NCP1622BECSNT1G
Compact and reliable PFC converter for industrial automation syste
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Part Number : NCP1622BECSNT1G
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Package/Case : TSOP-6
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Brand : Onsemi
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Components Classification : PFC
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Datesheet : NCP1622BECSNT1G DataSheet (PDF)
Overview of NCP1622BECSNT1G
The 6-pin PFC controller NCP1622 is designed to drive PFC boost stages. It is based on an innovative Valley Synchronized Frequency Fold-back (VSFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when control voltage exceeds a programmable value Vctrl,FF. When Vcontrol is below this preset level Vctrl,FF, the NCP1622 (versions [B**] and [D**]) linearly decays the frequency down to about 30 kHz until Vcontrol reaches the SKIP mode threshold. VSFF maximizes the efficiency at both nominal and light load. In particular, the stand-by losses are reduced to a minimum. Like in FCCrM controllers, internal circuitry allows near-unity power factor even when the switching frequency is reduced. Housed in a TSOP6 package, the circuit also incorporates the features necessary for robust and compact PFC stages, with few external components.
Key Features
- Critical Conduction Mode with frequency foldback
- Valley Synchronized Frequency Fold-back (VSFF)
- Works with or without a transformer w/ ZCD winding
- Dynamic Response Enhancer
Application
- Offline Power Supply
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Status | Active | Compliance | PbAHP |
Package Type | TSOP-6 | Case Outline | 318G-02 |
MSL Type | 1 | MSL Temp (°C) | 260 |
Container Type | REEL | Container Qty. | 3000 |
ON Target | Y | PFC Mode | CRM |
Frequency Operation | Variable | Control Mode | Current Mode |
Topology | Step-Up | fSW Typ (kHz) | Variable |
VCC Max (V) | 30 | Drive Cap. (mA) | 500 / 800 |
UVLO (V) | 10.5 | Latch | Yes |
UVP | Yes | Inhibition | No |
Pricing ($/Unit) | $0.2947Sample |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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