NovalithIC™ ICsHigh-current half-bridges

Product Information 2007

w w w . i n f i n e o n . c o m / n o v a l i t h I C

3

NovalithIC™ applications

2

The NovalithIC™ family –powering high-current motor drives with innovative ICs

A S A B R O A D L I N E R in motion control, Infineon Technologies offers a rich,

varied selection of motor driver ICs and semiconductor solutions for a wide range of

actuators. Whatever the application – automation, automotive, medical, robotics and

many more – we have a solution that fits.

T O D A T E T H E L I M I T for fully integrated DC motor bridges constituted

continuous load currents up to about 10 A, a range well-served by TrilithIC™ multichip

modules. Higher currents required an H-bridge or three-phase bridge driver IC, alongside

low-ohm MOSFETs such as OptiMOS™.

N O W T H E N O V A L I T H I C ™ family is here to extend integrated motor drive

solutions’ typical current range to 68 A. Ingeniously engineered, it enables you to design

drivers for DC and three-phase motors quickly and easily. Load current sense, active

freewheeling, an adjustable slew rate and smarter features offer you an outstanding

opportunity to cut costs.

50 A

IDC

10 A

1 A

1 A 10 A 60A 100AIPEAK

Mono-lithic

bridges

TrilithIC™DSO package

TrilithIC™PowerTOpackage

H-bridgeDriverIC +

OptiMOS™

3-phase DriverIC +

OptiMOS™

NovalithIC™ D2PAK

The NovalithIC™ family covers a current range of 10 A to 70 A.

Automotive

Power windows

Sunroof

Central door lock

Seat positioning

Wiper

Washer pump

4-wheel transfer case

Electronically Controlled Manual Transmission (ECMT)

Cooling fan

Industry

Automation

Robotics

Power tools

Vending machine

4 5

A look at the inventive design of NovalithIC™

T H E N O V A L I T H I C ™ P A I R S a p-channel high-side switch and an n-channel

low-side switch to create a half-bridge, adding an integrated circuit to protect the device.

The IC also features microprocessor-compatible logic level inputs, diagnosis with current

sense, slew rate adjustment and dead-time generation. Overtemperature, overvoltage,

undervoltage, overcurrent and short-circuit protection is part of the package. Two hallmark

features set this multichip, half-bridge configuration apart – it generates neither charge

pump emissions nor cross-current. The half-bridge combines with others to form H-bridge

and three-phase drive configurations.

Flexibility in design

Half-bridgeDC brush motorsunidirectional

B6 bridgeBrushless DC(BLDC) motors

Sharing half-bridgesDriving two bidirectional DC brushmotors with just three half-bridges

H-bridgeDC brush motorsbidirectional

IS

IN

INH

SR

GND

OUTLS off HS off

VS

Currentsense

Overvolt.detection

Undervolt.detection

Overcurr.detection

HS

Overtemp.detection

Overcurr.detection

LSSlew rate

adjustment

Gate driverHS

Digital logic

Gate driverLS

M M

Vs

M

Vs Vs

Vs

MM

Block diagram of a NovalithIC™

Application diagramNovalithIC™ – features and benefits

Features

Low path resistance down to 16 mOhm

and high-current capability up to 68A typ

Low quiescent current of 7 μA

PWM capability up to 25 kHz +

active freewheeling

Switched mode current limitation

Logic level inputs

Integrated over- / undervoltage,

overtemperature and overcurrent protection

Status flag diagnosis

Analog current sense

Adjustable slew rate

Benefits

R High-current motor drive in a small

package

R Extended battery life

R Significantly lower power dissipation

R Reduced power dissipation in

overcurrent condition

R Connects directly to the microcontroller

R Fewer external components required

R Error detection with direct feedback to

the microcontroller

R No shunt required for block detection

and current control

R Flexible design options for EMC and

switching loss

INHVS

OUT

GND

BTS 7960 BBTS 7960 B

IN

IS

SR

Microcontroller Voltage regulator Reverse polarity protecti-on

High-current H-bridge

I/O I/O I/O I/O I/O

I/O WO

Vdd QD GND

TLE 4278 G

SPD 50P03 LVss

Reset ROI

XC866

MINH

VS

OUT

GND

IN

IS

SR

Vs

76

98

Thermal performance

N O V A L I T H I C ™ I S A H A L F - B R I D G E . In contrast to H-bridges, its power

dissipation spreads over two packages, reducing the device’s thermal load. A half-bridge

device is also remarkably flexible, allowing you to improve your layout’s thermal

performance.

A C T I V E F R E E W H E E L I N G : NovalithICs actively open the appropriate FET when

freewheeling. Rather than using the body diode for freewheeling, the NovalithIC™ line

employs the FET’s channel. This also reduces power dissipation in the device.

S W I T C H M O D E C U R R E N T L I M I TA T I O N : Rather than limiting the current

to a certain value in current limitation mode, NovalithICs disables the FET that detects

overcurrent, and enables the other FET. Inhibiting the FET’s function in the linear range

significantly reduces power dissipation in current limitation mode. Unlike in most other

devices, current limitation is a standard operating mode in NovalithICs. As long as

temperatures remain below the shutdown threshold, this mode remains enabled.

Special acquirements for your requirements

Current capability

W E E N G I N E E R E D NovalithICs to handle high currents, a case in point being

the BTS7970B with a typical rating of 68 A@25 °C. This capability is what makes these ICs

so well suited to so many applications. And with features to reduce power dissipation in

the device, the NovalithIC™ is the perfect solution for your high-current motor drives.

Current sense with digital failure signal

I N N O R M A L O P E R A T I N G M O D E (current sense), a current source connects

to the status pin, which delivers a current proportional to the forward load current flowing

through the active high-side switch. This lets you assess the load current, thereby adding

value and cutting system costs.

Diagnostics and protection

N O V A L I T H I C S C O M E W I T H A S E T of diagnostics and protective features

to safeguard devices against overtemperature, overvoltage, undervoltage, overcurrent and

short circuit. In failure mode, the status pin delivers a predefined current.

Electromagnetic Emission (EME)

W I T H O U T A C H A R G E P U M P, control circuit emissions are very low. And

with a variable slew rate, edge timing is easily adjusted to strike a balance between

emissions and switching loss.

6

NovalithIC™ – features and benefits

Features

Low path resistance down to 16 mOhm

and high-current capability up to 68A typ

Low quiescent current of 7 μA

PWM capability up to 25 kHz +

active freewheeling

Switched mode current limitation

Logic level inputs

Integrated over- / undervoltage,

overtemperature and overcurrent protection

Status flag diagnosis

Analog current sense

Adjustable slew rate

Benefits

R High-current motor drive in a small

package

R Extended battery life

R Significantly lower power dissipation

R Reduced power dissipation in

overcurrent condition

R Connects directly to the microcontroller

R Fewer external components required

R Error detection with direct feedback to

the microcontroller

R No shunt required for block detection

and current control

R Flexible design options for EMC and

switching loss

10 11

The NovalithIC™ line – the latest in a series ofevolutionary advances

W I T H T H E N O V A L I T H I C ™ F A M I L Y , Infineon Technologies has come

full circle with its range of IC products, closing the gap to serve almost all motor

driver applications.

NovalithIC™ product overview

Scaled to suit your needs

BTS 7930B BTS 7960B B

TS 7970B

28mΩ 1

6mΩ 16

mΩ

25A

43A68 A

BTS 7930 B

BTS 7935 B1)

BTS 7960 B

BTS 7965 B1)

Type Peakcurrent

typ. [A]

Peakcurrentmin. [A]

Quiesc.current

[�A]

Operat.range

[V]

PathRDS(on)

typ. [m�]

PathRDS(on)

max. [m�]

Switchingfrequency

ƒ max.[kHz]

Short-circuit

protection

load + GND

+ battery

load + GND

+ battery

load + GND

+ battery

load + GND

+ battery

analog sense +

overload det.

overload det.

analog sense +

overload det.

overload det.

OT,OC,OV

OT,OC,OV

OT,OC,OV

OT,OC,OV

OT,OC,OV

OT,OC,OV

OT,OC,OV

OT,OC,OV

P-TQ263-7

P-TQ263-7

P-TQ263-7

P-TQ263-7

25

25

43

43

18

18

33

33

7

7

7

7

28

28

16

16

25

2

25

2

55

55

30.5

30.5

5.5–28

5.5–28

5.5–28

5.5–28

BTS 7970 Bload

+ GND + battery

analog sense +

overload det.

OT,OC,OV

OT,OC,OV

P-TQ263-768 50 7 16 2530.55.5–28

Load current sense

Self-pro-

tection

Errorflag

Package*

1) In planning

The NovalithIC™ high-current half-bridge family

12 13

TrilithIC™ line at a glanceThe solution for smaller motors: TrilithIC™

T R I E D , T E S T E D A N D P R O V E N in countless applications, the multipurpose

TrilithIC™ product line for smaller motors will remain available. It and monolithic bridges

designed for the 0.1 A to 10 A range round out the product range.

TrilithIC™ high-current full-bridge family

Multichip module

Rpath Iload

50m

120m

120m

220m

BTS7710GP BTS7750GP TO-263-15

BTS7710G BTS7750G BTS7751G

BTS7700G BTS7740G BTS7741G P-DSO-28

BTS7810KBTS7811K

HSS+LSS prot.Open load in off

HSS protected

HSS+LSSprotected

BTS 7700 G

Feature Peakcurrent

[A]

Quiesc.current

[�A]

Operat.range

[V]

PathRDS(on)

typ. [m�]

PathRDS(on)

max. [m�]

Switching fre-quencyƒ max.

Short-circuit

protection

load + GND

OT+OC3) OT 2) P-DSO-289

1 sec.pulse

current [A]

4.3 8 200HSS: 1 kHzLSS: 1 kHZ

5 – 42

Self-pro-

tection

Errorflag

Package*

BTS 7710 Gload + GND

OT+OC

OT P-DSO-28155.8 8 110HSS: 1 kHzLSS: 1 kHZ

2605 – 42

BTS 7710 GPload +GND

OT+OC

OT P-TO263-15159 8 110HSS: 1 kHzLSS: 1 kHZ

2605 – 42

BTS 7740 Gload + GND

+battery

OT+OC

OT P-DSO-2884.2 8 210HSS: 1 kHzLSS: 1 kHZ

5005 – 42

BTS 7741 Gload + GND

+battery

OT+OC

OT+OL1) P-DSO-2884.2 8 210

HSS: 1 kHzLSS: 1 kHZ

5005 – 42

BTS 7750 Gload + GND

+battery

OT+OC

OT P-DSO-28125.6 8 115HSS: 1 kHzLSS: 1 kHZ

2855 – 42

BTS 7751 Gload + GND

+battery

OT+OC

OT+OL

P-DSO-28125.6 8 115HSS: 1 kHzLSS: 1 kHZ

2855 – 42

BTS 7750 GPload +GND

+battery

OT+OC

OT P-TO263-15127 8 115HSS: 1 kHzLSS: 1 kHZ

2855 – 42

BTS 7810 Kload + GND

OT+OC

OT+OL

P-TO263-154225 9 40HSS: 1 kHzLSS: 1 kHZ

1005 – 42

BTS 7811 Kload + GND

OT+OC

OT+OL

P-TO263-154225 9 40HSS: 1 kHzLSS: 20kHZ4)1005 – 42

1) OL=open load 2) OT=overtemperature 3) OC=overcurrent 4) above 5 A load current 1 kHz

Order No. B112-H8940-X-X-7600Printed in GermanyWS 10037 Z&

P20

0461

8

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