BH6578FVM Datasheet, PDF (1/2 Pages) Rohm – 1- channel loading driver IC

Optical disc ICs
1- channel loading driver IC
BH6578FVM
BH6578FVM
BH6578FVM is an 1-channel loading driver IC with setting pin that can change output voltage.
Adoption of small MSOP8 package enables to reduce space in the sets.
!Applications
CD/DVD slim
!Features
1) MOS output wide dynamic range loading driver (RON=1Ω (TOP+Bottom) )
2) With output voltage setting pin
3) Built-in thermal shutdown circuit
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Supply voltage
VCC
Power dissipation
Pd
7
V
550 ^∗
mW
Operating temperature range
Topr
−35~+85
°C
Storage temperature range
Tstg
−55~+150
°C
∗ Derating:4.4mW/°C for operation above Ta=25°C
!Recommended operating conditions
Parameter
Symbol
Min.
Typ.
Max.
Unit
Supply voltage
VCC
4.5
5.0
5.5
V
!Electrical characteristics (unless otherwise noted, Ta=25°C, VCC=5V)
Parameter
Symbol Min. Typ. Max. Unit
Circuit current at no signal
ICC
−
0.4 0.8
mA
Output offset voltage
VOFSL −15
0
+15
mV
ON resistance
RON
−
1.0 1.8
Ω
Voltage gain
GVLD 4.5 6.0 7.5
dB
Positive/negative voltage differential gain ∆GVLD −2.0 0
2.0
dB
Input pin inflow current
INL
−
86 120
µA
LDCONT pin outflow current
ILDC
−
−
300
nA
Conditions
Brake mode
IO=500mA, Top+Bottom
CONT=1V
FIN=RIN=5V
CONT=2V
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