Output Timing Characteristics

Output Timing Characteristics

Non-isolated Output Performance (measured at Vcc = 5 V, Rext = 1 kΩ)

Parameter	Symbol	Non-isolated
Output Low Voltage	VL	0.23 V
Output High Voltage	VH	4.95 V
Output Threshold High Voltage	VTHH	4.48 V
Output Threshold Low Voltage	VTHL	0.7 V
Cycle Rise Time	tR	2.6 μs
Cycle Fall Time	tF	0.23 μs
Opto Current		4.8 mA

 

Opto-isolated Output Performance (measured at Vcc = 3.3 V, Rext = 200 Ω)

		Opto-isolated
Parameter	Symbol	Load	No Load
Output Low Voltage	VL	1.44 V	1.47 V
Output High Voltage	VH	2.64 V	3.25 V
Output Threshold High Voltage	VTHH	2.52 V	3.07 V
Output Threshold Low Voltage	VTHL	1.56 V	1.65 V
Cycle Rise Time	tR	5.2 μs	24 μs
Cycle Fall Time	tF	28 μs	4.6 μs
Opto Current		3.08 mA	8.4 mA
Opto Isolator Delay (High to Low)		5.3 μs	5.5 μs
Opto Isolator Delay (Low to High)		12.7 μs	15.2 μs

 

Opto-isolated Output Performance (measured at Vcc = 5 V, Rext = 1 kΩ)

		Opto-isolated
Parameter	Symbol	Load	No Load
Output Low Voltage	VL	0.86 V	0.92 V
Output High Voltage	VH	2.29 V	5 V
Output Threshold High Voltage	VTHH	2.15 V	4.59 V
Output Threshold Low Voltage	VTHL	1.00 V	1.33 V
Cycle Rise Time	tR	12 μs	10.3 μs
Cycle Fall Time	tF	19.6 μs	17.2 μs
Opto Current		2.68 mA	3.9 mA
Opto Isolator Delay (High to Low)		3.9 μs	4.1 μs
Opto Isolator Delay (Low to High)		26.8 μs	25.1 μs