iC-MH

12-BIT ANGULAR HALL ENCODER

Rev C2, Page 2/26

DESCRIPTION

The iC-MH 12-bit angular encoder is a position sensor

with integrated Hall sensors for scanning a permanent

magnet. The signal conditioning unit generates con-

stant amplitude sine and cosine voltages that can

be used for angle calculation. The resolution can

be programmed up to a maximum of 4,096 angular

increments per rotation.

The integrated BiSS Interface also enables the posi-

tion data of several networked sensors to be read out.

And the integrated memory can be written embedded

in the data protocol.

The incremental interface with the pins A, B and Z

supplies quadrature signals with an edge rate of up to

8 MHz. Interpolation can be carried out with maximum

resolution at a speed of 120,000 rpm. The position of

the index pulse Z is adjustable.

The commutation interface with the signals U, V and

W provides 120° phase-shifted signals for block com-

mutation. The zero point of the commutation signals

is freely definable in increments of 1.875° over 360°.

The commutation signals are available for EC motors

with 1 and 2 pole pairs.

The RS422-compatible outputs of the incremental

interface and the commutation interface are pro-

grammable in the output current and the slew rate.

In conjunction with a rotating permanent magnet, the

iC-MH module forms a one-chip encoder. The entire

configuration can be stored in the internal parameter

ROM with zapping diodes. The integrated program-

ming algorithm is responsible for the writing of the

ROM structure.

The device described here is a multifunctional iC that contains

integrated BiSS C interface components. The BiSS C process is

protected by patent DE 10310622 B4 owned by iC-Haus GmbH

and its application requires the conclusion of a license (free of

charge).

Download the license at www.biss-interface.com/bua

PACKAGING INFORMATION QFN28 5 mm x 5 mm to JEDEC MO-220-VHHD-1

PIN CONFIGURATION QFN28 5 mm x 5 mm

MH

22

23

24

25

26

27

28

1

2

3

4

5

6

7

8

9

10

11

12

13

14

21

20

19

18

17

16

15

PTE

NERR

VPA

VNA

SLI

MA

SLO

V

W

nc

nc

nc

nc

nc

nc

nc

nc

nc

nc

nc

nc

VZAP

U

VPD

VND

Z

B

A

PIN FUNCTIONS

No.

Name Function

1 PTE

Test Enable Pin

(connect to VNA, VND)

2 NERR Error Output (active low)

3 VPA

+5 V Supply Voltage (analog)

4 VNA

Ground (analog)

5 SLI

BiSS Interface, Data Input

6 MA

BiSS Interface, Clock Input

7 SLO

BiSS Interface, Data Output

8-11 nc

not connected

12 VZAP Zener Zapping Programming Voltage

13,14 nc

not connected

15 A

Incremental A (+NU)

16 B

Incremental B (+NV)

17 Z

Index Z (+NW)

18 VND

Ground (digital)

19 VPD

+5 V Supply Voltage (digital)

20 U

Commutation U (+NA)

21 V

Commutation V (+NB)

22 W

Commutation W (+NZ)

23-28 nc

not connected

TP

Thermal Pad

The Thermal Pad is to be connected to VNA on the PCB. Orientation of the logo ( MH CODE ...) is subject to

alteration.