BTS443PXT Infineon Technologies, BTS443PXT Datasheet

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BTS443PXT

Manufacturer Part Number
BTS443PXT
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of BTS443PXT

Switch Type
High Side
Power Switch Family
BTS443P
Power Switch On Resistance
13mOhm
Output Current
6.2A
Number Of Outputs
Single
Mounting
Surface Mount
Package Type
TO-252
Operating Temperature (min)
-40C
Operating Temperature (max)
150C
Operating Temperature Classification
Automotive
Pin Count
4 +Tab
Power Dissipation
42W
Lead Free Status / RoHS Status
Compliant
Smart Highside Power Switch
Reversave
Features
Diagnostic Function
Application
General Description
N channel vertical power FET with charge pump, current controlled input and diagnostic feedback with load
current sense, integrated in Smart SIPMOS chip on chip technology. Providing embedded protective functions.
Infineon Technologies AG
Reverse battery protection by self turn on of
power MOSFET
Short circuit protection
Current limitation
Overload protection
Thermal shutdown
Overvoltage protection (including load dump)
Loss of ground protection
Loss of V
charged inductive loads)
Very low standby current
Fast demagnetisation of inductive loads
Electrostatic discharge (ESD) protection
Optimized static electromagnetic compatibility (EMC)
Proportional load current sense (with defined fault signal during thermal shutdown)
Power switch with current sense diagnostic feedback for 12V and 24 V DC grounded loads
All types of resistive, capacitive and inductive loads (no PWM with inductive loads)
Replaces electromechanical relays, fuses and discrete circuits
I
IN
2
Logic GND
bb
V
IN
protection (with external diode for
IN
V
IS
ESD
4
IS
Voltage
Voltage
sensor
source
Logic
I
R
IS
IS
Overvoltage
protection
Charge pump
Level shifter
Rectifier
Page 1 of 13
Current
Product Summary
Operating voltage
On-state resistance
Load current (ISO)
Current limitation
Package
TO-252-5-1
limit
Temperature
unclamped
ind. loads
detection
Voltage
Limit for
Output
sensor
protection
PROFET ® Data Sheet BTS 443 P
Gate
R bb
Current
Sense
PROFET
V
R
I
I
L(ISO)
L(SCr)
bb(on)
ON
+ V bb
OUT
3 & Tab
1, 5
5.0 ... 36
I
L
2003-Oct-01
Load GND
Load
16 m
25
65
V
A
A

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BTS443PXT Summary of contents

Page 1

... Voltage sensor 2 IN Logic ESD Logic GND Infineon Technologies AG PROFET ® Data Sheet BTS 443 P Product Summary Operating voltage On-state resistance Load current (ISO) Current limitation Package TO-252-5-1 Current Gate Overvoltage limit protection protection Limit for Charge pump unclamped ind. loads ...

Page 2

... V is set-up without the DUT connected to the generator per ISO 7637-1 and DIN 40839 Load dump Infineon Technologies AG Function Output to the load. The pin 1 and 5 must be shorted with each other especially in high current applications!*) Input, activates the power switch in case of short to ground Positive power supply voltage, the tab is shorted to this pin ...

Page 3

... 2.5 OUT L 3) Thermal resistance R case to heatsink (about 0.5 ... 0.9 K/W with silicone paste) not included! thCH ) 4 Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6cm connection. PCB is vertical without blown air. Infineon Technologies AG Symbol R chip - case : 4) : Symbol T =25 ° =150 °C: ...

Page 4

... Integrated protection functions are designed to prevent IC destruction under fault condition described in the data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not for continuous repetitive operation. ) see also page 12. 8 Infineon Technologies AG Symbol V bb(on) V bIN(u) =0V) ...

Page 5

... Required current capability of input switch Maximum input current for turn-off higher, the sense current is no longer proportional to the load current due to sense current ON saturation not subject to production test, specified by design Infineon Technologies AG k ILIS >4 bIN IL = 20A -40° +25° +150° 5A -40° ...

Page 6

... L = "Low" Level H = "High" Level Terms 3 V bIN PROFET bIS Two or more devices can easily be connected in parallel to increase load current capability. ) Low ohmic short may reduce the output current bb Infineon Technologies AG Input Output Current level level high impedance, potential depends on external circuit I bb ...

Page 7

... L(M) IS Note: For large values of R the voltage V IS almost V . See also overvoltage protection you don't use the current sense output in your application, you can leave it open. Infineon Technologies AG Inductive and overvoltage output clamp clamped Overvoltage protection of logic part V Z,IS R ...

Page 8

... Provide a current path with load current capability by using a diode, a Z-diode varistor < =0). For higher clamp voltages Zb IN currents at IN and IS have to be limited to 250 mA. Version PROFET IS Infineon Technologies AG Version OUT Power Transistor Note that there is no reverse battery protection when using a diode without additional Z-diode V ...

Page 9

... R L · OUT(CL · L The device is not suitable for permanent PWM with inductive loads if active clamping occurs every cycle. Infineon Technologies AG Maximum allowable load inductance for a single switch off j,start = 150° L[mH] 100 E Load i (t) L OUT ...

Page 10

... L Load 1 Load son(IS) The sense signal is not valid during a settling time after turn-on/off and after change of load current. Figure 1b: typical behaviour of sense output IS,fault >= 2.5mA I L(lim) = 20A Infineon Technologies AG Figure 2a: Switching motors and lamps dV/dtoff V OUT t off t I slc(IS soff(IS) Sense current above I IS,fault can occur at very high inrush currents ...

Page 11

... Figure 3a: Short circuit L(SCp) I L(SCr ISfault Figure 4a: Overtemperature Reset if T < IS,fault I IS Auto Restart V OUT T j Infineon Technologies AG Figure 5a: Undervoltage restart of charge pump, overvoltage clamp V 12 OUT 10 8 dynamic, short 6 Undervoltage not below V bIN( bIN(u) t Page Data Sheet BTS 443 ON(CL) ...

Page 12

... Figure 6b: Current sense ratio k ILIS 8200 This range for the current sense ratio refers to all devices. The accuracy of the k means of calibration the value of k single device. Infineon Technologies AG Figure 7a: Output voltage drop versus load current: [V] 0.1 0. 0.0 [ [A] 20 can be raised by ...

Page 13

... Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life- support device or system affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body support and/or maintain and sustain and/or protect human life ...

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