L6229D STMicroelectronics, L6229D Datasheet - Page 12
![IC MOTOR DRIVER 3PHASE 24-SOIC](/photos/6/88/68802/497-24-soic__7_5mm_width__series_sml.jpg)
L6229D
Manufacturer Part Number
L6229D
Description
IC MOTOR DRIVER 3PHASE 24-SOIC
Manufacturer
STMicroelectronics
Type
Driverr
Datasheet
1.L6229DTR.pdf
(25 pages)
Specifications of L6229D
Applications
DC Motor Driver, Brushless (BLDC), 3 Phase
Number Of Outputs
1
Current - Output
2.8A
Voltage - Supply
12 V ~ 52 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Operating Temperature Classification
Automotive
Package Type
SO
Operating Supply Voltage (min)
12V
Operating Supply Voltage (max)
52V
Operating Supply Voltage
8 V to 52 V
Supply Current
1.4 A
Mounting Style
SMD/SMT
Motor Type
Three Phase DC Brushless
No. Of Outputs
3
Output Current
3.55A
Output Voltage
52V
Supply Voltage Range
8V To 52V
Driver Case Style
SO
No. Of Pins
24
Rohs Compliant
Yes
For Use With
497-5491 - EVAL BOARD FOR L6229PD SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Load
-
Lead Free Status / Rohs Status
Compliant
Other names
497-5839-5
L6229D
L6229D
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L6229D
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
L6229DTR
Manufacturer:
STMicroelectronics
Quantity:
1 924
L6229
Figure 13. Area where t
can vary maintaining the PWM regulation.
ON
100
10
1.5µs (typ. value)
1
0.1
1
10
100
Coff [nF]
3.4 SLOW DECAY MODE
Figure 14 shows the operation of the bridge in the Slow Decay mode during the Off Time. At any time only two
legs of the three-phase bridge are active, therefore only the two active legs of the bridge are shown in the figure
and the third leg will be off. At the start of the Off Time, the lower power MOS is switched off and the current
recirculates around the upper half of the bridge. Since the voltage across the coil is low, the current decays slow-
ly. After the Dead Time the upper power MOS is operated in the synchronous rectification mode reducing the
impendence of the freewheeling diode and the related conducting losses. When the monostable times out, up-
per MOS that was operating the synchronous mode turns off and the lower power MOS is turned on again after
some delay set by the Dead Time to prevent cross conduction.
Figure 14. Slow Decay Mode Output Stage Configurations
A) ON TIME
B) 1µs DEAD TIME
C) SYNCHRONOUS
D) 1µs DEAD TIME
RECTIFICATION
D01IN1336
12/25