參數(shù)資料
型號： L6226QTR
廠商： STMICROELECTRONICS
元件分類： 運動控制電子
英文描述： BRUSH DC MOTOR CONTROLLER, QCC32
封裝： 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32
文件頁數(shù)： 11/29頁
文件大小： 480K
代理商： L6226QTR
L6226Q
Paralleled operation
Doc ID 14335 Rev 5
19/29
6
Paralleled operation
The outputs of the L6226Q can be paralleled to increase the output current capability or
reduce the power dissipation in the device at a given current level. It must be noted,
however, that the internal wire bond connections from the die to the power or sense pins of
the package must carry current in both of the associated half bridges. When the two halves
of one full bridge (for example OUT1A and OUT2A) are connected in parallel, the peak
current rating is not increased since the total current must still flow through one bond wire on
the power supply or sense pin. In addition the over current detection senses the sum of the
current in the upper devices of each bridge (A or B) so connecting the two halves of one
bridge in parallel does not increase the over current detection threshold.
For most applications the recommended configuration is half bridge 1 of bridge A paralleled
with the half bridge 1 of the bridge B, and the same for the half bridges 2 as shown in
Figure 15. The current in the two devices connected in parallel will share very well since the
RDS(on) of the devices on the same die is well matched.
When connected in this configuration the over current detection circuit, which senses the
current in each bridge (A and B), will sense the current in upper devices connected in
parallel independently and the sense circuit with the lowest threshold will trip first. With the
enables connected in parallel, the first detection of an over current in either upper DMOS
device will turn of both bridges. Assuming that the two DMOS devices share the current
equally, the resulting over current detection threshold will be twice the minimum threshold
set by the resistors RCLA or RCLB in Figure 15. It is recommended to use RCLA = RCLB.
In this configuration the resulting bridge has the following characteristics.
●
Equivalent device: full bridge
●
RDS(on) 0.37 Ω typ. value @ TJ = 25 °C
●
2.8 A max RMS load current
●
5.6 A max OCD threshold
相關(guān)PDF資料
PDF描述
L6226Q BRUSH DC MOTOR CONTROLLER, 2.8 A, QCC32
L6227N STEPPER MOTOR CONTROLLER, 2.8 A, PDIP24
L6228Q STEPPER MOTOR CONTROLLER, 2.8 A, QCC32
L6228QTR STEPPER MOTOR CONTROLLER, QCC32
L6229D BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6227 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER WITH PWM CURRENT CONTROLLER
L6227D 功能描述:馬達/運動/點火控制器和驅(qū)動器 Dual Full Bridge RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
L6227DTR 功能描述:馬達/運動/點火控制器和驅(qū)動器 Dual Full Bridge RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
L6227N 功能描述:馬達/運動/點火控制器和驅(qū)動器 Dual Full Bridge RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
L6227PD 功能描述:馬達/運動/點火控制器和驅(qū)動器 Dual Full Bridge RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
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