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PDF FL7930 Data sheet ( Hoja de datos )
| Número de pieza | FL7930 | |
| Descripción | Single-Stage Flyback and Boundary-Mode PFC | |
| Fabricantes | Fairchild Semiconductor | |
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March 2011
FL7930
Single-Stage Flyback and Boundary-Mode PFC
Controller for Lighting
Features
Additional PFC-Ready Function (FL7930C Only)
Input-Voltage-Absent-Detection Circuit
Maximum Switching Frequency Limitation
Internal Soft-Start with Overshoot Prevention
Internal Total Harmonic Distortion (THD) Optimizer
Precise Adjustable Output Over-Voltage Protection
Additional OVP Detection Pin (FL7930B Only)
Open-Feedback Protection and Disable Function
Zero-Current Detector
150µs Internal Startup Timer
MOSFET Over-Current Protection (OCP)
Under-Voltage Lockout with 3.5V Hysteresis
Low Startup and Operating Current
Totem-Pole Output with High State Clamp
+500/-800mA Peak Gate Drive Current
8-Pin Small Outline Package (SOP)
Applications
Ballast
General LED Lighting
Industrial, Commercial, and Residential Fixtures
Outdoor Lighting: Street, Roadway, Parking,
Construction and Ornamental LED Lighting Fixtures
Description
The FL7930 is an active Power Factor Correction (PFC)
controller for low-to high-power lumens applications that
operate in Critical Conduction Mode (CRM). It uses a
voltage-mode PWM that compares an internal ramp
signal with the error amplifier output to generate a
MOSFET turn-off signal. Because the voltage-mode
CRM PFC controller does not need rectified AC line
voltage information, it saves the power loss of an input
voltage sensing network necessary for a current-mode
CRM PFC controller.
FL7930 provides over-voltage, open-feedback, over-
current, input-voltage-absent detection, and under-
voltage lockout protections. The FL7930 can be
disabled if the INV pin voltage is lower than 0.45V and
the operating current decreases to a very low level.
Using a new variable on-time control method, THD is
lower than the conventional CRM boost PFC ICs.
The FL3930B provides an additional OVP pin that can
be used to shut down the boost power stage when
output voltage exceeds OVP level due to damaged
resistors connected at the INV pin. The FL7930C
provides a PFC-ready pin can be used to trigger other
power stages when PFC output voltage reaches the
proper level (with hysteresis).
Ordering Information
Part Number
Operating
Temperature Range
Top Mark
Package
FL7930BM
FL7930BMX
FL7930CM
FL7930CMX
-40 to +125°C
FL7930B
FL7930C
8-Lead Small Outline Package (SOP)
© 2011 Fairchild Semiconductor Corporation
FL7930 • Rev. 1.0.0
Packing
Method
Rail
Tape & Reel
Rail
Tape & Reel
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/
1 page  
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
Parameter
Min. Max. Unit
VCC
IOH, IOL
ICLAMP
IDET
VIN
TJ
TA
TSTG
ESD
Supply Voltage
Peak Drive Output Current
Driver Output Clamping Diodes VO>VCC or VO<-0.3V
Detector Clamping Diodes
Error Amplifier Input, Output, OVP Input, ZCD, RDY, and OVP Pins(1)
CS Input Voltage(2)
Operating Junction Temperature
Operating Temperature Range
Storage Temperature Range
Electrostatic Discharge
Capability
Human Body Model, JESD22-A114
Charged Device Model, JESD22-C101
-800
-10
-10
-0.3
-10
-40
-65
VZ
+500
+10
+10
8.0
6
+150
+125
+150
2.5
2.0
V
mA
mA
mA
V
°C
°C
°C
KV
Notes:
1. When this pin is supplied by external power sources by accident, its maximum allowable current is 50mA.
2. In case of DC input, acceptable input range is -0.3V~6V: within 100ns -10V~6V is acceptable, but electrical
specifications are not guaranteed during such a short time.
Thermal Impedance
Symbol
Parameter
Min.
JA Thermal Resistance, Junction-to-Ambient(3)
150
Note:
3. Regarding the test environment and PCB type, please refer to JESD51-2 and JESD51-10.
Max.
Unit
°C/W
© 2011 Fairchild Semiconductor Corporation
FL7930 • Rev. 1.0.0
5
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/
5 Page 
Typical Performance Characteristics
Figure 19. Output Voltage High (VOH) vs. TA
Figure 20. Output Voltage Low (VOL) vs. TA
Figure 21. Restart Timer Delay (tRST) vs. TA
Figure 22. OVP Threshold at OVP Pin (VOVP,OVP) vs. TA
Figure 23. Output Saturation Voltage (VRDY,SAT) vs. TA
Figure 24. OVP Threshold Voltage (VOVP) vs. TA
© 2011 Fairchild Semiconductor Corporation
FL7930 • Rev. 1.0.0
11
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet FL7930.PDF ] | |
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