input
BLOCK DIAGRAM
VIN
OTP
Power Supply
ZCD
RS Latch
Gate Driver
Set
Ret
Tonmax
Toffmax关于青春的歌词
Vref
Comparator
学校学校
CS
CS
DRAIN
GND Vg
600V ES1JP
ACIN1
ACIN2
