FOD8321 datasheet(6/19 Pages) FAIRCHILD

Part #	FOD8321

Description	2.5A Output Current, Gate Drive Optocoupler in Optoplanar Wide Body SOP 5-Pin

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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FOD8321 Rev. 1.0.4

6

Switching Characteristics

Apply over all recommended conditions, typical value is measured at VDD = 30V, VSS = Ground, TA = 25°C unless

otherwise speciﬁed.

Notes:

9. tPHL propagation delay is measured from the 50% level on the falling edge of the input pulse to the 50% level of the

falling edge of the VO signal.

10. tPLH propagation delay is measured from the 50% level on the rising edge of the input pulse to the 50% level of the

rising edge of the VO signal.

11. PWD is defined as | tPHL – tPLH | for any given device.

12. The difference between tPHL and tPLH between any two FOD8321 parts under same operating conditions, with equal

loads.

13. Common mode transient immunity at output high is the maximum tolerable negative dVcm/dt on the trailing edge of

the common mode impulse signal, Vcm, to assure that the output will remain high (i.e. VO > 15.0V).

14. Common mode transient immunity at output low is the maximum tolerable positive dVcm/dt on the leading edge of

the common pulse signal, Vcm, to assure that the output will remain low (i.e. VO < 1.0V).

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Units

Figure

tPHL

Propagation Delay Time to

Logic Low Output(9)

IF = 10mA to 16mA, Rg = 10Ω,

Cg =10nF, f = 10kHz,

Duty Cycle = 50%

100

285

500

ns

10, 11,

12, 13,

14, 27

tPLH

Propagation Delay Time to

Logic High Output(10)

100

260

500

ns

10, 11,

12, 13,

14, 27

PWD

Pulse Width Distortion(11)

|tPHL – tPLH|

25

300

ns

PDD

(Skew)

Propagation Delay Difference

Between Any Two Parts(12)

-350

350

tR

Output Rise Time

(10% to 90%)

60

ns

27

tF

Output Fall Time

(90% to 10%)

60

ns

27

tULVO ON

ULVO Turn On Delay

IF = 10mA, VO > 5V

0.8

µs

tULVO OFF

ULVO Turn Off Delay

IF = 10mA, VO < 5V

0.4

µs

|CMH|

Common Mode Transient

Immunity at Output High

TA = 25°C, VDD = 30V,

IF = 10 to 16mA, VCM = 2000V

(13)

20

50

kV/µs

28

|CML|

Common Mode Transient

Immunity at Output Low

TA = 25°C, VDD = 30V, VF = 0V,

VCM = 2000V

(14)

20

50

kV/µs

28

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