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PROFET

ITS711L1

Infineon Technologies AG 1 2006-Mar-23

Smart Four Channel Highside Power Switch

for Industrial Applications

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

Application

•

µC compatible power switch with diagnostic feedback

for 12 V and 24 V DC grounded loads in industrial applications

•

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 and diagnostic

feedback, monolithically integrated in Smart SIPMOS



technology. Providing embedded protective functions.

Pin Definitions and Functions

Pin Symbol Function

1,10,

11,12,

15,16,

19,20

Positive power supply voltage. Design the

wiring for the simultaneous max. short circuit

currents from channel 1 to 4 and also for low

thermal resistance

3 IN1

Input 1 .. 4, activates channel 1 .. 4 in case of

5 IN2 logic high signal

7 IN3

9 IN4

18 OUT1

Output 1 .. 4, protected high-side power output

17 OUT2 of channel 1 .. 4. Design the wiring for the

14 OUT3 max. short circuit current

13 OUT4

4 ST1/2

Diagnostic feedback 1/2 of channel 1 and

channel 2, open drain, low on failure

8 ST3/4

Diagnostic feedback 3/4 of channel 3 and

channel 4, open drain, low on failure

2 GND1/2

Ground 1/2 of chip 1 (channel 1 and channel 2)

6 GND3/4

Ground 3/4 of chip 2 (channel 3 and channel 4)

With external current limit (e.g. resistor R

GND

=150 Ω) in GND connection, resistor in series with ST

connection, reverse load current limited by connected load.

Product Summary

Overvoltage Protection

bb(AZ)

43 V

Operating voltage

bb(on)

5.0 ... 34 V

Operating temperature

-30 … +85 °C

active channels: one

two parallel four parallel

On-state resistance R

200 100 50

mΩ

Nominal load current I

L(NOM)

1.9 2.8 4.4

Current limitation I

L(SCr)

4 4 4

Pin configuration (top view)

1 • 20 V

GND1/2 2 19 V

IN1 3 18 OUT1

ST1/2 4 17 OUT2

IN2 5 16 V

GND3/4 6 15 V

IN3 7 14 OUT3

ST3/4 8 13 OUT4

IN4 9 12 V

10 11 V

PG-DSO-20

Summary of content (16 pages)

PAGE 1
PROFET® ITS711L1 Smart Four Channel Highside Power Switch for Industrial Applications 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 ON-state • CMOS compatible input • Loss of ground and loss of Vbb protection
PAGE 2
PROFET® ITS711L1 Block diagram Four Channels; Open Load detection in on state; Voltage source Overvoltage protection Current limit 1 + V bb Gate 1 protection V Logic 3 IN1 5 IN2 4 ST1/2 ESD Voltage Level shifter sensor Rectifier 1 Logic Signal GND Chip 1 Current limit 2 Level shifter Rectifier 2 GND1/2 OUT1 18 Temperature sensor 1 Open load Short to Vbb detection 1 Charge pump 1 Charge pump 2 2 Limit for unclamped ind.
PAGE 3
PROFET® ITS711L1 Maximum Ratings at Tj = 25°C unless otherwise specified Parameter Symbol Supply voltage (overvoltage protection see page 4) Supply voltage for full short circuit protection Tj,start = -40 ...+150°C Load current (Short-circuit current, see page 5) Load dump protection2) VLoadDump = UA + Vs, UA = 13.5 V RI3) = 2 Ω, td = 200 ms; IN = low or high, each channel loaded with RL = 7.
PAGE 4
PROFET® ITS711L1 Electrical Characteristics Parameter and Conditions, each of the four channels Symbol at Tj = 25 °C, Vbb = 12 V unless otherwise specified Load Switching Capabilities and Characteristics On-state resistance (Vbb to OUT) IL = 1.
PAGE 5
PROFET® ITS711L1 Parameter and Conditions, each of the four channels Symbol at Tj = 25 °C, Vbb = 12 V unless otherwise specified Values min typ max Unit ---- 28 44 -- 60 70 12 µA --- 2 8 3 12 mA each channel, Tj =-40°C: IL(SCp) 5.5 9.5 13 4.5 7.5 11 Tj =25°C: 2.5 4.
PAGE 6
PROFET® ITS711L1 Parameter and Conditions, each of the four channels Symbol at Tj = 25 °C, Vbb = 12 V unless otherwise specified Values min typ max Diagnostic Characteristics Open load detection current, (on-condition) 10 -200 each channel, Tj = -40°C: I L (OL) 10 -150 Tj = 25°C: 10 -150 Tj = 150°C: twice the current of one channel two parallel channels four times the current of one channel four parallel channels 13 ) Open load detection voltage Tj =-40..
PAGE 7
PROFET® ITS711L1 Truth Table Channel 1 and 2 Channel 3 and 4 (equivalent to channel 1 and 2) Chip 1 Chip 2 IN1 IN3 IN2 IN4 OUT1 OUT3 OUT2 OUT4 L L H H L L H L H X L L H L H L H L H X L L H L H X L L H H Z Z H L H X H H H L H L H L H X Z Z H L H X L H X L X H L H X X X L L H L H X X X L H X L H X L L L L L X X L H H H L L L X X L L L ST1/2 ST3/4 BTS 711L1 Normal operation Channel 1 (3) Open load Channel 2 (4) Channel 1 (3) Short circuit to Vbb Channel 2 (4) both channel Overtemperature
PAGE 8
PROFET® ITS711L1 Input circuit (ESD protection), IN1...4 Overvoltage protection of logic part GND1/2 or GND3/4 R IN I + V bb ESD-ZD I I I V RI IN Z2 IN Logic GND ST R ST 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). V Z1 GND R GND Status output, ST1/2 or ST3/4 Signal GND VZ1 = 6.1 V typ., VZ2 = 47 V typ., RI = 3.5 kΩ typ.
PAGE 9
PROFET® ITS711L1 Open-load detection, OUT1...4 ON-state diagnostic condition: VON < RON·IL(OL); IN high GND disconnect with GND pull up (channel 1/2 or 3/4) + V bb V Vbb IN2 PROFET ST GND OUT1 IN1 V VON ON IN1 OUT2 IN2 OUT Open load detection Logic unit V V bb GND Any kind of load. If VGND > VIN - VIN(T+) device stays off Due to VGND > 0, no VST = low signal available. OFF-state diagnostic condition: VOUT > 3 V typ.
PAGE 10
PROFET® ITS711L1 Inductive load switch-off energy dissipation Typ. on-state resistance RON = f (Vbb,Tj ); IL = 1.
PAGE 11
PROFET® ITS711L1 Typ. standby current Ibb(off) = f (Tj ); Vbb = 9...34 V, IN1...4 = low Ibb(off) [µA] 60 50 40 30 20 10 0 -50 0 50 100 150 200 Tj [°C] Typ.
PAGE 12
PROFET® ITS711L1 Timing diagrams Timing diagrams are shown for chip 1 (channel 1/2). For chip 2 (channel 3/4) the diagrams are valid too.
PAGE 13
PROFET® ITS711L1 Figure 5a: Open load: detection in ON-state, open load occurs in on-state Figure 3b: Turn on into short circuit: shut down by overtemperature, restart by cooling (two parallel switched channels 1 and 2) IN1 IN1/2 IN2 I +I L1 channel 2: normal operation L2 I L(SCp) VOUT1 I L(SCr) t ST1/2 channel 1: open load I L1 t d(ST OL1) off(SC) open load normal load t d(ST OL2) t d(ST OL1) t d(ST OL2) ST t t td(ST OL1) = 30 µs typ.
PAGE 14
PROFET® ITS711L1 Figure 5c: Open load: detection in ON- and OFF-state (with REXT), turn on/off to open load VON(CL) V on IN1 off-state V OUT1 I L1 bb(u rst) V ST t t d(ST) d(ST) V V channel 1: open load V t d(ST OL5) V bb(over) bb(o rst) bb(u cp) bb(under) V bb t IN = high, normal load conditions. Charge pump starts at Vbb(ucp) = 5.6 V typ.
PAGE 15
PROFET® ITS711L1 Package and Ordering Code Standard PG-DSO-20-9 ITS711L1 Ordering Code SP000219532 All dimensions in millimetres 1) Does not include plastic or metal protrusions of 0.15 max per side 2) Does not include dambar protrusion of 0.05 max per side Definition of soldering point with temperature Ts: upper side of solder edge of device pin 15. Pin 15 Printed circuit board (FR4, 1.5mm thick, one layer 70µm, 6cm2 active heatsink area) as a reference for max.
PAGE 16
PROFET® ITS711L1 Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81669 München © Infineon Technologies AG 2006 All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved.