AN48810B Datasheet, PDF (1/6 Pages) Panasonic Semiconductor – Low current consumption, high sensitivity CMOS Hall IC One-way magnetic field operation

Hall ICs
AN48810B
Low current consumption, high sensitivity CMOS Hall IC
One-way magnetic field operation
■ Overview
The AN48810B is a Hall IC (a magnetic sensor) which
has 2 times or more sensitivity and a low current consump-
tion of about one three-hundredth compared with our
conventional one.
In this Hall IC, a Hall element, a offset cancel circuit,
an amplifier circuit, a sample and hold circuit, a Schmidt
circuit, and output stage FET are integrated on a single
chip housed in a small package by IC technique.
■ Features
• High sensitivity (6 mT max.) due to offset cancel circuit
and a new sample and hold circuit
• Small current by using intermittent action
• Small package (SMD)
• CMOS inverter output
Unit: mm _0.22+-00..0150 _{0.13 M}
5
4
123
0.65 0.65
1.30±0.10
2.00±0.10
0.10 _{Seating plane}
123
5
4
SMINI-5DA (Lead-free package)
■ Applications
• Flip type cellular phone, digital video camera
■ Block Diagram
V_CC
5
N.C.
N.C.
3
4
CLK
On/Off control
Hall
element
Sample
Switch
and
hold
Amplifier
1 _Out
2
GND
Note) The magnetism detection time should be longer than one intermittent action cycle (On = 200 µs and Off = 51 ms).
■ Pin Descriptions
Pin No. Symbol
1
Out
2
GND
3
N.C.
Description
Output
Ground
Pin No.
4
5
Symbol
N.C.
V_CC
Description
Power supply
Publication date: November 2002
SPC00016AEB
1