DN6851 Hall IC (Operating Supply Voltage Range VCC=3.6 to 16V, Operating in Alternative Magnetic Field) ■ Overview 2.0±0.3 The DN6851 is an integrated circuit making use of Hall effects. It is designed particularly for operating at a low supply voltage in alternative magnetic field. It is suitable for various sensors and contactless switches. Unit : mm 1.0 4.0±0.3 0.7 4.5±0.3 5˚ ■ Features 10.5±0.5 • Wide range of supply ; 3.6 to 16V • Operating in alternative magnetic field. • TTL and MOS ICs directly drivable by output • Semipermanent service life because of no contact parts • Drivable with a small magnet • 3-pin SIL plastic package (3-SIP) 0.8±0.1 + 0.1 0.43 – 0.05 0.5±0.1 1.27 5˚ ■ Applications • Speed sensors • Position sensors • Rotation sensors • Keyboard switches • Microswitches 1 2 3 5˚ 2˚ 1 : VCC 2 : GND 3 : Output 2˚ SSIP003-P-0000A (E-3S) Note) This IC is not suitable for car electrical equipments. ■ Block Diagram Stabilized power supply 1 VCC 3 Output 2 GND 27kΩ Hall element Amp. Schmitt trigger Output stage ■ Absolute Maximum Ratings (Ta=25˚C) Symbol Rating Supply voltage Parameter VCC 18 Unit V Supply current ICC 8 mA Circuit current IO 20 mA Power dissipation PD 100 mW Operating ambient temperature Topr –40 to +85 ˚C Storage temperature Tstg –55 to +125 ˚C ■ Electrical Characteristics (Ta=25˚C) Parameter Symbol Operating flux density Low output voltage VCC=12V B2 (H to L) VCC=12V VCC=16V, IO=12mA, B=30mT VCC=3.6V, IO=12mA, B=30mT VCC=16V, IO=–30µA, B=–30mT VCC=3.6V, IO=–30µA, B=–30mT VCC=16V, VO=0V, B=–30mT VOL High output voltage Condition B1 (L to H) VOH Output short-circuit current –IOS Supply current ICC min typ 0.4 V mA VCC=16V 6 mA VCC=3.6V 5.5 mA 1.3 1.0 0.4 0.9 S Output voltage (VO) Marking surface N V V ■ Flux-Voltage Conversion Characteristics 1 : VCC 2 : GND 3 : Output 0.4 2.2 Unit : mm The center of the Hall element is in the hatched area in the left figure. 3 mT V 1.75 2 30 14.6 ■ Hall Element Position 1 Unit mT Note 1) Operating supply voltage range VCC (opr)= 3.6 to 16V Note 2) For the operating flux density, ±20 gauss is also available as Rank A. 1.0 max –30 Applied flux direction ■ Precaution on Use 1. Change of the operation magnetic flux density dose not depend on the supply voltage, because the stabilization power supply is built-in. (only for the range; VCC = 4.5 to 16V) 2. Change from “H” to “L” level increases the supply current by approx. 1mA. B1 Flux density (B) B2