Audio Power Amplifiers | NCP2890

音频功率放大器，1.0 W

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NCP2890 是一款音频功率放大器，适用于手机等便携式通信设备应用。NCP2890 能够通过 5.0 V 电源向 8 Ω 负载提供 1.0 W 的连续平均功率，并通过 2.6 V 电源向 4 Ω 负载提供 320 mW 的连续平均功率。NCP2890 在提供高质量音频的同时，只需要极少的外部组件和最低的功耗。它具有低功耗关断模式，可通过以逻辑低电平驱动关断引脚来实现。NCP2890 包含的电路可防止在开启和关闭转换期间产生杂音。NCP2890 具有最大的灵活性，可提供一个外部控制的增益（带有电阻）以及一个外部控制的开启和关闭时间（带有旁路电容器）。由于其出色的 PSRR，它可以直接连接到电池，节省了 LDO 的使用。该器件采用 9 引脚倒装芯片 CSP 和 Micro8 封装。

  • Audio Amplification

  • Mobile Phones

  • 1.0 W to an 8.0 Ω Load from a 5.0 V Power Supply
  • Excellent PSRR: Direct Connection to the Battery
  • Pop and Click Noise Protection Circuit
  • Ultra Low Current Shutdown Mode
  • 2.2 - 5.5 V Operation
  • External Gain Configuration Capability
  • External Turn-on and Turn-off Time Configuration Capability
  • Up to 1.0 nF Capacitive Load Driving Capability
  • Thermal Overload Protection Circuitry

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ton Typ (ms)

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NCP2890AFCT2G

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Obsolete

CAD Model

Pb

A

H

P

Flip-Chip-9

499E

1

260

DSFTP

3000

N

AB

1

5.5

BTL

285

0.02

1.5

10

Price N/A

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NCP2890DMR2G

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CAD Model

Pb

A

H

P

Micro8

846A-02

1

260

REEL

4000

N

AB

1

5.5

BTL

285

0.02

1.5

10

Price N/A

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可靠性数据

Die Related Summary Data

Device: NCP2890DMR2G

Equivalent to wafer fab process: CMOS STD

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

CMOS STD

3

3597164517

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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