LNK302P POWERINT [Power Integrations, Inc.], LNK302P Datasheet
LNK302P
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LNK302P Summary of contents
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... Wide Range HV DC Input Figure 1. Typical Buck Converter Application (See Application PRODUCT LNK302P or G LNK304P or G 120 mA 170 mA 120 mA 170 mA LNK305P or G 175 mA 280 mA 175 mA 280 mA LNK306P or G 225 mA 360 mA 225 mA 360 mA Table 1. Notes: 1. Typical output current in a non-isolated buck converter ...
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LNK302/304-306 BYPASS (BP) 6.3 V FEEDBACK 1. (FB) Figure 2a. Functional Block Diagram (LNK302). BYPASS (BP) 6.3 V FEEDBACK 1. (FB) T Figure 2b. Functional Block Diagram (LNK304-306 3/05 BYPASS PIN UNDER-VOLTAGE + ...
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Pin Functional Description DRAIN (D) Pin: Power MOSFET drain connection. Provides internal operating current for both start-up and steady-state operation. BYPASS (BP) Pin: Connection point for a 0.1 µF external bypass capacitor for the internally generated 5.8 V supply. FEEDBACK ...
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LNK302/304-306 600 500 V DRAIN 400 300 200 100 0 68 kHz 64 kHz 0 Time (µs) Figure 4. Frequency Jitter. power MOSFET is turned off for the remainder of that cycle. The leading edge blanking circuit inhibits the current ...
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RF1 INPUT D4 Optimize hatched copper areas ( ) for heatsinking and EMI. Figure 6. Recommended Printed Circuit Layout for LinkSwitch- Buck Converter Configuration. cycles are skipped. To provide overload protection if no cycles are ...
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LNK302/304-306 TOPOLOGY BASIC CIRCUIT SCHEMATIC High-Side Buck – Direct FB BP Feedback LinkSwitch- High-Side Buck – Optocoupler FB BP Feedback LinkSwitch- Low-Side + Buck – Optocoupler LinkSwitch-TN Feedback V IN ...
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TOPOLOGY BASIC CIRCUIT SCHEMATIC Low-Side Buck Boost – Optocoupler + Feedback LinkSwitch- Table 2 (cont). Common Circuit Configurations Using LinkSwitch-TN. leading edge current spikes, terminating the switching cycle prematurely and preventing full power delivery. Fast and ...
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LNK302/304-306 be included for better EMI performance and higher line surge withstand capability. Quick Design Checklist As with any power supply design, all LinkSwitch-TN designs should be verified for proper functionality on the bench. The following minimum tests are recommended: ...
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DRAIN Voltage .................................. ................ -0 700 V Peak DRAIN Current (LNK302).................200 mA (375 mA) Peak DRAIN Current (LNK304).................400 mA (750 mA) Peak DRAIN Current (LNK305).................800 mA (1500 mA) Peak DRAIN Current (LNK306).................1400 mA (2600 mA) FEEDBACK Voltage .........................................-0.3 ...
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LNK302/304-306 Parameter Symbol CONTROL FUNCTIONS (cont.) I CH1 BYPASS Pin Charge Current I CH2 BYPASS Pin V Voltage BP BYPASS Pin V Voltage Hysteresis BPH BYPASS Pin I Supply Current BPSC CIRCUIT PROTECTION I (See Current Limit LIMIT Note E) ...
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Parameter Symbol CIRCUIT PROTECTION (cont.) Leading Edge t Blanking Time LEB Thermal Shutdown T Temperature SD Thermal Shutdown T Hysteresis SHD OUTPUT ON-State R Resistance DS(ON) OFF-State Drain I Leakage Current DSS Breakdown Voltage BV DSS Rise Time t R ...
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LNK302/304-306 NOTES: A. Total current consumption is the sum of I switching) and the sum of I and Since the output MOSFET is switching difficult to isolate the switching current from the supply current at ...
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Typical Performance Characteristics 1.1 1.0 0.9 -50 - 100 125 150 Junction Temperature (°C) Figure 10. Breakdown vs. Temperature. 1.4 1.2 1.0 0.8 Normalized di/dt 0.6 0.4 0 Temperature (°C) Figure 12. ...
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LNK302/304-306 Typical Performance Characteristics (cont.) PART ORDERING INFORMATION LNK 304 3/05 1000 100 Scaling Factors: LNK302 0.5 LNK304 1.0 LNK305 2.0 LNK306 3 100 200 300 400 500 Drain Voltage (V) ...
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D S .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 .048 (1.22) .053 (1.35) .014 (.36) ⊕ .010 (.25) ...
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LNK302/304-306 Revision Notes C 1) Released Final Data Sheet Corrected Minimum On Time Added LNK302 Added lead-free ordering information Minor error corrections. 2) Renamed Feedback Pin Voltage parameter to Feedback Pin Voltage ...