Product Features: 1.Single power supply. 2.Selectable phase drive (1/1, 1/2, 1/4, 1/8, and 1/16 step). 3.Forward and reverse rotation control available. 4.Ron (upper + lower) = 0.4 Ω. 5.Output voltage: VCC = 50 V. 6.Output current: IOUT = 5.0 A (absolute maximum ratings, peak, within 100ms) IOUT = 4.5 A (operating range, maximal value). 7.Packages: HZIP25-1.00F. 8.Built-in input pull-down resistance: 100 kΩ (typ.) 9.Output monitor pins (ALERT): Maximum of IALERT = 1 ma. 10.Output monitor pins (MO): Maximum of IMO = 1 ma. 11.Equipped with reset and enable pins. 12.Stand by function. 13.BiCD 0.13 (50 V) process. 14.Built-in : thermal shutdown (TSD) circuit,under voltage lock out (UVLO) circuit,over-current detection (ISD) circuit.