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PDF FAN6224 Data sheet ( Hoja de datos )
| Número de pieza | FAN6224 | |
| Descripción | Synchronous Rectification Controller | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FAN6224 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
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July 2014
FAN6224
Synchronous Rectification Controller for Flyback and
Forward Freewheeling Rectification
Features
mWSaver™ Technology:
- Internal Green Mode to Stop SR Switching for
Lower No-Load Power Consumption
- 300 A Ultra-Low Green Mode Operating
Current
Synchronous Rectification Controller
Suited for High-Side and Low-Side of Flyback
Converters in QR, DCM, and CCM Operation
Suited for Forward Freewheeling Rectification
PWM Frequency Tracking with Secondary-Side
Winding Voltage Detection
140 kHz Maximum Operation Frequency
VDD Pin Over-Voltage Protection (OVP)
LPC Pin Open/Short Protection
RES Pin Open/Short Protection
RP Pin Open/Short Protection
Internal Over-Temperature Protection (OTP)
SOP-8 Package Available
Applications
AC-DC NB Adapters
Open-Frame SMPS
Description
FAN6224 is a secondary-side Synchronous Rectification
(SR) controller to drive SR MOSFET for improved
efficiency. The IC is suitable for flyback converters and
forward freewheeling rectification.
FAN6224 can be applied in Continuous or
Discontinuous Conduction Mode (CCM and DCM) and
Quasi-Resonant (QR) flyback converters based on a
proprietary linear-predict timing-control technique. The
benefits of this technique include a simple control
method without current-sense circuitry to accomplish
noise immunity.
With PWM frequency tracking and secondary-side
winding voltage detection, FAN6224 can operate in both
fixed- and variable-frequency systems up to 140kHz.
FAN6224 detects output load condition and determines
adjustable loading levels for Green Mode. In Green
Mode, the SR controller stops all SR switching operation
to reduce the operating current. Power consumption is
maintained at a minimum level in light-load condition.
Ordering Information
Part Number
FAN6224M
Operating
Temperature Range
-40°C to +105°C
Package
8-Lead, Small Outline Package (SOP-8)
Packing
Method
Tape & Reel
© 2013 Fairchild Semiconductor Corporation
FAN6224 • Rev. 1.0.1
www.fairchildsemi.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
VDD DC Supply Voltage
30 V
VLPC
Voltage on LPC Pin (TA=25°C)
-0.3 7.0
V
VRES Voltage on RES Pin (Continuously in -0.5 V) (TA=25°C)
-1.5 7.0
V
VRP Voltage on RP Pin (TA=25°C)
-0.3 7.0
V
PD Power Dissipation (TA=25°C)
ΘJA Thermal Resistance (Junction-to-Air)
ΘJC Thermal Resistance (Junction-to-Case)
0.8 W
151 °C/W
58 °C/W
TSTG
Storage Temperature Range
-55 150 °C
TL Lead Temperature (Soldering) 10s
260 °C
ESD
Electrostatic Discharge
Capability
Human Body Model, JESD22-A114
Charged Device Model, JESD22-C101
5500
2000
V
Notes:
1. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.
2. All voltage values, except differential voltages, are given with respect to GND pin.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
VLPC
VRES
VRP
Parameter
Voltage on LPC Pin
Voltage on RES Pin
Voltage on RP Pin
Condition
Continuous Operation
Min.
0.5
Max.
4.8
4.8
2.5
Unit
V
V
V
© 2013 Fairchild Semiconductor Corporation
FAN6224 • Rev. 1.0.1
5
www.fairchildsemi.com
5 Page 
Typical Performance Characteristics (Continued)
Figure 19. tMAX-PERIOD vs. Temperature
Figure 20. tMAX-PERIOD vs. Temperature
Figure 21. VLPC-SOURCE vs. Temperature
Figure 22. VRES-SOURCE vs. Temperature
Figure 23. tGREEN-ON vs. RRP
© 2013 Fairchild Semiconductor Corporation
FAN6224 • Rev. 1.0.1
Figure 24. tGREEN-OFF vs. RRP
www.fairchildsemi.com
11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet FAN6224.PDF ] | |
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