SD1579 Silan Microelectronics, SD1579 Datasheet

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SD1579

Manufacturer Part Number
SD1579
Description
Hall IC Fan Motor Driver
Manufacturer
Silan Microelectronics
Datasheet
www.DataSheet4U.com
ORDERING INFORMATION
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
Hall IC Fan Motor Driver
DESCRIPTION
BICDMOS process
low Rdson, low power dissipation and capable of withstanding high
output drive current.
with automatic restart function. Built-in voltage regulator circuit for the
Hall sensor and amplifier circuit to provide internal power supply;
consistency and very small magnetic shift of the window over the whole
temperature range,.
supply-side built-in reverse protection diodes, which can effectively
prevent damage when the power supply circuit is reverse.
FEATURES
The driver of the motor circuit built-in Locked-rotor protection circuit,
The dynamic compensation circuit capable of providing good
Built-in Zener output as the output protection management and in the
SD1579 is a one-chip, two phase Hall IC fan driver use the advanced
* Wide operating voltage range, small quiescent current;
* Built-in lock protection circuit;
* Built-in Auto restart circuit;
* Built-in Hall sensor with high stability of the dynamic compensation
circuit;
* Built-in Hall amplifier with hysteresis;
* Built-in Zener Diodes protect outputs circuit;
* Built-in Voltage Regulator circuit.
* Built-in Reverse-voltage protection diode
* Hall magnetic window, consistency and temperature stability;
* Low Rdson, high drive current capability;
Part No.
SD1579
.
Power output stage using LDMOS transistors, with
Package
TO-94
Marking
1579
APPLICATIONS
Material
* Dual coils brush-less DC fan;
* Dual coils brush-less DC motor.
Pb free
REV:1.0
TO - 94
Package Type
Page 1 of 7
2009.11.11
Bulk

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SD1579 Summary of contents

Page 1

... Hall IC Fan Motor Driver DESCRIPTION SD1579 is a one-chip, two phase Hall IC fan driver use the advanced . BICDMOS process Power output stage using LDMOS transistors, with low Rdson, low power dissipation and capable of withstanding high output drive current. The driver of the motor circuit built-in Locked-rotor protection circuit, with automatic restart function. Built-in voltage regulator circuit for the Hall sensor and amplifier circuit to provide internal power supply ...

Page 2

... Supply Voltage Supply Current Output Saturation voltage Output Saturation voltage Thermal Resistance Locked-Rotor Period Locked-Rotor Period Output Zener-breakdown Voltage *Note: Please used in power dissipation limitation for all coil with different efficiency. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn Symbol Ratings V max ...

Page 3

... Every output is locking until the flux B is less than release point Brp, then DO and DOB switch the states. PIN CONFIGURATION PIN DESCRIPTION www.DataSheet4U.com Pin No. Pin Name DOB 4 GND HALL SENSOR LOCATION HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn (Unless specified particularly T Symbol Test Conditions Bop Operating BRP Operating BHYS Operating I/O -- Power supply O Driver Output pin ...

Page 4

... FUNCTION DESCRIPTION This IC detects the rotation of the motor by hall signal, and adjusts lock detection ON time (T detection OFF time (T OFF) www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn =3.0S by internal counter. The time (T ) =0.5S and lock sequence is shown below. NO OFF REV:1.0 2009.11.11 Page ...

Page 5

... TEST CIRCUIT TYPICAL APPLICATION CIRCUIT www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn REV:1.0 2009.11.11 Page ...

Page 6

... V 3. SD1579 has built-in reverse protection diodes need; If you increase the D1 can better protect the chips, as shown in Figure 3; it should be noted that care should to taken to the two coils current when power voltage reversed www ...

Page 7

... Silan products could cause loss of body injury or damage to property. Silan will supply the best possible product for customers! HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn UNIT: mm REV:1.0 2009 ...

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