MC33486DH

Manufacturer Part NumberMC33486DH
DescriptionIC SWITCH DUAL H-SIDE 20-HSOP
ManufacturerFreescale Semiconductor
MC33486DH datasheet
 


Specifications of MC33486DH

ApplicationsDC Motor Controller, H BridgeNumber Of Outputs1
Current - Output10AVoltage - Supply8 V ~ 28 V
Operating Temperature-40°C ~ 125°CMounting TypeSurface Mount
Package / Case20-HSOPLead Free Status / RoHS StatusContains lead / RoHS non-compliant
Voltage - Load-  
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Freescale Semiconductor, Inc.
MOTOROLA
Semiconductor Technical Data
Advance Information
Dual High Side Switch for H-Bridge
Automotive Applications
This device is a dual high side switch for automotive applications which
incorporates a dual low side switch control feature. This device is designed to
monitor two low side switches for typical DC-motor control in an H-Bridge
configuration. It can be directly interfaced with a microcontroller for control and
diagnostic functions, is PWM capable and has a self-adjusted switching speed for
minimizing electromagnetic emission.
The High Side block incorporates two 15mΩ Rdson N-Channel power Mosfets
with senses and a control circuitry. Each output of this high side block is protected
against short to gnd and load shorts, and has over temperature detection with
hysteresis. It includes a current recopy feature for monitoring the load current. The
control circuitry also has an overvoltage detector which turns off the bridge and
protects the load in case of Vbat exceeding 28V.
The low side control block is able to drive 2 low sides switches in a H-bridge
configuration and protects them in case of short circuit. This, in combination with
the High side protection, fully protects the H-bridge from shorted loads, shorts to
Vbat and shorts to GND.
This device offers a very low quiescent current in standby mode.
•10 Amps Nominal DC Current
•35 Amps Maximum Peak Current
•DC Voltage from -0.3V to 40V
•Operating Voltage from 8 to 28V
•Overvoltage Detection : Switch Off when Vbat Exceed 28V
•High Side and Low Side Overcurrent protection
•Operating Junction Temperature - 40°C to 150°C
•Rdson 15mΩ max at 25C° per Mosfet
•DC to 30kHz PWM Capability
•Standby Mode with Low Standby Current
•Junction to Case Thermal Resistance : 2°C/W
•ESD protection 2kV
•Current Recopy to Monitor the High-Side Current
•Common diagnostic output
5V
5V
High Side Block
St
MCU
IN1
I/O
IN2
WAKE
Cur R
GND
This document contains information on a new product. Specifications and
information herein are subject to change without notice.
For More Information On This Product,
© Motorola, Inc., 2001. All rights reserved.
Simplified Block Diagram and Typical Application
Control
GLS2
GLS1
OUT1
GND
GND
Low Side Block
Go to: www.freescale.com
Order Number: MC33486/D
Rev. 3.3, 06/2001
MC33486
DUAL HIGH SIDE SWITCH
FOR H-BRIDGE AUTOMO-
TIVE APPLICATIONS
SEMICONDUCTOR
TECHNICAL DATA
DH SUFFIX
HSOP20 Package
CASE 979-04
2
2
D
PAK
D
PAK
PIN ASSIGNMENT
Vbat
21
20
Wake
1
Gnd
19
Cur R
2
St
IN1
18
3
IN2
17
4
GLS2
GLS1
OUT1
16
OUT2
5
15
OUT2
OUT1
6
14
OUT2
OUT1
7
13
OUT2
OUT1
8
12
NC
9
NC
11
NC
10
NC
21
Vbat
VBAT
OUT2
M
TM

MC33486DH Summary of contents

  • Page 1

    ... Freescale Semiconductor, Inc. MOTOROLA Semiconductor Technical Data Advance Information Dual High Side Switch for H-Bridge Automotive Applications This device is a dual high side switch for automotive applications which incorporates a dual low side switch control feature. This device is designed to monitor two low side switches for typical DC-motor control in an H-Bridge configuration ...

  • Page 2

    ... MC33486 Description The backside TAB is connected to the power supply of the MC33486DH. In addition to its supply function, the tab contributes to the thermal behaviour of the device by conducting the heat from the switching MOSFET to the printed circuit board. Pins 5, 6,7,8 are the source of the output1 15mOhm High-side MOSFET1 ...

  • Page 3

    ... Freescale Semiconductor, Inc. MAXIMUM RATINGS Parameter Power Supply Voltage : Continuous/ Pulse Out1, Out2 to Vbat voltage : Continuous/ Pulse IN1, IN2, Wake, ST Input DC voltage : Continuous/ Pulse IN1, IN2, Wake Input Current ESD all Pins Human Body Model (note1) Machine Model (note2) Output DC Output Current, 1 Channel ON, Ta=85°C ...

  • Page 4

    ... Freescale Semiconductor, Inc. Description INPUTS CHARACTERISTICS IN1, IN2, Wake Input low levels Input high levels Input Hysteresis Logic Input Current Logic Input Current STATUS CHARACTERISTICS Status Voltage Status Leakage OVERLOAD PROTECTION CHARACTERISTICS High Side Output Current Shutdown High Side Overcurrent Shutdown Delay ...

  • Page 5

    ... Freescale Semiconductor, Inc. Description High Side Positive Slew Rate High Side Negative Slew Rate High Side Turn on Delay Time High Side Turn off Delay Time LOW SPEED MODE SWITCHING CHARACTERISTICS High Side Maximum Output Positive Slew Rate High Side Maximum Output Negative Slew ...

  • Page 6

    ... Freescale Semiconductor, Inc. Introduction These devices are intended for full H-bridge automotive applications. The bridge is partitioned into three blocks, the DHSB and two low side MOSFETS, each block has a dedicated package. The DHSB incorporates two 15m ohm N-channel high side power MOSFETS, high side current sensing , fault protection and low side gate drivers ...

  • Page 7

    ... Freescale Semiconductor, Inc. Overtemperature Protection The DHSB incorporates over-temperature protection. Over- temperature detection occurs when an internal high side is in the on state. When an over-temperature condition occurs, both outputs are affected. Both outputs are turned off to protect the DHSB from damage (Low sides ON). The overtemperature protection circuitry incorporates hysteresis ...

  • Page 8

    ... Freescale Semiconductor, Inc. The use of this model is similar to the electrical Ohm law (voltage = resistance X current), where: . Voltage represents temperature . Current represents power dissipated by the device . Resistance represents thermal resistance. We finally got : Temperature or delta temperature = Power Dissipation times Thermal resistance, that is : ° ° x C/W. ...

  • Page 9

    ... Freescale Semiconductor, Inc. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...