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PROFET

BTS 442 E2

Data Sheet 1 of 14 2010-Jan-26

Smart Highside Power Switch

Features

•

Overload protection

•

Current limitation

•

Short-circuit protection

•

Thermal shutdown

•

Overvoltage protection (including load dump)

•

Fast demagnetization of inductive loads

•

Reverse battery protection

)

•

Undervoltage and overvoltage shutdown with

auto-restart and hysteresis

•

Open drain diagnostic output

•

Open load detection in ON-state

•

CMOS compatible input

•

Loss of ground and loss of V

protection

•

Electrostatic discharge (ESD) protection

•

Green Product (RoHS compliant)

•

AEC qualified

Application

•

µC compatible power switch with diagnostic feedback for 12 V and 24 V DC grounded loads

•

All types of resistive, inductive and capacitve loads

•

Replaces electromechanical relays and discrete circuits

General Description

N channel vertical power FET with charge pump, ground referenced CMOS compatible input and diagnostic

feedback, integrated in Smart SIPMOS



chip on chip technology. Providing embedded protective functions.

+ V

Signal GND

ESD

PROFET



OUT

GND

Logic

Voltage

sensor

Voltage

source

Open load

detection

Short circuit

detection

Charge pump

Level shifter

Temperature

sensor

Rectifier

Limit for

unclamped

ind. loads

Gate

protection

Current

limit

Load GND

Load

Logic

Overvoltage

protection

No external components required, reverse load current limited by connected load.

Additional external diode required for charged inductive loads

Product Summary

Overvoltage protection V

bb(AZ)

63 V

Operating voltage

bb(on)

4.5 ... 42 V

On-state resistance R

mΩ

Load current (ISO) I

L(ISO)

21 A

Current limitation I

L(SCr)

70 A

PG-TO220-5-11 PG-TO263-5-2

Standard

SMD

Summary of content (14 pages)

PAGE 1
PROFET® BTS 442 E2 Smart Highside Power Switch Product Summary Overvoltage protection Operating voltage On-state resistance Load current (ISO) Current limitation Features • Overload protection • Current limitation • Short-circuit protection • Thermal shutdown • Overvoltage protection (including load dump) • Fast demagnetization of inductive loads • Reverse battery protection1) • Undervoltage and overvoltage shutdown with auto-restart and hysteresis • Open drain diagnostic output • Open load detection in
PAGE 2
PROFET® BTS 442 E2 Pin Symbol Function 1 GND Logic ground 2 IN Input, activates the power switch in case of logical high signal 3 Vbb Positive power supply voltage, the tab is shorted to this pin 4 ST Diagnostic feedback, low on failure 5 OUT (Load, L) Output to the load Maximum Ratings at Tj = 25 °C unless otherwise specified Parameter Supply voltage (overvoltage protection see page 3) Load dump protection VLoadDump = UA + Vs, UA = 13.5 V RI= 2 Ω, RL= 1.
PAGE 3
PROFET® BTS 442 E2 Electrical Characteristics Parameter and Conditions Symbol at Tj = 25 °C, Vbb = 12 V unless otherwise specified Values min typ max Unit Load Switching Capabilities and Characteristics On-state resistance (pin 3 to 5) IL = 5 A Tj=25 °C: RON -- 15 18 mΩ 17 28 21 35 -- A -- -- 1 mA ton toff 100 10 --- 350 130 µs dV /dton 0.2 -- 2 V/µs -dV/dtoff 0.4 -- 5 V/µs Vbb(on) Vbb(under) Vbb(u rst) Vbb(ucp) 4.5 2.4 --- ---6.5 42 4.5 4.5 7.
PAGE 4
PROFET® BTS 442 E2 Parameter and Conditions Symbol at Tj = 25 °C, Vbb = 12 V unless otherwise specified Protection Functions8) Initial peak short circuit current limit (pin 3 to 5)9), IL(SCp) ( max 400 µs if VON > VON(SC) ) Tj =-40°C: Tj =25°C: Tj =+150°C: Repetitive short circuit current limit IL(SCr) Tj = Tjt (see timing diagrams, page 10) Short circuit shutdown delay after input pos. slope VON > VON(SC), Tj =-40..
PAGE 5
PROFET® BTS 442 E2 Parameter and Conditions Symbol Values min typ max VIN(T+) 1.5 -- 2.4 V VIN(T-) 1.0 -- -- V -1 0.5 -- -30 V µA at Tj = 25 °C, Vbb = 12 V unless otherwise specified Input and Status Feedback12) Input turn-on threshold voltage Unit Tj =-40..+150°C: Input turn-off threshold voltage Tj =-40..+150°C: Input threshold hysteresis Off state input current (pin 2), VIN = 0.4 V ∆ VIN(T) IIN(off) On state input current (pin 2), VIN = 3.
PAGE 6
PROFET® BTS 442 E2 Truth Table Input- Output Status level level 442 E2 Normal operation Open load L H L H L H H H H L Short circuit to GND Short circuit to Vbb Overtemperature Undervoltage Overvoltage L H L H L H L H L H 13) H L L H H L L L L L L H L H H (L14)) L L H H H H L = "Low" Level H = "High" Level Terms Input circuit (ESD protection) Ibb I IN 2 V 13) 14) IN V ST bb IN IL PROFET 4 I Vbb IN I ST V R 3 OUT ESDZDI1 ZDI2 VON ST 1 I GND GND R I 5 I GND V OUT ZDI1
PAGE 7
PROFET® BTS 442 E2 Status output Overvolt. and reverse batt. protection +5V R ST(ON) GND + V bb V ST R IN R bb Z IN Logic ESDZD V R ST ST PROFET GND ESD-Zener diode: 6.1 V typ., max 5 mA; RST(ON) < 250 Ω at 1.6 mA, ESD zener diodes are not to be used as voltage clamp at DC conditions. Operation in this mode may result in a drift of the zener voltage (increase of up to 1 V). Short Circuit detection OUT R GND Signal GND Rbb = 120 Ω typ., VZ +Rbb*40 mA = 67 V typ.
PAGE 8
PROFET® BTS 442 E2 GND disconnect with GND pull up 3 3 2 IN high 2 Vbb Vbb PROFET PROFET 4 IN OUT 5 4 ST OUT 5 ST GND GND 1 1 V V bb V V IN ST V Inductive Load switch-off energy dissipation Any kind of load. If VGND > VIN - VIN(T+) device stays off Due to VGND >0, no VST = low signal available.
PAGE 9
PROFET® BTS 442 E2 Options Overview all versions: High-side switch, Input protection, ESD protection, load dump and reverse battery protection , protection against loss of ground Type Logic version BTS 442E2 Overtemperature protection Tj >150 °C, latch function15)16) Tj >150 °C, with auto-restart on cooling Short-circuit to GND protection switches off when VON>8.3 V typ.15) (when first turned on after approx. 200 µs) E X X Open load detection in OFF-state with sensing current 30 µA typ.
PAGE 10
PROFET® BTS 442 E2 Timing diagrams Figure 2b: Switching an inductive load Figure 1a: Vbb turn on: IN IN t V bb d(bb IN) td(ST) ST *) V OUT V OUT A ST open drain I L t IL(OL) A t in case of too early VIN=high the device may not turn on (curve A) td(bb IN) approx. 150 µs *) if the time constant of load is too large, open-load-status may occur Figure 2a: Switching a lamp, Figure 3a: Turn on into short circuit, IN IN ST V ST V OUT OUT td(SC) I I L L t t td(SC) approx.
PAGE 11
PROFET® BTS 442 E2 Figure 3b: Turn on into overload, Figure 4a: Overtemperature: Reset if Tj
PAGE 12
PROFET® BTS 442 E2 Figure 6b: Undervoltage restart of charge pump VON [V] Figure 5b: Open load: detection in ON-state, open load occurs in on-state VON(CL) V on IN off t d(ST OL1) ST t d(ST OL2) V V off OUT V V bb(u rst) I normal open L V normal V bb(over) bb(o rst) bb(u cp) bb(under) on t V bb Vbb [V] td(ST OL1) = tbd µs typ., td(ST OL2) = tbd µs typ charge pump starts at Vbb(ucp) =6.5 V typ.
PAGE 13
PROFET® BTS 442 E2 Package and Ordering Code All dimensions in mm PG-TO220-5-11 SMD PG-TO263-5-2 BTS 442 E2 BTS442E2 E3062A 4.4 10 ±0.2 3.7 ±0.3 5 x 0.8 ±0.1 1) 3.9 ±0.4 M A C B 0.05 2.4 0.1 4.7 ±0.5 9.25 ±0.2 9.25 ±0.2 0...0.15 0.25 A 8.5 1) 0...0.15 C 0.5 ±0.1 4 x 1.7 (15) 2.8 ±0.2 8.6 ±0.3 0.05 2.4 1.6 ±0.3 1 ±0.3 1.27 ±0.1 10.2 ±0.3 1) 12.95 17 ±0.3 15.65 ±0.3 0...0.3 1.27 ±0.1 0...0.3 4.4 1.3 ±0.3 8.5 1) 3.7 -0.15 2.7 ±0.3 A 7.55 1) 10 ±0.2 9.9 ±0.2 5 x 0.
PAGE 14
PROFET® BTS 442 E2 Published by Infineon Technologies AG 81726 Munich, Germany © 2010 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics.