HVDCP 控制器,用于 Qualcomm Quick Charge™ 3.0

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NCP4371 是一款 USB 辅助侧快速充电控制器,支持 Qualcomm Quick Charge™ 3.0 (QC 3.0) 高电压专用充电端口 (HVDCP) A 级和 B 级规格。NCP4371 允许基于所供电便携式设备 (PD) 的命令选择 AC-DC USB 适配器的输出电压。选择更高的充电电压将降低某个特定功率等级下的充电电流,因此降低 IR 下降,提高系统能效。QC3.0 的另一个优势在于它能选择最佳充电电压,所以缩短了电池充电时间,降低了 PD 系统成本。因此 PD 内无需成本高昂的 DC-DC 转换器。USB-总线电压可通过几个步骤在 3.6V 到高达 20V 之间进行控制。输出电流限制为不超过最大允许功率等级。 NCP4371 位于适配器的辅助(隔离)侧。它包括了电压和电流反馈调节,因此无需 TL431 等分路稳压器。 NCP4371 提供了低至 VBUS=2.2V 的充电电流限制,会在发生软短路情况下保护便携设备不会受到过大电流影响。 NCP4371 集成了安全放电电路,拔下 USB 电缆或联接仅 5V USB 端口时可快速可靠地对输出电容器进行放电。

  • Fast Charging AC/DC Adapters
  • Smart Phones Adapter
  • Tablets Adapter
  • Protable Device Adapter
  • Supports Qualcomm Quick Charge™ 3.0 HVDCP Class A/B
  • Output Voltage Can be Configured in Discreet Steps from Class A: 3.6V up to 12V Class B: 3.6V up to 20V
  • Constant Voltage and Constant Current Regulation
  • Soft Short-Circuit Current Limitation Down to VBUS = 2.2V
  • USB pins ESD rated to 8 kV
  • Removes a Need for the Secondary Side Shunt Regulator such as TL431
  • Output Capacitor Safe-Discharge Circuitry at Cable Unplug
  • Low Supply Current
  • Wide Operating Input Voltage Range: 2.2V to 28V
  • Compatible with USB Battery Charging Specification Revision 1.2 (USB BC1.2)
  • Fast Dynamic Response
  • Built-in Power Limiting Function
  • Pb-free Device

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NCP4371AACDR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

3

260

REEL

2500

N

28

1.25

3.0E-4

-40

125

Price N/A

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NCP4371AADDR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

3

260

REEL

2500

N

28

1.25

3.0E-4

-40

125

Price N/A

More Details

NCP4371AAEDR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

3

260

REEL

2500

N

28

1.25

3.0E-4

-40

125

Price N/A

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