PT3931 PROLIFIC | Alldatasheet
Document overview
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Technical content
Single Coil Fan Driver ()Proli Ic \\ TECHNOLOGY FOR TOMORROW Key Features 52 rin Losin i 4.5V~30V supply voltage = > y-ossang [T sa ll Single phase full wave | ee ° _ & Soft switching output Pas Nunber 3951 @ Built-in Hall sensor Date Codes Youn 30 ® Motor locked protection eo i & automatic restart of ESD protection: 8KV eae: [stots PS , F @ Support pre-driver a application @ Built-in hysteresis + vopioe ae ae ae comparator . I 2.01/First Sotput pin Y Built-in Zener diode 3.02/Second output pin. [Poa to ee] 4.GND/DC ground @ High sensitivity & low thermal drift magnetic The PT3931 is designed for magnetic actuating using a bipolar sensing magnetic field. The built-in dynamic offset cancellation of pre-amplifier Ml Low power consumption stage achieves optimal symmetrical magnetic sensing. The output & high driving efficiency driver provides a linear drive to eliminate switching noise. This motor driver IC is especially designed for OA cooling fan solution or industry equipments such as inverters or fan trays. The supply voltage range is from 4.5V to 30V.
Applications
Absolute Maximum Ratings (Ta=25°C) @ Brushless DC motor @ Cooling fan for industry ee | Max.outputcurrent | tomax [| ossec | soo? ma | ee CT a *1: Reduced by 4.5mW for each increase in Ta of 1°C over 25°C When mounted on 50mm x 50mm x 1.6mm glass epoxy board *2: Should not exceed Pd Prolific Technology Inc. http://www. prolific.com.tw