GENERAL DESCRIPTION
An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply voltage. CR211 could support 300mA driven current and wide operating voltage range. FG signal, an open collector, provides a square waveform output for the detection of the motor speed. 2. Feature On-chip Hall sensor with two different sensitivity and hysteresis settings Two complementary output Build in FG output for speed detection compatible with CMOS and TTL interface Wide operating voltage range:4V~20V Output sink current up to 300mA 3. Application Range Dual-coil Brush-less DC Motor Dual-coil Brush-less DC Fan Revolution Counting Speed Measurement Tel: +86-514-87782298, 87782296 FAX:+86-514-87782297, 87367519 E-mail :positioning@china.com; yzforever@vip.tom.com; yzpst@pst888.com WEB SITE： YANGZHOU POSITIONING TECH. CO., LTD 4. Block Diagram 5. Pin DESCRIPTION
Pin Number 1 2 3 4 Symbol FG DO DOB GND 6.
