lnk362 Power Integrations, Inc., lnk362 Datasheet
lnk362
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lnk362 Summary of contents
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... LinkSwitch-XT incorporates a 700 V power MOSFET, oscillator, simple ON/OFF control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The startup ® a) Clampless fl yback converter with LNK362 b) Flyback converter with LNK363/4 Figure 1. Typical Application with LinkSwitch-XT. PRODUCT LNK362P/G/D ...
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... LNK362-364 BYPASS (BP) 6.3 V JITTER OSCILLATOR FEEDBACK (FB) Figure 2. Functional Block Diagram. Pin Functional Description DRAIN (D) Pin: Power MOSFET drain connection. Provides internal operating current for both startup and steady-state operation. BYPASS (BP) Pin: Connection point for a 0.1 μF external bypass capacitor for the internally generated 5 ...
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... Figure 4 illustrates the frequency jitter. Feedback Input Circuit The feedback input circuit at the FB pin consists of a low impedance source follower output set at 1.65 V for LNK362 and 1.63 V for LNK363/364. When the current delivered into this pin exceeds 49 μA, a low logic level (disable) is generated at the output of the feedback circuit ...
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... Figure Universal Input CV Adapter Using LNK362. Applications Example Adapter The schematic shown in Figure typical implementation of a universal input, 6.2 V ±7%, 322 mA adapter using LNK362. This circuit makes use of the Clampless technique to eliminate the primary clamp components and reduce the cost and complexity of the circuit. ...
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... EMI. The following requirements are recommended for a universal input or 230 VAC only Clampless design Clampless design should only be used for P ** ≤ using the LNK362 † and For designs where P used to ensure adequate primary intra-winding capacitance in the range pF. 3. For designs where 2 < ...
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... LNK362-364 TOP VIEW Capacitor OUT - Figure 6. Recommended Printed Circuit Layout for LinkSwitch-XT using P Package in a Flyback Converter Confi guration. Bypass Capacitor C BP The BYPASS pin capacitor should be located as near as possible to the BYPASS and SOURCE pins. ...
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... LinkSwitch-XT SOURCE pin temperature of does not exceed 105 °C is recommended to allow for these variations. DS specifi cation Design Tools DSS Up-to-date information on design tools can be found at the Power Integrations web site: www.powerint.com. LNK362-364 Input Filter Capacitor - + HV DC INPUT BP ) for optimum ...
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... LNK362-364 DRAIN Voltage .................................. .............-0 700 V Peak DRAIN Current: LNK362................200 mA (375 mA) LNK363/364.........400 mA (750 mA) FEEDBACK Voltage ........................................... -0 FEEDBACK Current ...................................................100 mA BYPASS Voltage.................................................. -0 Storage Temperature .....................................-65 °C to 150 °C ................-40 °C to 150 °C Operating Junction Temperature (3) ....................................................... 260 °C (4) Lead Temperature Thermal Impedance Package: ) ........................... 70 ° ...
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... ° LNK364 100 ° 6 ≥ 560 125 ° LNK362-364 Min Typ Max Units μA 68 130 140 150 195 210 225 mA 233 250 268 2199 2587 4948 5821 7425 ...
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... J See Figure 8 (Unless Otherwise Specifi ≥ °C See Note See Figure 10 LNK362 °C J See Note I LNK363-364 and I when FEEDBACK pin voltage is ≥2 V (MOSFET not S1 DSS when FEEDBACK pin is shorted to SOURCE (MOSFET switching). DSS specifi cation by ramping the DRAIN pin voltage up DSS ...
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... VOLTAGE 10 Figure 9. LinkSwitch-XT Duty Cycle Measurement. 470 Ω MAX (internal signal) 90 DRAIN OSC PI-2048-033001 Figure 10. LinkSwitch-XT Output Enable Timing. LNK362-364 470 kΩ 0.1 μF PI-3490-060204 PI-3707-112503 2-11 11 Rev. D 02/07 ...
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... Junction Temperature (°C) 1.4 1.2 1.0 0.8 Normalized Normalized Current TBD di/ Limit = 1 0.6 30 mA/μs 140 mA LNK362 LNK363 42 mA/μs 210 mA LNK364 50 mA/μs 250 mA 0.4 0 Normalized di/dt 25 °C 100 °C Scaling Factors: LNK362 0.5 LNK363 0.8 LNK364 1 DRAIN Voltage (V) 5 ...
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... Plastic Surface Mount DIP P Plastic DIP D Plastic SO-8 Lead Finish N Pure Matte Tin (Pb-Free) Tape & Reel and Other Options Blank Standard Confi gurations Tape & Reel pcs minimum for G Package. 2.5 k pcs TL for D Package. Not available for P Package. LNK362-364 600 Rev. D 02/07 2-13 13 ...
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... LNK362-364 ⊕ .004 (.10) -E- .240 (6.10) .260 (6.60) Pin 1 .367 (9.32) -D- .387 (9.83) .125 (3.18) .145 (3.68) -T- SEATING PLANE .100 (2.54) BSC .014 (.36) ⊕ .010 (.25) M .022 (.56) ⊕ .004 (.10) -E- .240 (6.10) .260 (6.60) Pin 1 .100 (2.54) (BSC) .367 (9.32) -D- .387 (9.83) .125 (3.18) .145 (3.68) .032 (.81) .048 (1.22) .053 (1.35) .037 (.94) ...
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... Package outline exclusive of mold flash and metal burr. 4.90 (0.193) 3. Package outline inclusive of plating thickness. 4. Datums A and determined at datum plane H. 5. Controlling dimensions are in millimeters. Inch dimensions + are shown in parenthesis. Angles in degrees. 0.60 (0.024) LNK362-364 DETAIL A GAUGE PLANE 0.25 (0.010) BSC 0.40 (0.016) 1 ...
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... LNK362-364 Revision Notes B 1) Released Final Data Sheet Corrected Application Example section Added SO-8C package. For the latest updates, visit our website: www.powerint.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein ...