L6235D STMicroelectronics, L6235D Datasheet - Page 11

• Manufacturer Part Number: L6235D
• Description: IC DRIVER 3PH DC MOTOR 24SOIC
• Manufacturer: STMicroelectronics
• Type: Driverr

Specifications of L6235D

• 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 Supply Voltage: 7 V to 52 V
• Supply Current: 0.006 A
• Mounting Style: SMD/SMT
• Motor Type: Three Phase DC Brushless
• No. Of Outputs: 3
• Output Current: 7.1A
• Output Voltage: 52V
• Supply Voltage Range: 8V To 52V
• Driver Case Style: SO
• No. Of Pins: 24
• Operating Temperature Range: -40°C
• Rohs Compliant: Yes
• 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: Lead free / RoHS Compliant
• Other names: 497-4009-5; 497-4216-5; 497-4216-5

Figure 10 shows the lower limit for the On Time t
to be said that t
than t
So, small C
switching frequency), but, the smaller is the value for C
performance.
Figure 9. t
Figure 10. Area where t
RCRISE
OFF
OFF
- t
ON
DT
versus C
value gives more flexibility for the applications (allows smaller On Time and, therefore, higher
. In this last case the device continues to work but the Off Time t
is always bigger than t
OFF
ON
can vary maintaining the PWM regulation.
1 . 10
1 . 10
and R
100
100
10
10
1
1
4
3
0.1
0.1
OFF
ON(MIN)
.
1.5 s (typ. value)
R
off
because the device imposes this condition, but it can be smaller
= 20k
ON
1
1
for having a good PWM current regulation capacity. It has
R
off
Coff [nF]
Coff [nF]
OFF
= 47k
, the more influential will be the noises on the circuit
R
off
= 100k
10
10
100
100
OFF
is not more constant.
L6235
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