DESCRIPTION The VF526DT Bipolar Latch, Dual Hall-effect Digital Position The VF526DT’s built-in temperature compensation is designed Sensor has two distinct Hall sensing elements precisely to match the temperature coefficient of low-cost magnets, located 1,4 mm [0.055 in] apart on a single integrated circuit allowing for a reliable, yet cost-effective, sensor-magnet chip. The elements are encapsulated in a thermoset molding combination. material. A unique, regulator circuit provides extremely stable operation The two active Hall latches provide speed and direction with supply voltages from 3.4 Vdc to 24 Vdc. It can directly indication of a magnetic gradient (such as a rotating ring interface with many electronic components without buffering or magnet) across the face of the package. compensation circuitry. The miniature, 4-pin SOT-89B package surface mounts on PC (Printed Circuit) boards and flexible circuits. FEATURES AND BENEFITS POTENTIAL APPLICATIONS Temperature-compensated magnetics and ultra-low offset Transportation drift with temperature provides a stable output over a full Anti-pinch electric motor control systems for: temperature range of -40 °C to 125 °C [-40 °F to 257 °F]. power windows Single, miniature 4-pin SOT-89B plastic package supplied power seats (headrest) on tape and reel for automated assembly, allowing power sliding doors potential savings in PC board space and labor cost. sunroofs Two separate built-in Hall sensors and their associated Magnetic encoding for electronic steering systems logic circuitry provide a frequency signal for speed output Industrial and a logic level (high or low) signal for direction output, Motion control systems for pulleys and belts potentially replacing multiple sensors and electronic Garage door openers and sliding doors components. Position and velocity detection in industrial equipment Wide operating voltage range of 3.4 Vdc to 24 Vdc Linear displacement sensing (using a magnetic strip of increases application flexibility. alternating poles) Tested to moisture sensitivity similar to JEDEC J-STD- 020B, MSL Level 1, allowing the VF526DT to be used in environments where humidity may be a problem. RoHS-compliant materials meet Directive 2002/95/EC.

Table 1. Absolute Maximum Ratings1 Characteristic Sym. Min. Max. Unit Note 1: Absolute maximum ratings are the Supply voltage Vcc -0.5 30 V extreme limits that the device will withstand Output voltage (OFF) Vout -0.5 30 V without damage to the device. However, the Output ON current Iout – 10 mA electrical and mechanical characteristics are not Storage temperature Ts -65 [-85] 160 [320] °C [°F] guaranteed as the maximum limits (above Operating temperature T -40 [-40] 150 [302] °C [°F] recommended operating conditions) are ESD: approached, nor will the device necessarily IEC 801-2, Lev 1 ESD 2 – KV operate at absolute maximum ratings. MIL-STD-883, Method 3015.7 4 – Magnetic flux no limit – Table 2. Specifications Characteristic Sym. Condition Min. Typ. Max. Unit Magnetic actuation type bipolar latch dual open collector, sinking Output type (speed and direction) Supply voltage Vcc – 3.4 – 24 Vdc Operating temperature Temp Vcc = 3.4 V to 24 V -40 [-40] – 125 [257] °C [°F] Vcc = 24 V, -40 °C < T < 125 °C, Supply current (OFF) Ioff – – 12 mA Vout = 24 V, B<MIN REL Vcc = 24 V, -40 °C < T < 125 °C, Supply current (ON) Ion – – 14 mA Isink = 5 mA, B<MAX OP Vcc = 24 V, -40 °C < T < 125 °C, Load current Isink – – 5 mA Isink = 5 mA, B<MAX OP Vcc = 24 V, -40 °C < T < 125 °C, Output saturation Vsat – – 0.4 V Isink = 5 mA, B<MAX OP Circuit speed to direct delay Td Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF – – 5 µs Rise time Tr Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF – – 1.5 µs Fall time Tf Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF – – 1.5 µs Frequency Top Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF <1 – >1000 Hz T = 25 °C – 130 – Gaus Operate point Bop -40 °C < T < 125 °C 60 – 200 s T = 25 °C – -130 – Gaus Release point Brel -40 °C < T < 125 °C -60 – -200 s T = 25 °C – 260 – Gaus Differential (OP-REL) Diff -40 °C < T < 125 °C 200 – 320 s T = 25 °C – 0 – Gaus Symmetry ([OP +REL]/2) Sym -40 °C < T < 125 °C -65 – 65 s Package style SOT-89B Moisture sensitivity test similar to JEDEC J-STD-020B, MSL Level 1 Package quantity available in 1000/tape and reel Figure 1. Output Timing Diagram Change Td Direction Td SPEED DIRECTION Td TIME 2 www.honeywell.com/sensing

Figure 2. Sensor Function Diagram with Customer-Supplied Magnet When the change in magnetic flux at Hall 1 leads SPEED the change at Hall 2, the direction output is HIGH; N S Hall 1 Trigger and OUTPUT Amplifier when it follows Hall 2, the direction output is LOW. Hall 2 Trigger and S N Amplifier DIRECTION Logic OUTPUT Figure 3. Mounting Dimensions (For reference only. mm/[in].) Tape Solder Pad 2,5 [0.098] 2,0 0,8 [0.079] [0.031] B 2,6 [0.102] A 4,6 [0.181] 1,2 1 2 3 [0.047] 0,7 TYP 0,8 TYP [0.028] [0.031] Honeywell Sensing and Control 3

Figure 3. Mounting Dimensions (continued) Reel Order Guide Catalog Listing Description VF526DT Bipolar latch, dual hall-effect digital position sensor with speed and direction outputs, on tape and reel (1000 pcs per reel) WARNING WARNING MISUSE OF DOCUMENTATION PERSONAL INJURY The information presented in this product sheet is for DO NOT USE these products as safety or emergency stop reference only. Do not use this document as a product devices or in any other application where failure of the installation guide. Complete installation, operation, and maintenance product could result in personal injury. information is provided in the instructions supplied with Failure to comply with these instructions could result each product. in death or serious injury. Failure to comply with these instructions could result in death or serious injury. SALES AND SERVICE WARRANTY/REMEDY Honeywell serves its customers through a worldwide network Honeywell warrants goods of its manufacture as being free of of sales offices, representatives and distributors. For defective materials and faulty workmanship. Honeywell’s application assistance, current specifications, pricing or name standard product warranty applies unless agreed to otherwise of the nearest Authorized Distributor, contact your local sales by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific office or: warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, E-mail: info.sc@honeywell.com at its option, without charge those items it finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of Internet: www.honeywell.com/sensing merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, Phone and Fax: or indirect damages. Asia Pacific +65 6355-2828 +65 6445-3033 Fax While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the Europe +44 (0) 1698 481481 customer to determine the suitability of the product in the +44 (0) 1698 481676 Fax application. Latin America +1-305-805-8188 +1-305-883-8257 Fax Specifications may change without notice. The information we USA/Canada +1-800-537-6945 supply is believed to be accurate and reliable as of this +1-815-235-6847 printing. However, we assume no responsibility for its use. +1-815-235-6545 Fax Sensing and Control Honeywell 1985 Douglas Drive North Golden Valley, MN 55422 005870-2-EN IL50 GLO Printed in USA December 2009 www.honeywell.com/sensing © 2009 Honeywell International Inc. All rights reserved.