CC6403 Datasheet | CrossChip

CC6403/4 DS-CC6403/4-EN-rev1.7 cross MOTOR series 5V/12V/24V 450m A Single Coil Fan Driver with Auto-start and FG or RD General Description CC6403/4 is a one-chip solution for driving single-coil brushless DC fans and motors ， which is fabricated with innovative high voltage Bi CMOS process. It includes high sensitivity hall sensor, chopper stabilized amplifier, dynamic offset cancellation, thermal protection and a low RDSON full bridge driver. With the benefit of the advanced process, the chip consumed power is very low, just only 2m A, much smaller than the drivers fabricated by bipolar process. Its robustness perfectly suits for consumer applications. CC6403/4 has auto-restart function. When the fan is mechanically blocking, IC will shutdown the coil current and restart every time until the blocking release. Thus, the current flow the coil is low enough and protect the fan from over-heating. CC6403/4 can withstand the instantaneous 40V high voltage to ensure the reliability of the fan in various application environments. CC6403 has Speed counting function (Tachometer Output FG), CC6404 has Locking alarm function (Alarm Output RD). CC6403/4 is available in two packages, which are SOT89-5 and SOT335. The operation temperature range is -40~125°C. Features - Built-in High Sensitivity Hall Sensor - Low Rdson with 1.5Ω - Low Power Consumption, Typical 2m A - Locked Rotor Protection and Auto-restart - Driving Capability: - Maximum Continuous Current: 450m A - Peak Output Current: 1500m A - Tachometer Output FG(CC6403) or Alarm Output RD(CC6404) - Superior Temperature Stability - Resistant to Physical Stress - ESD (HBM) 6000V Application - Single Phase BLDC Fans - Single Phase BLDC Motors Function Block Diagram Copy Right Reserved by Cross Chip Microsystems Co. LTD 2023 https://.crosschipmicro. Ordering Information Part No. CC6403ST CC6404ST CC6403SS CC6404SS PIN Configurations Description SOT89-5 SOT89-5 SOT335 SOT335 DS-CC6403/4-EN-rev1.7 cross MOTOR...