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EPC90147

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Measure Waveforms

 (continued0

Figure 13: Measured inductor current and switch node waveforms when operating from  

48 V at 500 kHz and delivering 10 A into a 12 V load

Figure 14: Measured inductor current and switch node waveforms when operating from  

48 V at 500 kHz and delivering 15 A into a 12 V load

5 A/div

10 V/div

500 ns/div

10 V/div

10 ns/div

Inductor

current

Switch

node

10 V/div

10 ns/div

Inductor

current

Switch

node

5 A/div

10 V/div

500 ns/div

Содержание EPC90147

Страница 1: ...Development Board EPC90147 Quick Start Guide 100VHalf bridgewithGateDrive UsingEPC23102 Revision 1 0...

Страница 2: ...k start guide Table 1 Performance Summary TA 25 C EPC90147 Symbol Parameter Conditions Min Nominal Max Units VDD Gate Drive Input Supply Range 7 5 12 V VIN Bus Input Voltage Range 1 80 V IOUT Switch N...

Страница 3: ...te jumper positions for J630 mode selection as shown in figure 2 a for a single input buck converter blue jumper across pins 1 2 of J630 b for a single input boost converter blue jumpers across pins 3...

Страница 4: ...te drive supply to VDD J1 Pin 1 and ground return to GND J1 Pin 2 indicated on the bottom side of the board 4 With power off connect the input PWM control signal to PWM1 and or PWM2 according to the i...

Страница 5: ...3 With power off connect the gate drive supply to VDD J1 Pin 1 and ground return to GND J1 Pin 2 indicated on the bottom side of the board 4 With power off connect the input PWM control signal to PWM...

Страница 6: ...ve voltage probes e g TPP1000 measuring switch node using MMCX connector probe adaptor is available PN 206 0663 xx NOTE For information about measurement techniques the EPC website offers AN023 Accura...

Страница 7: ...d with three mechanical spacers that can be used to easily attach a heat spreader or heatsink as shown in figure 9 a and only requires a thermal interface material TIM a custom shape heat spreader hea...

Страница 8: ...onductance between the FETs and the attached heat exchanger The choiceofTIMneedstoconsiderthefollowingcharacteristics Mechanical compliance During the attachment of the heat spreader the TIM underneat...

Страница 9: ...ELECTRICAL PERFORMANCE Measure Waveforms Table 2 Test conditions Parameter Max Units Regulated Input voltage 48 V Regulated Output voltage 12 V Switching frequency fS 500 1000 1500 kHz Inductor mounte...

Страница 10: ...veforms when operating from 48 V at 500 kHz and delivering 10 A into a 12 V load Figure 14 Measured inductor current and switch node waveforms when operating from 48 V at 500 kHz and delivering 15 A i...

Страница 11: ...Setting Condition fSW 500 kHz fSW 1 MHz Enabled nEN low VIN 48 V 40 mA 58 mA Disabled nEN high 3 6 mA 5 1 mA Figure 15 Measured efficiency and power loss operating at various switching frequencies and...

Страница 12: ...wing the case temperature when operating under the following conditions fS 1 MHz IOUT 17 A output 25 C ambient and high airflow Figure 18 Measured thermal image showing the case temperature when opera...

Страница 13: ...thatarenotRoHScompliant EfficientPowerConversionCorpora tion EPC makesnoguaranteethatthepurchasedboardis100 RoHScompliant TheEvaluationboard orkit isfordemonstrationpurposesonlyandneithertheBoardnorth...

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