AN8497SA Datasheet, PDF (4/5 Pages) Panasonic Semiconductor – 3-channel linear input PWM driver IC

AN8497SA
ICs for Compact Disc/CD-ROM Player
s Electrical Characteristics at SV_DD = V_M12 = V_M3 = 5 V, V_REF = 1.65 V, SB = 3.3 V, R_L = 8 Ω, T_a = 25°C
(continued)
• Design reference data
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
Thermal protection operating
temperature
T_TSD

 160  °C
Thermal protection hysteresis width ∆T_TSD

 40  °C
SV_DD reset
Hysteresis width
∆V_RES

 0.2  V
s Usage Notes
1. Be sure to use SV_DD in the highest potential within the IC.
2. Standby operation, reset operation
Pin 28 is a standby switch input pin.
You can get an active mode with high-level and standby mode with low-level. In a reset operation, all the functions
of the IC stop. In a reset mode (SV_DD reset, V_REF reset and thermal protection on), only a charge pump operates.
3. Power on and off be done in a standby mode (V_SB: Low).
4. Do not use pin 13 (V_REF) in an open state.
5. Take time to check the characteristics on use.
When changing an external circuit constant for use, consider not only static characteristics, but also transient charac-
teristics and external parts with respect to the characteristics difference among ICs so that you can get enough margin.
6. Keep each output pin from being short-circuited to SV_DD or VM or GND (line-to-supply and line-to-ground fault)
and also between themselves (load short-circuit). Otherwise the IC will be damaged and is likely to get fired.
7. Be cautious on a dip soldering. Prior study is required.
s Application Note
• P_D  T_a curves of SSOP032-P-0300
1.400
1.288
1.200
1.000
P_D  T_a
Mounted on standard board
(glass epoxy: 50 × 50 × t0.8 mm³)
Rth(j-a) = 97.0°C/ W
0.800
0.667
0.600
0.400
0.200
Independent IC
without a heat sink
Rth(j-a) = 187.2°C/ W
0.000
0
25
50
75
100 125
150
Ambient temperature T_a (°C)
4