AK8781

MP

Ultra-Small 0.76mm x 0.76mm WL-CSP package latch-type Hall IC

Ultra-Small 0.76mm x 0.76mm WL-CSP package latch-type Hall IC

MP

Description

The AK8781 is an ultra-small latch-type Hall IC that integrates a Hall element and a waveform shaping IC. It is the smallest class latch-type Hall IC in the industry and AKM's smallest size ever with 60% reduction in package size from the conventional product AK8771. Ultra-small package (0.76mm x 0.76mm x t = 0.38mm) is suitable for rotor position detection of small DC brushless motors.
(AKM is the Asahi Kasei Microdevices Corporation)
In addition, it features fast response time and high temperature operation, contributing to microminiaturization and high efficiency of motors.

Key Features

  • Ultra-small package (0.76mm x 0.76mm x t = 0.38mm) is suitable for rotor position detection of small DC brushless motors.
  • The AK8781 has fast response capability, so that it can detect high-speed rotation as fast as 95,000r/min *.   * Example: rotor poles 4 and phase delay within 5°of the electric angle
  • The operating temperature range of the AK8781 has been expanded from -30 to 85 °C of the AK8771 to -40 to 125 °C.  This product can be used safely not only in the industrial machinery field but also in small DCBL motors that do not dissipate heat easily.

Applications

  •                                 Small DCBL motors
                                

Specifications

Part Number
AK8781
Type
Latch
Power Supply Voltage (MIN.) [V]
2.5
Power Supply Voltage (TYP.) [V]
3
Power Supply Voltage (MAX.) [V]
5.5
Sensitivity Bop [mT]
1.9
Sensitivity Brp [mT]
-1.9
Output stage
CMOS
Current Consumption (TYP.) [mA]
2.5
Current Consumption (MAX.) [mA]
6
Drive System
Continuous
Other

                                
Operating Temperature [℃]
-40 to 125
Device Package
WLCSP
Number of Pins
4

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
Yes
MSL
MSL1
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
5000
Replacement P/N

                                

Block Diagram

Block Diagram