Fairchild manual Typical Performance Curves, HCPL-3700 AC/DC to Logic Interface

Typical Performance Curves
	Fig. 1 Logic Low Supply Current vs. Operating Supply Voltage												Fig. 2 Input Current vs. Input Voltage
(mA)		4.0										50
		3.5										45	DC (Pins 1,2 shorted together
CURRENTSUPPLY											mA)(CURRENT	40	pins 3,4 shorted together)
																	DC (Pins 1 & 4 Open)
		3.0
												35
		2.5										30
												25
LOWLOGIC		2.0									I-INPUTIN	20
		1.5										15
												10
		1.0										5
-		0.5										0					AC (pins 2 & 3 Open)
CCL												-5
I		0.0
												-10
		4	6	8	10	12	14	16	18	20		0	2	4	6	8	10	12	14

VCC - OPERATING SUPPLY VOLTAGE (V) VIN - INPUT VOLTAGE (V)

HCPL-3700 AC/DC to Logic Interface

Fig. 3 Input Current/Low Level Output Voltage

vs. Temperature

	4.2
	4.0
	3.8
(mA)	3.6			VIN = 5.0 V
	3.4
				IIN
IN	3.2			(PINS 2 and 3)
I				VCC = 5.0 V
Current,	2.8
	3.0
Input	2.6
	2.4				VOL
					VCC = 5.0 V
	2.2				IOL = 4.2 mA
	2.0
	1.8
	-40	-20	0	25	45	65
			TA - TEMPERATURE (°C)

	120
	110
	100
	90
	80	(mV)
	70
	60	VOL
	50
	40
	30
	20
	10
	0
85

VOLTAGE- (V)THRESHOLD

(DC) TH V

	Fig. 4 Current Threshold/Voltage Threshold
			vs. Temperature
4.2							3.2	(mA)
4.0							3.0
3.8							2.8
3.6		VTH+					2.6	THRESHOLD
3.4							2.4
3.2							2.2
		ITH+
3.0							2.0	CURRENT-
2.8		VTH-					1.8
2.6							1.6
2.4							1.4	(DC)
2.2							1.2
		ITH-						TH
2.0							1.0
								I
1.8							0.8
-40	-20	0	25	45	65	85

TA - TEMPERATURE (°C)

Optocoupler

		Fig. 5 Propagation Delay vs. Temperature											Fig. 6 Rise and Fall Time vs. Temperature
	70											100								0.8
∝s)(	60											90							0.7
														Tf
DELAY												80							0.6
	50										∝s)(										∝s)(
PROPAGATION-												70							0.5
	20										T	30									T
				TPLH
	40											60
	30										RISE-	50							0.4		FALL-
								TPHL				40							0.3
											r										f
P																			0.2
T												20
	10											10				Tr			0.1
	0
												0								0.0
	-60	-40	-20		0	20	40	60	80	100		-40	-20	0	25	45	65	85
					TA - TEMPERATURE (°C)									TA - TEMPERATURE (°C)

©2005 Fairchild Semiconductor Corporation	www.fairchildsemi.com
HCPL-3700 Rev. 1.0.1	5