iC-XU

PROGRAMMABLE QUAD LOW/HIGH SIDE DRIVER

FEATURES

APPLICATIONS

4 independently controllable channels with 8 power output
stages

Power output stages for 350mA continuous current and high
impulse load

Integrated free-wheeling diodes

Microprocessor-compatible drive circuit for up to 4 servo-
motors or loads in half-bridge or 2 motors in full-bridge
operation

TTL-compatible and noise-proof inputs with integrated
clamping diodes

CMOS-compatible due to low input currents

Broad voltage range for unipolar and bipolar supply

Low/high side driver for any
load circuits

4-channel drive circuit for
servomotors

PACKAGES

PDIP22

BLOCK DIAGRAM

Rev A1

PWM INPUT

+5V

DRIVER INHIBIT

-10V..0V

+5V..20V

VCC

RESET

+12V

iC-XU

LOGIC

LATCH

STROBE

M4-

M4+

M3-

M3+

M2-

M2+

M1-

M1+

FHB

ND+

ND-

NCS2

NCS1

+VM

-VM

VCC

GND

FULL/HALF

iC-Haus GmbH

Tel

+49-6135-9292-0

Integrated Circuits

Fax +49-6135-9292-192

Am Kuemmerling 18, D-55294 Bodenheim

http://www.ichaus.com

iC-XU

PROGRAMMABLE QUAD LOW/HIGH SIDE DRIVER

Rev A1, Page 2/10

DESCRIPTION

The device iC-XU is a universal quadruple low/high side driver for any loads, e.g. lamps and relays, or to
drive servomotors in half- or full-bridge circuit.

Designed especially for use in microprocessor-controlled systems, it features appropriate control, address
and data lines which enable a direct connection to the microprocessor bus. The input interfaces ensure
TTL, CMOS and NMOS compatibility and are immune to short voltage peaks.

In the programmable half-bridge mode (FHB= 0) the device can drive as many as four motors via inte-
grated push-pull power output stages. In the full-bridge mode (FHB= 1) two motors are operated from
output stages driven in phase opposition.
The current operating state of the output stages is stored in the associated flipflops. Via inputs SP or NP,
all output stages can also be blocked or pulsed simultaneously in stored state.

This device is designed for industry applications with the highest quality requirements and is available as a
bipolar IC in a plastic DIL package.

PACKAGES PIDP22 to JEDEC Standard

PIN CONFIGURATION PDIP22

PIN FUNCTIONS

(top view)

No. Name Function

GND

Ground

M1+

Driver 1 (Source)

M2+

Driver 2 (Source)

+VM

Pos. Driver Supply Voltage

M3+

Driver 3 (Source)

M4+

Driver 4 (Source)

ND+

Data Input (Source)

ND-

Data Input (Sink)

NCS1 Chip Select 1, active low

NCS2 Chip Select 2, active low

Address

FHB

Full/Half Bridge Select

Reset

VCC

Logic Supply Voltage

PWM Input, active low

Drivers Inhibit

M4-

Driver 4 (Sink)

M3-

Driver 3 (Sink)

-VM

Neg. Driver Supply Voltage

M2-

Driver 2 (Sink)

M1-

Driver 1 (Sink)

iC-XU

PROGRAMMABLE QUAD LOW/HIGH SIDE DRIVER

Rev A1, Page 3/10

PROGRAMMING

Half Bridge Mode (FHB= 0)

Inputs

Latches

Drivers

NCS1 NCS2

ND-

ND+

off

off

off

off

Full Bridge Mode (FHB= 1)

Inputs

Latches

Drivers

NCS1 NCS2

ND-

ND+

off

off

off

off

1= High Level, 0= Low Level, X= undefined, t: 0

1, Q0= no changes occur,

NSC1, NCS2 active low, NCS1 logical AND gated with NCS2

iC-XU

PROGRAMMABLE QUAD LOW/HIGH SIDE DRIVER

Rev A1, Page 4/10

ABSOLUTE MAXIMUM RATINGS

Values beyond which damage may occur; device operation is not guaranteed.

Item

Symbol

Parameter

Conditions

Fig.

Unit

Min.

Max.

G001 VCC

Logic Supply Voltage

G002 +VM

Pos. Driver Supply Voltage

G003 +VM

Neg. Driver Supply Voltage

-10

G004 VM

Supply Voltage +VM vs. -VM

G005 I(M+)

Current in M+ (*)

-350

G006 I(M-)

Current in M- (*)

350

G007 Ipk(M+)

Pulse Current in M+

ton< 100ms, toff= 10

ton

-500

G008 Ipk(M-)

Pulse Current in M-

ton< 100ms, toff= 10

ton

500

G009 I()

Current in A0, A1, NCS1, NCS2, ND-,
ND+, FHB, R, NP, SP

-8

TG1 Pmax

Max. Power Dissipation

PDIP22 package, Ta= 70

0.8

TG2 Tj

Junction Temperature

-40

150

TG3 Ts

Storage Temperature

-40

150

(*) M+: M1+..M4+, M-: M1-..M4-

THERMAL DATA

Operating Conditions: +VM= 4..8V, -VM= -8..0V, VCC= 5V

10%

Item

Symbol

Parameter

Conditions

Fig.

Unit

Min.

Typ.

Max.

Operating Ambient Temperature
Range

Rthja

Thermal Resistance
Chip to Ambient

soldered on PCB, with approx. 2cm²
cooling surface
PDIP22 package

K/W

All voltages are referenced to ground unless otherwise noted.
All currents into the device pins are positive; all currents out of the device pins are negative.

iC-XU

PROGRAMMABLE QUAD LOW/HIGH SIDE DRIVER

Rev A1, Page 5/10

ELECTRICAL CHARACTERISTICS

Operating Conditions:
VCC= 5V

10%, +VM= 4..8V, -VM= -8..0V, Tj= 0..125

C, unless otherwise noted.

Item

Symbol

Parameter

Conditions

Fig.

Unit

Min.

Typ.

Max.

Total Device

001

VCC

Permissible Supply Voltage
Range at VCC

4.5

5.5

002

I(VCC)

Supply Current in VCC

M-: off

27
70

9.5
8.6

mA
mA
mA

003

I(VCC)

Supply Current in VCC

M-: on, -VM= -8..-5V

27
70

9.5
8.6

mA
mA
mA

004

I(VCC)

Supply Current in VCC

M-: on, -VM= -5..0V

27
70

83
63

120

mA
mA
mA

005

Permissible Supply Voltage
Range at +VM to -VM

006

I(+VM)

Supply Current in +VM

M+: off

007

I(+VM)

Supply Current in +VM

M+: on, +VM= 20V, -VM to GND

008

I(-VM)

Supply Current in -VM

M-: off, -VM= -8V

-5

-2

mA
mA

009

I(-VM)

Supply Current in -VM

M-: on, -VM= -8V

27
70

-120

-74
-54

mA
mA
mA

Inputs A0, A1, NCS1, NSC2, ND+, ND-, FHB, R, NP, SP

101

Vt()hi

Threshold Voltage hi

VCC= 5V

102

Vt()lo

Threshold Voltage lo

VCC= 5V

0.8

103

I()hi

Input Current hi

V()= 2.7V

104

I()lo

Input Current lo

V()= 0.4V

-100

105

Vc()hi

Clamp Voltage hi

I()= 5mA

27
70

7.6
7.9

8.5

V
V
V

106

Vc()lo

Clamp Voltage lo

I()= -5mA

27
70

-1.5

-0.88
-0.80

V
V
V

107

tp
(NCS-M)

Switch Delay NCS1 or NCS2 to
M+ resp. M-

Driver Outputs M+, M-

201

Vs()hi

Saturation Voltage hi at M+

Vs()hi= +VM - V(M+);
I(M+)= -500mA

27
70

1.2
1.1

2.5

V
V
V

202

Vs()hi

Saturation Voltage hi at M+

Vs()hi= +VM - V(M+);
I(M+)= -350mA

0.9

1.2

203

Vs()lo

Saturation Voltage lo at M-

Vs()lo= V(M-) - (-VM);
I(M-)= 500mA

27
70

0.80
0.85

2.5

V
V
V

204

Vs()lo

Saturation Voltage lo at M-

Vs()hi= V(M-) - (-VM);
I(M-)= 350mA

0.7

1.2

V
V

205

I0()

Leakage Current in M+

M+: off

-20

206

I0()

Leakage Current in M-

M-: off

-20

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