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CYD3172X HALL-EFFECT
SWITCH IC |
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CYD3172X Hall effect latch IC is
composed of a reverse protector, voltage regulator, Hall voltage
generator, differential amplifier, Schmitt trigger and an
open-collector output on a single silicon chip. ICs can convert the
changeable magnetic field signal into digital voltage output.
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FEATURES |
TYPICAL APPLICATION |
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•
High Sensitivity
• Resistant to Physical Stress
• Wide Supply Voltage Range
• Interfacing with All Kinds of Logic
Circuits Directly |
•
High Sensitive Non-contact Switch
• DC Brushless Motor
• DC Brushless Fan |
ABSOLUTE
MAXIMUM RATINGS
|
Parameter |
Symbol |
Value |
Unit |
|
Min |
max |
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|
Supply Voltage |
Vcc |
4.5V ~ 24V |
V |
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Magnetic Flux Density |
B |
unlimited |
unlimited |
mT |
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Output Current |
Io |
- |
25 |
mA |
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Operating Temperature Range |
TA |
-40 |
85 |
°C |
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Storage Temperature Range
|
TS |
-65 |
170 |
°C |
FUNCTIONAL BLOCK DIAGRAM
ELECTRICAL
CHARACTERISTICS
|
Parameter |
Test Conditions |
Symbol |
Value |
Unit |
|
Min |
type |
max |
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Supply Voltage |
Vcc=4.5V～24V |
VCC |
4.5 |
- |
24.0 |
V |
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Output Low Voltage |
Vcc=4.5V RL=960Ω |
VOL |
- |
0.2 |
0.4 |
V |
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Output Leakage Current |
Vo=Vccmax B≤BRP |
IOH |
- |
1.0 |
10.0 |
μA |
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Supply Current |
Vcc=Vccmax open-collector output |
Icc |
|
- |
12.0 |
mA |
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Output Rise time |
Vcc=12V RL=820Ω CL=20pF |
tr |
- |
1.0 |
2.0 |
μS |
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Output Fall time |
tf |
- |
1.0 |
2.0 |
μS |
Magnetic-Electrical
Transfer Characteristics
Magnetic Characteristics (Unit: mT)
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Parameter |
Value |
Unit |
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Min |
|
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Operate Point (BOP) |
1 |
- |
7 |
mT |
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Release Point (BRP) |
-7 |
- |
-1 |
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Hysteresis (BH) |
4 |
- |
- |
Characteristics Curves
Package Outline Drawing (Unit: mm)
Pin Notes: 1. Power Supply 2.
Ground 3. Output
Cautions:
1) It is possible that outside
mechanical stress affects the operating point and the release point
of Hall-effect circuit, therefore, mechanical stress should be
lessened as far as possible in the process of assembly;
2) Pay attention to the soldering temperature at the leads; keep it
lower in a short time to guarantee good soldering quality.
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