iC-PT 2610
preliminar y
Rev B3, Page 1/11
6-CH. PHASED ARRAY OPTO ENCODER (26-1000)
FEATURES
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
Monolithic photodiode array with excellent signal matching
Very compact size for small encoders
Moderate track pitch for relaxed assembly tolerances
Low noise signal amplifiers with high EMI tolerance
Single-pin programming of 3 operating modes:
analog, digital (1000 CPR), and x2 interpolated (2000 CPR)
Analog signals for alignment and resolution enhancement
Selectable index gating: 1 T, 0.5 T (B-gated), 0.25 T (AB-gated)
Complementary outputs: A, B, Z and NA, NB, NZ
Up to 50,000 RPM at 1000 CPR (25,000 RPM at 2000 CPR)
U, V, W commutation signals, analog and digital
All outputs +/- 4 mA push-pull, current-limited and
short-circuit-proof
LED power control with 40 mA high-side driver
Single 3.5 V to 5.5 V operation, low power consumption
Operating temperature range of -40 °C to +110 °C (+120 °C)
Code disc available: PT15S 26-1000 (glass 1 mm)
OD
∅26.0
mm, ID
∅11.6
mm, optical radius 11.0 mm,
1000 ppr and 4 ppr commutation (90°)
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
+3.5..5.5V
C1
1μF
iC-PT
PA
NA
PB
NB
PZ
NZ
POWER-ON RESET
TIP
TIN
SEL
LED
POWER
CONTROL
VCC
LED
PA
NA
PB
NB
PZ
D1
SIGNAL
COMPARATION
AND
QUADRATURE
OUTPUT
R1
47
INDEX
OUTPUT
NZ
T1
U
U
V
W
COMMUTATION
-
+
V
W
GND
CA
Copyright © 2011, 2013 iC-Haus
http://www.ichaus.com
iC-PT 2610
preliminar y
Rev B3, Page 2/11
6-CH. PHASED ARRAY OPTO ENCODER (26-1000)
DESCRIPTION
iC-PT 2610 is an optical sensor IC with integrated
photosensors whose signals are converted into volt-
ages by low-noise transimpedance amplifiers. Pre-
cise voltage comparators with hysteresis are used to
generate the digital signals, supplied to the output
pins via differential +/- 4 mA push-pull drivers.
The built-in LED power control with its 40 mA driver
stage permits a direct connection of the encoder
LED. Regardless of aging or changes in temperature
the received optical power is kept constant.
Selection input SEL chooses for three different op-
erating modes: regular A/B operation, A/B operation
with 2-fold interpolation, or analog operation. With
analog operation the amplified signal voltages are
available at the outputs for inspection and monitoring
encoder assembly.
Typical applications of iC-PT devices are incremental
encoders for motor feedback and commutation. To
this end, device version iC-PT 2610 provides differ-
ential A/B tracks and a differential index track, each
consisting of multiple photo sensors. The layout of
the signal amplifiers is such that there is an excellent
paired channel matching, eliminating the needs for
signal calibration in most cases.
Additionally, three more tracks are provided to gener-
ate motor commutation information for the U, V and
W outputs, for instance with 90 degree phase shift to
operate 4-phase brushless motors (period count and
phase shift can be varied by the code disc applied).
iC-PT 2610
preliminar y
Rev B3, Page 3/11
6-CH. PHASED ARRAY OPTO ENCODER (26-1000)
PACKAGING INFORMATION
PAD LAYOUT
Chip size 2.88 mm x 3.37 mm
PAD FUNCTIONS
No. Name Function
See pin configuration.
PIN CONFIGURATION
oQFN32-5x5, oQFN32-5x5-3 (5 mm x 5 mm)
PIN FUNCTIONS
No.
Name Function
1 VCC
2 LED
+3.5..5.5 V Supply Voltage
LED Controller, High-Side Current
Source Output
Push-Pull Output A+ / Analog Sin+
1)
Push-Pull Output A- / Analog Sin-
Push-Pull Output B+ / Analog Cos+
Push-Pull Output B- / Analog Cos-
Push-Pull Output Z+ / Analog Z+
Push-Pull Output Z- / Analog Z-
Op. Mode Selection Input:
lo = digital
hi = x2 interpolated
open = analog (alignment aid)
Push-Pull Output W / Analog W
Negative Test Current Input
3)
Push-Pull Output V / Analog V
Positive Test Current Input
3)
Push-Pull Output U / Analog U
Index Length Selection Input:
lo = 0.5 T (B-gated),
hi = 1 T (ungated/T-gated),
open = 0.25 T (A and B-gated)
Ground
Backside Paddle
4)
32 31 30 29 28 27 26 25
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
24
23
22
21
20
19
18
17
3
4
5
6
7
8
9..16
17
PA
NA
PB
NB
PZ
NZ
n.c.
2)
SEL
18
19
20
21
22
23
W
TIN
V
TIP
U
T1
24 GND
25..32 n.c.
BP
1) Capacitive pin loads must be avoided when using the analog output signals.
2) Pin numbers marked n.c. are not in use.
3) The test pins TIP and TIN may remain unconnected.
4) The backside paddle may have a single link to GND. A current flow across the paddle is not permissible.
iC-PT 2610
preliminar y
Rev B3, Page 4/11
6-CH. PHASED ARRAY OPTO ENCODER (26-1000)
PACKAGE DIMENSIONS
All dimensions given in mm.
Maximum molding excess +20 µm / -75 µm versus surface of glass.
Maximum package thickness tolerance +/- 0.1 mm.
RECOMMENDED PCB-FOOTPRINT
4.90
3.60
15
R0.
0.30
SIDE
4.90
0.90
3.60
0.50
0.30
TOP
5
1.90
BOTTOM
3.60
3.24
0.50
0.23
dra_pt33xx-oqfn32-2_pack_1, 10:1
0.40
3.60
5
0.70
iC-PT 2610
preliminar y
Rev B3, Page 5/11
6-CH. PHASED ARRAY OPTO ENCODER (26-1000)
ABSOLUTE MAXIMUM RATINGS
These ratings do not imply operating conditions; functional operation is not guaranteed. Beyond these ratings device damage may occur.
Item
No.
Symbol
Parameter
Voltage at VCC
Current in VCC
Voltage at Output Pins
PA, NA, PB, NB, PZ, NZ, U, V, W
Current in Output Pins
PA, NA, PB, NB, PZ, NZ, U, V, W
Voltage at LED
Current in LED
Voltage at TIP, TIN, SEL
Current in TIP, TIN, SEL
ESD Susceptibility, all pins
Junction Temperature
Chip Storage Temperature Range
HBM, 100 pF discharged through 1.5 kΩ
-40
-40
Conditions
Min.
-0.3
-20
-0.3
-20
-0.3
-120
-0.3
-20
Max.
6
20
VCC +
0.3
20
VCC +
0.3
20
VCC +
0.3
20
2
150
150
V
mA
V
mA
V
mA
V
mA
kV
°C
°C
Unit
G001 VCC
G002 I(VCC)
G003 V()
G004 I()
G005 V()
G006 I()
G007 V()
G008 I()
G009 Vd()
G010 Tj
G011 Ts
THERMAL DATA
Item
No.
T01
T02
T03
Symbol
Ta
Ts
Tpk
Parameter
Operating Ambient Temperature Range
(extended range on request)
Permissible Storage Temperature
Range
Soldering Peak Temperature
tpk < 20 s, convection reflow
tpk < 20 s, vapor phase soldering
MSL 5A (max. floor live 24 h at 30 °C and
60 % RH);
Please refer to customer information file No. 7
for details.
Conditions
Min.
-40
-40
Typ.
Max.
110
110
245
230
°C
°C
°C
°C
Unit
All voltages are referenced to ground unless otherwise stated.
All currents flowing into the device pins are positive; all currents flowing out of the device pins are negative.
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