FAN6204AMX datasheet(7/16 Pages) ONSEMI

Teilenummer	FAN6204AMX

Bauteilbeschribung	Synchronous Rectification Controller

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Hersteller	ONSEMI [ON Semiconductor]

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FAN6204A

• Rev. 1.1

6

Electrical Characteristics

VDD=15 V and TA=25°C unless otherwise noted.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

LPC Section (Continued)

VLPC-CLAMP-H Higher Clamp Voltage(3)

6

V

VLPC-DIS

LPC Voltage to Disable SR Gate

4.0

4.2

4.4

V

tLPC-HIGH

Debounce Time for Disable SR Gate

1

s

RES Section

VRES-EN

Threshold Voltage of VRES to Enable SR MOSFET

0.60

0.75

0.90

V

tRES-LOW

Debounce Time to Disable RES Function

1

2

µs

VRES-CLAMP-H Higher Clamp Voltage(3)

6

V

KRES-DROP

RES Dropping Protection Ratio within One Cycle

90

%

tRES-DROP

Debounce Time for RES Voltage-Drop Protection

1.5

µs

Internal Timing Section

tCT

Linear Operation Range of CT

VLPC=1.5 V

27

30

33

s

VLPC-OP

Linear Operation Range of LPC to

Charge CT

VDD<5 V

0.8

3.4

V

VDD>5 V

0.8

4.0

V

VRES-OP

Linear Operation Range of RES to

Discharge CT

VDD<5 V

0.8

3.4

V

VDD>5 V

0.8

4.0

V

RatioLPC-RES Ratio Between LPC and RES

4.65

5.00

5.35

tLPC-EN

Minimum LPC Time to Enable SR Switching, VLPC-HIGH>VLPC-EN

0.9

1.1

1.3

µs

tgate-limit

ton-SR(n+1)< tgate-limitx ton-SR(n)

105

120

%

Green Section

tGREEN-OFF

CT Capacitor tDIS Time to Leave

Green Mode

fS=65 kHz

4.60

5.35

6.10

µs

tGREEN-ON

CT Capacitor tDIS Time to Enter

Green Mode

fS=65 kHz

4.25

4.80

5.35

µs

tGREEN-TIME-

enter

Cycle Time to Enter Green Mode

CT Discharge Time < tGREEN-ON

3

Times

tGREEN-TIME-

leave

Cycle Time to Leave Green Mode

CT Discharge Time > tGREEN-OFF

7

Times

tGREEN-ENTER No Gate Signal to Enter Green Mode(3)

75

µs

Causal Function Section

tCAUSAL

Once tS-PWM(n+1) > tCAUSALxtS-

PWM

(n), SR Stops Switching and

Enter Green Mode

fS=65 kHz  40 kHz

120

%

tDEAD-CAUSAL

SR Turn-off Dead Time by Causal

Function

fS=65 kHz

380

580

780

ns

tDEAD-CFR

Dead Time to Shrink SR ON Time

CFR (Causal Function Regulator)

150

ns

tDEAD-RE-CFR SR ON Time Narrowed Down Width when tDEAD-CFR Triggered

1.5

s

Internal Over-Temperature Protection Section



TOTP

Internal Threshold Temperature for OTP(3)

140

°C

TOTP-HYST

Hysteresis Temperature for Internal OTP(3)

20

°C

Note:

3.

Guaranteed by design.

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