Intersil ISL6446ADEMO1Z Скачать руководство пользователя страница 8

Application Note 1822

AN1822.1

May 7, 2015

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8

ISL6446ADEMO1Z Test Report

FIGURE 10. START-UP

FIGURE 11. START-UP

FIGURE 12. SHUTDOWN

FIGURE 13. SHUTDOWN (UVLO VOLTAGE 7.4V)

5V

3.3V

V

IN

V

IN

 = 12V, NO LOAD START-UP

5V

3.3V

V

IN

V

IN

 = 12V, FULL LOAD START-UP

5V

3.3V

V

IN

V

IN

 = 12V, NO LOAD SHUTDOWN

5V

3.3V

V

IN

V

IN

 = 12V, FULL LOAD SHUTDOWN

Содержание ISL6446ADEMO1Z

Страница 1: ...output current Total power of the demo board is limited by thermal conditions Evaluation Board Features 12V input voltage Preset 5V and 3 3V output 20A output current each channel Two in 1 PWM control...

Страница 2: ...troduction 1 Evaluation Board Features 1 Evaluation Board Specifications 1 Terminal Functions 3 Undervoltage Lockout Circuit 3 ISL6446ADEMO1Z Schematic 5 PCB Layout 6 ISL6446ADEMO1Z Bill of Materials...

Страница 3: ...tage to 12V Monitor input current If input current exceeds 100mA turn off power supply and look for shorts 4 Confirm VOUT1 3 3V VOUT2 5V 5 Slowly increase the load on VOUT to 15A Verify VOUT1 3 3V VOU...

Страница 4: ...cy for DC DC VIN 12V Note 1 IOUT1 IOUT2 2A 93 39 IOUT1 IOUT2 4A 95 18 IOUT1 IOUT2 8A 95 87 IOUT1 IOUT2 12A 95 53 IOUT1 IOUT2 16A 94 88 IOUT1 IOUT2 20A 93 99 Vr1 VOUT1 Ripple Peak to peak No load 30 mV...

Страница 5: ...20 C43 1UF C13 0 01UF R5 68K R2 10K Q6 C16 1UF R12 100K R1 10K R9 1 3K C8 0 47UF C19 22UF R11 56K R14 51K R4 15K C3 1000PF C9 1000PF C42 1UF C12 1000PF R19 20 Q9 C18 0 1UF R8 10K C28 47UF Q7 C29 820U...

Страница 6: ...Application Note 1822 AN1822 1 May 7 2015 Submit Document Feedback 6 PCB Layout FIGURE 6 SILK SCREEN TOP FIGURE 7 SILK SCREEN BOTTOM FIGURE 8 PCB TOP FIGURE 9 PCB BOTTOM...

Страница 7: ...UM POLYMER 3 5mmLS ROHS NICHICON SER2011 202MLB 2 ea L1 L2 COIL PWR INDUCTOR SMD 18 7X19 1 2 0 H 20 37A 1 2m ROHS COILCRAFT 1 640385 0 1 ea J1 CONN HEADER TH 1X10 NYLON R A 0 156mmPITCH ROHS TE CONNEC...

Страница 8: ...L6446ADEMO1Z Test Report FIGURE 10 START UP FIGURE 11 START UP FIGURE 12 SHUTDOWN FIGURE 13 SHUTDOWN UVLO VOLTAGE 7 4V 5V 3 3V VIN VIN 12V NO LOAD START UP 5V 3 3V VIN VIN 12V FULL LOAD START UP 5V 3...

Страница 9: ...100 120 140 160 180 LOAD POWER W POWER LOSS W FULL LOAD 5V 20A 3 3V 20A 4 96 4 97 4 98 4 99 5 00 5 01 5 02 5 03 5 04 0 2 4 6 8 10 12 14 16 18 20 22 OUTPUT CURRENT A OUTPUT VOLTAGE V 3 30 3 31 3 32 3...

Страница 10: ...OFF HIGH SIDE MOS TURNS ON THERE IS ENOUGH DEAD TIME LGATE PHASE FULL LOAD LOW SIDE MOS TURNS OFF HIGH SIDE MOS TURNS ON THERE IS ENOUGH DEAD TIME LGATE PHASE PHASE 5V AC COUPLED VIN 12V NO LOAD OUTPU...

Страница 11: ...FIGURE 27 10A 15A 2 5A s PEAK TO PEAK RIPPLE 227mV FIGURE 28 5A 10A 2 5A s PEAK TO PEAK RIPPLE 200mV FIGURE 29 10A 15A 2 5A s PEAK TO PEAK RIPPLE 205mV 5V OUTPUT 50m DIV AC COUPLED 5VAC 20A LOAD HIGH...

Страница 12: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Intersil ISL6446ADEMO1Z...

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