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iC-PT3325H Schematic ( PDF Datasheet ) - IC-Haus

Teilenummer iC-PT3325H
Beschreibung 6-CH PHASED ARRAY OPTO ENCODERS
Hersteller IC-Haus
Logo IC-Haus Logo 




Gesamt 11 Seiten
iC-PT3325H Datasheet, Funktion
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 Datasheet, Funktion
6iC-C-HP. TPH..A.HSEDEnARcRoAdYeOrPbTlOueEN®CSODeEriReSspreliminary
Rev A3, Page 6/11
ELECTRICAL CHARACTERISTICS
Operating conditions: VCC = 3.5...5.5 V, Tj = -40...125 °C, λLED = 460 nm, unless otherwise noted
Item Symbol Parameter
No.
Conditions
Total Device
001 VCC
Permissible Supply Voltage
002 I(VCC) Supply Current
photocurrents within op. range, no load
Photosensors
101 λar
Spectral Application Range
Se(λar) = 0.25 x S(λpk)
Photocurrent Amplifiers
201 Z()
Equivalent Transimpedance Gain Z = Vout() / Iph(), Tj = 27 °C;
for PA, PB, NA, NB
for PZ, NZ
for U, V, W
Analog Outputs: PA, NA, PB, NB, PZ, NZ, U, V, W
301 Vout()mx Permissible Max. Output Voltage
302 Vout()ac AC Signal Level
LED iC-TL46
303 Vout()d Dark Signal Level
I() < 10 µA
304 Ri()
Output Resistance
Comparators
401 Vt()hys Switch Hysteresis
LED Power Control
501 Iop()
LED Output Current Control
Range
502 Ictrl()
Controlled LED Output Current refer to Table 5 for details
503 Vs()hi
Saturation Voltage hi
Vs()hi = VCC - V(LED); I() = -40 mA
504 Isc()hi
Short-Circuit Current hi
V() = 0 V
Digital Outputs: PA, NA, PB, NB, PZ, NZ, U, V, W
601 fout
Maximum Output Frequency
comparated
x2 interpolated
x4 interpolated
602 AArel
AB Duty Cycle Variation
AC signal according to item 302,
comparated or interpolated, see Figure 1
603 Vs()lo
Saturation Voltage lo
I() = 4 mA
604 Isc()lo
Short-Circuit Current lo
V() = VCC
605 Vs()hi
Saturation Voltage hi
Vs()hi = VCC - V(), I() = -4 mA
606 Isc()hi
Short-Circuit Current hi
V() = 0 V
Operating Mode Selection Input: SEL
701 Vmod()
Mode Selection
(see Figure 2)
x2 interpolated
analog ABZ, digital UVW
all analog
x4 interpolated
x1 comparated
702 Vmod()hys Hysteresis
703 V0()
Pin-Open Voltage
704 Rpd()
Pull-Down Resistor
V(SEL) = VCC
705 Rpu()
Pull-Up Resistor
V(SEL) = 0 V
Index Gating Selection Input: T1
801 Vgate()
Gating Selection
(see Figure 3)
ungated (1 T with interpolation)
AB-gated (0.25 T)
B-gated (0.5 T)
802 Vgate()hys Hysteresis
803 V0()
Pin-Open Voltage
for index length 0.25 T (AB-gated)
804 Rpd()
Pull-Down Resistor
V(T1) = VCC
805 Rpu()
Pull-Up Resistor
V(T1) = 0 V
Unit
Min. Typ. Max.
3.5 5.5 V
6 mA
400 950 nm
0.5
1.25
1...1.6
M
M
M
1.8
0.2...0.3
580 770 985
250 750 2250
V
Vpp
mV
24 mV
0 40
5...12
-150
0.6
-50
mA
mA
V
mA
400
800
1600
-10
7
-70
kHz
kHz
kHz
10 %
0.6 V
70 mA
0.6 V
-7 mA
95 100 %VCC
70 80 %VCC
45 55 %VCC
20 30 %VCC
0 5 %VCC
10 %VCC
45 50 55 %VCC
65 k
65 k
82 100 %VCC
32 68 %VCC
0 18 %VCC
10 %VCC
45 50 55 %VCC
65 k
65 k

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