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参数资料
| 型号： | L6235PD013TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 5.6 A, PDSO36 |
| 封装： | POWER, SOP-36 |
| 文件页数： | 11/25页 |
| 文件大小： | 434K |
| 代理商： | L6235PD013TR |
19/25
L6235
OUTPUT CURRENT CAPABILITY AND IC POWER DISSIPATION
In Figure 22 is shown the approximate relation between the output current and the IC power dissipation using
PWM current control.
For a given output current the power dissipated by the IC can be easily evaluated, in order to establish which
package should be used and how large must be the on-board copper dissipating area to guarantee a safe op-
erating junction temperature (125°C maximum).
Figure 22. IC Power Dissipation versus Output Power.
THERMAL MANAGEMENT
In most applications the power dissipation in the IC is the main factor that sets the maximum current that can
be delivered by the device in a safe operating condition. Selecting the appropriate package and heatsinking con-
figuration for the application is required to maintain the IC within the allowed operating temperature range for
the application. Figures 23, 24 and 25 show the Junction-to-Ambient Thermal Resistance values for the
PowerSO36, PowerDIP24 and SO24 packages.
For instance, using a PowerSO package with copper slug soldered on a 1.5mm copper thickness FR4 board
with 6cm2 dissipating footprint (copper thickness of 35
m), the Rth(j-amb) is about 35°C/W. Figure 26 shows
mounting methods for this package. Using a multi-layer board with vias to a ground plane, thermal impedance
can be reduced down to 15°C/W.
Figure 23. PowerSO36 Junction-Ambient thermal resistance versus on-board copper area.
No PWM
f
SW = 30 kHz (slow decay)
Test Condition s:
Supply Voltage = 24 V
0
0.5
1
1.5
2
2.5
3
0
2
4
6
8
10
P
I
OUT
[A]
D [W]
IOUT
I1
I3
I2
IOUT
13
18
23
28
33
38
43
12
3
4
56
7
8
9
10
1 1
1 2
13
W ithout G round La yer
W ith Gr ound La yer
W ith Gr ound La yer + 16 via
Ho le s
sq . c m
C / W
On-Board Copper Area
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相关代理商/技术参数 |
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|---|---|
| L6235Q | 功能描述:马达/运动/点火控制器和驱动器 DMOS 3-Phase DC 5.6A 0.3 Ohm 100kHz RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| L6235QTR | 功能描述:马达/运动/点火控制器和驱动器 DMOS 3-Phase Brushless DC Motor RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| L6236 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| L6237 | 制造商:STMicroelectronics 功能描述:BRUSHLESS DC MOTOR CONTROLLER, 2 A, 64 Pin Plastic QFP |
| L6238 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SENSORLESS SPINDLE MOTOR CONTROLLER |
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