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Specifications
Current - Supply:
16mA
Interface:
SSI;PWM
Voltage - Supply:
3V~5.5V
Mfr. Part #:
AS5045B-ASST
Package:
SSOP-16-208mil
Key Attributes
Model Number:
AS5045B-ASST
Product Description
Product Overview
The AS5045B is a 12-bit programmable magnetic position sensor designed for accurate angular measurement over a full 360-degree turn. This system-on-chip integrates Hall elements, analog front end, and digital signal processing, requiring only a simple two-pole magnet for operation. It offers absolute angle measurement with a resolution of 0.0879 degrees (4096 positions per revolution) and provides digital data via a serial bit stream or a PWM signal. The device supports both 3.3V and 5V supply voltages.
Product Attributes
- Brand: ams OSRAM Group
- Product Name: AS5045B
- Type: 12-Bit Programmable Magnetic Position Sensor
- Package: SSOP 16 (5.3mm x 6.2mm)
- Operating Temperature Range: -40C to 125C
Technical Specifications
| Parameter | Min | Typ | Max | Units | Condition |
|---|---|---|---|---|---|
| Operating Conditions | |||||
| Ambient Temperature | -40 | 125 | C | ||
| Supply Current | 16 | 21 | mA | ||
| Supply Voltage (VDD5V) | 4.5 | 5.0 | 5.5 | V | 5V operation |
| Voltage Regulator Output (VDD3V3) | 3.0 | 3.3 | 3.6 | V | |
| Supply Voltage (VDD5V) | 3.0 | 3.3 | 3.6 | V | 3.3V operation (VDD5V and VDD3V3 connected) |
| Supply Voltage (VDD3V3) | 3.0 | 3.3 | 3.6 | V | |
| Power-on Reset Threshold (On voltage; VDD3V3) | 1.37 | 2.2 | 2.9 | V | 3.3V DC supply |
| Power-on Reset Threshold (Off voltage; VDD3V3) | 1.08 | 1.9 | 2.6 | V | |
| Programming Conditions | |||||
| Programming Voltage | 3.3 | 3.6 | V | Voltage applied during programming | |
| Programming Voltage Off Level | 0 | 1 | V | Line must be discharged to this level | |
| Programming Current | 100 | mA | |||
| Programmed Fuse Resistance | 10k | 10A max. current @ 100mV | |||
| Unprogrammed Fuse Resistance | 50 | 100 | 2mA max. current @ 100mV | ||
| DC Characteristics (CMOS Schmitt-Trigger Inputs: CLK, CSn) | |||||
| High Level Input Voltage (VIH) | 0.7 * VDD5V | V | Normal operation | ||
| Low Level Input Voltage (VIL) | 0.3 * VDD5V | V | |||
| Schmitt Trigger Hysteresis (VIon-VIoff) | 1 | V | |||
| Input Leakage Current (ILEAK; CLK only) | -1 | 1 | A | ||
| Pull-up Low Level Input Current (IiL; CSn only) | -30 | -100 | A | VDD5V: 5.0V | |
| DC Characteristics (CMOS / Program Input: PDIO) | |||||
| High Level Input Voltage (VIH) | 0.7 * VDD5V | VDD5V | V | ||
| High Level Input Voltage (VIH) | 3.3 | 3.6 | V | During programming | |
| Low Level Input Voltage (VIL) | 0.3 * VDD5V | V | |||
| High Level Input Current (IIH) | 30 | 100 | A | VDD5V: 5.5V | |
| DC Characteristics (CMOS Output Open Drain: MagINCn, MagDECn) | |||||
| Open Drain Leakage Current (IOZ) | 1 | A | |||
| Low Level Output Voltage (VOL) | VSS | VSS + 0.4 | V | ||
| Output Current (IO) | 4 | mA | VDD5V: 4.5V | ||
| Output Current (IO) | 2 | mA | VDD5V: 3V | ||
| DC Characteristics (CMOS Output: PWM) | |||||
| High Level Output Voltage (VOH) | VDD5V 0.5 | V | |||
| Low Level Output Voltage (VOL) | VSS | VSS +0.4 | V | ||
| Output Current (IO) | 4 | mA | VDD5V: 4.5V | ||
| Output Current (IO) | 2 | mA | VDD5V: 3V | ||
2410010201_AMS-AS5045B-ASST_C5375289.pdf
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