FSFR2100 Fairchild Semiconductor, FSFR2100 Datasheet

IC SWIT PROG OVP OCP 9SIP

FSFR2100

Manufacturer Part Number
FSFR2100
Description
IC SWIT PROG OVP OCP 9SIP
Manufacturer
Fairchild Semiconductor
Series
FPS™r
Datasheet

Specifications of FSFR2100

Output Isolation
Isolated
Frequency Range
94kHz ~ 106kHz
Voltage - Input
9.6 V ~ 25 V
Voltage - Output
500V
Power (watts)
400W
Operating Temperature
-40°C ~ 130°C
Package / Case
9-SIP
Output Voltage
24 V
Output Current
8.3 A
Output Power
450 W
Switching Frequency
300 KHz
Operating Temperature Range
- 40 C to + 130 C
Mounting Style
Through Hole
Duty Cycle (max)
52 %
Isolated/non-isolated
Isolated
For Use With
FEB212 - BOARD EVAL FOR FSFR2100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
FSFR2100
Manufacturer:
FAIRCHILD
Quantity:
32
Company:
Part Number:
FSFR2100,,10,SIP-9,FAIRCHILD
0
Part Number:
FSFR2100U
Manufacturer:
Fairchild Semiconductor
Quantity:
1 885
Part Number:
FSFR2100XS
Manufacturer:
RENESAS
Quantity:
2 500
© 2007 Fairchild Semiconductor Corporation
FSFR2100 • Rev.1.0.8
FSFR2100 —
for Half-Bridge Resonant Converters
Features
Applications
Ordering Information
Notes:
1.
2.
FSFR2100
Number
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
Variable Frequency Control with 50% Duty Cycle
for Half-bridge Resonant Converter Topology
High Efficiency through Zero Voltage Switching (ZVS)
Internal SuperFET™s with Fast-Recovery Type
Body Diode (t
Fixed Dead Time (350ns) Optimized for MOSFETs
Up to 300kHz Operating Frequency
Pulse Skipping for Frequency Limit (Programmable)
at Light-Load Condition
Remote On/Off Control Using Control Pin
Protection Functions: Over-Voltage Protection
(OVP), Over-Load Protection (OLP), Over-Current
Protection (OCP), Abnormal Over-Current Protection
(AOCP), Internal Thermal Shutdown (TSD)
PDP and LCD TVs
Desktop PCs and Servers
Adapters
Telecom Power Supplies
Audio Power Supplies
The junction temperature can limit the maximum output power.
Maximum practical continuous power in an open-frame design at 50°C ambient.
Part
Package
rr
=120ns)
9-SIP
Temperature
Fairchild Power Switch (FPS™)
-40 to +130°C
Operating
Junction
RDS
0.38Ω
(ON_MAX)
Description
The FSFR2100 is a highly integrated power switch
designed
converters. Offering everything necessary to build a
reliable and robust resonant converter, the FSFR2100
simplifies designs and improves productivity, while
improving performance. The FSFR2100 combines power
MOSFETs with fast-recovery type body diodes, a high-
side gate-drive circuit, an accurate current controlled
oscillator, frequency limit circuit, soft-start, and built-in
protection functions. The high-side gate-drive circuit has
a common-mode noise cancellation capability, which
guarantees
immunity. The fast-recovery body diode of the MOSFETs
improves
conditions, while minimizing the effect of the reverse
recovery.
technique dramatically reduces the switching losses and
efficiency is significantly improved. The ZVS also
reduces the switching noise noticeably, which allows a
small-sized Electromagnetic Interference (EMI) filter.
The FSFR2100 can be applied to various resonant
converter topologies, such as: series resonant, parallel
resonant, and LLC resonant converters.
Related Resources
AN-4151 — Half-Bridge LLC Resonant Converter Design
Using FSFR2100 Fairchild Power Switch (FPS
Maximum Output Power
(V
without Heatsink
IN
=350~400V)
for
Using
reliability
200W
stable
high-efficiency
the
operation
(1,2)
against
zero-voltage-switching
Power with Heatsink
(V
with
Maximum Output
half-bridge
abnormal
IN
=350~400V)
excellent
450W
www.fairchildsemi.com
May 2010
operation
)
resonant
(1,2)
(ZVS)
noise

FSFR2100 Summary of contents

Page 1

... The ZVS also reduces the switching noise noticeably, which allows a small-sized Electromagnetic Interference (EMI) filter. The FSFR2100 can be applied to various resonant converter topologies, such as: series resonant, parallel resonant, and LLC resonant converters. Related Resources AN-4151 — ...

Page 2

... Application Circuit Diagram Figure 1. Typical Application Circuit (LLC Resonant Half-bridge Converter) Block Diagram © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0 LVcc Control CON IC V CTR sense Figure 2. Internal Block Diagram KA431 μ 1.5 s www.fairchildsemi.com ...

Page 3

... This pin is the supply voltage of the control IC connection This is the supply voltage of the high-side gate-drive circuit IC This is the drain of the low-side MOSFET. Typically, a transformer is connected to this pin. CTR © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 Figure 3. Package Diagram Description 3 www.fairchildsemi.com ...

Page 4

... Pulse width is limited by maximum junction temperature. Thermal Impedance T =25°C unless otherwise specified. A Symbol θ Junction-to-Case Center Thermal Impedance (Both MOSFETs Conducting) JC © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 =25°C unless otherwise specified. A Parameter -V and V DL CTR Pin to Low-side Drain Voltage (3) ...

Page 5

... Control Pin Enable Threshold Voltage CONEN V V-I Converter Threshold Voltage RT f Output Oscillation Frequency OSC DC Output Duty Cycle f Internal Soft-Start Initial Frequency SS t Internal Soft-Start Time SS © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 Test Conditions I =200μ =200μ =10V (6) V =0V Diode ...

Page 6

... Dead-Time Control Section (7) D Dead Time T Notes: 6. This parameter, although guaranteed, is not tested in production. 7. These parameters, although guaranteed, are tested only in EDS (wafer test) process. © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 (Continued) Test Conditions V =4V CON V > 3.5V CON L-V > 21V CC Δ ...

Page 7

... Temp ( O C) Figure 6. High-Side V vs. Temperature 1.1 1.05 1 0.95 0.9 -50 - Temp ( O Figure 8. Low-Side V vs. Temperature © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 =25ºC. A 1.1 1.05 1 0.95 0 100 O C) Figure 5. Switching Frequency vs. Temperature 1.1 1.05 1 0.95 0 100 (HV ) Start ...

Page 8

... Temp ( O Figure 12. LV OVP Voltage vs. Temperature CC 1.1 1.05 1 0.95 0.9 -50 - Temp ( O Figure 14. CON Pin Enable Voltage vs. Temperature © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 (Continued) =25ºC. A 1.1 1.05 1 0.95 0 100 C) 1.1 1.05 1 0.95 0 100 C) 1.1 1.05 1 0.95 0.9 ...

Page 9

... Functional Description 1. Basic Operation FSFR2100 is designed to drive high-side and low-side MOSFETs complementarily with 50% duty cycle. A fixed dead time of 350ns is introduced between consecutive transitions, as shown in Figure 16. Figure 16. MOSFETs Gate Drive Signal 2. Internal Oscillator FSFR2100 employs a current-controlled oscillator, as shown in Figure 17. Internally, the voltage of R ...

Page 10

... Figure 19. FSFR2100 also has an internal soft-start for 3ms to reduce the current overshoot during the initial cycles, which adds 40kHz to the initial frequency of the external soft-start circuit, as shown in Figure 20. The initial frequency of the soft-start is given as: Ω Ω 5 × ISS 100 40 ( ...

Page 11

... Current Sensing Current Sensing Using Resistor: FSFR2100 senses drain current as a negative voltage, as shown in Figure 24 and Figure 25. Half-wave sensing allows low power dissipation in the sensing resistor, while full-wave sensing has less switching noise in the sensing signal Control sense Ids Figure 24. Half-Wave Sensing ...

Page 12

... sense p-p where V is the amplitude of the resonant capacitor Cr voltage. © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 6.6 LV reaches 23V, OVP is triggered. This protection used when auxiliary winding of the transformer to supply FPS™ is utilized. CC 6.7 the control IC in one package makes it easy for the control IC to detect the abnormal over-temperature of the MOSFETs ...

Page 13

... Application FPS™ Device LCD TV FSFR2100 Features High efficiency ( >94% at 400V Reduced EMI noise through zero-voltage-switching (ZVS) Enhanced system reliability with various protection functions © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 Input Voltage Range Rated Output Power 390V DC (340~400V ) DC input) DC Figure 29 ...

Page 14

... Primary-Side Inductance (L Primary-Side Effective Leakage (L For more detailed information regarding the transformer, visit sales@santronics-usa.com or +1-408-734-1878 (Sunnyvale, California USA). © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 (Continued) Figure 30. Transformer Construction Wire 0.08φ×88 (Litz Wire) 0.08φ×234 (Litz Wire) 0.08φ ...

Page 15

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2007 Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 Figure 31. 9-SIP Package 15 www.fairchildsemi.com ...

Page 16

... Fairchild Semiconductor Corporation FSFR2100 • Rev.1.0.8 16 www.fairchildsemi.com ...

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