PI627MC-A4 / PI628MC-A4 / PI629MC-A4 Engineering Data Sheet

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Recommended Operating Conditions at 25 °C

Table 10 lists the recommended operating conditions common to all three modules. Table 11 lists the

recommended operating conditions particular to each of the three LED light sources.

Parameter

Symbol

Min

Typical

Max

Units

Vdd (positive)

4.5

5.0

5.5

V

Vn (negative)

-10

-5

-4.0

V

Idd (positive)

60

66

75

mA

Power Supply

In (negative)

19

20

21

mA

Input voltage (high level)

Vih

Vdd - 1.0

Vdd -0.5

Vdd

V

Input voltage (low level)

Vil

0

0.6

V

Clock frequency

(1)

Fclk

0.518

5.5

MHz

Clock pulse high duty cycle

Duty

25

50

75

%

Clock pulse high duration

Pwck

46

ns

Integration time

(1)

Tint

82

150

µs

Operating temperature

Top

25

50

Table 10. Recommended Operating Conditions at 25 °C, common to all 3 modules

LED Light Source

Parameter

Min

Typical

Max

Units

660nm Red LED

VLED

5.0

5.5

Volts

ILED

480

550

mA

High Power Yellow-Green LED

VLED

5.0

5.5

Volts

ILED

TBD

TBD

mA

Low Power Yellow-Green LED

VLED

5.0

5.5

Volts

ILED

TBD

TBD

mA

Table 11. Recommended Operating Conditions at 25 °C, for each LED

Note

1. The maximum clock speed is limited by the modules light source power, due to the low light power

associated with LED’s.

The minimum clock speed is determined by the longest tolerable integration time. Because of the

leakage current build up, the integration time is recommended to be no greater than 10 ms.

Page 9 of 13, Revised 2-23-04