Fixed-Frequency PWM Controller
The fixed-frequency flyback PWM controller is designed to deliver high performance and a comprehensive protection suite, including Short-Circuit Protection (SCP), Overvoltage Protection (OVP), and Overtemperature Protection (OTP), to enhance system stability. An operating temperature range of -40°C to 125°C ensures reliable operation over its entire lifespan.
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| Part Number | ECAD Model | Rating | Package | Ambient Temperature | Regulation | Switching Frequency | VCC Max. | VCC UVLO ON Typ. | VCC UVLO OFF Typ. | Soft-start | Start-up current Max. | Iq Typ. | Max Duty | Spread Spectrum | Overload Protection | Topology |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NSR22401-Q1MSR |
|
Automotive | MSOP8 | -40~125℃ | SSR/PSR | 70kHz~1MHz | 44V | 3.42V | 3.25V | 4ms | / | 2.5mA | 85% | / | Fsw reduced | Boost, Flyback, SEPIC |
| NSR22402-Q1MSJR |
|
Automotive | MSOP10 | -40~125℃ | SSR/PSR | 70kHz~1MHz | 44V | 3.42V | 3.25V | 15ms | / | 2.5mA | 85% | / | Fsw reduced | Boost, Flyback, SEPIC |
| NSR22601-Q1DBAR |
|
Automotive | DFN12-WF | -40~125℃ | SSR/PSR | 100kHz~1MHz | 50V | 1.5V | 1.45V | SS pin | / | 0.323mA | 87% | / | Cycle-by-cycle | Boost, Flyback, SEPIC |
| NSR22602-Q1DBAR |
|
Automotive | DFN12-WF | -40~125℃ | SSR/PSR | 100kHz~1MHz | 50V | 1.5V | 1.45V | SS pin | / | 0.323mA | 87% | / | Hiccup mode | Boost, Flyback, SEPIC |
| NSR22603-Q1DBAR |
|
Automotive | DFN12-WF | -40~125℃ | SSR/PSR | 100kHz~1MHz | 50V | 1.5V | 1.45V | SS pin | / | 0.323mA | 87% | Yes | Cycle-by-cycle | Boost, Flyback, SEPIC |
| NSR22604-Q1DBAR |
|
Automotive | DFN12-WF | -40~125℃ | SSR/PSR | 100kHz~1MHz | 50V | 1.5V | 1.45V | SS pin | / | 0.323mA | 87% | Yes | Hiccup mode | Boost, Flyback, SEPIC |
| NSR22605-Q1HTSKR |
|
Automotive | HTSSOP14 | -40~125℃ | SSR/PSR | 100kHz~1MHz | 50V | 1.5V | 1.45V | SS pin | / | 0.323mA | 87% | Yes | Cycle-by-cycle | Boost, Flyback, SEPIC |
| NSR22606-Q1HTSKR |
|
Automotive | HTSSOP14 | -40~125℃ | SSR/PSR | 100kHz~1MHz | 50V | 1.5V | 1.45V | SS pin | / | 0.323mA | 87% | Yes | Hiccup mode | Boost, Flyback, SEPIC |
| NSR2842-DSPR |
|
Industrial | SOP8 | -40~125℃ | SSR/PSR | 20kHz~500kHz | 20V | 15.5V | 9.5V | / | 0.5mA | 1mA | 100% | / | / | Boost, Flyback, SEPIC |
| NSR2843-DSPR |
|
Industrial | SOP8 | -40~125℃ | SSR/PSR | 20kHz~500kHz | 20V | 8.2V | 7.5V | / | 0.5mA | 1mA | 100% | / | / | Boost, Flyback, SEPIC |
| NSR2844-DSPR |
|
Industrial | SOP8 | -40~125℃ | SSR/PSR | 20kHz~500kHz | 20V | 15.5V | 9.5V | / | 0.5mA | 1mA | 50% | / | / | Boost, Flyback, SEPIC |
| NSR2845-DSPR |
|
Industrial | SOP8 | -40~125℃ | SSR/PSR | 20kHz~500kHz | 20V | 8.2V | 7.5V | / | 0.5mA | 1mA | 50% | / | / | Boost, Flyback, SEPIC |
| NSR28C42-DSPR |
|
Industrial | SOP8 | -40~125℃ | SSR/PSR | 20kHz~500kHz | 20V | 15.5V | 9.5V | / | 0.1mA | 1mA | 100% | / | / | Boost, Flyback, SEPIC |
| NSR28C43-DSPR |
|
Industrial | SOP8 | -40~125℃ | SSR/PSR | 20kHz~500kHz | 20V | 8.2V | 7.5V | / | 0.1mA | 1mA | 100% | / | / | Boost, Flyback, SEPIC |
| NSR28C44-DSPR |
|
Industrial | SOP8 | -40~125℃ | SSR/PSR | 20kHz~500kHz | 20V | 15.5V | 9.5V | / | 0.1mA | 1mA | 50% | / | / | Boost, Flyback, SEPIC |
| NSR28C45-DSPR |
|
Industrial | SOP8 | -40~125℃ | SSR/PSR | 20kHz~500kHz | 20V | 8.2V | 7.5V | / | 0.1mA | 1mA | 50% | / | / | Boost, Flyback, SEPIC |
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