BTS3256D Infineon Technologies, BTS3256D Datasheet
BTS3256D
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BTS3256D Summary of contents
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™ Smart Low Side Power Switch smart power single channel low side switch with restart and variable slew rate ...
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Table of Contents Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... Smart Low Side Power Switch BTS3256D 1 Overview The BTS 3256D is a single channel low-side power switch in PG-TO-252-5-11 package providing embedded protective functions. This HITFET™ is designed for automotive and industrial applications with outstanding protection and control features. The power transistor is a N-channel vertical power MOSFET. ...
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Digital Diagnostic Features • Over temperature • Over load • Short circuit • Clear detection due to a restart delay time Protection Functions • Enhanced short circuit protection with time and power limited active current limitation • Under voltage lock ...
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... BTS 3256D Block Diagram Slew rate SRP control Gate Driving IN / Fault Unit ESD protection Figure 1 Block Diagram for the BTS3256D 2.1 Voltage and current naming definition Following figure shows all the terms used in this datasheet, with associated convention for positive values SRP V ...
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Pin Configuration 3.1 Pin Assignment Drain Figure 3 Pin Configuration 3.2 Pin Definitions and Functions Pin Symbol Function V 1 Supply Voltage; S Connected to Battery Voltage with Reverse protection Diode and Filter against EMC 2 IN Control Input ...
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General Product Characteristics 4.1 Absolute Maximum Ratings 1) Absolute Maximum Ratings +150 C j All voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Voltages 4.1.1 Supply voltage ...
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Functional Range Pos. Parameter 4.2.1 Supply Voltage 4.2.2 Supply current in on Note: Within the functional range the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the related electrical ...
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K/W 100 0.5 0.2 10 0.1 0.05 0.02 1 0.01 0 Figure 4 Typical transient thermal impedance Pulse D = tp/T, T thJA p Device drain ...
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Supply and Input Stage 5.1 Supply Circuit The Supply pin V is protected against ESD pulses as shown in S Due to an internal voltage regulator the device can be supplied from a reverse polarity protected battery line. 5.5V ...
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IN/Fault 20µA : 100µA GND Figure 7 Input Circuit Datasheet 1.0mA : 3.0mA 11 Smart Low Side Power Switch HITFET - BTS 3256D Supply and Input Stage input.emf Rev. 1.0, 2009-05-05 ...
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Electrical Characteristics - Supply and Input Stages 5 - +150 All voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter ...
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Power Stage The power stage is built by a N-channel vertical power MOSFET (DMOS). 6.1 Output On-state Resistance The on-state resistance depends on the junction temperature T on-state resistance R . DS(on ...
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Output Timings and Slopes A high signal on the input pin causes the power MOSFET to switch on with a dedicated slope which is optimized for low EMC emission. Figure 10 IN High Low ond ...
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IN High Low I D Von Figure 12 Switching off an inductive Load While demagnetization of inductive loads, energy has to be dissipated in the BTS 3256D. This energy can be calculated with following ...
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Figure 13 Maximum allowed inductance values for single switch off (EAS 150 ° j,start Datasheet Max =30V ...
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Electrical Characteristics - Power Stage 5 - +150 All voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Power Supply ...
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5 - +150 All voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter 6.4.10 Turn-off time 6.4.11 Slew rate on 6.4.12 ...
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5 - +150 All voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter 6.4.18 Slew rate on 6.4.19 Slew rate off ...
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... Control and Diagnosis The BTS3256D provides digital fault feedback on the IN pin without the need of an ADC. Additonally the device features an adjustable slew rate via the SRP pin. 7.1 Readout of Fault Information The BTS 3256D provides digital status information via an increased current on the IN / Fault pin. ...
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Electrical Characteristics - Diagnostic 5 - +150 All voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Slew rate control ...
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Protection Functions The device provides embedded protection functions against over temperature, over load and short circuit. Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as ...
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... Short Circuit Protection The condition short circuit is an overload condition of the device short circuit condition, the resulting function of the short circuit resistance. The BTS3256D incorporates 2 shut down strategies for maximum robustness in the presence of short circuits: - immediate shut down in the case of low ohmic shorts by power detection exceeding P ...
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Inrush Overload V IN high low lim t lim I Dnom INfault I INnom high low Figure 18 Short Circuit during On State, Typical Behavior for Ohmic Loads The case when ...
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Electrical Characteristics - Protection 5 - +150 All voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Pos. Parameter Thermal Protection 8.4.1 ...
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Application Information Note: The following information is given as a hint for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device. 9.1 ...
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< µC(DI) HIGH,max IN * IN-Fault,min with µC(DI) referring to the maximum logic low voltage of the µC input stage L,max The maximum current is either defined by the BTS 3256D or the ...
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Package Outlines 6.5 5.4 0.15 max per side 4.56 All metal surfaces tin plated, except area of cut. Figure 21 PG-TO-252-5-11 (Plastic Green Thin Outline Package) Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly ...
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Revision History Version Date Changes Rev. 1.0 2009-05-05 released Datasheet Datasheet Smart Low Side Power Switch HITFET - BTS 3256D 29 Revision History Rev. 1.0, 2009-05-05 ...
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... 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. 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 ...