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Hall ICs DN8797MS 3 V operation Hall IC One-way magnetic field operation Unit: mm I Overview The DN8797MS is a 3 V operation Hall IC which includes a Hall element, amplifier circuit, Schmidt circuit, stabilized power supply and temperature compensation circuit which are integrated on a single chip with a fine patterning technology. The magnetic input signal is outputted by being converted to high or low. We have improved the conventional circuit to realize a stable operation covering from low to high supply voltage and from low to high temperature. 2.80 +0.20 -0.30 0.650.15 1.50 +0.25 -0.05 0.650.15 0.95 1.900.20 2.90 +0.20 -0.05 1 0.95 3 2 1.10 +0.20 -0.10 * Wide operating supply voltage range (VCC = 2.7 V to 14.4 V) * Wide operating ambient temperature (-40C to +85C) * Package: Mini type (3-pin type) (1.1 mm thick: Same as a standard transistor) * Eqipped with an output pull-up resistor (typical 56 k) 0 to 0.10 I Features 0.80 0.10 to 0.30 0.400.20 MINI-3D Note) The package of this product will be changed to lead-free type (MINI-3DA). See the new package dimensions section later of this datasheet. I Applications * DC brushless motor, fan motor, rotation sensor, detection of cover open/close (example for a cellular phone), position sensor 2 VCC I Block Diagram Constant voltage source 56 k (typ.) Comparator Hall element Amplifier 1 Out GND 3 32 0.16 +0.10 -0.06 0.40 +0.10 -0.05 1.45 Hall IC I Pin Descriptions Pin No. 1 2 3 Symbol Out VCC GND Description Output pin Supply voltage pin Ground pin DN8797MS I Absolute Maximum Ratings Parameter Supply voltage Symbol VCC VOUT Supply current Power dissipation Operating ambient temperature Storage temperature ICC PD Topr Tstg Rating 18 18 120 -20 to +85 -55 to +125 mA mW C C Unit V Note) 1. Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25C. 2. The reverse insertion of this IC will cause its breakdown. 3. It will operate normally in several tens of ms after power on. 4. This IC is not suitable for car electrical equipment. I Recommended Operating Range Parameter Supply voltage Symbol VCC Range 2.7 to 14.4 Unit V I Electrical Characteristics at Ta = 25C Parameter Operating magnetic flux density 1 Operating magnetic flux density 2 Hysteresis width Output voltage 1 Output voltage 2 Output voltage 3 Output voltage 4 Output short-circuited current Supply current 1 Supply current 2 Symbol BH-L BL-H BW VOL1 VOL2 VOH1 VOH2 -IOS ICC1 ICC2 VCC = 3 V VCC = 3 V VCC = 3 V VCC = 14.4 V, IO = 5 mA, B = -22 mT VCC = 2.7 V, IO = 5 mA, B = -22 mT VCC = 14.4 V, IO = -20 A, B = -3 mT VCC = 2.7 V, IO = -20 A, B = -3 mT VCC = 14.4 V, B = -3 mT, VO = 0 V VCC = 14.4 V, B = -3 mT VCC = 2.7 V, B = -3 mT Conditions Min -20 0.2 12.8 1.05 0.19 1.0 1.0 Typ 1.5 0.07 0.07 13.3 1.55 0.27 3.4 2.5 Max -3 4 0.30 0.30 13.8 2.05 0.39 6.0 6.0 Unit mT mT mT V V V V mA mA mA Note) 1. Symbol BH-L stands for the operating magnetic flux density where its output level varies from high to low. 2. Symbol BL-H stands for the operating magnetic flux density where its output level varies from low to high. 3. The variation of operating magnetic flux density does not depend on supply voltage due to its built-in stabilized power source. (VCC should be confined to the range of 2.7 V to 14.4 V.) 4. A supply current changes by maximum 1 mA when its output level varies from high to low. 33 |
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