Sharp GP1A71R, GP1A70R Datasheet

	GP1A70R/GP1A71R
GP1A70R/GP1A71R	OPIC Photointerrupter with
	Encoder Functions

■ Features

1.2-phase ( A, B ) digital output

2.Sensing accuracy

(GP1A70R Disk slit pitch : 1.14mm ) (GP1A71R Disk slit pitch : 0.7mm )

3.PWB mounting type ( Lead bending type )

4.TTL compatible output

5.Compact, lightweight

■ Applications

1.Printers

2.Copiers

3.Numerical control machines

■ Outline Dimensions									( Unit : mm)
							Internal connection diagram
							1				6
											5
	7.2	6.0		GP1A70R			2				4
											3
				6.0							OPIC
							1	Anode		4	GND
				12.5			2	Cathode		5	VCC
							3	VOB		6	VOA
		0.2	0.1	13.0				3	4	5	6
		+ -
		2.0
10.5	0.15
	±					MIN.
	6.5
2 - C0.2		0.75		2 - φ 2.0± 0.12.5
				12.0
									2	1
				(6.56)	2 - (1.75)
				2	3	4	)
							1.27
							(
				1 4.0±	0.1	)	-
							3
						2.54		*Tolerance :±		0.3mm
				5	6	(		*( ) : Reference dimensions

*“OPIC ” ( Optical IC ) is a trademark of the SHARP Corporation. An OPIC consists of a light-detecting element and signalprocessing circuit integrated onto a single chip.

■ Absolute Maximum Ratings				( Ta = 25˚C)
	Parameter	Symbol	Rating		Unit
	Forward current	IF	50		mA
Input	*1Peak forward current	I FM	1		A
	Reverse voltage	V R	6		V
	Power dissipation	P	75		mW
	Supply voltage	V CC	7		V
Output	Low level output current	IOL	20		mA
	Power dissipation	P O	250		mW
	Operating temperature	Topr	0 to + 70		˚C
	Storage temperature	Tstg	- 40 to + 80		˚C
	*2 Soldering temperature	Tsol	260		˚C

*1 Pulse width<=100μ s, Duty ratio 0.01

*2 For 5 seconds

“ In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device”.

GP1A70R/GP1A71R

■ Electro-optical Characteristics						( Ta = 25˚C unless otherwise specified )
	Parameter		Symbol			Conditions	MIN.	TYP.	MAX.	Unit
Input	Forward voltage			V F		IF = 20mA, Ta= 25˚C	-	1.2	1.4	V
	Reverse current			IR	V R= 3V, Ta= 25˚C		-	-	10	μ A
	Operating supply voltage			VCC			4.5	5.0	5.5	V
Output	High level output voltage			VOH	*3V CC= 5V, I F = 20mA		2.4	4.9	-	V
	Low level output voltage			VOL	*3IOL= 8mA, VCC= 5V, I F = 20mA		-	0.1	0.4	V
	Supply current			ICC	*4V CC= 5V, I F = 20mA		-	5	20	mA
Transfer	Duty ratio	GP1A70R	*5	DA , D B	*3	VCC= 5V, I F = 20mA, f = 2.5kHz	25	50	75	%
charac-		GP1A71R					25	50	75	%
teristics	Response frequency			f MAX.	*3V CC= 5V, I F = 20mA		-	-	10	kHz
*3 Measured under the condition shown in Measurement Conditions.
*4 In the condition that output A and B are low level.
*5 D A: t AH	x 100, DB : t BH x 100, Duty ratio : Average disk rotation time per turn
t AP	t BP

■ Output Waveforms

Output A

(VOA)

Output B

(VOB)

tAH
	tAP
tAB1	tBH
	tBP

Rotational direction : Counterclockwise when seen from OPIC light detector

Fig. 1 Forward Current vs. Ambient	Fig. 2 Output Power Dissipation vs.
Temperature	Ambient Temperature

Forward current IF ( mA )

60

50

40

30

20

10

0

0

25

50

70

75

100

Ambient temperature Ta ( ˚C)

Output power dissipation PO ( mW )

300

250

200

150

100

50

0

0

25

50

70

75

100

Ambient temperature Ta ( ˚C)