Datasheet BTS 7741 G Datasheet (lnfineon)

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TrilithIC

Data Sheet

1Overview

1.1 Features

• Quad D-MOS switch driver

• Free configurable as bridge or quad-switch

• Optimized for DC motor management applications

•Low R

DS ON

side switch (typical values @ 25 °C)

• Maximum peak current: typ. 10 A @ 25 °C=

• Very low quiescent current: typ. 5 µA @ 25 °C=

• Small outline, enhanced power P-DSO-package

• Full short-circuit-protection

• Operates up to 40 V

• Status flag diagnosis

• Overtemperature shut down with hysteresis

• Internal clamp diodes

• Open load detection in Off-mode

• Under-voltage detection with hysteresis

• PWM frequencies up to 1 kHz

: 110 mΩ high-side switch, 100 mΩ low-

BTS 7741 G

P-DSO-28-14

Type Ordering Code Package

BTS 7741 G Q67007-A9554 P-DSO-28-14

1.2 Description

The BTS 7741 G is part of the TrilithIC family containing three dies in one package:
One double high-side switch and two low-side switches. The drains of these three
vertical DMOS chips are mounted on separated lead frames. The sources are connected
to individual pins, so the BTS 7741 G can be used in H-bridge- as well as in any other
configuration. Both the double high-side and the two low-side switches of the
BTS 7741 G are manufactured in SMART SIPMOS

R

vertical DMOS power stages with CMOS control circuitry. The high-side switch is

DS ON

®

technology which combines low

fully protected and contains the control and diagnosis circuitry. Also the low-side
switches are fully protected, the equivalent standard product is the BSP 77.

In contrast to the BTS 7740 G, the BTS 7741 G offers an open load in Off-mode
detection and slightly increased current limitation.

Data Sheet 1 2003-03-06

Pin Configuration
(top view)

BTS 7741 G

1DL1

2IL1

3DL1

28 DL1

27 SL1

26 SL1

LS-Leadframe

4N.C.

5DHVS

6GND

7IH1

25 DL1

24 DHVS

23 SH1

22 SH1

HS-Leadframe

8ST

9IH2

21 SH2

20 SH2

N.C.

DL2

DL2

Figure 1

IL2

10DHVS

11

12

13

14

19 DHVS

18 DL2

LS-Leadframe

17 SL2

16 SL2

15 DL2

Data Sheet 2 2003-03-06

BTS 7741 G

1.3 Pin Definitions and Functions

Pin No. Symbol Function

1, 3, 25, 28 DL1 Drain of low-side switch1, lead frame 1

2 IL1 Analog input of low-side switch1

4 N.C. not connected

5, 10, 19, 24 DHVS Drain of high-side switches and power supply voltage,

lead frame 2

1)

6 GND Ground

7 IH1 Digital input of high-side switch1

8 ST Status of high-side switches; open Drain output

9 IH2 Digital input of high-side switch2

11 N.C. not connected

12, 14, 15, 18 DL2 Drain of low-side switch2, lead frame 3

1)

1)

13 IL2 Analog input of low-side switch2

16,17 SL2 Source of low-side switch2

20,21 SH2 Source of high-side switch2

22,23 SH1 Source of high-side switch1

26,27 SL1 Source of low-side switch1

1)

To reduce the thermal resistance these pins are direct connected via metal bridges to the lead frame.

Pins written in bold type need power wiring.

Data Sheet 3 2003-03-06

1.4 Functional Block Diagram

8

ST

BTS 7741 G

DHVS

5,10,19,24

Biasing and ProtectionDiagnosis

IH1

IH2

GND

IL1

IL2

7

13

Driver

OUT
0IN0 L L
0 1 L H

9

6

1 0 H L
1 1 H H

R

O1

Protection

2

Gate

R

O2

20,21

12,14,15,18

22, 23

1,3,25,28

SH2

DL2

SH1

DL1

Driver

Protection

Gate

Driver

26, 27

SL1

16, 17

SL2

Figure 2
Block Diagram

Data Sheet 4 2003-03-06

BTS 7741 G

1.5 Circuit Description

Input Circuit

The control inputs IH1,2 consist of TTL/CMOS compatible Schmitt-Triggers with
hysteresis. Buffer amplifiers are driven by these stages and convert the logic signal into
the necessary form for driving the power output stages. The inputs are protected by ESD
clamp-diodes.

The inputs IL1 and IL2 are connected to the internal gate-driving units of the N-channel
vertical power-MOS-FETs.

Output Stages

The output stages consist of an low

R

Power-MOS H-bridge. In H-bridge

DS ON

configuration, the D-MOS body diodes can be used for freewheeling when commutating
inductive loads. If the high-side switches are used as single switches, positive and
negative voltage spikes which occur when driving inductive loads are limited by
integrated power clamp diodes.

Short Circuit Protection

The outputs are protected against

– output short circuit to ground
– output short circuit to the supply voltage, and
– overload (load short circuit).

An internal OP-Amp controls the Drain-Source-Voltage by comparing the DS-Voltage­Drop with an internal reference voltage. Above this trip point the OP-Amp reduces the
output current depending on the junction temperature and the drop voltage.

In the case of overloaded high-side switches the status output is set to low.

The fully protected low-side switches have no status output.

Overtemperature Protection

The high-side and the low-side switches also incorporate an over temperature protection
circuit with hysteresis which switches off the output transistors. In the case of the high­side switches, the status output is set to low.

Undervoltage-Lockout (UVLO)

V

When

reaches the switch-on voltage V

S

The High-Side output transistors are switched off if the supply voltage
the switch off value

Data Sheet 5 2003-03-06

V

UVOFF.

the IC becomes active with a hysteresis.

UVON

V

drops below

S

BTS 7741 G

Open Load Detection

Open load is detected by voltage measurement in Off state. If the output voltage exceeds
a specified level the error flag is set with a delay.

Status Flag

The status flag output is an open drain output with Zener-diode which requires a pull-up
resistor, c.f. the application circuit on page 14. Various errors as listed in the table
“Diagnosis” are detected by switching the open drain output ST to low. An open load
detection is available when there is an external resistor < R
DHVS or Vs. In order to reach low quiescent current, we recommend to disconnect this
resistor when not used.

2 Truth table and Diagnosis (valid only for the High-Side-Switches)

from SH1 and SH2 pin to

0

Flag IH1 IH2 SH1 SH2 ST Remarks

Inputs Outputs

0
Normal operation;
identical with functional truth table

Open load at high-side switch 1

Open load at high-side switch 2

Overtemperature high-side switch1 0

Overtemperature high-side switch2 X

Overtemperature both high-side switches 0

Under voltage X X L L 1 not detected

0

1

1

0

1

X

X

1

X

X

1

0
1
0
1

X
X
0
1

X
X

0
1

0
1
X

L
L
H
H

Z
H
X
X

L
L

X
X

L
L
L

L
H
L
H

X
X
Z
H

X
X

L
L

L
L
L

1

stand-by mode

1

switch2 active

1

switch1 active

1

both switches
active

0

detected
1
0

detected
1

1
0detected

1
0detected

1
0

detected
0

detected

Inputs: Outputs: Status:

0 = Logic LOW Z = Output in tristate condition 1 = No error

1 = Logic HIGH L = Output in sink condition 0 = Error

X = don’t care H = Output in source condition

X = Voltage level undefined

Data Sheet 6 2003-03-06

3 Electrical Characteristics

3.1 Absolute Maximum Ratings

T

– 40 °C <

< 150 °C

j

Parameter Symbol Limit Values Unit Remarks

min. max.

High-Side-Switches (Pins DHVS, IH1,2 and SH1,2)

BTS 7741 G

Supply voltage

Supply voltage for full short

V

S

V

S(SCP)

– 0.3 42 V –

28 V

circuit protection

HS-drain current*

HS-input current

HS-input voltage

I

I

V

S

IH

IH

– 7 ** A TA = 25°C; tP < 100 ms

– 5 5 mA Pin IH1 and IH2

– 10 16 V Pin IH1 and IH2

Note: * single pulse ** internally limited

Status Output ST

Status pull up voltage

Status Output current

V

I

ST

ST

– 0.3 5.4 V

– 5 5 mA Pin ST

Low-Side-Switches (Pins DL1,2, IL1,2 and SL1,2)

Drain-Source-Clamp voltage

Supply voltage for short
circuit protection

V

DSL

V

DSL(SCP)

42 – V VIL=0V; ID≤ 1mA

30 V VIL=5V

20 V

V

IL

=10V

LS-drain current*

LS-input voltage

I

V

DL

– 7 ** A TA = 25°C; tP < 100 ms

IL

– 0.3 10 V –

Note: * single pulse ** internally limited

Temperatures

Junction temperature

Storage temperature

Data Sheet 7 2003-03-06

T

j

T

stg

– 40 150 °C–

– 55 150 °C–

3.1 Absolute Maximum Ratings (cont’d)
– 40 °C <

T

< 150 °C

j

Parameter Symbol Limit Values Unit Remarks

min. max.

Thermal Resistances (one HS-LS-Path active)

BTS 7741 G

LS-junction case

HS-junction case

Junction ambient

R

thja

= T

j(HS)

/(P

(HS)+P(LS)

R

thjC L

R

thjC H

R

thja

)

– 20 K/W measured to pin 3 or 12

– 20 K/W measured to pin 19

– 60 K/W device soldered to

reference PCB with

2

6cm

cooling area

ESD Protection (Human Body Model acc. MIL STD 883D, method 3015.7 and EOS/
ESD assn. standard S5.1 - 1993)

Input LS-Switch

Input HS-Switch

Status HS-Switch

Output LS and HS-Switch

V

V

V

V

ESD

ESD

ESD

ESD

–2kV

–1kV

–2kV

– 8 kV all other pins connected

to Ground

Note: Maximum ratings are absolute ratings; exceeding any one of these values may

cause irreversible damage to the integrated circuit.

3.2 Operating Range

T

– 40 °C <

< 150 °C

j

Parameter Symbol Limit Values Unit Remarks

min. max.

Supply voltage

Input voltages V

Input voltages

Output current

Junction temperature

V

V

I

T

ST

S

IH

IL

V

UVOFF

– 0.3 15 V –

– 0.3 10 V –

42 V After VS rising

above

V

UVON

02mA–

j

– 40 150 °C–

Note: In the operating range the functions given in the circuit description are fulfilled.

Data Sheet 8 2003-03-06

BTS 7741 G

3.3 Electrical Characteristics

I

= I

SH1

unless otherwise specified

Parameter Symbol Limit Values Unit Test Condition

Current Consumption HS-switch

SH2

= I

SL1

= I

= 0 A; – 40 °C < Tj < 150 °C; 8 V < VS < 18 V

SL2

min. typ. max.

Quiescent current

Supply current

Leakage current of

I

S

I

S

I

SH LK

high-side switch

I

Leakage current through
logic GND in free wheeling

LKCL

I

FH

=

+ I

condition

Current Consumption LS-switch

Input current

I

IL

–58µA IH1 = IH2 = 0 V

T

= 25 °C

j

––12µA IH1 = IH2 = 0 V

– 1.5 3 mA IH1 or IH2 = 5 V

V

= 12 V

S

–36mAIH1 and IH2 = 5V

V

= 12 V

S

––6µA VIH = VSH = 0 V

––10mAIFH = 3 A

SH

–830µA VIL = 5 V;

normal operation

– 160 300 µA

V

IL

= 5 V;

failure mode

Leakage current of low-side

I

DL LK

–210µA VIL = 0 V

switch

Under Voltage Lockout (UVLO) HS-switch

Switch-ON voltage

Switch-OFF voltage

Switch ON/OFF hysteresis

Data Sheet 9 2003-03-06

V

UVON

V

UVOFF

V

UVHY

––4.8VVS increasing

1.8 – 3.5 V VS decreasing

–1–VV

UVON

– V

UVOFF

BTS 7741 G

3.3 Electrical Characteristics (cont’d)

I

= I

SH1

unless otherwise specified

Parameter Symbol Limit Values Unit Test Condition

Output stages

SH2

= I

SL1

= I

= 0 A; – 40 °C < Tj < 150 °C; 8 V < VS < 18 V

SL2

min. typ. max.

Inverse diode of high-side

V

FH

–0.81.2VIFH = 3 A

switch; Forward-voltage

Inverse diode of low-side

V

FL

–0.81.2VIFL = 3 A

switch; Forward-voltage

Static drain-source

R

DS ON H

–110140mΩ ISH =1A

on-resistance of high-side
switch

Static drain-source

R

DS ON L

–100120mΩ ISL =1A;

on-resistance of low-side
switch

Static path on-resistance

R

DS ON

––500mΩ

Short Circuit of high-side switch to GND

Initial peak SC current

I

SCP H

9 1114A Tj = – 40 °C

8 1013A

T

= 25 °C

j

V

= 5 V

GL

T

= 25 °C

j

R

DS ON H

I

=1A;

SH

T

= + 25 °C

j

+R

DS ON L

6810A

V

Short Circuit of high-side switch to

Output pull-down-resistor

R

O

Short Circuit of low-side switch to

Initial peak SC current

I

SCP L

S

12 22 50 kΩ V

V

S

14 17 22 A Tj = – 40 °C

12 15 20 A

8.51015A

Note: Integrated protection functions are designed to prevent IC destruction under fault conditions. Protection

functions are not designed for continuous or repetitive operation.

Data Sheet 10 2003-03-06

T

= + 150 °C

j

= 3 V

DSL

T

= 25 °C

j

T

= 150 °C

j

BTS 7741 G

3.3 Electrical Characteristics (cont’d)

I

= I

SH1

unless otherwise specified

Parameter Symbol Limit Values Unit Test Condition

Thermal Shutdown

SH2

= I

SL1

= I

= 0 A; – 40 °C < Tj < 150 °C; 8 V < VS < 18 V

SL2

min. typ. max.

Thermal shutdown junction

T

j SD

155 180 190 °C–

temperature

Thermal switch-on junction

T

j SO

150 170 180 °C–

temperature

Temperature hysteresis ∆

T –10–°C ∆T = T

Status Flag Output ST of high-side switch

Low output voltage

Leakage current

Zener-limit-voltage

V

ST L

I

ST LK

V

ST Z

–0.20.6VIST = 1.6 mA

––10µA VST = 5 V

5.4 – V IST = 1.6 mA

Open load detection in Off condition

Open load detection

V

OUT(OL)

1.8 2.8 4 V

voltage

Status change after neg.

t

d(OL)

input slope with OL

jSD

500 µs VS = 12 V

– T

jSO

Switching times of high-side switch

Turn-ON-time;
to 90%

V

SH

Turn-OFF-time;
to 10%

V

SH

Slew rate on 10 to 30%

Slew rate off 70 to 40%

Note: switching times are not subject to production test - specified by design

Data Sheet 11 2003-03-06

t

ON

t

OFF

VSHdV/dt

VSH-dV/

dt

OFF

– 85 180 µsR

– 80 180 µsR

––1.2V/µsR

ON

––1.5V/µsR

Load

V

= 12 V

S

Load

V

= 12 V

S

Load

V

= 12 V

S

Load

V

= 12 V

S

= 12 Ω

= 12 Ω

= 12 Ω

= 12 Ω

BTS 7741 G

3.3 Electrical Characteristics (cont’d)

I

= I

SH1

unless otherwise specified

Parameter Symbol Limit Values Unit Test Condition

Switching times of low-side switch

SH2

= I

SL1

= I

= 0 A; – 40 °C < Tj < 150 °C; 8 V < VS < 18 V

SL2

min. typ. max.

Turn ON time to 10%

V

= 0 to 10 V

IL

V

Turn-OFF-time;
to 90%

V

DL

Slew rate on 70 to 50%

V

= 0 to 10 V

IL

Slew rate off 50 to 70%

V

= 0 to 10 V

IL

Note: switching times are not subject to production test - specified by design

V

V

DL

SH

SH

t

ON

t

OFF

-dV/dt

dV/dt

–50150µsR

–60150µsR

–11.5V/µsR

ON

–11.5V/µsR

OFF

Control Inputs of high-side switches GH 1, 2

H-input voltage

L-input voltage

Input voltage hysteresis

H-input current

L-input current

V

IH High

V

IH Low

V

IH HY

I

IH High

I

IH Low

––2.5V–

1––V–

–0.3–V–

15 30 60 µA VIH = 5 V

5–20µA VIH = 0.4 V

Load

V

= 12 V

S

Load

V

= 12 V

S

Load

V

= 12 V

S

Load

V

= 12 V

S

= 10 Ω

= 10 Ω

= 4.7 Ω

= 4.7 Ω

Input series resistance

Zener limit voltage

R

V

I

IH Z

2.7 4 5.5 kΩ –

5.4––VIIH = 1.6 mA

Control Inputs GL1, 2

Gate-threshold-voltage V

IL th

0.9 1.7 2.2 V IDL = 2 mA

Note: The listed characteristics are ensured over the operating range of the integrated

circuit. Typical characteristics specified mean values expected over the
production spread. If not otherwise specified, typical characteristics apply at

T

=

A

25 °C and the given supply voltage.

Data Sheet 12 2003-03-06

BTS 7741 G

VS=12V

I

FH1,2

I

S

C

S

470nF

C

L

100µF

DHVS

I

ST LK

I

ST

V

ST

V

STL

V

STZ

V

IH1

I

IH1

I

IH1

V

IH2

I

IL1

IH1

IH2

GND

I

GND

I

LKCL

IL1

8

ST

Diagnosis

7

9

6

Gate

Driver

Gate

Driver

Biasing and Protection

Protection

2

Gate

Driver

5,10,19,24

R

R

O1

O2

12,14,15,18

20,21

22,23

1,3,25,28

SH2

DL2

SH1

DL1

I

SH2

I

DL2

I

DL LK 2

I

SH1

I

DL1

I

DL LK 1

V

V

DSH2

DSH1

-V

-V

FH2

FH1

V

UVON

V

UVOFF

Protection

I

V

V

IL th 1

V

V

IL th 2

IL2

IL2

IL1

IL2

13

26,27

Gate

Driver

SL1

I

SCP L 1

I

SL1

Figure 3
Test Circuit

HS-Source-Current Named during Short

Circuit

I

SH1,2

I

SCP H

16,17

SL2

I

SCP L 2

I

SL2

V

V

DSL1

DSL2

-V

-V

FL1

FL2

Named during Leakage­Cond.

I

DL LK

Data Sheet 13 2003-03-06

Watchdog

Reset

Q

TLE

4278G

BTS 7741 G

I

VS=12V

WD R

µP

R

Q

100 k

ΩΩΩΩ

V

CC

R

ST

S

10 k

ΩΩΩΩ

IH1

IH2

GND

8

7

9

6

C

22µF

Q

D

Diagnosis

Gate

Driver

Gate

Driver

C

D

47nF

Biasing and Protection

R

D01
Z39

C

S

10µF

DHVS

5,10,19,24

BCR192W

to µC

R

OL

1 k

Ω

optional for
open load
in off

O1

R

O2

12,14,15,18

20,21

SH2

DL2

M

SH1

22,23

Protection

1,3,25,28

DL1

2

IL1

Gate

Driver

Protection

13

IL2

Gate

Driver

In case of V

26,27

GND

<-0.6V or reverse battery th e current int o the µC mig ht be limi ted by external resitors to protect the µC

DSL

SL1

16,17

SL2

Figure 4
Application Circuit

Data Sheet 14 2003-03-06

4 Package Outlines

P-DSO-28-14

(Plastic Transistor Single Outline Package)

-0.1

0.2

1.27

+0.15

0.35

2)

0.2 28x

1528

-0.2

2.45

0.1

2.65 max

0.35 x 45˚

7.6

-0.2

0.4

10.3

1)

+0.8

±0.3

BTS 7741 G

+0.09

8˚ max

0.23

114

18.1

-0.4

1)

Index Marking

1) Does not include plastic or metal protrusions of 0.15 max rer side

2) Does not include dambar protrusion of 0.05 max per side

GPS05123

GPS05123

Sorts of Packing

Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”.

SMD = Surface Mounted Device

Dimensions in mm

Data Sheet 15 2003-03-06

BTS 7741 G

Edition 2003-01

Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81669 München, Germany

© Infineon Technologies AG 3/13/03.

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.

We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding
circuits, descriptions and charts stated herein.

Infineon Technologies is an approved CECC manufacturer

Information

For further information on technology, delivery terms and conditions and prices please contact your nearest Infi­neon Technologies Office in Germany or our Infineon Technologies Representatives worldwide (see address list).

Warnings

Due to technical requirements components may contain dangerous substances. For information on the types in
question please contact your nearest Infineon Technologies Office.

Infineon Technologies Components may only be used in life-support devices or systems with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.

Data Sheet 16 2003-03-06