| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 500 kHz |
| Number of Pins | 8 Pin |
| Case/Package | SOIC-8 |
| Number of Outputs | 1 Output |
| Output Voltage | 16.6 V |
| Output Current | 700 mA |
| Power Dissipation | 0.625 W |
| Switching Frequency | 500 kHz |
| Input Voltage (Max) | 27.6 V |
| Input Voltage (Min) | 8 V |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -25 ℃ |
| Power Dissipation (Max) | 625 mW |
| Input Voltage | 8V ~ 16.6V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Obsolete |
| Packaging | Each |
| Size-Length | 5 mm |
| Size-Width | 4 mm |
| Size-Height | 1.5 mm |
| Operating Temperature | -25℃ ~ 150℃ (TJ) |
The IRS25401SPBF is a high voltage high frequency buck control IC for constant LED current regulation. It incorporates a continuous mode time-delayed hysteretic buck regulator to directly control the average load current, using an accurate on-chip band-gap voltage reference. This part directly replaces the IRS2540 and IRS2541 with improved latch-up immunity. The application is inherently protected against short circuit conditions, with the ability to easily add open-circuit protection. An external high-side bootstrap circuit drives the buck switching element at high frequencies. A low-side driver is also provided for synchronous rectifier designs.
● Auto restart, non-latched shutdown
● PWM dimming
● ±2% Voltage reference
● 140ns Dead-time
● 15.6V Zener clamp on VCC
● Up to 500kHz frequency
● <500µA Micropower start-up
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