US890 Melexis Company, US890 Datasheet - Page 4

• Manufacturer Part Number: US890
• Description: Two-coil Fan Driver ? High Output Curren
• Manufacturer: Melexis Company

DC Operating Parameters T
Table 3: Electrical specifications
Note 1: The minimal value of V
Note 2: Typical values valid at 5.5V. The values increase at lower voltage to improve fan start-up reliability.
DC Operating Parameters T
Table 4: Magnetic specifications
8 Driver Output vs Magnetic Pole
Table 5: Driver output vs magnetic pole
Note 1: The magnetic pole is applied facing the branded side of the package
3901000890
Rev 002
Parameter
Parameter
Parameter
6 General Electrical Specifications
7 Magnetic Specifications
Test Conditions
Symbol
A
A
= 25
= 25
DD
Test Conditions
should be determined using the following equation:
o
o
C, V
C, V
Symbol Test Conditions
DD
DD
= 12V (unless otherwise specified)
= 12V (unless otherwise specified)
V
OUT1
DD
Two-Coil Fan Driver – High Output Current
=2.5V + R
Page 4 of 12
OUT2
COIL
°
°
* I
DD
FG
Ω
US890 / US891
Min
Min
Typ
Typ
Max
Max
Units
Data Sheet
Sep/07
Units
Ω
Ω
°
µ