INFINEON BTS 5434G User Manual

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Data Sheet, V1.0, January 2004

BTS 5434G

Smart High-Side Power Switch
PROFET
Four Channels, 60 mΩ

Automotive Power

Never stop thinking.

Smart High-Side Power Switch

BTS 5434G

Table of Contents Page

Product Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.2 Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.1 Pin Assignment BTS 5434G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.2 Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

3 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.1 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4 Block Description and Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . .11

4.1 Power Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

4.1.1 Output On-State Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1.2 Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1.3 Inductive Output Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.1.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2 Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.2.1 Over Load Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2.2 Reverse Polarity Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.3 Over Voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.4 Loss of Ground Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.5 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.3 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

4.3.1 ON-State Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3.2 OFF-State Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3.3 Sense Enable Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.3.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5 Package Outlines BTS 5434G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

6 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Data Sheet 2 V1.0, 2004-01-23

Smart High-Side Power Switch
PROFET

Product Summary

The BTS 5434G is a four channel high-side power
switch in P-DSO-28-19 package providing embedded
protective functions.

The power transistor is built by a N-channel vertical
power MOSFET with charge pump. The device is
monolithically integrated in Smart SIPMOS
technology.

Operating voltage

V

bb(on)

BTS 5434G

P-DSO-28-19

4.5..28V

Over voltage protection

On-State resistance

Nominal load current (one channel active)

Current limitation

Current limitation repetitive

Standby current for whole device with load

V

bb(AZ)

R

DS(ON)

I

L(nom)

I

L(LIM)

I

L(SCr)

I

bb(OFF)

Basic Features

• Very low standby current

• 3.3 V and 5 V compatible logic pins

• Improved electromagnetic compatibility (EMC)

• Stable behavior at under voltage

• Logic ground independent from load ground

• Secure load turn-off while logic ground disconnected

• Optimized inverse current capability

41 V

60 mΩ

3.4 A

23 A

6A

5µA

Type Ordering Code Package

BTS 5434G Q67060-S6157 P-DSO-28-19

Data Sheet 3 V1.0, 2004-01-23

Smart High-Side Power Switch

Protective Functions

• Reverse battery protection without external components

• Short circuit protection

• Overload protection

• Multi-step current limitation

• Thermal shutdown with restart

• Thermal restart at reduced current limitation

• Over voltage protection without external resistor

• Loss of ground protection

• Electrostatic discharge protection (ESD)

Diagnostic Functions

• Enhanced IntelliSense signal for each channel

• Enable function for diagnosis pins (IS1 .. IS4)

• Proportional load current sense signal by current source

• High accuracy of current sense signal at wide load current range

• Open load detection in ON-state by load current sense

• Open load detection in OFF-state by voltage source

• Feedback on over temperature and current limitation in ON-state

BTS 5434G

Applications

• µC compatible high-side power switch with diagnostic feedback for 12 V grounded
loads

• All types of resistive, inductive and capacitive loads

• Suitable for loads with high inrush currents, so as lamps

• Suitable for loads with low currents, so as LEDs

• Replaces electromechanical relays, fuses and discrete circuits

Data Sheet 4 V1.0, 2004-01-23

Smart High-Side Power Switch

BTS 5434G

Overview

1Overview

The BTS 5434G is a four channel high-side power switch (four times 60 mΩ) in
P-DSO-28-19 package providing embedded protective functions.

The Enhanced IntelliSense pins IS1 to IS4 provide a sophisticated diagnostic feedback
signal including current sense function and open load in off state. The diagnosis signals
can be switched on and off by the sense enable pins SENA and SENB.

Integrated ground resistors as well as integrated resistors at each input pin (IN1, IN2,
IN3, IN4, SEN) reduce external components to a minimum.

The power transistor is built by a N-channel vertical power MOSFET with charge pump.
The inputs are ground referenced CMOS compatible. The device is built by two dual
channel chips, monolithically integrated in Smart SIPMOS technology.

1.1 Block Diagram

VBB

OUT2

OUT1

IN1
IN2

IS1
IS2

SENA

channel 1,2 (Chip A)

internal

power

supply

ESD

protection

logic

load cur rent

sense

gate control

&

char ge pum p

open load

detec tion

tem peratur e

sensor

clamp for

inductive load

multi step

load cur r ent

limitation

IN3
IN4

IS3
IS4

SENB

channel 3,4 (Chip B)

control and protecti on cir cuit

equival ent to

channel 1,2

R

GND

GNDA

GNDB

R

OUT4

OUT3

GND

Figure 1 Block Diagram

Data Sheet 5 V1.0, 2004-01-23

Smart High-Side Power Switch

BTS 5434G

1.2 Terms

Following figure shows all terms used in this data sheet.

V

bb

I

IN1

IN1

IS3

I

IN2

IN2

I

IS1

IS1

I

IS2

BTS 5434G

IS2

I

SENA

SENA

I

IN3

IN3

I

IN4

IN4

I

IS3

IS3

I

IS4

I

V

SENB

IS4

V

SENB

IS4

SENB

GNDA

V

IN1

V

IN2

V

IS1

V

IS2

V

SENA

V

IN3

V

IN4

V

VBB

I

bb

GNDB

OUT1

OUT2

Chip A

OUT3

OUT4

Chip B

Overview

I

I

I

I

V

L1

L2

L3

L4

V

V

V

OUT1

DS2

OUT2

DS1

V

V

V

V

OUT3

DS4

OUT4

DS3

Figure 2 Terms

I

GND

Ter m s4 ch . em f

Data Sheet 6 V1.0, 2004-01-23

Smart High-Side Power Switch

BTS 5434G

2 Pin Configuration

2.1 Pin Assignment BTS 5434G

(top view)

VBB

GNDA

IN1

IS1

IS2

IN2

SENA

GNDB

1

2

3

4

5

6

7

8

28

27

26

25

24

23

22

21

Pin Configuration

VBB

OUT1

OUT1

OUT1

OUT2

OUT2

OUT2

OUT3

IN3

IS3

IS4

IN4

SENB

VBB

9

10

11

12

13

14

20

19

18

17

16

15

Figure 3 Pin Configuration P-DSO-28-19

2.2 Pin Definitions and Functions

Pin Symbol I/O

OD

3 IN1 I Input signal for channel 1

6 IN2 I Input signal for channel 2

9 IN3 I Input signal for channel 3

Function

OUT3

OUT3

OUT4

OUT4

OUT4

VBB

12 IN4 I Input signal for channel 4

4 IS1 O Diagnosis output signal channel 1

5 IS2 O Diagnosis output signal channel 2

10 IS3 O Diagnosis output signal channel 3

11 IS4 O Diagnosis output signal channel 4

Data Sheet 7 V1.0, 2004-01-23

Smart High-Side Power Switch

BTS 5434G

Pin Symbol I/O

OD

7 SENA I Sense Enable input for channel 1&2

13 SENB I Sense Enable input for channel 3&4

25, 26, 27 OUT1 O Protected high-side power output channel 1

22, 23, 24 OUT2 O Protected high-side power output channel 2

19, 20, 21 OUT3 O Protected high-side power output channel 3

16, 17, 18 OUT4 O Protected high-side power output channel 4

2 GNDA - Ground connection chip A

8 GNDB - Ground connection chip B

1, 14, 15, 28VBB - Positive power supply for logic supply as well as

Function

output power supply

Pin Configuration

Data Sheet 8 V1.0, 2004-01-23

Smart High-Side Power Switch

BTS 5434G

Electrical Characteristics

3 Electrical Characteristics

3.1 Maximum Ratings

Stresses above the ones listed here may affect device reliability or may cause permanent
damage to the device.

Unless otherwise specified:

T

= 25 °C

j

Pos. Parameter Symbol Limit Values Unit Test

Conditions

R = 0.2 Ω

1)

Supply Voltage

3.1.1 Supply voltage V

3.1.2 Supply voltage for full short

V

circuit protection (single pulse)

T

= -40°C .. 150°C)

(

j(0)

bb

bb(SC)

min. max.

-16 28 V

028VL = 8 µH,

3.1.3 Voltage at power transistor V

3.1.4 Supply Voltage for Load Dump

V

protection

Power Stages

3.1.5 Load current

3.1.6 Maximum energy dissipation

I

E

single pulse

3.1.7 Power dissipation (DC)

P

Logic Pins

3.1.8 Voltage at input pin

3.1.9 Current through input pin

3.1.10 Voltage at sense enable pin

V

I

V

DS

bb(LD)

L

AS

tot

IN

IN

SEN

-52V

41 V RI = 2 Ω

R

= 6.8 Ω

L

L(0)

T

3)

j(0)

= 2 A
= 150°C

- I

L(LIM)

A-

-0.58JI

-1.7 WTa = 85 °C

T

≤ 150 °C

j

-5

-16

-2.0

-8.0

-5

-16

10 V

t ≤ 2min

2.0 mA

t ≤ 2min

10 V

t ≤ 2min

2)

4)

5)

3.1.11 Current through sense enable

pin

3.1.12 Current through sense pin

Data Sheet 9 V1.0, 2004-01-23

I

SEN

I

IS

-2.0

2.0 mA

-8.0

-25 10 mA

t ≤ 2min