công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

MC33486ADH bảng dữ liệu(PDF) 11 Page - Freescale Semiconductor, Inc

tên linh kiện MC33486ADH
Giải thích chi tiết về linh kiện  Dual High-Side Switch for H-Bridge Applications
Download  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC33486ADH bảng dữ liệu(HTML) 11 Page - Freescale Semiconductor, Inc

Back Button MC33486ADH Datasheet HTML 7Page - Freescale Semiconductor, Inc MC33486ADH Datasheet HTML 8Page - Freescale Semiconductor, Inc MC33486ADH Datasheet HTML 9Page - Freescale Semiconductor, Inc MC33486ADH Datasheet HTML 10Page - Freescale Semiconductor, Inc MC33486ADH Datasheet HTML 11Page - Freescale Semiconductor, Inc MC33486ADH Datasheet HTML 12Page - Freescale Semiconductor, Inc MC33486ADH Datasheet HTML 13Page - Freescale Semiconductor, Inc MC33486ADH Datasheet HTML 14Page - Freescale Semiconductor, Inc MC33486ADH Datasheet HTML 15Page - Freescale Semiconductor, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 30 page
background image
Analog Integrated Circuit Device Data
Freescale Semiconductor
11
33486A
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
damage (low-side MOSFETs ON). The overtemperature
protection circuitry incorporates hysteresis.
Overtemperature fault condition is reported on the status
output.
High-Side Overcurrent Protection
The 33486A incorporates a current shutdown threshold of
35 A typical. When this limit is reached due to an overload
condition or a short to ground, the faulty output is tri-stated.
To clear the fault, the input (INn) line needs to return low, then
on the next high transition the output will be enabled.
This information is reported on the status output.
Low-Side Block
The low-side block has control circuitry for two external
N-channel power MOSFETs. The low-side control circuitry is
PWM capable and protects the low-side MOSFETs in case of
overcurrent (short to VBAT). This information is reported on
the status output.
The low-side gate controls are clamped at 14 V maximum
to protect the gates of the low-side MOSFETs. Figures 13,
page 15, and 14, page 15, depict the characteristics of the
low-side block when a current is sourced from the GLS pin or
sinked from the GLS pin, respectively.
During normal operation, the outputs OUT1 and OUT2 are
driven by the high side. The low-side gate driver will only turn
on when the voltage (same connection as OUT1 or OUT2) of
the internal high sides is less than 2.0 V, which prevents any
cross-conduction in the bridge.
Low-Side Overcurrent Protection
Unlike the high-side overcurrent circuitry, this overcurrent
protection does not measure the current; rather, it measures
the effect of current on the low-side power MOSFETs through
a condition: VGS > 4.3 V and VDS > 1.0 V. When this set of
conditions occurs for 3.0
µs typical (blanking time), both
outputs OUT1 and OUT2 are tri-stated. The full bridge is tri-
stated to prevent the motor running in case of short to VBAT.
Once the fault is removed, the input INn of the OUTn that
experienced the fault must be reset in order to recover normal
mode operation.
The 33486A can be used without the external low-side
MOSFETs only if the overcurrent protection condition is not
reached. If the external low-side power MOSFETs are not
used, a 470 pF capacitor in parallel with a 100 k
Ω resistor
can be connected at the GLSn pin to prevent the activation of
the low-side MOSFET overcurrent protection.
As VGS and VDS are measured in respect to the 33486A
ground terminal, it is essential that the low-side source is
connected to this same ground in order to prevent false
overcurrent detection due to ground shifts.
Thermal Management
The high-side block is assembled into a power surface
mount package. This package offers high thermal
performances and high current capabilities. It offers
10 terminals on each package side and one additional
connection, which is the package heat sink (called terminal
21). The heatsink acts as the device power VBAT connection.
The junction-to-case thermal resistance is 2.0
°C/W
maximum. The junction-to-ambient thermal resistance is
dependant on the mounting technology and if an additional
heat sink is used. One of the most commonly used mounting
technique consists of using the printed circuit board and the
copper lines as heatsink.
Figure 7 is an example of printed circuit board layout. It
has a total of 10 cm2 additional copper on two sides (2.5 cm2
on the top side and 7.5 cm2 on the down side).
Figure 7. Printed Board Layout Example (not to scale)
With the above layout, thermal resistance junction-to-
ambient of 25
°C/W can be achieved. This value is split into:
•Junction to case (RθJC) = 2.0°C/W
•Case to ambient (RθCA) = 23°C/W
Lower value can be reached with the help of larger and
thicker copper metal, higher number of thermal via from top
to bottom side PCB, and the use of additional thermal via
from the circuit board to the module case.
Bottom-side PCB
Top-side PCB
2.0 cm2
8.0 cm2
33486A
External PCB (4 x 4 cm)
Thermal
via from
top to down-
side PCB


Số phần tương tự - MC33486ADH

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Motorola, Inc
MC33486 MOTOROLA-MC33486 Datasheet
392Kb / 9P
   Dual High Side Switch for H-Bridge Automotive Applications
More results

Mô tả tương tự - MC33486ADH

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Motorola, Inc
MC33486 MOTOROLA-MC33486 Datasheet
392Kb / 9P
   Dual High Side Switch for H-Bridge Automotive Applications
logo
STMicroelectronics
L9959 STMICROELECTRONICS-L9959 Datasheet
828Kb / 49P
   Single and dual PMOS high-side H-bridge
October 2015 Rev 2
L9959S STMICROELECTRONICS-L9959S Datasheet
1Mb / 43P
   Single and dual PMOS high-side H-bridge
September 2013 Rev 6
logo
NEC
UPD168001 NEC-UPD168001 Datasheet
138Kb / 20P
   MONOLITHIC 4-CHANNEL H BRIDGE LOW-SIDE SWITCH
logo
STMicroelectronics
L99H02 STMICROELECTRONICS-L99H02 Datasheet
1Mb / 51P
   H-bridge gate driver for automotive applications
February 2021 Rev 6
logo
Infineon Technologies A...
ITS428L2 INFINEON-ITS428L2 Datasheet
238Kb / 13P
   Smart High-Side Power Switch for Industrial Applications
2006-Mar-16
ISP452 INFINEON-ISP452 Datasheet
166Kb / 10P
   Smart Power High-Side-Switch for Industrial Applications
2006-03-01
ITS4142N INFINEON-ITS4142N Datasheet
444Kb / 19P
   Smart High-Side Power Switch for Industrial Applications
2006-03-09
ITS5215L INFINEON-ITS5215L_08 Datasheet
305Kb / 15P
   Smart High-Side Power Switch for Industrial Applications
Rev. 1.1, 2008-10-07
ITS428L2 INFINEON-ITS428L2_08 Datasheet
279Kb / 15P
   Smart High-Side Power Switch for Industrial Applications
Rev. 1.1, 2008-10-10
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com