Allegro Microsystems A81850 | Demoboard APEK81850

Beschreibung

The A81850 is a synchronous boost/buck/buck-boost controller with programmable outputs and a SPI communication interface capable of 80 W per channel. The device integrates two half-bridge drivers able to create a dual-channel synchronous boost or buck converter or a single-channel synchronous buck-boost converter.

Eigenschaften

• Two-channel synchronous boost or buck controllers orsingle-channel buck-boost controller
• Wide VIN range: 5 to 37 V operating, 40 V transient
• Output voltage ranges:□ Boost mode: 16 to 65 V, with 2% accuracy□ Buck mode: 3.3 to 6 V, with 1.5% accuracy□ Buck-boost mode: 5 to 22 V, with 2% accuracy
• Programmable output voltage□ 8-bit resolution in boost and buck-boost mode□ 3.3 V, 4.5 V, 5 V, 5.5 V, and 6 V in buck mode
• Fixed-frequency operation, 200 to 450 kHz
• Array mode supports in-parallel operation of up to twounits (four phases): Units can be synchronized

Typische Anwendungen

• Electronic Power Steering, Information Systems and Entertainment

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers