Optical disc ICs
BD7902CFS
!Electrical characteristics
(unless otherwise noted, Ta=25°C, SLVDD=VCC=12V, DVCC=AVM=5V, VC=1.65V, SPRNF=0.33Ω, SLRNF=0.5Ω)
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Circuit
Circuit current
Quiescent current 1
IQ1
−
12
20
mA VCC (Loading OFF)
Fig1, 2
Quiescent current 2
IQ2
−
9
16
mA VCC (Loading ON)
Fig1, 2
Quiescent current 3
IQ3
−
2.7
4.9
mA DVCC
Fig1, 2
Stanby-on current 1
IST1
−
0.09
0.2
mA VCC
Fig1, 2
Stanby-on current 2
IST2
−
0
0.1
mA DVCC
Fig1, 2
Sled driver block
Input dead zone (one side)
Input output gain
Output ON resistor (upper)
VDZSL
gmSL
RONUSL
15
0.8
(0.4)
−
40
1.0
(0.5)
1.8
65
1.2
(0.6)
2.3
mV
A/V
(V/V)
Ω
SLRNF=0.5Ω
IL=500mA
Fig1, 2
Fig1, 2
Fig1, 2
Output ON resistor (lower)
Output limit current
PWM frequency
RONLSL
ILIMSL
fosc
−
0.8
(0.4)
−
0.85
0.94
(0.47)
100
1.5
1.08
(0.54)
−
Ω IL=−500mA
A
(V)
SLRNF=0.5Ω
kHz
Fig1, 2
Fig1, 2
Fig1, 2
Spindle driver block 〈 Hall bias 〉
Hall bias voltage
VHB
0.7
1.15
1.6
V IHB=10mA
Fig1, 2
Spindle driver block 〈 Hall amplifier 〉
Input bias current
IHIB
−
1
5
µA
Fig1, 2
Minimum input level
VHIM
50
−
−
mVPP
Fig1, 2
Common mode input Range VHICM
1
−
4
V
Fig1, 2
Spindle driver block 〈 Torque control 〉
Input dead zone (one side)
Input output gain
Output ON resistor (upper)
Output ON resistor (lower)
Output limit current
PWM frequency
VDZSP
gmSP
RONUSP
RONLSP
ILIMSP
fosc
20
2.4
(0.8)
−
−
1.2
(0.4)
−
50
3.0
(1.0)
0.6
0.35
1.42
(0.47)
100
90
3.6
(1.2)
1.0
0.7
1.64
(0.54)
−
mV
A/V
(V/V)
Ω
Ω
A
(V)
kHz
SPRNF=0.33Ω
IL=500mA
IL=−500mA
SPRNF=0.33Ω
Fig1, 2
Fig1, 2
Fig1, 2
Fig1, 2
Fig1, 2
Fig1, 2
Spindle driver block 〈 FG output 〉
High voltage
VFGH
−
Low voltage
VFGL
−
4.9
−
0.1
−
V 100kΩ pull up to DVCC
V
Fig1, 2
Fig1, 2
Actuator driver block
Output offset voltage
VOFFT −50
0
50
mV
Fig1, 2
Output saturation voltage "H" VOHFT
−
Output saturation voltage "L" VOLFT
−
0.45
0.8
0.45
0.8
V IL=500mA
V IL=−500mA
Fig1, 2
Fig1, 2
Voltage gain
GVFT
16.0
17.5 19.0
dB
This product is not designed for protection against redioactive rays.
Fig1, 2
6/17