IS31AP4915-QFLS2-TR
IS31AP4915-QFLS2-TR Datasheet
IS31AP4915
| Part | Datasheet |
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IS31AP4915-QFLS2-TR |
IS31AP4915-QFLS2-TR (pdf) |
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| IS31AP4915 20VP-P CHARGE PUMP CERAMIC SPEAKER DRIVER September 2012 The IS31AP4915 features a mono power amplifier with an integrated charge-pump power supply specifically designed to drive the high capacitance of a ceramic loudspeaker. The IS31AP4915 maximizes battery life by offering high performance efficiency. The IS31AP4915 is ideally suited to deliver the high output-voltage swing required to drive ceramic/piezoelectric speakers. The device utilizes comprehensive click-and-pop suppression and shutdown control. The IS31AP4915 is fully specified over the -40°C to +85°C extended temperature range and is available in small lead-free 16-pin QFN 4mm x 4mm packages. • Integrated charge-pump power supply - no inductor required • Thermal protection • Pop reduction circuitry • 20VP-P voltage swing into piezoelectric speaker • QFN-16, 4mm x 4mm • CD/MP3 players • Smart phones • Cellular phones • PDAs • Handheld gaming TYPICAL APPLICATION CIRCUIT 220pF 200K 33nF 5K - 5.5V 1 uF SVDD PVDD SHUTDOWN 100K SGND PGND C1P C1N OUT + OUT SVSS PVSS 10ohm 10K 10K 10ohm 10 uF 10 uF Figure 1 Typical Application Circuit Integrated Silicon Solution, Inc. IS31AP4915 PIN CONFIGURATION Package Pin Configuration Top View 16 PVDD 15 SD 14 SGND 13 NC QFN-16 C1P 1 PGND 2 C1N 3 PVSS 4 12 IN 11 SD 10 FB 9 OUT+ NC 5 SVSS 6 OUT- 7 SVDD 8 PIN DESCRIPTION 1 2 3 4 5, 13 6 7 8 9 10 11, 15 12 14 16 C1P PGND C1N PVSS NC SVSS OUTSVDD OUT+ FB SD IN SGND PVDD Thermal Pad Charge pump flying capacitor positive terminal. Power ground, connect to ground. Charge pump flying capacitor negative terminal. Output from charge pump. No connection. Amplifier negative supply, connect to PVSS. Negative output signal. Amplifier positive supply, connect to PVDD. Positive output signal. Feed back. Shutdown, active low logic. Audio input signal. Signal ground, connect to ground. Charge pump supply voltage, connect to positive supply. Connect to GND. ORDERING INFORMATION Industrial Range -40°C to +85°C Order Part No. Package IS31AP4915-QFLS2-TR QFN-16, Lead-free QTY/Reel 3000 Integrated Silicon Solution, Inc. IS31AP4915 ABSOLUTE MAXIMUM RATINGS Supply voltage, VDD -0.3V ~ +6.5V Voltage at any input pin Maximum junction temperature, TJMAX Storage temperature range, TSTG -0.3V ~ VDD+0.3V 150°C -65°C ~ +150°C Operating temperature range, TA −40°C ~ +85°C Note Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS Parameter SVDD, PVDD VIH VIL Supply voltage High level input voltage Low level input voltage Min. Max. Unit ELECTRICAL CHARACTERISTICS TA=25°C. Note 1 Parameter Condition |VOS| IDD Output Offset Voltage Supply Current VDD = 3V, SD = VDD = 5V, SD = VDD Shutdown mode, VDD = 2.5V ~ 6.5V Min. Typ. Max. Unit ELECTRICAL CHARACTERISTICS VDD = 3.6V, TA = 25°C unless otherwise noted Note 2 Parameter Condition Min. Typ. Max. Unit VOUT THD+N Vn fosc tON SNR Output voltage |
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