Features
• Maximum Ratings
⎯ Supply voltage Vcc: 24 V
⎯ Junction temperature Tj: from –40 to +150 degrees centigrade
• Electrical characteristics
⎯ VFB feedback voltage VREF: 2.5 V ± 1.5%
⎯ UVLO (Undervoltage Lockout) operation start voltage VH: 10.4 V ± 0.7 V
⎯ UVLO operation shutdown voltage VL: 8.9 V ± 0.5 V
⎯ UVLO hysteresis voltage Hysuvl : 1.5 V ± 0.5 V
• Functions
⎯ Boost converter control with continuous conduction mode
⎯ Interleaving control
⎯ Frequency modulation (*2)
⎯ Brownout
⎯ Phase drop (*1)
⎯ External clock synchronization input
⎯ External clock synchronization output (*1)
⎯ Two modes of over voltage protections
Mode 1: Dynamic OVP preventing over voltage after sudden variation of load.
Mode 2: Static OVP preventing over voltage in the period of normal operation.
⎯ Feedback loop wire breaking/open detector
⎯ Dual over voltage protection circuits (*1): FB and OVP2 terminals
⎯ Current balance control
⎯ Phase 1 and Phase 2 independent over current protection
⎯ Package line-up
Pb-free LQFP-40 (R2A20104FP, R2A20114FP)
Pb-free SOP-20 (R2A20104SP, R2A20114SP)