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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