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PDF BW7386 Data sheet ( Hoja de datos )
| Número de pieza | BW7386 | |
| Descripción | Accuracy Constant Current LED Driver | |
| Fabricantes | Bruckewell Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BW7386 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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BW7386
Accuracy Constant Current LED Driver
FEATURES
Accuracy Constant Current
Low BOM Cost
Current Mode/Fixed Frequency Control
Gate Output Voltage Clamp
LED Open Protection(OVP)
Over Current Protection (OCP)
300mA Driving Capability for OUT Pin
APPLICATIONS
E 26/27, T5/T8 LED Lamp
O thers LED Lighting Applications
DESCRIPTION
The BW7386 is a highly-integrated, low startup
current, current mode, and fixed switching
frequency PWM controller. These functions enable
the LED driver to easily meet the accuracy average
LED current requirements. The integrated functions
also include the LED open protection, and internal
over temperature protection. The COMP pin
controls the duty by connected an RC
compensation network to ground and forming the
closed loop feedback control. To protect the
external power MOSFET from being damaged by
supply over voltage, the BW7386 OU T pin voltage is
clamped to about 17V. The BW7386 improves the
performance and reduces the cost of the LED driver.
It is a 6-pin SOT-26 package.
ORDER INFORMATION
BW 7386 - KF R
Bruckewell
Circuit Type
Shipping
R: Reel
T: Tube
KF:SOT-26
PIN CONFIGURATIONS (TOP VIEW)
Rev 2.0 Aug. 2013
1
http://www.Datasheet4U.com
1 page  
BW7386
Accuracy Constant Current LED Driver
ELECTRICAL CHARACTERISTICS
VCC=15V, TA= 25°C, unless otherwise specified.
Parameter
Symbol
Condition
SUPPLY VOLTAGE
Startup Current
Operating Current
VDD(ST)
VCOMP
VCC=UVLO on -1V
With 1nF load on OUT pin
Min Typ Max Unit
8 uA
1.5 2.5 mA
Operating Current
UVLO(off)
UVLO(on)
OVP Level on VCC Pin
VOLTAGE FEEDBACK
Feedback Reference Voltage
Tran-Conductance
Output Sink Current
Output Source Current
CURRENT SENSING
Input Over Voltage Protection
Open Loop Voltage, CS Pin Open
Leading-Edge Blanking Time
Delay to Output
SWITCHING FREQUENCY
Switching Frequency
Maximum Duty
Frequency Jitter Range
Temp. Stability
Voltage Stability
GATE DRIVER OUTPUT
Rising Time
Falling Time
VGATE-Clamp
IOPA
OVP
VFB
Io-sink
Io-source
FOSC
With 1nF load on OUT pin
Protection Tripped (OCP, OVP,
1 .2 1.8 mA
SCP,OTP)
7 8 8V
17 18 19 V
26 28 30 V
0.194 0.2 0.206 V
120 uS
12 uA
12 uA
0.8
5
4 10
1 00
V
V
nS
nS
-40 ~125
VCC=11V~25V
Load Capacitance = 1000pF
Load Capacitance = 1000pF
VCC=25V
42 45 48 KHz
90 %
+/-6 %
6%
1%
160 nS
80 nS
17 19 V
Rev 2.0 Aug. 2013
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet BW7386.PDF ] | |
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