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DA7202 Datasheet(PDF) 9 Page - Dialog Semiconductor |
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DA7202 Datasheet(HTML) 9 Page - Dialog Semiconductor |
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9 / 25 page  DA7202 10 W Mono Class-D Amplifier for 2S Battery Devices Company confidential Datasheet Revision 3a 20-Aug-2015 CFR0011-120-00 Rev 5 9 of 25 © 2015 Dialog Semiconductor 6 Electrical characteristics Table 4: Digital inputs (PDN_N) Parameter Description Conditions Min Typ Max Unit VIH Input-Voltage High 1.3 +5 (VLDO) V VIL Input-Voltage Low 0 0.7 V Input Hysteresis 0.4 V IIH Input High Leakage current VIN=5 V, TA=25°C 25 µA IIL Input Low Leakage current VIN=GND, TA=25°C 0.1 µA Note 2 VIH and VIL define logic levels to enable or disable the DA7202. Table 5: Analog inputs (IN_P, IN_N) Parameter Description Conditions Min Typ Max Unit Audio input signal +5.0 V 7 Thermal protection Monitoring of the ambient temperature does not guarantee that the junction temperature (TJ) is within the specified temperature limits. The junction temperature of the device is dependent on the ambient temperature (TA), the power dissipation of the device (PD), and the junction-to-ambient thermal resistance of the package (θJA). An estimation of the junction temperature (TJ) can be calculated using the formula TJ = TA + (PD × θJA) Where: ● TJ = junction temperature ● TA = ambient temperature of the package (°C) ● PD = power dissipation of the package (W) ● θJA = junction to ambient thermal resistance (°C / W) = 72°C/W The value of θJA can vary, depending on PCB material, the layout, and the environmental conditions. The specified value of θJA (72°C/W) is based on a 4-layer, 101.5 mm x 114.5 mm circuit board as specified in the JEDEC standard JESD51-9. Table 6: Thermal protection Parameter Description Conditions Min Typ Max Unit Thermal Shutdown Threshold 150 °C Thermal Shutdown Restart Threshold 100 °C Thermal Shutdown Hysteresis 50 °C θJA Junction to ambient thermal resistance 72 °C/W |
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