Overview
The NCP2809BMUTXG, produced by onsemi, is a cost-effective stereo audio power amplifier designed to deliver high-quality audio output from low supply voltages. This amplifier is part of the NCP2809 series and is optimized for low-power portable systems. It does not require bootstrap capacitors or snubber networks, making it ideal for applications where minimal external components are desired. The NCP2809BMUTXG operates within a voltage range of 2.2 V to 5.5 V and is available in an ultra-thin UDFN package (3x3 mm).
Key Specifications
| Characteristic | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Quiescent Current | IDD | Vin = 0 V, RL = 16 Ω, Vp = 2.4 V / 5.0 V | 1.54 / 2.8 | 1.84 / 3.6 | mA | |
| Output Offset Voltage | Voff | Vp = 2.4 V / 5.0 V | -25 | 1.0 | +25 | mV |
| Shutdown Current | ISD | Vp = 5.0 V | 10 | 600 | nA | |
| Max Rms Output Power | POrms | Vp = 2.4 V, RL = 16 Ω, THD+N < 0.1% | 24 | - | - | mW |
| Max Rms Output Power | POrms | Vp = 5.0 V, RL = 16 Ω, THD+N < 0.1% | 131 | - | - | mW |
| Voltage Gain | G | NCP2809A only | -0.5 | 0 | +0.5 | dB |
| Input Impedance | Zin | NCP2809A only | - | 20 kΩ | - | - |
| Positive Supply Rejection Ratio | PSRR | V+ RL = 16 Ω, Vpripple_pp = 200 mV, Cby = 1.0 μF | -73 / -82 | - | -85 | dB |
| Thermal Shutdown Temperature | Tsd | - | - | - | 160 °C | |
| Total Harmonic Distortion + Noise | THD+N | Vp = 2.4 V, f = 1.0 kHz, RL = 16 Ω, Pout = 20 mW | - | < 0.01% | - | % |
Key Features
- Delivers 135 mW of continuous average power per channel into 16 Ω loads from a 5.0 V power supply.
- Excellent Power Supply Rejection Ratio (PSRR) of up to 85 dB, allowing direct connection to the battery.
- 'Pop and Click' noise protection circuit for smooth turn-on and turn-off transitions.
- Ultra-low current shutdown mode.
- Operates within a voltage range of 2.2 V to 5.5 V.
- Outstanding Total Harmonic Distortion + Noise (THD+N) of less than 0.01%.
- External turn-on and turn-off configuration capability.
- Thermal overload protection circuitry.
- No requirement for bootstrap capacitors or snubber networks.
- Available in ultra-thin UDFN package (3x3 mm) for the NCP2809B version.
- Pb-free packages available.
Applications
- Cellular phones
- Portable stereo systems
- MP3 players
- Personal and notebook computers
Q & A
- What is the maximum output power of the NCP2809BMUTXG?
The NCP2809BMUTXG can deliver up to 135 mW of continuous average power per channel into 16 Ω loads from a 5.0 V power supply.
- What is the operating voltage range of the NCP2809BMUTXG?
The NCP2809BMUTXG operates within a voltage range of 2.2 V to 5.5 V.
- Does the NCP2809BMUTXG require bootstrap capacitors or snubber networks?
No, the NCP2809BMUTXG does not require bootstrap capacitors or snubber networks.
- What is the typical Total Harmonic Distortion + Noise (THD+N) of the NCP2809BMUTXG?
The THD+N is less than 0.01%.
- What is the thermal shutdown temperature of the NCP2809BMUTXG?
The thermal shutdown temperature is 160 °C.
- Can the NCP2809BMUTXG be used in single-ended mode?
- What is the input impedance of the NCP2809A version?
The input impedance of the NCP2809A version is 20 kΩ.
- Does the NCP2809BMUTXG have 'pop and click' noise protection?
- What is the typical shutdown current of the NCP2809BMUTXG?
The typical shutdown current is 600 nA.
- Is the NCP2809BMUTXG available in Pb-free packages?
