L6230PD STMicroelectronics, L6230PD Datasheet - Page 17
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L6230PD
Manufacturer Part Number
L6230PD
Description
Motor / Motion / Ignition Controllers & Drivers DMOS Driver 3-Phase Brushless DC Motor
Manufacturer
STMicroelectronics
Type
DMOS Driverr
Datasheet
1.L6230PD.pdf
(24 pages)
Specifications of L6230PD
Product
Fan / Motor Controllers / Drivers
Operating Supply Voltage
8 V to 52 V
Supply Current
1.4 A
Mounting Style
SMD/SMT
Package / Case
PowerSO-36
Operating Temperature
- 40 C to + 125 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
L6230PD
Manufacturer:
STMicroelectronics
Quantity:
310
L6230
6.3
Figure 15. Six-step with current control typical application
Six-step driving method with BEMF zero crossing detection
The BEMF zero crossing information can be used to evaluate the rotor position; in this way
no Hall effect sensors or encoder are needed.
In six-step driving mode one of the three phases is left in high impedance state.
Comparing the voltage of this phase with the center-tap voltage we can detect the BEMF
zero-crossing.
In shown example (see
center-tap voltage is obtained as combination of three phase voltages and monitored by the
CP- pin. Only when the OUT1 is in high impedance, the CPOUT will perform a commutation
each time a BEMF zero crossing is detected.
In this configuration one sense resistor is needed, the three OUT pins are connected
together to R
SENSE
.
Figure
Doc ID 18094 Rev 1
16), the OUT1 phase voltage is monitored by the CP+; the
Application information
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