BTS5240LXT Infineon Technologies, BTS5240LXT Datasheet

BTS5240LXT

Manufacturer Part Number
BTS5240LXT
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of BTS5240LXT

Switch Type
High Side
Power Switch Family
BTS 5240
Input Voltage
-10 to 16V
Power Switch On Resistance
11mOhm
Output Current
4.1A
Number Of Outputs
Dual
Mounting
Surface Mount
Supply Current
1.6mA
Package Type
DSO
Operating Temperature (min)
-40C
Operating Temperature (max)
150C
Operating Temperature Classification
Automotive
Pin Count
12
Power Dissipation
1.4W
Lead Free Status / Rohs Status
Not Compliant
Product Summary
Operating voltage
On-state resistance
Nominal load current
Current limitation
General Description
Basic Functions
Smart High-Side Power Switch
Two Channels: 2 x 25m
IntelliSense
Diagnostic Function: IntelliSense
Application
Protection Functions
N channel vertical power MOSFET with charge pump, ground referenced CMOS compatible input and
Providing embedded protective functions.
Extern adjustable current limitation.
Very low standby current
CMOS compatible input
Improved electromagnetic compatibility (EMC)
Stable behaviour at low battery voltage
Proportional load current sense ( with defined fault signal during thermal shutdown and overload )
All types of resistive, inductive and capacitive loads
µC compatible high-side power switch with diagnostic feedback for 12 V grounded loads
Due to the adjustable current limitation best suitable for loads with high inrush currents, so as lamps
Replaces electromechanical relays, fuses and discrete circuits
Reverse battery protection with external resistor
Current limitation
Additional open load detection in OFF - state
Suppressed thermal toggling of fault signal
diagnostic feedback, monolithically integrated in Smart SIPMOS
Short circuit protection
Overload protection
Thermal Shutdown
Overvoltage protection with external resistor
Loss of GND and loss of V bb protection
Electrostatic discharge Protection (ESD)
Active channels
High
Low
V
I
I
L(nom)
R
L(SCr)
bb(on)
ON
( Loaddump: 40 V )
one
25
6
4,5...28
Page 1
two parallel
10
40
9,1
13
V
m
A
A
technology.
IN1
IS1
IN2
IS2
CLA
Block Diagram
GND
Vbb
Channel 1
Channel 2
Logic
Package
P-DSO-12 -2
BTS 5240L
2005-06-03
Load 2
Load 1

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BTS5240LXT Summary of contents

Page 1

... Application All types of resistive, inductive and capacitive loads µC compatible high-side power switch with diagnostic feedback for 12 V grounded loads Due to the adjustable current limitation best suitable for loads with high inrush currents lamps Replaces electromechanical relays, fuses and discrete circuits ...

Page 2

Functional diagram GND overvoltage protection internal logic voltage supply IN1 ESD IS1 CLA IN2 IS2 current limit gate control + charge pump clamp for inductive load temperature sensor openload detection current sense Channel 1 control and protection circuit equivalent to ...

Page 3

Pin definition and function Pin Symbol Function 2 IN1 Input 1,2 activates channel1,2 in case of logic high signal 5 IN2 3 IS1 Diagnostic feedback 1 & channel 1,2 On state: advanced current sense with defined signal in ...

Page 4

... LoadDump In = low or high 400 ms 2. 6.8 L Load current (Short - circuit current, see page 7) Operating temperature range Storage temperature range Dynamical temperature rise at switching 6) Power dissipation (DC), one channel active Maximal switchable inductance, single pulse V =12V, T =150°C; bb jstart 0.319 0.679 Electrostatic discharge voltage (Human Body Model) according to ANSI EOS/ESD - S5 ...

Page 5

... Electrical Characteristics Parameter and Conditions -40...+150 ° 9... Thermal Resistance junction - case 1) junction - ambient Load Switching Capabilities and Characteristics On-state resistance (V to OUT ° 150 ° ° Nominal load current T = 85°C, T 150° two channels active, per channel: Nominal load current; ISO Norm = 85 ° ...

Page 6

... Electrical Characteristics Parameter and Conditions -40...+150 ° 9... Load Switching Capabilities and Characteristics 1) Turn-on time to 90 Turn-off time to 10 Slew rate 30 Slew rate off Operating Parameters 2) Operating voltage 3) Overvoltage protection Standby current (see diagram on page 13) = -40...+25 ° 150 ° See timing diagram on page 14. ...

Page 7

... High level Low level Initial short circuit shutdown time T = 25° 13,5 V j,start bb Output clamp (inductive load switch off Thermal overload trip temperature Thermal hysteresis 1 Add > Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as "outside" normal operating range. ...

Page 8

... In case of floating output, the status doesn´t show open load. 2 Fault condition means output voltage exceeds open load detection voltage the case of thermal shutdown the V than the restart of the switch ( see diagram on page 16 ). Not subject to production test, specified by design. 4 not subject to production test, specified by design ...

Page 9

Electrical Characteristics Parameter -40...+150 ° 9... Diagnostic Characteristics Status invalid after negative input slope Status invalid after positive input slope with open load 1) Input Feedback Input resistance (see circuit page 11) ...

Page 10

... Z = high impedance, potential depends on external circuit "High" Level typ., constant voltage independent of external sense resistor. fault Parallel switching of channels is possible by connecting the inputs and outputs parallel. The current sense ouputs have to be connected with a single sense resistor. Terms I bb 6,12 Heat slug ...

Page 11

Input circuit ( ESD protection ), IN1 or IN2 ESD- GND The use of ESD zener diodes as voltage clamp at DC conditions is not recommended. Sense-Status output, IS1 or IS2 ON-State: Normal operation: ...

Page 12

... For inductive load currents up to the limits defined each switch is protected against loss (max. ratings and diagram on page 12) Consider at your PCB layout that in the case of Vbb disconnection with energized inductive load all the load current flows through the GND connection. Inductive load switch-off energy ...

Page 13

... Maximum allowable load inductance for a single switch off (one channel 150° jstart bb 1000 100 [A] L Typ. on-state resistance [V] bb Typ. standby current I bb(off) = 12V high Page 13 BTS 5240L = f low j bb IN1,2 -40 - 100 120 140 160 T [°C] j 2005-06-03 ...

Page 14

... Timing diagrams All channels are symmetric and consequently the diagrams are valid for channel 1 and channel 2. Figure 1a: Switching a resistive load, change of load current in on-condition OUT OUT slc(IS) slc(IS Load 1 Load 1 Load 2 Load son(IS) son(IS) The sense signal is not valid during settling time after turn on or change of load current. tslc(IS) = 300 µ ...

Page 15

... L(SCr ) V V fault fault Heating up may require several milliseconds, depending on external conditions. I L(lim) = 50A typ. increases with decreasing temperature. Figure 3b: Turn on into short circuit, shut down by overtemperature, restart by cooling ( channel 1 and 2 switched parallel ) IN1/2 IN1 lim ) lim ) lim ) lim ) off(SC) off(SC) ...

Page 16

Figure 4a: Overtemperature Reset < The behaviour and shown for a resistor, which refers to curve 1 in figure 1c delay(fault ...

Page 17

... Infineon Technologies Office. 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 ...

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