KMI25/2 KMI25/4 High performance rotational speed sensor Rev. 1 29 April 2016 Product data sheet 1. Product profile 1.1 General description Based on the Anisotropic MagnetoResistive (AMR) effect, the KMI25/2 and the KMI25/4 detect the rotational speed of target wheels. The KMI25/2 is used with active target wheels (multipole encoders) and the KMI25/4 is used with passive target wheels (ferromagnetic gear wheels). This design delivers secure speed information over a wide range of speed, air gap and temperature. It delivers the speed information via a current protocol at the supply pins. CAUTION Do not press two or more products together against their magnetic forces and do not let them collide with each other. 1.2 Features and benefits System in package Two wire current interface Rotational direction detection Digital output protocol ArbeitsKreis protocol (AK protocol) Large range of air gap Large range of operating terminal voltage Wide temperature range High ElectroStatic Discharge (ESD) protection Very low jitter Automotive qualified in accordance with AEC-Q100 Rev-G (grade 0)KMI25/2 KMI25/4 NXP Semiconductors High performance rotational speed sensor 1.3 Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit V supply voltage normal operation mode T 170 C 6.8 - 16 V CC amb referred to pin GND T ambient temperature normal operation mode 40 - +150 C amb I LOW-level supply current 5.88 7.0 8.4 mA CCL I MID-level supply current 11.7 14.0 16.8 mA CCM I HIGH-level supply current 23.5 28.0 33.6 mA CCH f magnetic field strength 0- 2.5 kHz H frequency H peak magnetic field after power-on speed pulses latest after N M cy(H) strength magnetic cycles see characteristics in Table 10 KMI25/2 150 - - A/m KMI25/4 190 - - A/m 2. Pinning information Table 2. Pinning Pin Symbol Description Simplified outline KMI25/2 KMI25/4 1V supply pin CC 2 DI digital input pin 3 GND ground pin 3. Ordering information Table 3. Ordering information Type number Package Name Description Version KMI25/2 SIP3 plastic single-ended multi-chip package magnetized ferrite magnet SOT477A (3.8 2 0.8 mm) 4 interconnections 3 in-line leads KMI25/4 SIP3 plastic single-ended multi-chip package magnetized ferrite magnet SOT477E (5.2 4.25 2.95 mm) 4 interconnections 3 in-line leads KMI25 2 4 All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2016. All rights reserved. Product data sheet Rev. 1 29 April 2016 2 of 26