|
|
PDF ISL83387E Data sheet ( Hoja de datos )
| Número de pieza | ISL83387E | |
| Descripción | +/-15kV ESD Protected/+3#V to +5.5V/ 1Microamp/ 250kbps/ RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ISL83387E (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
®
Data Sheet
February 2003
ISL83387E
FN6040
+/-15kV ESD Protected, +3V to +5.5V,
1Microamp, 250kbps, RS-232
Transceivers with Enhanced Automatic
Powerdown and a Separate Logic Supply
The Intersil ISL83387E is a 3.0V to 5.5V powered RS-232
transceiver which meets ElA/TIA-232 and V.28/V.24
specifications, even at VCC = 3.0V. Additionally, it provides
±15kV ESD protection (IEC61000-4-2 Air Gap and Human
Body Model) on transmitter outputs and receiver inputs
(RS-232 pins). Targeted applications are PDAs, Palmtops,
and notebook and laptop computers where the low
operational, and even lower standby power consumption is
critical. Efficient on-chip charge pumps, coupled with manual
and enhanced automatic powerdown functions, reduce the
standby supply current to a 1µA trickle. TSSOP packaging,
and the use of small, low value capacitors ensure board
space savings as well. Data rates greater than 250kbps are
guaranteed at worst case load conditions.
The ISL83387E features a VL pin that adjusts the logic pin
output levels and input thresholds to values compatible with
the VCC powering the external logic (e.g., a UART).
This device includes an enhanced automatic powerdown
function which powers down the on-chip power-supply and
driver circuits. This occurs when all receiver and transmitter
inputs detect no signal transitions for a period of 30 seconds.
It power back up, automatically, whenever it senses a
transition on any transmitter or receiver input.
Table 1 summarizes the features of the ISL83387E, while
Application Note AN9863 summarizes the features of each
device comprising the 3V RS-232 family.
Ordering Information
PART NO.
(BRAND)
ISL83387EIV
(83387EIV)
ISL83387EIV-T
(83387EIV)
TEMP.
RANGE (oC)
PACKAGE
-40 to 85 24 Ld TSSOP
-40 to 85 Tape and Reel
PKG. NO.
M24.173
M24.173
Features
• VL Supply Pin for Compatibility with Mixed Voltage
Systems
• ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)
• Low Power, Pin Compatible Upgrade for MAX3387E
• Manual and Enhanced Automatic Powerdown Features
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• On-Chip Charge Pumps Require Only Four External
0.1µF Capacitors
• Receivers Stay Active in Powerdown
• Very Low Supply Current . . . . . . . . . . . . . . . . . . . . 300µA
• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
• Wide Power Supply Range . . . . . . . Single +3V to +5.5V
• Low Supply Current in Powerdown State. . . . . . . . . < 1µA
Applications
• Any System Requiring RS-232 Communication Ports
- Battery Powered, Hand-Held, and Portable Equipment
- Laptop Computers, Notebooks, Palmtops
- Digital Cameras
- PDA’s and PDA Cradles
- Cellular/Mobile Phones
PART
NUMBER
ISL83387E
TABLE 1. SUMMARY OF FEATURES
NO. OF NO. OF DATARATE Rx. ENABLE
Tx. Rx.
(kbps) FUNCTION?
VL LOGIC
SUPPLY PIN?
MANUAL
ENHANCED AUTOMATIC
POWER- DOWN? POWERDOWN FUNCTION?
33
250
NO
YES
YES
YES
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved
1 page  
ISL83387E
Electrical Specifications
TTeypsticCaolsnadriteioantsT: AVC=C25=o3CV,
to 5.5V, C1
VCC = VL =
- C4 = 0.1µF, VL =
3.3V (Continued)
VCC;
Unless
Otherwise
Specified.
PARAMETER
TEST CONDITIONS
TEMP
(oC)
MIN
TYP MAX
TRANSMITTER OUTPUTS
Output Voltage Swing
All Transmitter Outputs Loaded with 3kΩ to Ground
Full ±5.0 ±5.4
-
Output Resistance
Output Short-Circuit Current
Output Leakage Current
VCC = V+ = V- = 0V, Transmitter Output = ±2V
VOUT = 0V
VOUT = ±12V, VCC = 0V or 3V to 5.5V
Automatic Powerdown or FORCEOFF = GND
Full 300 10M
-
Full -
±35 ±60
Full -
- ±25
ENHANCED AUTOMATIC POWERDOWN (FORCEON = GND, FORCEOFF = VCC)
Receiver Input Thresholds to
INVALID High
See Figure 4
Full -2.7 - 2.7
Receiver Input Thresholds to
INVALID Low
See Figure 4
Full -0.3 - 0.3
INVALID Output Voltage Low
IOUT = 1.6mA
INVALID Output Voltage High
IOUT = -1.0mA
Receiver Positive or Negative
See Figure 7
Threshold to INVALID High Delay
(tINVH)
Receiver Positive or Negative
See Figure 7
Threshold to INVALID Low Delay
(tINVL)
Receiver or Transmitter Edge to Note 2, See Figure 7
Transmitters Enabled Delay (tWU)
Receiver or Transmitter Edge to
Transmitters Disabled Delay
(tAUTOPWDN)
Note 2, See Figure 7
TIMING CHARACTERISTICS
Full -
Full VL - 0.6
25 -
-
-
1
0.4
-
-
25 - 30 -
25 - 100 -
Full 15 30 60
Maximum Data Rate
Receiver Propagation Delay
Time to Exit Powerdown
Transmitter Skew
Receiver Skew
Transition Region Slew Rate
RL = 3kΩ, CL = 1000pF, One Transmitter Switching
Full 250
500
Receiver Input to Receiver
Output, CL = 150pF
tPHL
tPLH
25 - 0.15
25 - 0.15
TX | VOUT | ≥ 3.7V
25 - 100
tPHL - tPLH
25 - 100
tPHL - tPLH
25 -
50
VCC = 3.3V,
RL = 3kΩ to 7kΩ,
Measured From 3V to -3V or -3V
to 3V
CL = 150pF to 1000pF
CL = 150pF to 2500pF
25
25
6
4
18
13
-
-
-
-
-
-
30
30
ESD PERFORMANCE
RS-232 Pins (TOUT, RIN)
Human Body Model
IEC61000-4-2 Air Gap Discharge
25 - ±15 -
25 - ±15 -
IEC61000-4-2 Contact Discharge
25 - ±8 -
NOTE:
2. An “edge” is defined as a transition through the transmitter or receiver input thresholds.
UNITS
V
Ω
mA
µA
V
V
V
V
µs
µs
µs
sec
kbps
µs
µs
µs
ns
ns
V/µs
V/µs
kV
kV
kV
5
5 Page 
ISL83387E
without allowing any latchup mechanism to activate, and
don’t interfere with RS-232 signals as large as ±25V.
Human Body Model (HBM) Testing
As the name implies, this test method emulates the ESD
event delivered to an IC during human handling. The tester
delivers the charge through a 1.5kΩ current limiting resistor,
making the test less severe than the IEC61000 test which
utilizes a 330Ω limiting resistor. The HBM method
determines an ICs ability to withstand the ESD transients
typically present during handling and manufacturing. Due to
the random nature of these events, each pin is tested with
respect to all other pins. The RS-232 pins on “E” family
devices can withstand HBM ESD events to ±15kV.
IEC61000-4-2 Testing
The IEC61000 test method applies to finished equipment,
rather than to an individual IC. Therefore, the pins most likely to
suffer an ESD event are those that are exposed to the outside
world (the RS-232 pins in this case), and the IC is tested in its
typical application configuration (power applied) rather than
testing each pin-to-pin combination. The lower current limiting
resistor coupled with the larger charge storage capacitor yields
a test that is much more severe than the HBM test. The extra
ESD protection built into this device’s RS-232 pins allows the
design of equipment meeting level 4 criteria without the need
for additional board level protection on the RS-232 port.
AIR-GAP DISCHARGE TEST METHOD
For this test method, a charged probe tip moves toward the IC
pin until the voltage arcs to it. The current waveform delivered
to the IC pin depends on approach speed, humidity,
temperature, etc., so it is difficult to obtain repeatable results.
The “E” device RS-232 pins withstand ±15kV air-gap
discharges.
CONTACT DISCHARGE TEST METHOD
During the contact discharge test, the probe contacts the
tested pin before the probe tip is energized, thereby
eliminating the variables associated with the air-gap
discharge. The result is a more repeatable and predictable
test, but equipment limits prevent testing devices at voltages
higher than ±8kV. All “E” family devices survive ±8kV contact
discharges on the RS-232 pins.
Typical Performance Curves VCC = VL = 3.3V, TA = 25oC
6.0
VOUT+
4.0
2.0
1 TRANSMITTER AT 250kbps
OTHER TRANSMITTERS AT 30kbps
0
-2.0
-4.0 VOUT -
-6.0
0
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
5000
FIGURE 12. TRANSMITTER OUTPUT VOLTAGE vs LOAD
CAPACITANCE
30
25
20
+SLEW
15
-SLEW
10
5
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 13. SLEW RATE vs LOAD CAPACITANCE
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet ISL83387E.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ISL83387E | +/-15kV ESD Protected/+3#V to +5.5V/ 1Microamp/ 250kbps/ RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply | Intersil Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |