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PDF ISL32610E Data sheet ( Hoja de datos )
| Número de pieza | ISL32610E | |
| Descripción | RS-485/RS-422 Differential Receivers | |
| Fabricantes | Intersil | |
| Logotipo |  |
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±16.5kV ESD Protected, 1.8V, Micro Power, +125°C,
1/8 Unit Load, RS-485/RS-422 Differential Receivers
ISL32610E, ISL32611E, ISL32612E
The ISL32610E, ISL32611E, ISL32612E are ±16.5kV
IEC61000 ESD protected, fractional unit load (UL), 1.8V
powered, single differential receivers (Rx) for balanced (e.g.,
RS-485) data communication. With their 85µA supply
currents, these receivers are optimized for low power
applications, and deliver the lowest supply currents of any
available single Rx IC (see Figure 1).
To improve performance in low data rate applications with
slow signal transitions, these Rx feature symmetrical switching
points (±200mV) and increased hysteresis. The symmetrical
switching points eliminate the duty cycle distortion introduced
by “full-failsafe” type receivers (see Figure 2), while the larger
hysteresis increases noise immunity.
Receivers present a 1/8 “unit load” to the data bus, which
allows up to 256 devices on the network for large node count
systems (e.g., process automation, remote meter reading
systems). The ISL32611E/ISL32612E Rx output is tri-statable
via the RE/RE input.
Receiver inputs feature a “failsafe-if-open” design, which
ensures a logic high Rx output if Rx inputs are floating. Data
rates up to 256kbps are achievable with this device at
VCC = 1.8V.
See Table 1 for a summary of each device’s features. For a
companion 1.8V differential transmitter in a SOT-23 package,
reference the ISL32613E data sheet.
Features
• Wide Supply Voltage Range . . . . . . . . . . . . . . . . . 1.8V to 3.6V
• Ultra Low Quiescent Supply Current . . . . . . . . . 110µA (Max.)
• IEC61000 ESD Protection on RS-485 Bus Pins . . . . ±16.5kV
- Class 3 ESD Level on all Other Pins. . . . . . . . . . >8kV HBM
• Symmetrical Switching Thresholds for Less Duty Cycle
Distortion (see Figure 2)
• Larger Hysteresis for Improved Noise Immunity . . . . . 70mV
• Data Rates up to 256kbps (1.8V) or 500kbps (3.3V)
• 1/8 Unit Load Allows up to 256 Devices on the RS-485 Bus
• Specified for +125°C Operation
• Three State Rx Output Available
• 5V Tolerant Logic Inputs
• Pb-Free (RoHS Compliant)
Applications
• Industrial/Process Control Networks, Factory Automation
• High Node Count Networks
• Space Constrained Systems
• Building Environmental Control Systems
500
450
400 DYNAMIC (256kbps)
350 ISL3282E
300
STATIC
250
200
150
100 DYNAMIC (256kbps)
ISL3261XE
STATIC
50
1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
VCC (V)
FIGURE 1. ISL3261XE REDUCES OPERATING ICC BY A FACTOR OF
4 FROM PREVIOUS GENERATION RECEIVER ICs, AND
OPERATES WITH SUPPLY VOLTAGES AS LOW AS 1.8V
1
A-B
0
-1
4
0
ISL3261XE
4
ISL3282E
0
VCC = 3.3V, DATA RATE = 125kbps
TIME (4µs/DIV)
FIGURE 2. COMPARED WITH A FULL-FAILSAFE RECEIVER, THE
SYMMETRICAL RX THRESHOLDS OF THE ISL3261XE
DELIVER LESS OUTPUT DUTY CYCLE DISTORTION
WHEN DRIVEN WITH SLOW INPUT SIGNALS
October 21, 2011
FN7869.0
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL32610E, ISL32611E, ISL32612E
Electrical Specifications Test Conditions: VCC = 1.8V; Unless Otherwise Specified. Typicals are at VCC = 1.8V, TA = +25°C. Boldface
limits apply over the operating temperature range, -40°C to +125°C. (Note 9) (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP MIN
(°C) (Note 8)
MAX
TYP (Note 8) UNITS
SWITCHING CHARACTERISTICS
Maximum Data Rate
Receiver Input to Output Delay
fMAX
VID = ±1V, VCM = 0V,
(Figure 3)
tPLH, tPHL (Figure 3)
Receiver Skew | tPLH - tPHL |
tSKD (Figure 3)
Receiver Enable to Output High
Receiver Enable to Output Low
Receiver Disable from Output High
Receiver Disable from Output Low
ESD PERFORMANCE
tZH CL = 15pF, SW = GND,
(Figure 4, Note 12)
tZL CL = 15pF, SW = VCC,
(Figure 4, Note 12)
tHZ CL = 15pF, SW = GND,
(Figure 4, Note 12)
tLZ CL = 15pF, SW = VCC,
(Figure 4, Note 12)
VCC = 1.8V
3V ≤ VCC ≤ 3.6V
VCC = 1.8V
VCC = 3.3V
VCC = 1.8V
VCC = 3.3V
VCC = 1.8V
VCC = 3.3V
VCC = 1.8V
VCC = 3.3V
VCC = 1.8V
VCC = 3.3V
VCC = 1.8V
VCC = 3.3V
Full 256
-
- kbps
Full 500
-
- kbps
Full -
210 1000 ns
25 -
200 - ns
Full -
3 125 ns
25 -
6 - ns
Full - 1100 4000 ns
25
-
1500
-
ns
Full - 1100 4000 ns
25
-
1500
-
ns
Full -
15 75 ns
25 -
6 - ns
Full -
15 75 ns
25 -
6 - ns
RS-485 Pins (A, B)
IEC61000-4-2, Air-Gap Discharge Method
25
-
±16.5
-
kV
IEC61000-4-2, Contact Discharge Method
25 -
±9 - kV
Human Body Model, From Bus Pins to GND
25
-
±16.5
-
kV
All Pins
Human Body Model (Tested per JESD22-A114E) 25 -
±8 - kV
Machine Model (Tested per JESD22-A115-A)
25
-
±400
-
V
NOTES:
8. Compliance to data sheet limits is assured by one or more methods: production test, characterization and/or design.
9. Currents into device pins are positive; currents out of device pins are negative. Voltages are referenced to ground unless otherwise specified.
10. The ISL32611E enters SHDN whenever RE switches high, and the ISL32612E enters SHDN whenever RE switches low.
11. Devices meeting these limits are denoted as “1/8 unit load (1/8 UL)” transceivers. The RS-485 standard allows up to 32 Unit Loads on the bus, so
there can be 256 1/8 UL devices on a bus.
12. Not applicable to the ISL32610E.
Test Circuits and Waveforms
GND / VCC
RE / RE
B
AR
RO
SIGNAL
GENERATORS
15pF
B
0V
A
+0.5V
0V
-0.5V
tPLH
tPHL
VOH
RO
50%
50%
VOL
FIGURE 3A. TEST CIRCUIT
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. RECEIVER PROPAGATION DELAY AND DATA RATE
5 FN7869.0
October 21, 2011
5 Page 
ISL32610E, ISL32611E, ISL32612E
Package Outline Drawing
P5.064
5 LEAD SMALL OUTLINE TRANSISTOR PLASTIC PACKAGE
Rev 3, 4/11
3.00 3
2.80
(1.90)
54
8°
0°
0.22
0.08 5
0.20 (0.008) M C
2
(0.95)
0.50
0.30
TOP VIEW
3.00
2.60
1.70
1.50
3
SEE DETAIL X
END VIEW
0.10 (0.004) C
SIDE VIEW
1.30 1.45 SEATING
0.90 0.90 PLANE
C
0.15
0.00
SEATING
PLANE
C
0.25
0.10
0.10 MIN
4
0.55
0.35
(0.60)
8°
0°
GAUGE PLANE
(0.25)
DETAIL "X"
(2.4)
5
5x (0.60)
5x (1.2)
4
3
(2x 0.95)
(1.90)
TYPICAL RECOMMENDED LAND PATTERN
NOTES:
1. Dimensioning and tolerance per ASME Y14.5M-1994.
2. Package conforms to EIAJ SC-74 and JEDEC MO178AA.
3. Package length and width are exclusive of mold flash, protrusions,
or gate burrs.
4. Footlength measured at reference to gauge plane.
5. Lead thickness applies to the flat section of the lead between
0.08mm and 0.15mm from the lead tip.
6. Controlling dimension: MILLIMETER.
Dimensions in ( ) for reference only.
11 FN7869.0
October 21, 2011
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ISL32610E.PDF ] | |
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