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Número de pieza | US72 | |
Descripción | (US72 / US73) Single Coil Fan Driver | |
Fabricantes | Melexis | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de US72 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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US72/73
Single Coil Fan Driver
Features and Benefits
Full Bridge Driver
High Sensitivity Hall Sensor
Locked Rotor Shutdown and Auto-Restart
Power-Efficient CMOS and Power MOSFETs
Integrated tachometer (US72) or alarm (US73) signal outputs
Applications
For 12V/24V Fans
Ordering Information
Part No.
US72
US73
Temperature Suffix
E (-40°C to 85°C)
E (-40°C to 85°C)
Package Code
DC (8-Pin narrow SOIC)
DC (8-Pin narrow SOIC)
Functional Diagram
Out1
3
P1
Regulator Clamp
Hall
Amp.
Out2
6
P2
Vdd
1
8
Gate Drive
Switching
Logic
Gate Drive
Locked-Rotor
N1 Protection N2
2
FG/RD
Gnd
4
75
Description
The US72 and US73 provide a monolithic
solution for driving single-coil fans. The bridge
drivers provide bi-directional current through the
single phase motor winding.
US72: The tachometer/Frequency Generator
(FG) version produces a logic signal, which is
aligned with the Hall plate signal.
US73: The Rotation Detector (RD) / Alarm
Signal version has a low output in the normal
condition. When a locked rotor condition occurs
the RD changes to a high state.
3901090261
Rev. 002
Page 1 of 9
Data Sheet
May/04
1 page US72/73
Single Coil Fan Driver
7. Performance Graphs
Rdson (NMOS + PMOS)
vs.
Vdd, Temperature
US72 / 73
10
8
4V
6
5V
4 12 V
30 V
2
0
-40
0 40 80 120
Junction Tem perature (C)
Bop, Brp
vs.
Temperature
5 US72 / 73
Bop
3
1
-1
Brp
-3
-5
-40 0 40 80 120
Junction Temperature (C)
Rdson (NMOS + PMOS)
vs.
Vdd, Temperature
US72 / 73
10
8
6 125
4
25
2
0
4 8 12 16 20 24 28
Vdd Voltage (V)
Bop, Brp
vs.
Vdd Voltage
US72 / 73
5
Bop
3
1
-1
Brp
-3
-5
0 10 20 30
Vdd (Volts)
3901090261
Rev. 002
Page 5 of 9
Data Sheet
May/04
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet US72.PDF ] |
Número de pieza | Descripción | Fabricantes |
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US72 | (US72 / US73) Single Coil Fan Driver | Melexis |
US73 | (US72 / US73) Single Coil Fan Driver | Melexis |
US79 | CMOS Power Hall IC | ETC |
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