VG481V1

VG481V1 Back Biased Hall-effect Speed Sensor Integrated Circuit (IC) DESCRIPTION VALUE TO CUSTOMERS The VG481V1 contains a dual peak • Uses a dual peak detecting circuit detecting circuit that is coupled with a derived from the stored peak and Hall-effect element to detect the speed valley values. This provides zero speed of a ferrous gear tooth target wheel. A capability and more accurately tracks biasing magnet provides a changing targets that exhibit run-out and other magnetic field as the target wheel variations. moves past the senor IC. The sensor IC functions in reference to peak and slot magnetic levels. The sensor IC output is in either a high state or a low state, which • AEC-Q100 qualified and often suitable for automotive applications. • Provides higher accuracy. corresponds to the target tooth/slot POTENTIAL APPLICATIONS FEATURES features. The VG481V1 IC consists of a • Transportation: Transmission speed • Back-biased speed sensor IC voltage regulator, clock/oscillator, Hallelement, amplifier, internal peak/valley sensing • General speed sensing • Zero-speed capable • Low cost and easy to use track and hold circuits, comparator, and • 4 V to 24 V supply voltage range open collector output stage. The sensor • -40°C to 150°C operating temperature IC is protected from abnormal operation range at low voltage by a power-on rest circuit. • Open collector output rated for 20 mA The output circuitry contains short • Output short circuit protection circuit protection. The voltage regulator • Reverse voltage protected contains reverse connection protection. • Qualified to AEC-Q100 (Grade 0) The slicing level is derived from the stored peak and valley values. A start-up algorithm holds the output state until PORTFOLIO the slicing level has reached a stable The Honeywell VG481V1 position. The VG481V1 is zero speed Speed Sensor IC joins the following capable after initial startup as long as related products: VM721V1, VM721D1, power is applied. The VG481V1 IC is VF401, VF526DT. To view the entire offered in flat TO-92-style package with product portfolio, click here. straight leads in bulk packaging which allows for a compact PC board layout. DIFFERENTIATION Provides lesser operate point variation. BACK-BIASED HALL-EFFECT SPEED SENSOR INTEGRATED CIRCUIT ICS VG481V1 TABLE 1. ELECTRICAL SPECIFICATIONS (AT 4.0 V ≤ VS ≤ 24 V, -40°C ≤ TA ≤ 150°C, UNLESS OTHERWISE SPECIFIED) CHARACTERISTIC CONDITION MIN. TYP. MAX. UNIT Supply voltage Pin 2 referenced to Pin 1 4 14 24 V Reverse supply voltage current < 10 mA — — -26 V Supply current Vsupply = 24 V, with “ON” state — — 10 mA Startup time Vsupply = 4 V — — 10 ms Output short circuit short load — 10 — µs Output leakage current Vsupply = 24 V, with “OFF” state — — 10 µA Output current (sinking) continuous operation (recommended) — — 5 mA Output saturation voltage sinking 20 mA — — 360 mV Switching frequency: rise time fall time VCC = 12 V, R L=2 kOhm; C L = 20 pF VCC = 12 V, R L=2 kOhm; C L = 20 pF — — — — 10 1 µs µs 1 ms Power up ramp time1 0 V to 4 V, power up in high state 1 If the power up ramp time from 0 V to 4 V is greater than 1 ms, proper IC functionality cannot be guaranteed. TABLE 2. MAGNETIC SPECIFICATIONS CHARACTERISTIC CONDITION MIN. TYP. MAX. UNIT Back bias range South pole facing back of package 500 — 4000 Gauss Peak magnetic field for linear operation — — 4500 Gauss Switching differential 25°C — 5 — Gauss Minimum signal lockout peak to valley difference — 38.5 — Gauss Magnetic signal continuous operation (recommended) 75 — — Gauss Output signal frequency — 0 27.5 10000 Hz Die placement tolerance X and Y -0.07 — 0.07 mm MIN. TYP. MAX. UNIT 8 — — kV MIN. TYP. MAX. UNIT TABLE 3. ENVIRONMENTAL SPECIFICATIONS CHARACTERISTIC CONDITION ESD (HBM) JEDEC JS-001 TABLE 4. ABSOLUTE MAXIMUM RATINGS CHARACTERISTIC CONDITION Operating temperature ambient -40 — 150 °C Storage temperature ambient, unbiased -55 — 150 °C Soldering temperature applied for