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CYD175 Hall Effect Latch IC Switch
for High Temperature
CYD175 is a single-digital-output
Hall-effect sensor for high temperature operation. The device
includes an on-chip Hall voltage generator for magnetic sensing, an
amplifier to amplify Hall voltage, and a comparator to provide
switching hysteresis for noise rejection, and an open-collector
output pre-driver. An internal band gap regulator is used to provide
temperature compensated supply voltage for internal circuits and
allows a wide operating supply range.
While the magnetic flux density (B) is larger than threshold Bop,
the OUT pin turns on (low). If B removed toward Brp, the OUT pin is
latched “on” state prior to B < Brp. When B < Brp, the OUT pin go
into “off ” state.
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FEATURES |
TYPICAL APPLICATION |
|
-
Bipolar Hall effect latch sensor
- 3.5V to 20V DC operation voltage
- Open collector pre-driver
- 25mA output sink current
- Chip power reverse-connection protection
- Operating temperature: -40°C~150°C |
-
Rotor position sensing
- Current switch
- Encoder
- RPM detection |
Absolute Maximum Ratings (At Ta= 25°C)
|
Parameter |
Symbol |
Value |
Unit |
|
Min |
Max |
|
Supply Voltage |
VCC |
3.5 |
20 |
V |
|
Output “OFF ” Voltage |
Vout (off) |
20 |
|
V |
|
Output “ON” Current |
Io (sink) |
|
25 |
mA |
|
Operating Temperature Range |
Top |
-40 |
150 |
°C
|
|
Storage Temperature Range |
Tstg |
-65 |
150 |
°C |
|
Maximum Junction Temperature |
Tj |
|
150 |
°C |
Electrical Characteristics (Ta= 25°C )
|
Parameter |
Symbol |
Conditions |
Value |
Unit |
|
Min |
type |
max |
|
Supply
Voltage |
VCC
|
|
3.5
|
- |
20
|
V
|
|
Output
Saturation Voltage |
Vout(sat)
|
CC=12V,
OUT ”ON”, Io =10mA |
|
300
|
400
|
mV
|
|
Supply
Current |
ICC
|
VCC=12V,
OUT ”OFF” |
|
3.5
|
6.0
|
mA
|
Magnetic Characteristics (Ta= 25°C ) (1mT = 10 Gauss)
|
Parameter |
Symbol |
grade |
Value |
Unit |
|
Min |
type |
max |
|
Operate Point |
BOP |
A |
1.5 |
4 |
6 |
mT |
|
B |
0.5 |
4 |
8 |
|
|
Release Point |
BRP |
A |
-6 |
-4 |
-1.5 |
mT |
|
B |
-8 |
-4 |
-0.5 |
|
|
Hysteresis |
BH |
A |
3 |
8 |
12 |
mT |
|
B |
10 |
8 |
16 |
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