BTS4300SGAXUMA1

D a t a S h e e t , R e v. 1 . 0 , M ar c h 2 00 8 B TS 43 00 S G A Smart High-Side Power Switch A u to m o t i v e P o w e r BTS 4300SGA 1 Overview 3 2 Block Diagram 5 3 3.1 3.2 3.3 Pin Configuration 6 Pin Assignment 6 Pin Definitions and Functions 6 Voltage and Current Definition 7 4 4.1 4.2 4.3 General Product Characteristics 8 Absolute Maximum Ratings 8 Functional Range 9 Thermal Resistance 9 5 5.1 5.2 5.3 5.4 Power Stage 10 Output ON-State Resistance 10 Turn ON / OFF Characteristics 10 Inductive Output Clamp 11 Electrical Characteristics Power Stage 12 6 6.1 6.2 6.3 6.4 6.5 Protection Mechanisms 13 Undervoltage Protection 13 Overvoltage Protection 13 Reverse Polarity Protection 14 Overload Protection 14 Electrical Characteristics Protection Functions 16 7 7.1 7.2 7.2.1 7.2.2 7.3 Diagnostic Mechanism 17 ST Pin 17 ST Signal in Case of Failures 17 Diagnostic in Open Load, Channel OFF 17 ST Signal in case of Over Temperature 19 Electrical Characteristics Diagnostic Functions 20 8 8.1 8.2 Input Pin 21 Input Circuitry 21 Electrical Characteristics 21 9 9.1 Application Information 22 Further Application Information 22 10 Package Outlines 23 11 Revision History 24 Datasheet 2 1.0, 2007-19-12 Smart High-Side Power Switch 1 BTS4300SGA Overview Basic Features • • • • • • • • • • Fit for 12V application One Channel device Very Low Stand-by Current CMOS Compatible Inputs Electrostatic Discharge Protection (ESD) Optimized Electromagnetic Compatibility Logic ground independent from load ground Very low leakage current from OUT to the load in OFF state Green Product (RoHS compliant) AEC Qualified PG-DSO-8-24 Description The BTS4300SGA is a single channel Smart High-Side Power Switch. It is embedded in a PG-DSO-8-24 package, providing protective functions and diagnostics. The power transistor is built by a N-channel power MOSFET with charge pump. The device is monolithically integrated in Smart technology. It is specially designed to drive Relay or LED in the harsh automotive environment. Table 1 Electrical Parameters (short form) Parameter Symbol Value Operating voltage range VSOP VS (AZ) RDS(ON) IL (nom) IL_SCR IS(off) -Vs(REV) 5V .... 34V Over voltage protection Maximum ON State resistance at Tj = 150°C Nominal load current Minimum current limitation Standby current for the whole device with load Maximum reverse battery voltage 41V 600mΩ 0.4A 0.4A 26µA 32V Diagnostic Feature • • Open drain diagnostic output Open load detection in OFF state Type Package Marking BTS4300SGA PG-DSO-8-24 4300SGA Data Sheet 3 Rev. 1.0, 2008-03-18 BTS4300SGA Overview Protection Functions • • • • • • • Short circuit protection Overload protection Current limitation Thermal shutdown with restart Overvoltage protection (including load dump) Loss of ground and loss of battery protection Electrostatic discharge protection (ESD) Application • All types of relays, resistive and capacitive loads Data Sheet 4 Rev. 1.0, 2008-03-18 BTS4300SGA Block Diagram 2 Block Diagram VS voltage sensor internal power supply over temperature driver logic IN gate control & charge pump ESD protection T clamp for inductive load over current switch off OUT open load detection ST GND Figure 1 Data Sheet Block diagram.emf Block diagram for the BTS4300SGA 5 Rev. 1.0, 2008-03-18 BTS4300SGA Pin Configuration 3 Pin Configuration 3.1 Pin Assignment GND 1 8 VS IN 2 7 VS OUT 3 6 VS ST 4 5 VS Figure 2 Pin Configuration 3.2 Pin Definitions and Functions Pin Symbol Function 1 GND Ground; Ground connection 2 IN Input channel; Input signal. Activate the channel in case of logic high level 3 OUT Output; Protected High side power output channel 4 ST Diagnostic feedback; of channel. Open drain. 5, 6, 7, 8 VS Battery voltage; Design the wiring for the simultaneous max. short circuit current and also for low thermal resistance Data Sheet 6 Rev. 1.0, 2008-03-18 BTS4300SGA Pin Configuration 3.3 Voltage and Current Definition Figure 3 shows all terms used in this data sheet, with associated convention for positive values. IS VS VD S VS IIN IN IL OUT VIN VOU T IST ST V ST GND R GND IGN D Voltage and current convention single avec diag.vsd Figure 3 Data Sheet Voltage and current definition 7 Rev. 1.0, 2008-03-18 BTS4300SGA General Product Characteristics 4 General Product Characteristics 4.1 Absolute Maximum Ratings Absolute Maximum Ratings 1) Tj = 25 °C; (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions – Min. Max. – 40 V 0 32 V 0 28 V Voltages 4.1.1 4.1.2 4.1.3 VS Reverse polarity Voltage - VS(REV) Supply voltage for short circuit protection Vbat(SC) Supply voltage RECU = 20mΩ, RCable=16mΩ/m, LCable=1µH/m, l = 0 or 5m 2) see Chapter 6 Input pins 4.1.4 Voltage at INPUT pins 4.1.5 Current through INPUT pins VIN IIN -10 16 V – -5 5 mA – Power stage 4.1.6 Load current | IL | – IL(LIM) A – 4.1.7 Power dissipation (DC), PTOT – 0.8 W 4.1.8 Inductive load switch off energy dissipation, Single pulse EAS – 800 mJ TA=85°C, Tj