NCP1937: 功率因数校正和准谐振反激控制器组合
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此组合集成电路将为适配器应用实施一个紧凑、高能效的开关模式电源所需的功率因数校正 (PFC) 和准谐振反激功能进行集成。该 PFC 级以最大频率箝位在临界导通模式 (CrM) 下运行时表现为接近一致的功率因数。 该电路结合了构建一个坚固紧凑的 PFC 级所需的所有必要功能，同时最大程度减少了外部组件的数量。该准谐振电流模式反激级具有一个专属的谷锁闭电路，可确保稳定的谷切换。 该系统可在低至第 4 谷运行，对于超过第 4 谷的最小频率箝位则切换到频率折回模式，消除了噪声。跳过模式运行可在轻型负载条件下实现卓越能效，同时具有极低的待机功耗。
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评估/开发工具信息
| 产品 | 状况 | Compliance | 简短说明 | 行动 | |
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| NCP1937BADAPGEVB | Active |
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90 W Adapter PFC+QR 10 MW Evaluation Board |
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Availability & Samples
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Specifications
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外形 |
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| NCP1937A1DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466
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| NCP1937A2DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466
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| NCP1937A3DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466
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| NCP1937B1DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466
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| NCP1937B2DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466 | ||||||||
| NCP1937B3DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466
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| NCP1937B51DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466
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| NCP1937C1DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466 | ||||||||
| NCP1937C4DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466
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| NCP1937C61DR2G | Active |
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NCP1937 | SOIC-20 NB | 751BS | 1 | 260 | Tape and Reel | 2500 | $0.7466
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| 市场订货至交货的时间(周) | : | 13 to 16 |
| 市场订货至交货的时间(周) | : | Contact Factory |
| 市场订货至交货的时间(周) | : | 8 to 12 |
| 市场订货至交货的时间(周) | : | Contact Factory |
| 市场订货至交货的时间(周) | : | 13 to 16 |
| ON Semiconductor (2020-09-02 00:00) | : | 2,500 |
| 市场订货至交货的时间(周) | : | 13 to 16 |
| 市场订货至交货的时间(周) | : | Contact Factory |
| 市场订货至交货的时间(周) | : | 13 to 16 |
| 市场订货至交货的时间(周) | : | Contact Factory |
| 市场订货至交货的时间(周) | : | Contact Factory |
Product
Description
Pricing ($/Unit)
Compliance
Status
PFC Mode
Frequency Operation
Control Mode
Topology
fSW Typ (kHz)
VCC Max (V)
Drive Cap. (mA)
UVLO (V)
Latch
UVP
Inhibition
Package Type
NCP1937A1DR2G
$0.7466
Pb
A
H
P
Active
CRM
Variable
Current Mode
Flyback
Variable
30
0.5
Yes
Yes
Yes
Yes
SOIC-20 NB
NCP1937A2DR2G
$0.7466
Pb
A
H
P
Active
CRM
Variable
Current Mode
Flyback
Variable
30
0.5
Yes
Yes
Yes
Yes
SOIC-20 NB
NCP1937A3DR2G
$0.7466
Pb
A
H
P
Active
CRM
Variable
Current Mode
Flyback
Variable
30
0.5
Yes
Yes
Yes
Yes
SOIC-20 NB
NCP1937B1DR2G
$0.7466
Pb
A
H
P
Active
CRM
Variable
Current Mode
Flyback
Variable
30
0.5
Yes
No
Yes
Yes
SOIC-20 NB
NCP1937B2DR2G
$0.7466
Pb
A
H
P
Active
CRM
Variable
Current Mode
Flyback
Variable
30
0.5
Yes
No
Yes
Yes
SOIC-20 NB
NCP1937B3DR2G
$0.7466
Pb
A
H
P
Active
CRM
Variable
Current Mode
Flyback
Variable
30
0.5
Yes
No
Yes
Yes
SOIC-20 NB
NCP1937C1DR2G
$0.7466
Pb
A
H
P
Active
CRM
Variable
Current Mode
Flyback
Variable
30
0.5
Yes
Yes
Yes
Yes
SOIC-20 NB
NCP1937C4DR2G
$0.7466
Pb
A
H
P
Active
CRM
Variable
Current Mode
Flyback
Variable
30
0.5
Yes
Yes
Yes
Yes
SOIC-20 NB
NCP1937C61DR2G
$0.7466
Pb
A
H
P
Active
CRM
Variable
Current Mode
Flyback
Variable
30
0.5
Yes
Yes
Yes
Yes
SOIC-20 NB
外形
751BS
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