BTS4300SGA

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 2 3 3.1 3.2 3.3 4 4.1 4.2 4.3 5 5.1 5.2 5.3 5.4 6 6.1 6.2 6.3 6.4 6.5 7 7.1 7.2 7.2.1 7.2.2 7.3 8 8.1 8.2 9 9.1 10 11 Overview 3 Block Diagram 5 Pin Configuration 6 Pin Assignment 6 Pin Definitions and Functions 6 Voltage and Current Definition 7 General Product Characteristics 8 Absolute Maximum Ratings 8 Functional Range 9 Thermal Resistance 9 Power Stage 10 Output ON-State Resistance 10 Turn ON / OFF Characteristics 10 Inductive Output Clamp 11 Electrical Characteristics Power Stage 12 Protection Mechanisms 13 Undervoltage Protection 13 Overvoltage Protection 13 Reverse Polarity Protection 14 Overload Protection 14 Electrical Characteristics Protection Functions 16 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 Input Pin 21 Input Circuitry 21 Electrical Characteristics 21 Application Information 22 Further Application Information 22 Package Outlines 23 Revision History 24 Datasheet 2 1.0, 2007-19-12 Smart High-Side Power Switch BTS4300SGA 1 • • • • • • • • • • Overview 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 Basic Features 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 Parameter Electrical Parameters (short form) Symbol Value 5V .... 34V 41V 600mΩ 0.4A 0.4A 26µA 32V Operating voltage range 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 Diagnostic Feature • • Open drain diagnostic output Open load detection in OFF state VSOP VS (AZ) RDS(ON) IL (nom) IL_SCR IS(off) -Vs(REV) Type BTS4300SGA Data Sheet Package PG-DSO-8-24 3 Marking 4300SGA 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 internal power supply voltage sensor over temperature driver logic ESD protection ST gate control & charge pump T clamp for inductive load over current switch off OUT open load detection IN GND Block diagram.emf Figure 1 Block diagram for the BTS4300SGA Data Sheet 5 Rev. 1.0, 2008-03-18 BTS4300SGA Pin Configuration 3 3.1 Pin Configuration Pin Assignment GND IN OUT ST 1 2 3 4 8 7 6 5 VS VS VS VS Figure 2 Pin Configuration 3.2 Pin 1 2 3 4 5, 6, 7, 8 Pin Definitions and Functions Symbol GND IN OUT Function Ground; Ground connection Input channel; Input signal. Activate the channel in case of logic high level Output; Protected High side power output channel Diagnostic feedback; of channel. Open drain. Battery voltage; Design the wiring for the simultaneous max. short circuit current and also for low thermal resistance ST VS 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. VS IIN VIN VS IN IS VD S OUT IL VOU T IST V ST ST GND R GND IGN D Voltage and current convention single avec diag.vsd Figure 3 Voltage and current definition Data Sheet 7 Rev. 1.0, 2008-03-18 BTS4300SGA General Product Characteristics 4 4.1 General Product Characteristics Absolute Maximum Ratings Absolute Maximum Ratings 1) Tj = 25 °C; (unless otherwise specified) Pos. Voltages 4.1.1 4.1.2 4.1.3 Parameter Symbol Limit Values Min. Max. 40 32 28 V V V – Unit Conditions VS Reverse polarity Voltage - VS(REV) Supply voltage for short circuit protection Vbat(SC) Supply voltage – 0 0 RECU = 20mΩ, RCable=16mΩ/m, LCable=1µH/m, l = 0 or 5m 2) Input pins 4.1.4 4.1.5 4.1.6 4.1.7 4.1.8 Voltage at INPUT pins Current through INPUT pins Load current Power dissipation (DC), Inductive load switch off energy dissipation, Single pulse see Chapter 6 VIN IIN | IL | -10 -5 – – – 16 5 IL(LIM) 0.8 800 V mA A W mJ – – – Power stage PTOT EAS TA=85°C, Tj