The 6-pin PFC controller NCP1602 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 NCP1602 (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.
Features
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Applications
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| Document Title | Document ID/Size | Revision | Revision Date |
|---|---|---|---|
| Excel Spreadsheet for Designing a Power Factor Correction Application | NCP1602 DESIGN EXCEL SPREADSHEET (344kB) | 1 | Jul, 2016 |
| Excel Spreadsheet for Helping the Choice of Frequency Foldback Product Option | AN1602 FFB OPTIONS SELECTION (44kB) | 0 | Jan, 2016 |
| Document Title | Document ID/Size | Revision |
|---|---|---|
| TSOP-6 | 318G-02 (64.1kB) | V |
| Document Title | Document ID/Size | Revision | Revision Date |
|---|---|---|---|
| 5 Key Steps to Designing a Compact, High-Efficiency PFC Stage Using the NCP1602 | AND9218/D (281kB) | 3 | Jun, 2016 |
| Good Practice for the NCP1602 CSZCD Pin Design and PCB Layout | AND9454/D (200kB) | 0 | Jun, 2016 |
| How to Select the Frequency Foldback Product Option When Designing a Compact, High-Efficiency PFC Stage Using the NCP1602 | AND9364/D (252kB) | 0 | Jan, 2016 |
| How to Use Auxiliary Winding Voltage for Biasing the NCP1602 CSZCD Pin | AND9455/D (478kB) | 0 | Jun, 2016 |
| Document Title | Document ID/Size | Revision | Revision Date |
|---|---|---|---|
| NCP1602-E_SIMPLIS_MODEL_June_7th_2016.zip | NCP1602 SIMPLIS MODEL (3975kB) | 0 | Jun, 2016 |
| Document Title | Document ID/Size | Revision | Revision Date |
|---|---|---|---|
| Enhanced, High-Efficiency Power Factor Controller | NCP1602/D (231kB) | 3 | Jan, 2017 |
| Product | Status | Compliance | Short Description |
|---|---|---|---|
| NCP1399ADPGEVB | Active | Pb-free | 150W Adapter Power Supply Evaluation Board |
| NCP1399AIOGEVB | Active | Pb-free | 240W All-in-One PC Power Supply Evaluation Board |
| NCP1602BOOSTGEVB | Active | Pb-free | PFC Boost Converter, Universal Input, 390V 450mA Output Evaluation Board |
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit | ||
|---|---|---|---|---|---|---|---|---|
| NCP1602ABASNT1G | Active | Pb-free Halide free | TSOP-6 | 318G-02 | 1 | Tape and Reel | 3000 | $0.3 |
| NCP1602AEASNT1G | Active | Pb-free Halide free | TSOP-6 | 318G-02 | 1 | Tape and Reel | 3000 | $0.3 |
| NCP1602DCCSNT1G | Active | Pb-free Halide free | TSOP-6 | 318G-02 | 1 | Tape and Reel | 3000 | $0.4 |
| NCP1602DFCSNT1G | Active | Pb-free Halide free | TSOP-6 | 318G-02 | 1 | Tape and Reel | 3000 | $0.4 |
| Product | PFC Mode | Frequency Operation | Control Mode | Topology | fSW Typ (kHz) | VCC Max (V) | Drive Cap. (mA) | UVLO (V) | Latch | UVP | Inhibition |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NCP1602ABASNT1G | CRM | Variable | Current Mode | Step-Up | Variable | 30 | 500 / 800 | Yes | Yes | No | |
| NCP1602AEASNT1G | CRM | Variable | Current Mode | Step-Up | Variable | 30 | 500 / 800 | Yes | Yes | No | |
| NCP1602DCCSNT1G | CRM | Variable | Current Mode | Step-Up | Variable | 30 | 500 / 800 | Yes | Yes | No | |
| NCP1602DFCSNT1G | CRM | Variable | Current Mode | Step-Up | Variable | 30 | 500 / 800 | Yes | Yes | No |
