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Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 18-80 V |
| Schaltfrequenz | 100-10000 kHz |
| Ausgang 1 | 12 V / 20 A |
| IC-Revision | 1.00 |
Beschreibung
The ISL81802EVAL1Z dual-phase evaluation board (shown in Figure 4) features the ISL81802, an 80V high voltage dual synchronous buck controller that offers external soft-start, independent enable functions, and integrates UV/OV/OC/OT protection. A programmable switching frequency ranging from 100kHz to 1MHz helps to optimize inductor size while the strong gate driver delivers up to 20A for the buck output.
Eigenschaften
- Wide input range: 18V to 80V
- High light-load efficiency in pulse skipping DEM operation
- Programmable soft-start
- Optional DEM/PWM operation
- Optional CC/HICCUP OCP protection
- Supports pre-bias output with soft-start
- PGOOD indicator
- OVP, OTP, and UVP protection
- Back biased from output to improve efficiency