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| 10.50.5 Hall IC (Operating Temperature Range Topr = - 40 to +100C, Operating in Alternative Magnetic Field) s Overview The DN6847/SE/TE/S is a combination of a Hall element, amplifier, Schmitt circuit, and stabilized power supply/temperature compensator integrated on an identical chip by using the IC technology. It amplifies Hall element output at the amplifier, converts into a digital signal through the Schmitt circuit, and drives the TTL or MOS IC directly. 4.00.3 0.80.1 0.7 DN6847/SE/TE/S DN6847 4.50.3 1.0 2.00.3 Unit : mm 5 0.50.1 1.27 123 5 2 5 0.43 - 0.05 1 : VCC 2 : GND 3 : Output + 0.1 2 SSIP003-P-0000A (E-3S) 4.520.3 4.520.3 (1.0) 2 Unit : mm DN6847SE s Features * High sensitivity and low drift * Stable temperature characteristics due to the additional tem* * * * perature compensator Wide operating supply voltage range (VCC=4.5 to 16V) Operating in alternative magnetic field TTL and MOS ICs directly drivable by output Provided with the output pull-up resistors (typ 27k) 0.550.15 45 (1.0) 12.506.5 (0.72) 0.40.1 1.27 2 to 5 123 2 R0.25 (0.4) 1.540.1 1 : VCC 2 : GND 3 : Output Unit : mm (0.6) 0.50.1 10.00.6 3.30.3 s Applications * Speed sensors * Position sensors * Rotation sensors * Keyboard switches * Microswitches Note) This IC is not suitable for car electrical equipments. SSIP003-P-0000C (SE-3S) DN6847TE 4.00.3 (1.0) (0.7) s Block Diagram * DN6847/SE/TE Stabilized power supply temperature correction circuit 0.60.15 (1.0) 1.27 27k 1 VCC Output 1.20.1 (0.2) 1 : VCC 2 : GND 3 : Output Unit : mm 123 3 SSIP003-P-0000B (TE-3S) DN6847S 2 Hall element Amp. Schmitt trigger Output stage 0.60.2 2 3 * DN6847S NC or GND 2 Stabilized power supply temperature correction circuit 27k 1 0.950.2 VCC 0.40.2 3 Output 0.3 to 0.5 3.00.3 5.40.4 4 Hall element Amp. Schmitt trigger Output stage GND ESOP004-P-0200 (SOH-4D) 1 : VCC 2 : NC or GND 3 : Output 4 : GND 0.15 0 to 0.1 1.50.3 3.00.3 GND 1 4 1.6 s Absolute Maximum Ratings (Ta=25C) Parameter Supply voltage Supply current Circuit current Power dissipation Operating ambient temperature Storage temperature Symbol VCC ICC IO PD Topr Tstg Rating 18 8 20 150 -40 to +100 -55 to +125 Unit V mA mA mW C C s Electrical Characteristics (Ta=25C) Parameter Operating flux density Hysteresis width Symbol B1 (L to H) B2 (H to L) BW VOL Output voltage VOH VCC=12V VCC=12V VCC=12V VCC=4.5 to 16V, IO=12mA, B=17.5mT VCC=16V, IO= -30A, B= -17.5mT VCC=4.5V, IO=-30A, B= -17.5mT VCC=16V, VO=0V, B= -17.5mT VCC=16V VCC=4.5V 7 Condition min -17.5 typ -6 6 10 0.4 14.7 2.9 0.4 1 1 0.9 6 5.5 17.5 max Unit mT mT mT V V V mA mA mA Output short-circuit current Supply current - IOS ICC s Hall Element Position * DN6847 1.0 1.75 * DN6847SE 1.0 1.63 1.25 1.3 * DN6847TE 1.0 1.5 1.15 * DN6847S 0 1. 1. 0 1.5 Unit : mm The center of the Hall element is in the hatched area in the right figure. 1.0 1.0 1.0 1.5 Distance from package surface to sensor DN6847 0.7 DN6847SE 0.42 DN6847TE 0.4 DN6847S 0.65 s Flux-Voltage Conversion Characteristics Marking surface OUtput voltage (VO) B1 B2 Applied flux direction Flux density (B) s Precaution on Use 1. Change of the operation magnetic flux density does 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. s Characteristics Curve Supply voltage - Ambient temperature 8 VCC =12V 7 20 20 Ta =25C Operating flux density - Ambient temperature Operating flux density - Supply voltage Operating flux density (mT) Supply current (mA) 6 VCC=16V 5 4 VCC= 4.5V 3 2 1 0 Operating flux density (mT) 10 Sample 1, BH to L BH to L 10 0 Sample 2, BH to L Samp le 3, BH to L 0 BL to H -10 Sample 1, -10 BL to H Sample 2, BL to H Sample 3, BL to H -20 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 -20 0 2 4 6 8 10 12 14 16 18 20 Ambient temperature (C) Ambient temperature (C) Supply voltage (V) Output low level voltage - Ambient temperature 100 90 VCC =12V IO =12mA Output "L" level voltage (mV) 80 70 60 50 40 30 20 10 0 -50 -25 0 25 50 75 100 125 Ambient temperature (C) |
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