an8725fh Panasonic Corporation of North America, an8725fh Datasheet - Page 17

• Manufacturer Part Number: an8725fh
• Description: Semiconductor Laser Power Control Ic
• Manufacturer: Panasonic Corporation of North America

ICs for Optical Disk Drive
DAC2
Offset current temperature
characteristics
Driving current temperature
characteristics
Settling time
DAC3
Offset current temperature
characteristics
Driving current temperature
characteristics
Settling time
DAC4
Offset current temperature
characteristics
Driving current temperature
characteristics
Supply voltage monitoring block
Abnormal supply voltage
detection hysteresis
Comparator in abnormally emitted light detection block
Input offset voltage
Design reference data (continued)
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Electrical Characteristics at V
Parameter
V
V
Symbol
dI
dI
dI
V
V
Err
Err
Err
t
t
t
t
SDA2A
SDA3A
SDA2B
SDA3B
PSDHYS
PSOHYS
PDCOF
POCOF
DA2OF
DA3OF
DA4OF
dT
dT
dT
DA2
DA3
DA4
CC
DAC3 "FFh", set to DAC4 "Fh",
T
XWR
DAC2 [ 4: 10 h to 14h],
XWR
DAC2 [ 7F: 10 h to 8 Fh],
DAC3 "FFh", set to DAC4 "Fh",
T
XWR
DAC3 [ 4: 10 h to 14h],
XWR
DAC3 [ 7F: 10 h to 8Fh],
DAC4 "Fh", set to DAC2 "FFh",
T
Voltage difference between abnormality
detection and release of supply voltage
drop, V
Voltage difference between abnormality
detection and release of supply voltage
drop, V
Insufficiently emitted light detection
Excessively emitted light detection
5.0 V, T
0.5 LSB DAC4 [Fh]
1.0 LSB DAC4 [Fh]
0.5 LSB DAC4 [Fh]
1.0 LSB DAC4 [Fh]
a
a
a
20 C to 75 C
20 C to 75 C
20 C to 75 C
PSD1
PSOH
to
to
to
to
a
Conditions
V
25 C (continued)
V
PSDH
PSOL
Min
5
5
Typ
300
300
40
80
40
80
6
6
6
AN8725FH
Max
100
200
100
200
10
10
10
10
10
10
5
5
Unit
mV
mV
%
ns
%
ns
%
C
C
C
A
A
A
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