TDA5142 Philips Semiconductors, TDA5142 Datasheet - Page 2

• Manufacturer Part Number: TDA5142
• Description: Brushless DC motor drive circuit
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
Measured over full voltage and temperature range.
Note
1. An unstabilized supply can be used.
ORDERING INFORMATION
June 1994
V
V
V
I
TDA5142T
LIM
Full-wave commutation without position sensors
Built-in start-up circuitry
Six outputs that can drive three external transistor pairs:
– output current 0.2 A (typ.)
– low saturation voltage
– built-in current limiter
Thermal protection
Tacho output without extra sensor
Transconductance amplifier for an external
control transistor
Motor brake facility.
P
VMOT
O
Brushless DC motor drive circuit
SYMBOL
TYPE NUMBER
supply voltage
input voltage to the output
driver stages
driver output voltage
current limiting
PARAMETER
PINS
24
note 1
I
I
V
O
O
VMOT
= 100 mA; lower transistor
= 100 mA; upper transistor
= 14.5 V; R
PIN POSITION
CONDITIONS
2
APPLICATIONS
GENERAL DESCRIPTION
The TDA5142T 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 a brake function and 6 pre-drivers able to
control FETs or bipolar external transistors. It is ideally
suited for high-power applications such as high-end hard
disk drives, automotive and other applications.
SOL
High-power applications e.g.:
– high-end hard disk drives
– automotive.
O
= 47
PACKAGE
4
3
1.05
150
MIN.
MATERIAL
plastic
200
TYP.
Product specification
TDA5142T
18
18
0.35
250
MAX.
SOT137-1
CODE
V
V
V
V
mA
UNIT