data sheet 1 2000-07-01 the ksy 14 is an ion-implanted hall sensor generator in a mono-crystalline gaas material, built into an extremely flat plastic package (soh). it is outstanding for a high magnetic sensitivity and low temperature coefficients. the 0.35 0.35 mm 2 chip is mounted onto a non-magnetic leadframe. type marking ordering code ksy 14 14 q62705-k227 hall sensor ksy 14 version 2.0 dimensions in mm features ? high sensitivity ? high operating temperature ? small linearity error ? low offset voltage ? low tc of sensitivity and internal resistance ? ultra-flat plastic miniature package ? low inductive zero component ? package thickness 0.7 mm ? connections from one side of the package typical applications ? current and power measurement ? magnetic field measurement ? control of brushless dc motors ? rotation and position sensing ? measurement of diaphragm ? movement for pressure sensing
data sheet 2 2000-07-01 ksy 14 absolute maximum ratings electrical characteristics ( t a = 25 c) parameter symbol limit values unit operating temperature t a C 40 ? + 175 c storage temperature t stg C 50 ? + 180 c supply current i 1 7ma thermal conductivity soldered, in air g tha g thc 3 1.5 3 2.2 mw/k mw/k nominal supply current i 1n 5ma open-circuit sensitivity k b0 190 ? 260 v/at open-circuit hall voltage i 1 = i 1n , b = 0.1 t v 20 95 ? 130 mv ohmic offset voltage i 1 = i 1n , b = 0 t v r0 20 mv linearity of hall voltage b = 0 ? 0.5 t b = 0 ? 1 t f l 0.2 0.7 % % input resistance b = 0 t r 10 900 ? 1200 w output resistance b = 0 t r 20 900 ? 1200 w temperature coefficient of the open-circuit hall voltage i 1 = i 1n , b = 0.1 t tc v20 ~ C 0.03 ? C 0.07 %/k temperature coefficient of the internal resistance b = 0 t tc r10, r20 ~ 0.1 ? 0.18 %/k change of offset voltage within the temperature range ?d v r0 ? 1) 2mv inductive zero component i 1n =0 a 2 2) 0.16 cm 2 noise figure f ~ 10 db 1) aql: 0.65 2) with time varying induction there exists an inductive voltage v ind between the hall voltage terminals (supply current i 1 = 0): v ind = a 2 d b /d t 10 -4 with v (v), a 2 (cm 2 ), b (t), t (s)
data sheet 3 2000-07-01 ksy 14 connection of a hall sensor with a power source since the voltage on the component must not exceed 10 v, the connection to the constant current supply should only be done via a short circuit by-pass. the by-pass circuit-breaker shall not be opened before turning on the power source, in order to avoid damage to the hall sensor due to power peaks. polarity of hall voltage
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