Datasheet

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Data Sheet 1 V1.0, 2007-05-25

Smart High-Side Power Switch

BSP452

•

High-side switch

•

Short-circuit protection

•

Input protection

•

Overtemperature protection with hysteresis

•

Overload protection

•

Overvoltage protection

•

Switching inductive load

•

Clamp of negative output voltage with inductive loads

•

Undervoltage shutdown

•

Maximum current internally limited

•

Electrostatic discharge (ESD) protection

•

Reverse battery protection

)

Package: SOT 223

Type

Ordering code

BSP 452

Q67000-S271

Application

•

C compatible power switch for 12 V DC grounded loads

•

All types of resistive, inductive and capacitive loads

•

Replaces electromechanical relays and discrete circuits

General Description

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

integrated in Smart SIPMOS



technology. Fully protected by embedded protection functions.

Blockdiagramm:

+ V

Signal GND

ESD

miniPROFET

OUT

GND

Logic

Voltage

sensor

Voltage

source

Charge pump

Level shifter

Temperature

sensor

Rectifier

Limit for

unclamped

ind. loads

Gate

protection

Current

limit

Load GND

Load

Logic

Overvoltage

protection

ESD-

Diode

)

With resistor R

GND

=150 Ω in GND connection, resistor in series with IN connections reverse load current

limited by connected load.

SOT-223

PG-SOT-223

• AEC qualified

• Green product (RoHS compliant)

Summary of content (10 pages)

PAGE 1
Smart High-Side Power Switch BSP452 • High-side switch • Short-circuit protection • Input protection • Overtemperature protection with hysteresis • Overload protection • Overvoltage protection • Switching inductive load • Clamp of negative output voltage with inductive loads • Undervoltage shutdown • Maximum current internally limited • Electrostatic discharge (ESD) protection 1 • Reverse battery protection ) • AEC qualified SOT 223 •Package: Green product (RoHS compliant) Type Ordering code BSP 452 Q67
PAGE 2
Smart High-Side Power Switch BSP452 Pin Symbol Function 1 OUT O Output to the load 2 GND - Logic ground 3 IN I Input, activates the power switch in case of logical high signal 4 Vbb + Positive power supply voltage Maximum Ratings at Tj = 25 °C unless otherwise specified Parameter Supply voltage Load current self-limited 2) Maximum input voltage Maximum input current Inductive load switch-off energy dissipation, IL = 0.
PAGE 3
Smart High-Side Power Switch BSP452 Electrical Characteristics Parameter and Conditions Symbol Values typ max --- 0.16 -- 0.2 0.4 Ω 0.7 -- -- A ton toff --- 60 60 100 150 µs dV /dton -- 2 4 V/µs -dV/dtoff -- 2 4 V/µs VIN VIN(T+) -3.0 -- --- Vbb 3.5 V V VIN(T-) 1.5 -- -- V ∆VIN(T) IIN(off) -10 0.5 -- -60 V µA IIN(on) 10 -- 100 µA RIN 1.5 2.8 3.5 kΩ at Tj = 25 °C, Vbb = 13.
PAGE 4
Smart High-Side Power Switch BSP452 Parameter and Conditions Symbol at Tj = 25 °C, Vbb = 13.5V unless otherwise specified min Operating Parameters Operating voltage8) Undervoltage shutdown Undervoltage restart Tj =-40...+150°C Tj =-40...+150°C Tj =-40...+25°C Tj =+150°C Undervoltage restart of charge pumpe see diagram page 77 Undervoltage hysteresis ∆Vbb(under) = Vbb(u rst) - Vbb(under) Overvoltage shutdown Tj =-40...+150°C Overvoltage restart Tj =-40...+150°C Overvoltage hysteresis Tj =-40...
PAGE 5
Smart High-Side Power Switch BSP452 Max. allowable power dissipation Ptot = f (TA,TSP) Current limit characteristic IL(SC) = f (Von); (Von see testcircuit) Ptot [W] IL(SC) [A] 18 2 16 1.8 1.6 14 1.4 12 TSP 150°C 1.2 25°C 1 -40°C 10 8 0.8 6 0.6 4 0.4 TA 2 0.2 0 0 0 25 50 75 100 125 150 0 2 4 6 8 10 12 TA, TSP[°C] 14 Von [V] On state resistance (Vbb-pin to OUT-pin) RON = f (Tj); Vbb = 13.5 V; IL = 0.5 A Typ.
PAGE 6
Smart High-Side Power Switch BSP452 Typ. operating current IGND = f (Tj); Vbb = 13,5 V; VIN = high Typ. overload current IL(lim) = f (t); Vbb = 13,5 V, no heatsink, Param.: Tjstart IGND [mA] IL(lim) [A] 0.8 1.4 0.7 1.2 0.6 1 0.5 0.8 +150°C 0.4 +25°C -40°C 0.6 0.3 0.4 0.2 0.2 0.1 0 0 -50 -25 0 25 50 75 100 125 150 -50 0 50 100 150 200 250 300 350 400 Tj [°C] t [ms] Typ.
PAGE 7
Smart High-Side Power Switch BSP452 Typ. input turn on voltage threshold VIN(T+) = f (Tj); Figure 6: Undervoltage restart of charge pumpe VIN(T+) [V] VON [V] 3 13V 2.5 2 V bb(over) 1.5 V 1 V bb(o rs t) bb(u rs t) V 0.5 bb(u c p) V bb(under) 0 -50 -25 0 25 50 75 100 125 150 Tj [°C] Vbb [V] charge pump starts at Vbb(ucp) about 7 V typ. Test circuit Typ. on-state resistance (Vbb-Pin to Out-Pin) RON = f (Vbb,IL); IL=0.
PAGE 8
Smart High-Side Power Switch BSP452 Package Outlines 1.6 ±0.1 6.5 ±0.2 0.1 max +0.2 acc. to DIN 6784 1 2 3.5 ±0.2 4 0.5 min B 7 ±0.3 3 ±0.1 15˚max A 3 0.28 ±0.04 2.3 0.7 ±0.1 4.6 0.25 Figure 1 M 0.25 A M B PG-SOT-223 (Plastic Dual Small Outline Package) (RoHS-compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.
PAGE 9
Smart High-Side Power Switch BSP452 Revision History Version 1.0 Data Sheet Date Changes 2007-05-25 Creation of the green datasheet. First page : Adding the green logo and the AEC qualified Adding the bullet AEC qualified and the RoHS compliant features Package page Modification of the package to be green. 9 V1.
PAGE 10
Edition 2007-05-25 Published by Infineon Technologies AG 81726 Munich, Germany © Infineon Technologies AG 5/29/07. All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”).