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iC-PT3325H 반도체 회로 부품 판매점

6-CH PHASED ARRAY OPTO ENCODERS



IC-Haus 로고
IC-Haus
iC-PT3325H 데이터시트, 핀배열, 회로
6iC-C-HP. TPH..A.HSEDEnARcRoAdYeOrPbTlOueEN®CSODeEriReSspreliminary
FEATURES
o For code discs of 33 mm: iC-PT3320H, 3348H, 3325H
o Compact, high resolution incremental encoder ICs with up to
2500 CPR (native) and 10,000 CPR (interpolated)
o Monolithic HD Phased Array with excellent signal matching
o Moderate track pitch for relaxed assembly tolerances
o Low-noise signal amplifiers with high EMI tolerance
o Pin-selectable operating modes:
analog, comparated (x1), interpolated (x2, x4)
o Pin-selectable index gating:
ungated (1 T), B-gated (0.5 T), AB-gated (0.25 T)
o Complementary quadrature outputs: A, B, Z and NA, NB, NZ
o Commutation signal outputs: U, V, W
o Short-circuit-proof, current-limited, +/- 4 mA push-pull
o Analog signal output for ease of alignment and resolution
enhancement by external interpolation
o LED power control with 40 mA high-side driver
o Low power consumption from single 3.5 V to 5.5 V supply
o Operating temperature range of -40 °C to +120 °C
o Evaluation kits with LED and code disc available for sampling
Rev A3, Page 1/11
APPLICATIONS
o Incremental encoder
o Brushless DC motor
commutation
o Industrial drives
PACKAGES
optoQFN32-5x5
5 mm x 5 mm x 0.9 mm
BLOCK DIAGRAM
iC-PT...H
PA
NA
PB
NB
TIP TIN SEL
LED
POWER
CONTROL
SIGNAL
COMPARATION
AND
QUADRATURE
OUTPUT
PZ
INDEX
NZ OUTPUT
POWER-ON RESET
U-
+
V
W COMMUTATION
VCC
LED
PA
NA
PB
NB
+3.5..5.5V
C1
1μF
D1
R1
47
PZ
NZ
T1
U
V
W
GND
Copyright © 2014 iC-Haus
http://www.ichaus.com


iC-PT3325H 데이터시트, 핀배열, 회로
6iC-C-HP. TPH..A.HSEDEnARcRoAdYeOrPbTlOueEN®CSODeEriReSspreliminary
Rev A3, Page 2/11
DESCRIPTION
The iC-PT H-series represents advanced optical
encoder ICs featuring integrated photosensors ar-
ranged as an HD Phased Array, providing signal fi-
delity at relaxed alignment tolerances.
Its typical application are incremental encoders for
motor speed control and commutation. To this end,
the devices provide differential A/B tracks, a differ-
ential index track and three more tracks to generate
block commutation signals.
Where the optical radius and the native cycles per
revolution (CPR) are determined by the device ver-
sion, the adaption to the motor polecount is carried
out by the code disc, for instance with 4 CPR and
90 degree phase shift to operate 4-phase brushless
motors1).
Encoder blue® series devices feature blue-enhanced
photosensors requiring the application of a LED with
short wavelenght, preferably iC-TL46. An outstand-
ing jitter performance is the key benefit due to the
improvements in signal contrast.
Low-noise transimpedance amplifiers, arranged in a
paired layout to ensure excellent channel matching,
are used to convert the scanner’s signals into volt-
ages of several hundred millivolts2).
Precision comparators with hysteresis generate the
digital signals subsequently, either native or interpo-
lated, which are then output by differential ± 4 mA
push-pull drivers.
The built-in averaging LED power controller with its
40 mA driver permits a direct connection of the en-
coder LED. The received optical power is kept con-
stant regardless of aging effects or changes in tem-
perature.
Various operating modes are selectable at multi-level
input SEL3): digital output with native (x1) or inter-
polated resolution (x2 or x4), analog output or mixed
analog/digital output; the latter combines an output
of sine/cosine signals with comparated UVW com-
mutation signals. During analog operation the am-
plified signal voltages are available at the outputs for
inspection and monitoring of encoder assembly, or to
feed external interplation circuits.
Index gating is also pin-selectable at input T13): the
options are ungated, respectively T-gated if using in-
terpolated output, B-gated and AB-gated.
All devices run at single-sided supplies from 3.5 V up
to 5.5 V and feature a low power consumption.
iC-PT33xxH Encoder blue® Series
Optical radius 14.5 mm, code disc 33.0 mm;
Native CPR: 2000, 2048, 2500.
1) Standard on code discs available for sampling.
2) Operating point varies by device version and CPR.
3) For ease of replacement, iC-PT H-Series pin functions are backwards
compatible to iC-PT series ICs (except for iC-PT3325 which does not fea-
ture pin T1).
Encoder blue is a trademark of iC-Haus GmbH.




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