BTS3256DAUMA1 datasheet, PDF - EEWORLD Datasheet

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BTS3256DAUMA1: DescriptionPower Switch ICs - Power Distribution HITFET; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size568KB，28 Pages; ManufacturerInfineon; Websitehttp://www.infineon.com/; Environmental Compliance

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Power Switch ICs - Power Distribution HITFET

BTS3256DAUMA1 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	conform to
Parts packaging code	TO-252
package instruction	,
Contacts	4
Reach Compliance Code	not_compliant
ECCN code	EAR99
Factory Lead Time	18 weeks
Built-in protection	TRANSIENT; OVER CURRENT; OVER VOLTAGE; THERMAL
Interface integrated circuit type	BUFFER OR INVERTER BASED PERIPHERAL DRIVER
JESD-30 code	R-PSSO-G5
JESD-609 code	e3
length	6.5 mm
Number of functions	1
Number of terminals	5
Output current flow direction	SINK
Nominal output peak current	55 A
Package body material	PLASTIC/EPOXY
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	2.35 mm
Maximum supply voltage	30 V
Minimum supply voltage	5.5 V
Nominal supply voltage	10 V
surface mount	YES
Terminal surface	Tin (Sn)
Terminal form	GULL WING
Terminal pitch	1.14 mm
Terminal location	SINGLE
Maximum time at peak reflow temperature	NOT SPECIFIED
Disconnect time	110 µs
connection time	60 µs
width	6.22 mm
Base Number Matches	1

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BTS3256D

Smart Low Si de Power Switch

Features

•

Overview

Slew rate control by dedicated pin enabling EMC optimized switching or

PWM operation

Max. switching Frequency 12 kHz

Clear detection of digital fault signal also during fast PWM operation due

to restart delay time

Thermal and overload protection with time controlled auto restart behavior

Time and Power limited active current limitation

Minimum

DS(on)

achieved with 3.3 V or 5 V logic input

Electrostatic discharge protection (ESD)

Very low leakage current

Green Product (RoHS compliant)

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 out

– Over temperature with time and temperature controlled auto restart

– Over load with power and time controlled auto restart

– ESD protection

Potential Applications

•

All types of resistive, inductive and capacitive loads

Suitable for loads with inrush current, such as motors, coils, solenoids or lamps

Suitable for EMC optimized switching in slow operation mode

Suitable for higher speed PWM controlled loads in fast operation mode

Replacement of electromechanical relays, fuses and discrete circuits

Micro controller compatible low side power switch with digital feedback for 12 V loads

Rev. 1.1

2018-01-29

Datasheet

www.infineon.com/HITFET

Smart Low Side Power Switch

BTS3256D

Overview

Description

The BTS3256D 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.

The device is

controlled by a chip in Smart Power Technology.

The BTS3256D is an autorestart single channel low-side power switch in PG-TO-252-5-11 package providing

embedded protective functions. The device is able to switch all kind of resistive, inductive and capacitive

loads.

The ESD protection of the

and IN/Fault pin is referenced to GND.

The BTS3256D is supplied by the

Pin. This Pin should be connected to a reverse protected battery line. The

supply voltage is monitored by the under voltage lock out circuit. The Gate driving unit allows the device to

operate in the lowest ohmic range independent of the input signal level, 3.3 V or 5 V . For slow PWM application

the device offers smooth turn-on and off due to the embedded edge shaping function, to reduce EMC noise.

Furthermore the SRP pin can be used to customize the slew rate of the device in a wide range.

The Device is designed for driving automotive loads like motors,valves, coils or bulbs in continous or PWM

mode.

The over voltage protection is for protection during load-dump or inductive turn off conditions. The power

MOSFET is limiting the Drain-Source voltage to a specified level. This function is available even without any

supply.

The over temperature protection prevents the device from overheating due to overload and/or bad cooling

conditions. In order to reduce the device stress the edge shaping is disabled during thermal shutdown. After

thermal shutdown the device stays off for the specified restart delay time to enable a clear feedback readout

on the microcontroller. After this time the device follows the IN signal state.

At high dynamic overload conditions, such as short circuit, the device will either turn off immediately due to

the implemented over power limitation, or limit the current for a specified time and then switch off for the

restart delay time. Shutdown of the device is triggered if the power dissipation during limitation is above the

over power threshold. The short circuit shutdown is a timed restart function. The device will stay off for the

specified time and afterwards follow the IN signal state. In order to reduce the device stress the edge shaping

is disabled during protective turn off.

Table 1

Basic Electrical Data

SOP

D(AZ)

DS(ON,typ)

D(nom)

D(lim)

Package

PG-TO-252-5-11

5.5 V.... 30 V

40 V

10 mΩ

7.5 A

42 A

Marking

BTS3256D

Operating voltage

Over voltage protection

Maximum ON State resistance at Tj = 150°C

Typical ON State resistance at Tj = 25°C

Nominal load current

Minimum current limitation

Type

BTS3256D

DS(ON,max)

20 mΩ

Datasheet

Rev. 1.1

2018-01-29

Smart Low Side Power Switch

BTS3256D

Table of Contents

2.1

3.1

3.2

4.1

4.2

4.3

5.1

5.1.1

5.2

5.3

6.1

6.2

6.3

6.4

7.1

7.2

7.3

8.1

8.2

8.3

8.4

9.1

9.2

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

BTS3256D Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Voltage and current naming definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Pin Assignment BTS3256D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply and Input Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Supply Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Under Voltage Lock Out / Power On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Electrical Characteristics - Supply and Input Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Power Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output On-state Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Timings and Slopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inductive Output Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics - Power Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control and Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Readout of Fault Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjustable Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics - Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Thermal Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Over Voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics - Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Dimensioning of serial Resistor at IN pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Datasheet

Rev. 1.1

2018-01-29

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