L6235D013TR STMicroelectronics, L6235D013TR Datasheet - Page 14

IC DRIVER 3PHASE DC MOTOR 24SOIC

L6235D013TR

Manufacturer Part Number
L6235D013TR
Description
IC DRIVER 3PHASE DC MOTOR 24SOIC
Manufacturer
STMicroelectronics
Type
Driverr
Datasheet

Specifications of L6235D013TR

Applications
DC Motor Driver, Brushless (BLDC), 3 Phase
Number Of Outputs
1
Current - Output
5.6A
Voltage - Supply
12 V ~ 52 V
Operating Temperature
-25°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Operating Current
10mA
Operating Temperature Classification
Automotive
Package Type
SO
Operating Supply Voltage (min)
12V
Operating Supply Voltage (typ)
42V
Operating Supply Voltage (max)
52V
Operating Supply Voltage
7 V to 52 V
Supply Current
0.006 A
Mounting Style
SMD/SMT
For Use With
497-4935 - BOARD MOTOR BRUSHLESS DC L6235
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Load
-
Lead Free Status / Rohs Status
Compliant
Other names
497-4009-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L6235D013TR
Manufacturer:
ST
0
Part Number:
L6235D013TR
Manufacturer:
ST
Quantity:
180
L6235
TACHO
A tachometer function consists of a monostable, with constant off time (t
signal (H
14. For component values refer to Application Information section.
The monostable output drives an open drain output pin (TACHO). At each rising edge of the Hall Effect Sensors
H
t
to the pin RCPULSE. Figure 16 gives the relation between t
where C
By connecting the tachometer pin to an external pull-up resistor, the output signal average value V
tional to the frequency of the Hall Effect signal and, therefore, to the motor speed. This realizes a simple Fre-
quency-to-Voltage Converter. An op amp, configured as an integrator, filters the signal and compares it with a
reference voltage V
Figure 14. Tacho Operation Waveforms.
14/25
PULSE
1
, the monostable is triggered and the MOSFET connected to pin TACHO is turned off for a constant time
t
PULSE
V
(see Figure 15). The off time t
M
PUL
1
). It allows developing an easy speed control loop by using an external op amp, as shown in Figure
=
should be chosen in the range 1nF … 100nF and R
= 0.6 · R
t
----------------- - V
P ULS E
T
REF
PUL
, which sets the speed of the motor.
DD
· C
V
PUL
TACHO
H
H
H
V
M
1
2
3
PULSE
can be set using the external RC network (R
t
PULSE
V
T
DD
PULSE
PUL
and C
in the range 20K
PULSE
PUL
, R
), whose input is one Hall Effect
PUL
. We have approximately:
… 100K .
PUL
, C
PUL
) connected
M
is propor-

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