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EVBUM2520/D

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7

 BILL OF MATERIAL

Table 2. BILL OF MATERIAL FOR THE NCP4306 PUT

IN BOARD D2PAK 150 V

Designa-

tor

Qty

Description

Value

Tolerance

Footprint

Manufacturer

Manufacturer Part

Number

Substitution

Allowed

C1

1

Ceramic Capacitor

2.2 

m

F / 50 V

10%

1206

KEMET

C1206C225K5RACTU

Yes

CLLD

1

Ceramic Capacitor

1n

20%

0805

KEMET

C0805C102M5RACTU

Yes

CSNB

1

Ceramic Capacitor

1n2

5%

1206

TDK

Corporation

C3216C0G2J122J085

AA

Yes

IC1

1

Secondary Side

Synchronous

Rectification

Controller

NCP4306AAD

ZZZA

SOIC

08

ON

Semiconductor

NCP4306AADZZZAD

R2G

No

M1

1

N

Channel Power

MOSFET

FDB110N15A

D2PAK

ON

Semiconductor

FDB110N15A

Yes

RVCC

1

Resistor SMD

2.2 

W

1%

0805

YAGEO

RC0805FR

072R2L

Yes

RLLD

1

Resistor SMD

91 k

W

1%

0805

YAGEO

RC0805FR

0791KL

Yes

R

MIN_TOFF

1

Resistor SMD

27 k

W

1%

0805

YAGEO

RC0805FR

0727KL

Yes

R

MIN_TON

1

Resistor SMD

15 k

W

1%

0805

YAGEO

RC0805FR

0715KL

Yes

R

TRIG_PD

1

Resistor SMD

10 k

W

1%

0805

YAGEO

RC0805FR

0710KL

Yes

RSNB1

1

Resistor SMD

15 

W

1%

1206

YAGEO

RC1206FR

0715RL

Yes

RSNB2

1

Resistor SMD

NU

1206

Yes

NOTE: All components are Pb

Free.

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Содержание NCP4306

Страница 1: ...e NCP4306 features a very precise 0 mV turn off comparator that supports even very low current flowing through the MOSFET even when very low RDSON synchronous MOSFETs is used NCP4306 can be used in application working in CCM without external synchronization thanks to very low propagation delay and strong driver Key Features Precise Turn off Comparator Wide Input Voltage Range High Operation Freque...

Страница 2: ...d can be connected in circuit where the rectification diode is in the positive or negative branch When connection to a positive branch is used it is necessary to use an external power supply or auxiliary winding with rectification to provide power to the evaluation board VCC should be referenced to A1 or A2 points ...

Страница 3: ...aced as close as possible to the VCC and GND pins Resistors RMIN_TON and RMIN_TOFF are used to set the protection interval when the synchronous MOSFET is turned on and off It may be needed to adjust them according to used SMPS RLLD sets light load detection time and CLLD is optional for LLD voltage decoupling Components CSNB RSNB1 and RSNB2 form a snubber circuit Transistor M1 is 150 V VDS capable...

Страница 4: ...ous driver path to the MOSFET was done with very low resistance and parasitic inductance to minimize emissions and minimize turn on and turn off times The same is true for the CS pin For the CS pin a kelvin contact was done to be able to sense the voltage directly at the drain Improper connection of the GND and CS connects can impact the turn off process especially when a very low RDSON MOSFET is ...

Страница 5: ...EVBUM2520 D www onsemi com 5 Figure 6 Top Side Components Figure 7 Bottom Side Components ...

Страница 6: ...EVBUM2520 D www onsemi com 6 Figure 8 Evaluation Board Photos ...

Страница 7: ...cts including compliance with all laws regulations and safety requirements or standards regardless of any support or applications information provided by ON Semiconductor Typical parameters which may be provided in ON Semiconductor data sheets and or specifications can and do vary in different applications and actual performance may vary over time All operating parameters including Typicals must b...

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