BTS5242-2L Smart High-Side Power Switch Automotive Power
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Data Sheet, Rev.1.2, 2008
BTS5242-2L
Smart High-Side Power Switch
Automotive Power
Smart High-Side Power Switch BTS5242-2L
Table Contents
5.1.1 5.1.2 5.1.3 5.1.4 Overview Block Diagram Terms Configuration Assignment BTS5242-2L Definitions Functions Electrical Characteristics Maximum Ratings Block Description Electrical Characteristics Power Stages Output On-State Resistance Input Circuit Inductive Output Clamp Electrical Characteristics Thermal Resistance Protection Functions Over Load Protection Reverse Polarity Protection Over Voltage Protection Loss Ground Protection Electrical Characteristics Diagnosis ON-State Diagnosis OFF-State Diagnosis Electrical Characteristics
Package Outlines BTS5242-2L Revision History
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch PROFET
BTS5242-2L
Overview
Very standby current compatible logic pins Improved electromagnetic compatibility (EMC) Stable behavior under voltage Logic ground independent from load ground Secure load turn-off while logic ground disconnected Very leakage current from Green Product (RoHS compliant) Qualified
Basic Features
PG-DSO-12-9
Product Summary BTS5242-2L dual channel high-side power switch PG-DSO-12-9 package providing embedded protective functions. power transistor built N-channel vertical power MOSFET with charge pump. device monolithically integrated Smart SIPMOS technology. Operating voltage Over voltage protection On-State resistance Nominal load current (one channel active) Adjustable current limitation Current limitation repetitive Standby current whole device with load
Vbb(on)
Vbb(AZ) RDS(ON)
IL(nom) IL(LIM) IL(SCr)
Ibb(OFF)
Type BTS5242-2L Data Sheet
Package PG-DSO-12-9
Marking BTS5242-2L Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Overview Protective Functions Reverse battery protection with external resistor Short circuit protection Overload protection Multi-step current limitation Adjustable current limitation Thermal shutdown with restart Over voltage protection with external resistor Loss ground loss protection Electrostatic discharge protection (ESD)
Diagnostic Functions IntelliSense functionality each channel Proportional load current sense signal current source Open load detection ON-state load current sense Open load detection OFF-state voltage source Feedback over temperature current limitation ON-state Suppressed thermal toggling fault signal
Applications compatible high-side power switch with diagnostic feedback grounded loads types resistive, inductive capacitive loads Most suitable loads with high inrush currents, lamps Replaces electromechanical relays, fuses discrete circuits
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Block Diagram
Block Diagram
BTS5242-2L dual channel high-side power switch (two times PG-DSO-12-9 power package providing embedded protective functions. Integrated resistors each input (IN1, IN2, CLA) reduce external components. load current limitation adjusted steps current limit adjust (CLA). IntelliSense pins provide sophisticated diagnostic feedback signal including current sense function, open load state over load alert. power transistor built N-channel vertical power MOSFET with charge pump. inputs ground referenced CMOS compatible. device monolithically integrated Smart SIPMOS technology.
channel
load current sense clamp inductive load
internal power supply logic protection
gate control charge pump open load detection temperature sensor
multi step load current limitation OUT1
channel
control protection circuit equivalent channel OUT2
Figure
Block Diagram
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Block Diagram
Terms
Following figure shows terms used this data sheet.
IIN1 VIN1 VIN2 VIS1 VIS2 IIN2 IIS1 IIS2 ICLA
VOUT1 OUT2 OUT2 IGND
Terms2ch.emf
OUT1
BTS5242-2L
VCLA
Figure
Terms
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Configuration
Configuration
Assignment BTS5242-2L
(top view)
heat slug (VBB)
OUT1 OUT1 OUT2 OUT2
Figure
Configuration PG-DSO-12-9
10,11 6,12, heat slug
Definitions Functions
Symbol OUT1 OUT2
Function Input signal channel Input signal channel Diagnosis output signal channel Diagnosis output signal channel Current limit adjust input channel Protected high-side power output channel Protected high-side power output channel Ground connection Positive power supply logic supply well output power supply
output pins each channel have connected
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Electrical Characteristics
Electrical Characteristics
Maximum Ratings
(unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values Unit Test Conditions min. max.
Power Supply
4.1.1 4.1.2 4.1.3
Supply voltage Current through ground
-150
IGND Supply voltage full short circuit protection (single Vbb(SC)
pulse) -40°C 150°C)
4.1.4 4.1.5
Voltage power transistor Supply Voltage Load Dump protection
Vbb(LD)
2.25
Power Stages
4.1.6 4.1.7
Load current Maximum energy dissipation single pulse
IL(LIM)
Tj(0) 150°C IL(0)
4.1.8
Power dissipation (DC)
Ptot
Logic Pins
4.1.9
Voltage input
VCLA ICLA
Tstg
-2.0 -8.0 -2.0 -8.0
4.1.10 Current through input 4.1.11 Voltage current limit adjust 4.1.12 Current through current limit adjust 4.1.13 Current through sense
Temperatures
4.1.14 Junction temperature 4.1.15 Dynamic temperature increase while switching 4.1.16 Storage temperature
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Electrical Characteristics
(unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values Unit Test Conditions min. max. according EIA/JESD 22-A 114B
Susceptibility
4.1.17 susceptibility
VESD
describe complete circuit impedance including line, contact generator impedances Load Dump specified 7637, internal resistance Load Dump pulse generator Current limitation protection feature. Operation current limitation considered "outside" normal operating range. Protection features designed continuous repetitive operation. Pulse shape represents inductive switch off: IL(t) IL(0) tpeak); tpeak. Please Figure Device mounted epoxy, FR4) with copper heatsinking area (one layer, thick) connection. vertical without blown air.
Note: Stresses above ones listed here cause permanent damage device. Exposure absolute maximum rating conditions extended periods affect device reliability. Note: Integrated protection functions designed prevent destruction under fault conditions described data sheet. Fault conditions considered "outside" normal operating range. Protection functions designed continuous repetitive operation.
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Block Description Electrical Characteristics
Block Description Electrical Characteristics
Power Stages
power stages built N-channel vertical power MOSFET (DMOS) with charge pump.
5.1.1
Output On-State Resistance
on-state resistance RDS(ON) depends supply voltage well junction temperature Figure shows that dependencies typical on-state resistance. behavior reverse polarity mode described Section 6.2.
13.5
RDS(ON)
25°C
RDS(ON)
Figure
Typical On-State Resistance
5.1.2
Input Circuit
Figure shows input circuit BTS5242-2L. There integrated input resistor that makes external components obsolete. current sink ground ensures that device switches case open input pin. zener diode protects input circuit against pulses.
Input.emf
Figure
Input Circuit (IN1 IN2)
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Block Description Electrical Characteristics high signal input causes power DMOS switch with dedicated slope, which optimized terms emission.
tOFF
VOUT
dtOFF
/dtON
SwitchOn.emf
Figure
Switching Load (resistive)
5.1.3
Inductive Output Clamp
When switching inductive loads with high-side switches, voltage VOUT drops below ground potential, because inductance intends continue driving current.
OutputClamp .emf
Figure
Output Clamp (OUT1 OUT2)
prevent destruction device, there voltage clamp mechanism implemented that keeps that negative output voltage certain level (VOUT(CL)). Figure Figure details. Nevertheless, maximum allowed load inductance limited.
OUT(CL)
InductiveLoad.emf
Figure
Switching Inductance
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Block Description Electrical Characteristics Maximum Load Inductance While demagnetization inductive loads, energy dissipated BTS5242-2L. This energy calculated with following equation:
OUT(CL) OUT(CL) OUT(CL)
Following equation simplifies under assumption
OUT(CL)
energy, which converted into heat, limited thermal design component. Figure maximum allowed energy dissipation.
1000
(mJ)
Figure
Maximum energy dissipation single pulse, Tj,Start 150°C
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Block Description Electrical Characteristics
5.1.4
Electrical Characteristics
+150 (unless otherwise specified) typical values: 13.5
Pos. Parameter General 5.1.1 Operating voltage
Symbol
Limit Values min. typ. max.
Unit Test Conditions
VCLA VOUT VOUT(OL) 25°C 105°C 150°C
5.1.2 Operating current channel channels 5.1.3 Standby current whole device with load
IGND
Ibb(OFF)
Output characteristics 5.1.4 On-State resistance channel
RDS(ON)
5.1.5 Output voltage drop limitation small load currents
VDS(NL)
IL(nom) 5.1.6 Nominal load current channel channel active channels active IL(ISO) load current channel channel active channels active
-0.3
5.1.7 Output clamp 5.1.8 Output leakage current channel Input characteristics 5.1.9 Input resistance 5.1.10 L-input level 5.1.11 H-input level 5.1.12 Hysteresis 5.1.13 L-input current 5.1.14 H-input current Timings 5.1.15 Turn-on time 5.1.16 Turn-off time Data Sheet
VOUT(CL) IL(OFF) VIN(L) VIN(H)
IIN(L) IIN(H) tOFF
13.5 13.5
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Block Description Electrical Characteristics
+150 (unless otherwise specified) typical values: 13.5
Pos. Parameter 5.1.17 slew rate 5.1.18 slew rate
Symbol
dtON -dV/ dtOFF
Limit Values min. typ. 0.25 0.25 max. 0.45 0.45
Unit Test Conditions V/µs 13.5 V/µs 13.5
Device mounted epoxy, FR4) with copper heatsinking area (one layer, thick) connection. vertical without blown air. subject production test, parameters calculated from RDS(ON) subject production test, specified design
Note: Characteristics show deviation parameter given supply voltage junction temperature. Typical values show typical parameters expected from manufacturing.
Pos. 5.2.1 5.2.2
Thermal Resistance
Parameter Junction Case
Symbol Min.
Limit Values Typ. Max.
Unit
Conditions
Junction Ambient channel channels
RthJC RthJA
subject production test, specified design. EIA/JESD 52_2, FR4,
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Protection Functions
Protection Functions
device provides embedded protective functions. Integrated protection functions designed prevent destruction under fault conditions described data sheet. Fault conditions considered "outside" normal operating range. Protection functions neither designed continuous repetitive operation.
Over Load Protection
load current IOUT limited device itself case over load short circuit ground. There steps current limitation. They selected pin, additionally selected automatically depending voltage across power DMOS. Please note that voltage VDS. Please refer following figure details.
CurrentLimitation.emf
Figure
Current Limitation (minimum values)
Current limitation realized increasing resistance device which leads rapid temperature rise inside. temperature sensor each channel causes overheated channel switch prevent destruction. After cooling down with thermal hysteresis, channel switches again. Please refer Figure details.
IL(LIM) IL(SCr)
VIS(fault)
OverLoad .emf
Figure
Shut Down Over Temperature
circuit designed equal input pin. Please refer Figure details. Please note that thresholds high state differ between CLA.
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Protection Functions
Reverse Polarity Protection
case reverse polarity, intrinsic body diode causes power dissipation. following formula estimation total power dissipation Pdiss(rev) reverse polarity mode.
Pdiss(rev)
channels
DS(rev)
reverse current through power transistors limited connected loads. reverse current through ground connection limited either resistor pair resistor diode. current through sense pins limited (please refer maximum ratings Page temperature protection active during reverse polarity.
Over Voltage Protection
addition output clamp inductive loads described Section 5.1.3, there clamp mechanism over voltage protection. current through ground connection limited e.g. resistor. shown Figure case supply voltages greater than Vbb(AZ), power transistor opens voltage across logic part clamped. result, ground potential rises Vbb(AZ). zener diodes, potential IN1, rises almost that potential, depending impedance connected circuitry.
ZDAZ
RCLA ZDESD
logic
RGND
OverVoltage .emf
Figure
Over Voltage Protection
Loss Ground Protection
case complete loss device ground connections, connected load ground, BTS5242-2L securely changes stays state.
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Protection Functions
Electrical Characteristics
+150 (unless otherwise specified) typical values: 13.5
Pos. Parameter Over Load Protection 6.5.1 Load current limitation
Symbol
Limit Values min. typ. max.
Unit Test Conditions
IL(LIM)
Tj(SC) TjStart
6.5.2 Repetitive short circuit current limitation
IL(SCr)
6.5.3 Initial short circuit shut down time
tOFF(SC)
6.5.4 Thermal shut down temperature 6.5.5 Thermal hysteresis Reverse Battery 6.5.6 Drain-Source diode voltage (VOUT Vbb) Over Voltage 6.5.7 Over voltage protection Loss 6.5.8 Output current while disconnected
Tj(SC)
=150 IGND
-VDS(rev)
Vbb(AZ) IL(GND)
Current Limit Adjust (CLA) 6.5.9 Input resistance 6.5.10 L-input level 6.5.11 H-input level 6.5.12 L-input current 6.5.13 H-input current
subject production test, specified design Pins connected
RCLA VCLA(L) VCLA(H) ICLA(L) ICLA(H)
-0.3
VCLA VCLA
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Diagnosis
Diagnosis
diagnosis purpose, BTS5242-2L provides IntelliSense signal pins IS2. This means detail, current sense signal IIS, proportional signal load current (ratio kILIS IIS), provided long failure mode (see Table occurs. case failure mode, voltage VIS(fault) diagnosis pin.
Rlim RIN1
IIS1 gate control OUT1 over temperature over load
channel Rlim RIS1 RIS2 channel RIN2
open load IS(fault) VOUT(OL)
gate control IIS2
diagnosis
OUT2 load
Sense.emf
Figure Table
Block Diagram: Diagnosis Truth Table Input Level Output Level
Operation Mode Normal Operation (OFF) Short Circuit Over Temperature Short Circuit Open Load Normal Operation (ON) Current Limitation Short Circuit Over Temperature Short Circuit Open Load
Diagnostic Output
VIS(fault)
VOUT(OL) VOUT(OL)
~Vbb
VIS(fault)
kILIS VIS(fault) VIS(fault) VIS(fault) kILIS
~GND
~Vbb
Level, High Level, high impedance, potential depends external circuit
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Diagnosis
ON-State Diagnosis
standard diagnosis signal current sense signal proportional load current. accuracy ratio (kILIS IIS) depends temperature. Please refer Figure details. Usually resistor connected current sense pin. recommended sense resistors typical value
7500 7000 6500 6000 kILIS 5500 5000 4500 4000
Figure
Current sense ratio kILIS1)
Details about timings between diagnosis signal output voltage VOUT load current ONstate found Figure
normal operation over load (current limitation)
tsIS(ON)
tsIS(LC)
tsIS(LC) VIS(fault)
SwitchOn .emf
Figure
Timing Diagnosis Signal ON-state
case over-current well over-temperature, voltage VIS(fault) diagnosis pins long according input high. This means, even when device keeps switching over-load condition, failure signal constantly available. Please refer Figure details.
curves show behavior based characterization data. marked points guaranteed this Data Sheet Section (Position 7.3.7).
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Diagnosis
over load (current limitation thermal toggling)
normal operation Tj(SC)
tsIS(LC) IS(fault)
thIS(OTR)
OverTemp .emf
Figure
Timing Diagnosis Signal Over Load Condition
OFF-State Diagnosis
Details about timings between diagnosis signal output voltage VOUT load current OFFstate found Figure
Open Load, pull-up resistor active td(fault) VIS(fault)
pull-up resistor inactive ts(fault)
SwitchOff.emf
Figure
Timing Diagnosis Signal OFF-state
open load diagnosis off-state external output pull-up resistor (ROL) recommended. calculation pull-up resistor, leakage currents open load threshold voltage VOUT(OL) taken into account. Depending application, additional pull down resistor output might necessary.
bb(min) OUT(OL,max) leakage
Ileakage defines leakage current complete system including IL(OL) external leakages e.g. humidity. Vbb(min) minimum supply voltage which open load diagnosis off-state must ensured.
reduce stand-by current system, open load resistor switch (SOL) recommended. stand-by current BTS5242-2L minimized, when both input pins (IN1 IN2) level left open VOUT VOUT(OL). case open load state (VOUT VOUT(OL) fault voltage VIS(fault) drives current through sense resistor, which causes increase supply current. reduce stand-by current minimum, open load condition needs suppressed. resistors Rlim recommended limit current through sense pins case reverse polarity over voltage.
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Diagnosis
Electrical Characteristics
+150 (unless otherwise specified) typical values: 13.5
Pos. Parameter Open Load state 7.3.1 Open load detection threshold voltage 7.3.2 Leakage current into 7.3.3 Sense signal case open load
Symbol
Limit Values min. typ. max.
Unit Test Conditions
VOUT(OL) -IL(OL) VIS(fault)
VOUT VOUT VOUT(OL) VOUT VOUT(OL) VOUT VOUT(OL) VOUT VOUT(OL)
7.3.4 Sense signal current limitation
IIS(LIM)
7.3.5 Sense signal invalid after negative input slope td(fault) 7.3.6 Fault signal settling time
ts(fault)
Load Current Sense 7.3.7 Current sense ratio
kILIS
4450 5800 6960 4750 5400 6050 4900 5350 5800
VIS(LIM) IIS(LH) tsIS(ON) tsIS(LC) thIS(OTR)
7.3.8 Current sense voltage limitation 7.3.9 Current sense leakage/offset current 7.3.10 Current sense settling time static ±10% after positive input slope 7.3.11 Current sense settling time static ±10% after change load current 7.3.12 Fault signal hold time after thermal restart
subject production test, specified design
Data Sheet
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Package Outlines BTS5242-2L
Package Outlines BTS5242-2L
2.35 ±0.1 (1.55)
-0.035
+0.1
0.25 +0.075
MAX.
PG-DSO-12-9 (Plastic Dual Small Outline
±0.05
±0.1
±0.1
+0.13 ±0.1
Seating Plane 0.25
±0.15 (0.2) (4.4) 10.3 ±0.3 0.25
±0.1 (1.8)
-0.05 Depth
±0.1 (Heatslug)
Does include Stand Stand
plastic metal protrusion 0.15 max. side
Index Marking; Polish finish package corners max. 0.25
Figure
PG-DSO-12-9
Green Product (RoHS compliant) meet world-wide customer requirements environmentally friendly products compliant with government regulations device available green product. Green products RoHS-Compliant (i.e Pb-free finish leads suitable Pb-free soldering according IPC/JEDEC J-STD-020).
further information alternative packages, please visit website:
Dimensions
Data Sheet
±0.1
Rev.1.2, 2008-09-01
Smart High-Side Power Switch BTS5242-2L
Revision History
Revision Rev.1.1
Revision History
Date 09-01-2008 06-29-2007 Changes Modification Figure pages: added Infineon logo Creation green data sheet. First page: Adding green logo qualified Adding bullet qualified RoHS compliant features Package page Modification package green. page table max. ratings: 4.1.7 parameter changed from added test conditions note added figure page changed figure page 5.1.2 added Test condition 5.1.7 parameter changed from -12V -17V page paragraph: Depending application, additional pull down resistor output might necessary.
Rev.1.0
08-10-2004
initial version
Data Sheet
Rev.1.2, 2008-09-01
Edition 2008-09-01 Published Infineon Technologies 81726 Munich, Germany 9/1/08 Infineon Technologies Rights Reserved. Legal Disclaimer information given this document shall event regarded guarantee conditions characteristics. With respect examples hints given herein, typical values stated herein and/or information regarding application device, Infineon Technologies hereby disclaims warranties liabilities kind, including without limitation, warranties non-infringement intellectual property rights third party. Information further information technology, delivery terms conditions prices, please contact nearest Infineon Technologies Office (www.infineon.com). Warnings technical requirements, components contain dangerous substances. information types question, please contact nearest Infineon Technologies Office. Infineon Technologies components used life-support devices systems only with express written approval Infineon Technologies, failure such components reasonably expected cause failure that life-support device system affect safety effectiveness that device system. Life support devices systems intended implanted human body support and/or maintain sustain and/or protect human life. they fail, reasonable assume that health user other persons endangered.
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