IRAC1166-100W International Rectifier, IRAC1166-100W Datasheet

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IRAC1166-100W

Manufacturer Part Number
IRAC1166-100W
Description
BOARD DEMO 100W FOR IR1166
Manufacturer
International Rectifier
Datasheets

Specifications of IRAC1166-100W

Main Purpose
AC/DC, Secondary Side
Outputs And Type
1, Isolated
Power - Output
100W
Voltage - Output
16V
Current - Output
6.25A
Voltage - Input
90 ~ 264VAC
Regulator Topology
Flyback
Board Type
Fully Populated
Utilized Ic / Part
IR1166S, IRF7853
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency - Switching
-
10 Ang Mo Kio Street 65, #03-18 TechPoint, Singapore 569059
Reference Design # 0618
IRAC1166-100W
+16V Low-side Smart Rectification
100W Flyback Demo Board
User’s Guide
by
ISRAEL SERRANO
18 August 2006
Rev.1A
18 August 2006
RD#0618
Page 1 of 24
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105
http://www.irf.com/ Data and specifications subject to change without notice.

Related parts for IRAC1166-100W

IRAC1166-100W Summary of contents

Page 1

... Ang Mo Kio Street 65, #03-18 TechPoint, Singapore 569059 Reference Design # 0618 IRAC1166-100W +16V Low-side Smart Rectification 100W Flyback Demo Board ISRAEL SERRANO Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 http://www.irf.com/ Data and specifications subject to change without notice. ...

Page 2

... Transformer turns ratio, Duty Cycle and Secondary Current Relationship Chart 9.2 IR1166 100W +16V SR Demo Board Power Transformer Specs 10.0 IRAC1166-100W +16V Demo Board Bill of Materials (BOM) Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 http://www ...

Page 3

... IC approach and study the practical limits of the efficiency improvements vs. the normal rectification method. 2.0 GENERAL DESCRIPTION The IRAC1166-100W demo board is a universal-input flyback converter with single DC output capable of delivering continuous 100W (@ +16V x 6.25A) during active rectification mode. This demo board is primarily designed to study synchronous rectification using IR1166 in low-side configuration to take advantage of simpler derivation of Vcc supply from converter’ ...

Page 4

... FIGURE 1. IRAC1166-100W SCHEMATIC DIAGRAM Vout-tp L2 40uH 1000UF/25V 1500UF/25V 1500UF/25V 2 0 Rp2 47K optoA Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 http://www.irf.com/ Data and specifications subject to change without notice. Rs20 Rs23 430R optoK 47K ...

Page 5

... IRAC1166-100W Demo Board Pictures Figure 2A. Top side of the IRAC1166-100W Demo Board Figure 2B. Bottom side of the IRAC1166-100W Demo Board AC Input Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 http://www.irf.com/ Data and specifications subject to change without notice. ...

Page 6

... PCB Layout for IRAC1166-100W Figure 3A. Top layer etch with silkscreen print Figure 3B. Bottom layer etch with silkscreen print. Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 http://www.irf.com/ Data and specifications subject to change without notice. ...

Page 7

CIRCUIT DESCRIPTION The PCB design is basically optimized as a test platform to evaluate of active rectification using Smart synchronous rectification and as well as basic features of flyback converter operating in quasi-resonant mode. This demo board has 2-pin ...

Page 8

TEST CONNECTION AND SETUP DIAGRAM 4.1 Recommended setup for Voltage and Current probing Fig. 4A Direct gate voltage probing using tip & gnd spring. Fig. 4B Recommended probing of secondary current waveform. Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 ...

Page 9

CIRCUIT FEATURES 5.1 OVT setting: The Offset Voltage Threshold can be easily selected by changing the position of jumper J3 according to system mode of operation as shown on Table 1 below. Since the demo board is practically designed ...

Page 10

Mosfet Selection Design Tips Application note AN1087 has made it easy to understand the calculations required in flyback sync-rect driving circuits using IR1166 IC. Choosing the right mosfet(s) to satisfy the performance–cost requirement of any sync rect design should ...

Page 11

TEST WAVEFORMS 6.1.1 Transient Test Fig Vacin startup @ no load. Fig 6B - 265 Vacin –startup @ no load. Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 ...

Page 12

Fig Vacin 100W full load startup. Fig 6D - 265 Vacin 100W full load startup. Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 http://www.irf.com/ Data and specifications subject to ...

Page 13

Fig 6E - Power down @ 90Vacin @ 100W full load Fig 6F - Power down @ 265Vacin @ 100W full load Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 http://www.irf.com/ Data ...

Page 14

Static Load Test Fig 90Vac in, 16Vout / no load (recaptured – closer view) Fig 265Vac in, 16Vout / no load (recaptured – closer view) Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El ...

Page 15

Fig 90Vacin, 16Vout / 6.25A full 100W load (recaptured – closer view) Fig 265Vacin, 16Vout / 6.25A full 100W load (recaptured – closer view) Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California ...

Page 16

Ripple & Noise Measurement Vout R&N : ~337mVpp Iout ( 5A/div) : 6.25A Fig. 6K 90Vacin, Ripple & Noise 16Vout / 6.25A full 100W load Ch1 :Vin AC (100V/div) Ch2 : Output R&N (100mV/div) Ch4 (x10A/V): Iout ( 2A/div) ...

Page 17

Dynamic Load Test ( 0 – 100% rated load, +/- 800mA/usec) Vout R&N : 812mVpp Iout ( 5A/div) Fig. 6O 90Vacin, Ripple & Noise +16Vout , 6.25A 5msec, 0A 5msec Ch1 :Vin AC (100V/div) Ch2 : Output R&N (200mV/div) ...

Page 18

Startup & UVLO Test Ch1 : Vin DC 50V/div, Ch2 : Vgate Fig. 6S – Startup at 90Vacin, full load Fig. 6T – Power down at 90Vacin, full load Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El ...

Page 19

... Bounce IRAC1166-100W Demo Board Figure 7.1. Output Voltage vs. Load Current Characteristic Curve Rev.1A 18 August 2006 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 http://www ...

Page 20

... Load Current Fig. 7.2A System Efficiency with OVT = Gnd 7.3 Thermal Verification IRAC1166-100W Ambient Temp IR1166 (SO-8 IC) SR1 (IRF7853 SO8 FET) SR2 (IRF7853 SO8 FET) Q1 (IRF22N60K) DP1 (UF5407) Snubber diode 330uF/400V MXR Bulk Ecap Power transformer (PQ3535) Input bridge rectifier ...

Page 21

Summary : This demo board showcases the performance of IR1166 SmartRectifier Control IC to drive mosfets (as synchronous rectifiers) by simple fast-rate direct-voltage-sensing technique. It also featured the flexibility of the IC to cope with different current conduction modes ...

Page 22

... IRAC1166-100W +16V SR Demo Board Power Transformer Specification Winding turns 2 x AWG#20 Winding turns 3 x TIW (0.55 mm) Winding turns 3 x TIW (0.55 mm) Winding turns AWG#30 Winding turns 3 x TIW (0.55 mm) Winding turns 2 x AWG#20 Core type : PQ3535 Ferrite material : PC44 TDK / Nicera equivalent ...

Page 23

... IRAC1166-100W +16V Demo Board Bill of Material (BOM) NOTE Through-hole Date : Item # Qty. Value Part Ref 2-PIN CON1 2 1 4-PIN CON2 3 1 220NF/275V CP1 4 1 4NF7/1KV CP2 5 1 330UF/400V CP3 4NF7/1KV CP4 7 1 100UF/35V CP5 8 1 0.1UF CP6 9 1 470PF 1KV ...

Page 24

LED LED1 42 1 IRFP22N60K 10R RP1 44 1 47K 2W RP2 45 1 22R RP3 46 1 3k3 RP4 RP5 48 1 910K RP6 49 2 ...

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