Datasheet > FAN6204A

FAN6204A

更新时间： 2022-02-26 13:13:08

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
16页	1111K
描述
Synchronous Rectification Controller

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数据手册

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FAN6204A 数据手册

Electrical Characteristics

V_DD=15 V and T_A=25°C unless otherwise noted.

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

LPC Section (Continued)

V_LPC-CLAMP-HHigher Clamp Voltage⁽³⁾

4.2

V_LPC-DIS

LPC Voltage to Disable SR Gate

Debounce Time for Disable SR Gate

4.0

4.4

t_LPC-HIGH

s

RES Section

V_RES-EN

Threshold Voltage of V_RESto Enable SR MOSFET

Debounce Time to Disable RES Function

0.60

0.75

0.90

µs

t_RES-LOW

V_RES-CLAMP-HHigher Clamp Voltage⁽³⁾

K_RES-DROPRES Dropping Protection Ratio within One Cycle

t_RES-DROPDebounce Time for RES Voltage-Drop Protection

Internal Timing Section

1.5

µs

t_CT

Linear Operation Range of C_T

V_LPC=1.5 V

V_DD<5 V

V_DD>5 V

V_DD<5 V

V_DD>5 V

0.8

4.65

0.9

105

3.4

4.0

3.4

4.0

5.35

1.3

120

s

Linear Operation Range of LPC to

Charge C_T

V_LPC-OP

Linear Operation Range of RES to

Discharge C_T

V_RES-OP

Ratio_LPC-RESRatio Between LPC and RES

5.00

1.1

t_LPC-EN

t_gate-limit

Green Section

C_TCapacitor t_DISTime to Leave

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

µs

t_on-SR(n+1)< t_gate-limitx t_on-SR(n)

t_GREEN-OFF

f_S=65 kHz

4.60

4.25

5.35

4.80

6.10

5.35

µs

Green Mode

C_TCapacitor t_DISTime to Enter

Green Mode

t_GREEN-ON

t_GREEN-TIME-

Cycle Time to Enter Green Mode C_TDischarge Time < t_GREEN-ON

Times

enter

t_GREEN-TIME-

Cycle Time to Leave Green Mode C_TDischarge Time > t_GREEN-OFF

Times

µs

leave

t_GREEN-ENTERNo Gate Signal to Enter Green Mode⁽³⁾

Causal Function Section

Once t_S-PWM(n+1) > t_CAUSALxt_S-

t_CAUSAL

_PWM(n), SR Stops Switching and

Enter Green Mode

f_S=65 kHz  40 kHz

120

580

SR Turn-off Dead Time by Causal

Function

t_DEAD-CAUSAL

f_S=65 kHz

380

780

t_DEAD-CFRDead Time to Shrink SR ON Time CFR (Causal Function Regulator)

t_DEAD-RE-CFRSR ON Time Narrowed Down Width when t_DEAD-CFRTriggered

Internal Over-Temperature Protection Section

150

1.5

s

T_OTP

T_OTP-HYSTHysteresis Temperature for Internal OTP⁽³⁾

Note:

Internal Threshold Temperature for OTP⁽³⁾

140

°C

3. Guaranteed by design.

www.onsemi.com

FAN6204A • Rev. 1.1

1...4 5 678 9 10...16

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