tda5145ts-c1 NXP Semiconductors, tda5145ts-c1 Datasheet - Page 2

• Manufacturer Part Number: tda5145ts-c1
• Description: Brushless Dc Motor Drive Circuit
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
Measured over full voltage and temperature range.
Notes
1. An unstabilized supply can be used.
2. V
ORDERING INFORMATION
1998 Oct 27
V
V
V
I
TDA5145TS
LIM
Full-wave commutation (using push-pull drivers at the
output stages) without position sensors
Built-in start-up circuitry
Three push-pull outputs:
– Output current 2.0 A (typ.)
– Built-in current limiter
– Soft-switching outputs for low Electromagnetic
Thermal protection
Flyback diodes
Motor brake facility
Direction control input
Reset function.
P
i(VMOT)
DO
Brushless DC motor drive circuit
NUMBER
SYMBOL
TYPE
Interference (EMI).
VMOT
= V
P
; all outputs I
supply voltage
input voltage to the output driver
stages
drop-out output voltage
current limiting
SSOP24
NAME
PARAMETER
o
= 0 mA.
plastic shrink small outline package; 24 leads;
body width 5.3 mm
note 1
note 2
I
V
o
VMOT
= 100 mA
CONDITIONS
= 10 V; R
2
DESCRIPTION
APPLICATIONS
GENERAL DESCRIPTION
The TDA5145TS is a bipolar integrated circuit used to
drive 3-phase brushless DC motors in full-wave mode.
The device is sensorless (saving of 3 hall-sensors) using
the back EMF sensing technique to sense the rotor
position. It includes bidirectional control, brake function
and has a special circuit built-in to reduce the EMI
(soft-switching output stages).
PACKAGE
General purpose spindle driver e.g.:
– Hard disk drive
– Tape drive
– Optical disk drive.
o
= 1.2
4
1.7
1.8
MIN.
0.90
2.0
TYP.
Product specification
TDA5145TS
18
16
1.05
2.5
MAX.
SOT340-1
VERSION
V
V
V
A
UNIT