TPS851

2002-04-17

2

Recommended Operating Conditions

Characteristics

Symbol

Min

Typ.

Max

Unit

Supply voltage

2.2

¾

5.5

V

==== 25°C)

Characteristics

Symbol

Test Condition

Min

Typ.

Max

Unit

Supply current

(Note 2)

¾

620

¾

mA

Light current (1)

(Note 2), (Note 4)

¾

62

¾

mA

Light current (2)

(Note 3), (Note 4)

3.7

¾

7.4

mA

Light current (3)

(Note 3), (Note 4)

37

¾

74

mA

Light current ratio

(3)

L

I

(1)

L

I

¾

¾

1.2

1.7

Dark current

¾

¾

0.17

mA

Saturation output voltage

(Note 3)

2.2

2.35

¾

V

Peak sensitivity wavelength

lp

¾

¾

600

¾

nm

Rise time

¾

0.07

1

Switching time

Fall time

(Note 5)

¾

0.4

2

ms

Note 2: CIE standard A light source is used (color temperature

= 2856K, approximated incandescence light).

Note 3: Fluorescence light is used as light source. However, white LED is substituted in a mass-production process.

Note 4: Light current measurement circuit

Note 5: Rise time/fall time time measurement method

A

OUT

TPS851

Light

source

OUT

White LED

Pulse drive

TPS851

1.5 V

GND

90%

10%