INFINEON ITS621L1 User Manual

PROFET

Smart Two Channel Highside Power Switch

®

ITS621L1

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

•

Electrostatic discharge (ESD) protection

1

)

protection

bb

Product Summary Overvoltage protection V Operating voltage

Operating temperature

On-state resistance RON 100 50 Load current (ISO) Current limitation

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 capacitve

loads

•

Replaces electromechanical relays, fuses and discrete circuits

V

channels: each

I

L(ISO)

I

L(SCr)

PG-TO220AB/7

1

Standard

bb(AZ)

bb(on)

T

a

7

Straight leads

43 V

5.0 ... 34 V

-30…+85 °C

both parallel

mΩ

4.4 8.5 A 8 8 A

7

1

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.

+ V

bb

OUT1

4

1

7

Load

O2

Load GND

Voltage

source

V

Logic

Voltage

sensor

IN1

3

IN2

6

ESD

5

ST

PROFET

Logic



Overvoltage

protection

Level shifter

Rectifier 1

Charge

pump 1

Charge

pump 2

Level shifter

Rectifier 2

GND

2

Current

limit 1

Current

limit 2

Signal GND

Gate 1

protection

Limit for unclamped ind. loads 1

Open load

Short to Vbb

detection 1

Gate 2

protection

Limit for unclamped ind. loads 2

Open load

Short to Vbb

detection 2

Temperature

sensor 1

Temperature

sensor 2

OUT2

RR

O1

GND

1)

With external current limit (e.g. resistor R

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

GND

connection, reverse load current limited by connected load.

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PROFET

®

ITS621L1

Pin Symbol Function

1 OUT1 (Load, L) Output 1, protected high-side power output of channel 1

2 GND Logic ground

3 IN1 Input 1, activates channel 1 in case of logical high signal

4 Vbb Positive power supply voltage,

the tab is shorted to this pin

5 ST

Diagnostic feedback: open drain, low on failure

6 IN2 Input 2, activates channel 2 in case of logical high signal

7 OUT2 (Load, L) Output 2, protected high-side power output of channel 2

Maximum Ratings at Tj = 25 °C unless otherwise specified

Parameter Symbol Values Unit

Supply voltage (overvoltage protection see page 4) Vbb 43 V Supply voltage for full short circuit protection

T

=-40 ...+150°C

j Start

Load dump protection2) V

3)

R

= 2 Ω, RL= 2.7 Ω, t

I

d

LoadDump

= 200 ms, IN= low or high

= UA + Vs, UA = 13.5 V

Vbb 34 V

4

V

Load dump

)

60 V

Load current (Short circuit current, see page 5) IL self-limited A Junction temperature Operating temperature range Storage temperature range Power dissipation (DC), T

≤ 25 °C P

C

Inductive load switch-off energy dissipation, single pulse V

= 12V, T

bb

one channel, IL = 4.4 A, Z both channels parallel, IL = 8.5 A, Z

= 150°C, TC = 150°C const.

j,start

= 32 mH, 0 Ω:

L

= 17 mH, 0 Ω: 790

L

Tj Ta T

stg

75 W

tot

-40 ...+105

+150

-30 ...+85

°C

EAS 395 mJ

see diagrams on page 9 Electrostatic discharge capability (ESD) IN:

(Human Body Model) all other pins:

V

1.0

ESD

kV

2.0

acc. MIL-STD883D, method 3015.7 and ESD assn. std. S5.1-1993 Input voltage (DC) VIN -10 ... +16 V Current through input pin (DC) Current through status pin (DC)

see internal circuit diagrams page 7

IIN IST

±2.0 ±5.0

mA

2)

Supply voltages higher than V

150 Ω resistor in the GND connection and a 15 kΩ resistor in series with the status pin. A resistor for the

protection of the input is integrated.

3)

RI = internal resistance of the load dump test pulse generator

4)

V

Load dump

is setup without the DUT connected to the generator per ISO 7637-1 and DIN 40839

require an external current limit for the GND and status pins, e.g. with a

bb(AZ)

Infineon Technologies AG 2 2006-Mar-28

PROFET

®

ITS621L1

Thermal Characteristics

Parameter and Conditions Symbol Values Unit

min typ max Thermal resistance chip - case, both channels:

each channel:

junction - ambient (free air):

R

thJC

thJA

--

1.7

3.4 75

K/W

Electrical Characteristics

Parameter and Conditions, each channel Symbol Values Unit

at Tj = 25 °C, V

Load Switching Capabilities and Characteristics

On-state resistance (pin 4 to 1 or 7) IL = 2 A Tj=25 °C:

each channel Tj=150 °C: Nominal load current, ISO Norm (pin 4 to 1 or 7)

VON = 0.5 V, TC = 85 °C each channel:

both channels parallel:

Output current (pin 1 or 7) while GND disconnected

or GND pulled up, Vbb=30 V, VIN= 0, see diagram page 8

Turn-on time IN to 90% V Turn-off time IN to 10% V R

= 12 Ω, T

L

Slew rate on 10 to 30% V Slew rate off

70 to 40% V

= 12 V unless otherwise specified

bb

=-40...+150°C

j

, R

OUT

, R

L

= 12 Ω, T

=-40...+150°C

j

=-40...+150°C

j

OUT

: :

RON

I

ton t

dV /dt

-dV/dt

L(ISO)

L(GNDhigh)

off

on

off

100

200

mΩ

--

min typ max

--

80

160

3.5

6.8

4.4

8.5

--

-- -- 10 mA

80 80

200 200

400 400

µs

0.1 -- 1 V/µs

A

Infineon Technologies AG 3 2006-Mar-28

PROFET

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ITS621L1

Parameter and Conditions, each channel Symbol Values Unit

at Tj = 25 °C, V

= 12 V unless otherwise specified

bb

min typ max

Operating Parameters

Operating voltage5) Tj =-40...+150°C: V Undervoltage shutdown Tj =-40...+150°C: V Undervoltage restart Tj =-40...+25°C:

V

5.0 -- 34 V

bb(on)

bb(under)

bb(u rst)

3.5 -- 5.0 V

-- -- 5.0

Tj =+150°C: Undervoltage restart of charge pump

V

bb(ucp)

--

5.6 7.0 V

see diagram page 13 Tj =-40...+150°C: Undervoltage hysteresis

∆V

bb(under)

= V

bb(u rst)

- V

bb(under)

Overvoltage shutdown Tj =-40...+150°C: V Overvoltage restart Tj =-40...+150°C: V Overvoltage hysteresis T Overvoltage protection

6)

Tj =-40...+150°C:

=-40...+150°C: ∆V

j

∆V

bb(over)

bb(o rst)

V

bb(AZ)

bb(under)

-- 0.2 -- V

34 -- 43 V 33 -- -- V

-- 0.5 -- V

bb(over)

42 47 -- V Ibb=40 mA Standby current (pin 4)

I

VIN=0 T T

Leakage output current (included in I

VIN=0

=-40...+25°C:

j

= 150°C:

j

)

bb(off)

Operating current (Pin 2)7), VIN=5 V

bb(off)

I

-- -- 12 µA

L(off)

I

-- 4 6 mA

GND

--

14 17

both channels on, Tj =-40...+150°C Operating current (Pin 2)7) one channel on,

=-40...+150°C:

j

T

I

-- 2 3 mA

GND

7.0

30 35

V

µA

5)

At supply voltage increase up to Vbb= 5.6 V typ without charge pump, V

6)

See also V

7)

Add I

, if IST > 0, add IIN, if VIN>5.5 V

ST

in table of protection functions and circuit diagram page 8.

ON(CL)

OUT

≈V

- 2 V

bb

Infineon Technologies AG 4 2006-Mar-28

PROFET

®

ITS621L1

Parameter and Conditions, each channel Symbol Values Unit

at Tj = 25 °C, V

= 12 V unless otherwise specified

bb

min typ max

Protection Functions8)

Initial peak short circuit current limit (pin 4 to 1

I

L(SCp)

or 7)

Repetitive short circuit shutdown current limit I

=-40°C:

Tj

=25°C:

Tj

=+150°C:

Tj

11

9 5

L(SCr)

18 14

8

25 22 14

A

Tj = Tjt (see timing diagrams, page 11) -- 8 -- A

Output clamp (inductive load switch off) at V

= Vbb - V

OUT

ON(CL)

I

= 40 mA, Tj =-40..+150°C: V

L

ON(CL)

41

47 53 V Thermal overload trip temperature Tjt 150 -- -- °C Thermal hysteresis

∆

Tjt -- 10 -- K

Reverse battery (pin 4 to 2) 9) -Vbb -- -- 32 V Reverse battery voltage drop (V

out

IL = -2.9 A, each channel Tj=150 °C: -V

> V

bb

)

ON(rev)

--

610 --

mV

Diagnostic Characteristics

Open load detection current Tj=-40 °C:

(on-condition) Tj=25 ..150°C:

Open load detection voltage

T

10)

(off-condition)

=-40..150°C:

j

Internal output pull down

(pin 1 or 7 to 2), V

=5 V, Tj=-40..150°C

OUT

I

20

L (OL)

V

OUT(OL)

RO

--

20

--

400 300

mA

2 3 4V

4

10 30 kΩ

8)

Integrated protection functions are designed to prevent IC destruction under fault conditions described in the

data sheet. Fault conditions are considered as "outside" normal operating range. Protection functions are not designed for continuous repetitive operation.

9)

Requires 150 Ω resistor in GND connection. The reverse load current through the intrinsic drain-source

diode has to be limited by the connected load. Note that the power dissipation is higher compared to normal operating conditions due to the voltage drop across the intrinsic drain-source diode. The temperature protection is not active during reverse current operation! Input and Status currents have to be limited (see max. ratings page 2 and circuit page 8).

10)

External pull up resistor required for open load detection in off state.

Infineon Technologies AG 5 2006-Mar-28

INFINEON ITS621L1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual