AN8737SB Datasheet, PDF (5/8 Pages) Panasonic Semiconductor – 3-channel driver IC for optical disk drive

ICs for Optical Disk Drive
AN8737SB
s Electrical Characteristics at SV_CC = 12 V, PV_CC1 = 5 V, PV_CC2 = 5 V, R_L = 8 Ω, V_REF = 1.65 V,
V_SB = V_PC1 = V_PC2 = 3.3 V, V_IN1 = V_IN2 = V_IN3 = 1.65 V, T_a = 25°C (continued)
• Design reference data (continued)
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter
Symbol
Conditions
Min Typ Max Unit
Thermal protection circuit (continued)
Operating temperature difference bet. ∆T_TF
thermal protection/temperature flag
 10  °C
Temperature flag output high
value
V_FLH SV_CC = 12 V

5

V
Supply voltage detection hysteresis ∆V_HD
width
 0.2 
V
s Usage Notes
1. Use SV_CC at the maximum potential.
Otherwise it will cause operation error.
2. Do not use PV_CC1 and PV_CC2 at 2 V or less, or at the high impedance.
3. Driver 1, driver 2 gain setting
(Use a resistor of sufficient power dissipation for R_S .)
R_E
C_E
Input
R_IN pin _{3 or 2 500 Ω}
V_IN
R_FB
V_REF
6 or 27 ^{500 Ω}
200 Ω
Forward
rotation pin
× 5 _{12 or 15}
× 5 _{9 or 14}
Pwr. amp.
V_REF
R_L
4Ω
R_S
0.5 Ω
V_REF
5 or 28
Reverse
rotation pin
4. On the mode of mute:
SB = PC1 = high
SB = PC1 = low or Hi-Z
PC2 = high
PC2 = low or Hi-Z

Ch. 1, Ch. 2
Active
Active
All mute,
Ch. 3
Active
Mute
power save
Never fail to input the same signal into SB pin (pin 24) and PC1 pin (pin 11).
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