ES1221LUA

◆ RoHS Compliant: (EU)2015/863 The ES1221 is a Latch Hall effect sensor IC fabricated from BCD technology. The device integrates a voltage regulator, Hall sensor with dynamic offset ◆ Automotive, Consumer and Industrial cancellation system, Schmitt trigger and an open-drain ◆ Solid-state switch output driver with over-current protection, all in a single ◆ Brushless DC motor commutation package. ◆ Speed detection It incorporates advanced chopper stabilization ◆ Linear position detection techniques to provide accurate and stable magnetic ◆ Angular position detection switch points. There are many applications for this ◆ Proximity detection sensor in addition to those listed above. The design, specifications and performance have been optimized for commutation applications in 5V to 12V brushless DC motors. Thanks to its wide operating voltage range and extended choice of temperature range, it is quite suitable for use in automotive, industrial and consumer applications. The device is delivered in a Small Outline Transistor (SOT/DFN) for surface mount process and in a Plastic Single In Line (TO-92 flat) for through- hole mount. Both 3-lead packages are RoHS compliant. SO Pin No. UA Pin No. Name Type Function 1 1 VDD Supply Supply Voltage Pin 2 3 OUT Output Open Drain Output Pin 3 2 GND Ground Ground Pin ES1221 ◆ Operating voltage range from 2.8V to 24V ◆ magnetic sensitivity – +/-30GS ◆ BCD technology ◆ -28V Reversed Power Supply Protection ◆ -40℃~150℃ Operating Temperature ◆ Output Limiting Current Protection on) when a magnetic field perpendicular to the Hall ◆ Open drain output sensor exceeds the operate point threshold, B OP. After ◆ ESD turn-on, the output voltage is VDSon. Note that the device 5KV The ES1221 exhibits latch magnetic switching characteristics. Therefore, it requires both south and north poles to operate properly. The OUT pin of these devices switches low (turns latches, that is, a south pole of sufficient strength towards the branded surface of the device turns the [文档标题] INNOSEN device on. The device remains on if the south pole is removed (B→0). This latching property defines the device as a magnetic memory. Based on BCD technology, InnoSen ES1221 is a Hall-effect device with precise magnetic sensitivity. This multi-purpose latch suits most of the application requirements. The chopper-stabilized amplifier uses switched capacitor technique to suppress the offset generally observed with Hall sensors and amplifiers. The CMOS technology makes this advanced technique possible and contributes to smaller chip size and lower current consumption than bipolar technology. The small chip size is also an important factor to minimize the effect of physical stress. This combination results in more stable When the magnetic field is reduced below the release point, BRP, the OUT pin turns off (goes high). The difference in the magnetic operate and release points is the hysteresis, BHYS, of the device. This built-in hysteresis prevents output oscillation near the switching point, and allows clean switching of the output even in the presence of external mechanical vibration and electrical noise. magnetic characteristics and enables faster and more precise design. The operating voltage from 2.8V to 24V, low current consumption and large choice of operating temperature range according to “L”, and “E” specification make this device suitable for automotive, industrial and consumer applications. The device behaves as a latch with symmetric operating and release switching points (BOP=|BRP|). This means magnetic fields with equivalent strength and opposite direction drive the output high and low. Powering-on the device in the hysteresis region (less than BOP and higher than BRP) allows an indeterminate output state. The correct state is attained after the first excursion beyond BOP or BRP. The SOT-23 device is reversed from the UA and DFN package. The SOT-23 output transistor will be latched on in the presence of a sufficiently strong North pole magnetic field applied to the marked face. [文档标题] Parameter Symbol Value Units Supply Voltage VDD 28 V Reverse Battery Voltage VRCC -28 V Output Voltage VOUT 28 V Continuous Output Current IOUT 30 mA Operating Temperature Range TO -40 ~ 150 ℃ Storage Temperature Range TS -50 ~ 150 ℃ Maximum Junction Temperature TJ 165 ℃ Output clamp current Iocp 60 mA The electrostatic capacity ESD 5 KV Symbol Value Units Temperature Suffix “E” TA -40 ~ 85 ℃ Temperature Suffix “L” TA -40 ~ 150 ℃ Operating Temperature Range Note: Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute- maximum- rated conditions for extended periods may affect device reliability. INNOSEN DC Operating Parameters Ta = 25℃，VDD= 3V to 24V Parameter Symbol Test Conditions Min Typ Supply Voltage VDD Operating 2.8 Supply Current IDD B < BRP Output Saturation Voltage VDSon IOUT = 20mA, B > BOP Output Leakage Current IOFF B BOP Low B < BRP High Performance Characteristics It is strongly recommended that an external bypass capacitor be connected (in close proximity to the Hall sensor) between the supply (VDD Pin) and ground (GND Pin) of the device to reduce both external [文档标题] INNOSEN is 0.75 1.52 ± 0.02 1．9 6 3° ± 1° 0．89 45° ± 1° 4.0 ± 0.02 3.90 1 2 2 1 3 4 Sensor Location 1 2 2 1 0.05 ± 0.05 3.90 0.38 3 4 Active Area Depth: 2.41±0.2 0.44 3.90 3.0 ± 0.02 ES21 xxxx 0.84(Nom) 3° ± 1° 6° ±1° 3° ± 1° 6° ±1° 14 ± 1 Notes: 1). Controlling dimension: mm; 2). Leads must be free of flash and plating voids; 3). Do not bend leads within 1 mm of lead to package interface; 4). PINOUT: Pin 1 VDD Pin 2 GND Pin 3 Output Marking: ES21 -- Code of Device (ES1221); 1.27 [文档标题] XXXX -- Production Lot; INNOSEN Top View Notes: 1). PINOUT: 3 21XXX 1 1.50 2.65 1.70 2.95 Pin 1 VDD Pin 2 Output Pin 3 GND 2). All dimensions are in millimeters; Marking: 21 -- Code of Device (ES1221); XXX -- Production Lot; 2 1.80 2.00 Side View End View 2.82 3.02 1.05 1.15 3.00 0.70 0.90 3.00 0.10 0.20 3.00 0.30 0.60 3.00 0.00 0.10 3.00 0.30 0.50 3.00 Bottom View of SOT-23 Package 3 Chip 0.85 0.75 2 3 Part No. 0.56 0.66 1 2 1.50 1.40 Temperature Suffix Package Code SO (SOT-3L) E ( -40℃ ~ 85℃) ES1221 SO (SOT-3L) L ( -40℃ ~ 150℃) [文档标题] UA (TO-92) UA (TO-92) INNOSEN