
TSL235R
LIGHTTOFREQUENCY CONVERTER
TAOS038 – APRIL 2002
2
Copyright 2002, TAOS Inc.
The LUMENOLOGY Company
www.taosinc.com
Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
DD
(see Note 1)
Operating free-air temperature range, T
A
Storage temperature range, T
stg
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–25
°
C to 70
°
C
–25
°
C to 85
°
C
240
°
C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND.
Recommended Operating Conditions
MIN
NOM
MAX
UNIT
Supply voltage, V
DD
Operating free-air temperature range, T
A
2.7
5
5.5
V
°
C
–25
70
Electrical Characteristics at V
DD
= 5 V, T
A
= 25
°
C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
OH
V
OL
I
DD
High-level output voltage
I
OH
= –4 mA
I
OL
= 4 mA
4
4.5
V
Low-level output voltage
0.25
0.4
V
Supply current
Full-scale frequency
2
3
mA
500
kHz
ppm/
°
C
%/V
Temperature coefficient of output frequency
Wavelength < 700nm
V
DD
= 5 V
±
10%
±
150
±
0.5
k
SVS
Full-scale frequency is the maximum operating frequency of the device without saturation.
Supply-voltage sensitivity
Operating Characteristics at V
DD
= 5 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
E
e
= 430
μ
W/cm
2
,
λ
p
= 635 nm
E
e
= 0
μ
W/cm
2
f
O
= 0 kHz to 10 kHz
f
O
= 0 kHz to 100 kHz
MIN
200
TYP
250
MAX
300
UNIT
kHz
f
O
Output frequency
0.4
10
Hz
Nonlinearity
§
±
0.1%
±
0.2%
%F.S.
%F.S.
Step response to full-scale step input
1 pulse of new
frequency plus 1
μ
s
Full-scale frequency is the maximum operating frequency of the device without saturation.
§
Nonlinearity is defined as the deviation of f
O
from a straight line between zero and full scale, expressed as a percent of full scale.