TDA5146T Philips Semiconductors, TDA5146T Datasheet - Page 2

• Manufacturer Part Number: TDA5146T
• Description: Brushless DC motor drive circuit
• Manufacturer: Philips Semiconductors

1. An unstabilized supply can be used
2. V
Philips Semiconductors
FEATURES
APPLICATIONS
General purpose spindle driver (e.g., HDD, tape driver)
GENERAL DESCRIPTION
The TDA5146T is a bipolar integrated circuit used to drive brushless DC motors in full–wave mode. The device senses the rotor position using
an EMF –sensing technique and is ideally suited as a drive circuit for a hard disk drive motor or tape drive.
QUICK REFERENCE DATA
Measured over full voltage and temperature ranges
NOTES:
ORDERING AND PACKAGE INFORMATION
Symbol
V
Vsup
V
V
I
Type n mber
Type number
TDA5146T
1994 May 18
LIM
Full–wave commutation (using push/pull drivers at the output stages) without position sensors
Built–in start–up circuit
Three push–pull outputs:
– 2 A output current (Typical)
– Built–in current limiter
Thermal protection
Soft switching outputs
Flyback diodes
Tacho output sensor
Brake function
Direction control input
Reset function
FET driver stage to be used in a buck converter
P
VMOT
D
Brushless DC motor drive circuit
o
VMOT
=V
P
; all outputs I
Parameter
Supply voltage range (Note 1)
Supply for the FET driver voltage range
Input voltage to the output driver stages (see Fig. 1)
Driver output voltage drop I
Current limiting
O
= 0 mA
Package
Name
SO28
Description
plastic small outline package; 28 leads; body width 7.5 mm
O
= 100 mA
2
Min.
4
4
1.7
–
1.80
Typ.
–
–
–
0.9
2.0
Max.
18
18
16
1.05
2.5
Product specification
TDA5146T
Version
SOT136-1
Unit
V
V
V
V
A