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MAX3223ECDWR

3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION

厂商名称：TAOS INC (ams)

厂商官网：http://www.taosinc.com/

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MAX3223E
www.ti.com..........................................................................................................................................
SLLS707A – JANUARY 2006 – REVISED SEPTEMBER 2009
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD PROTECTION
Check for Samples:
MAX3223E
1
FEATURES
ESD Protection for RS-232 Bus Pins
– ±15-kV Human-Body Model (HBM)
– ±8-kV IEC61000-4-2, Contact Discharge
– ±15-kV IEC61000-4-2, Air-Gap Discharge
Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
Operates With 3-V to 5.5-V V
CC
Supply
Operates up to 500 kbit/s
Two Drivers and Two Receivers
Low Standby Current . . . 1
μA
Typ
External Capacitors . . . 4 × 0.1
μF
Accepts 5-V Logic Input With 3.3-V Supply
Alternative High-Speed Pin-Compatible Device
(1 Mbit/s) for SNx5C3223E
•
DB, DW, OR PW PACKAGE
(TOP VIEW)
•
•
•
•
•
•
•
•
EN
C1+
V+
C1−
C2+
C2−
V−
DOUT2
RIN2
ROUT2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
FORCEOFF
V
CC
GND
DOUT1
RIN1
ROUT1
FORCEON
DIN1
DIN2
INVALID
APPLICATIONS
•
•
•
•
•
•
Battery-Powered Systems
PDAs
Notebooks
Laptops
Palmtop PCs
Hand-Held Equipment
DESCRIPTION/ORDERING INFORMATION
The MAX3223E consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD
protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of
TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the
serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to
5.5-V supply. The device operates at typical data signaling rates up to 500 kbit/s and a maximum of 30-V/μs
driver output slew rate.
Flexible control options for power management are available when the serial port is inactive. The
auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of
operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF is
set low and EN is high, both drivers and receivers are shut off, and the supply current is reduced to 1 mA.
Disconnecting the serial port or turning off the peripheral drivers causes auto-powerdown to occur.
Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown enabled,
the device is activated automatically when a valid signal is applied to any receiver input. The INVALID output is
used to notify the user if an RS-232 signal is present at any receiver input. INVALID is high (valid data) if any
receiver input voltage is greater than 2.7 V or less than –2.7 V, or has been between –0.3 V and 0.3 V for less
than 30
μs.
INVALID is low (invalid data) if the receiver input voltage is between –0.3 V and 0.3 V for more than
30
μs.
Refer to
Figure 4
for receiver input levels.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2009, Texas Instruments Incorporated
MAX3223E
SLLS707A – JANUARY 2006 – REVISED SEPTEMBER 2009..........................................................................................................................................
www.ti.com
Table 1. ORDERING INFORMATION
T
A
SOIC – DW
–0°C to 70°C
SSOP – DB
TSSOP – PW
SOIC – DW
–40°C to 85°C
SSOP – DB
TSSOP – PW
(1)
(2)
PACKAGE
(1) (2)
ORDERABLE PART NUMBER
MAX3223ECDW
MAX3223ECDWR
MAX3223ECDB
MAX3223ECDBR
MAX3223ECPW
MAX3223ECPWR
MAX3223EIDW
MAX3223EIDWR
MAX3223EIDB
MAX3223EIDBR
MAX3223EIPW
MAX3223EIPWR
TOP-SIDE MARKING
MAX3223EC
MP223EC
MP223EC
MAX3223EI
MP223EI
MP223EI
Tube of 25
Reel of 2000
Tube of 70
Reel of 2000
Tube of 70
Reel of 2000
Tube of 25
Reel of 2000
Tube of 70
Reel of 2000
Tube of 70
Reel of 2000
Package drawings, thermal data, and symbolization are available at
www.ti.com/packaging.
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at
www.ti.com.
2
Submit Documentation Feedback
Product Folder Link(s):
MAX3223E
Copyright © 2006–2009, Texas Instruments Incorporated
MAX3223E
www.ti.com..........................................................................................................................................
SLLS707A – JANUARY 2006 – REVISED SEPTEMBER 2009
FUNCTION TABLES
ABC
EACH DRIVER
(1)
INPUTS
DIN
X
L
H
L
H
L
H
(1)
FORCEON
X
H
H
L
L
L
L
FORCEOFF
L
H
H
H
H
H
H
VALID RIN
RS-232 LEVEL
X
X
X
Yes
Yes
No
No
OUTPUT
DOUT
Z
H
L
H
L
Z
Z
DRIVER STATUS
Powered off
Normal operation with
auto-powerdown disabled
Normal operation with
auto-powerdown enabled
Powered off by
auto-powerdown feature
H = high level, L = low level, X = irrelevant, Z = high impedance
EACH RECEIVER
(1)
INPUTS
RIN
L
H
X
Open
(1)
EN
L
L
H
L
VALID RIN
RS-232 LEVEL
X
X
X
No
OUTPUT
DOUT
H
L
Z
H
H = high level, L = low level, X = irrelevant,
Z = high impedance (off),
Open = input disconnected or connected driver off
Copyright © 2006–2009, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Link(s):
MAX3223E
3
MAX3223E
SLLS707A – JANUARY 2006 – REVISED SEPTEMBER 2009..........................................................................................................................................
www.ti.com
LOGIC DIAGRAM (POSITIVE LOGIC)
DIN1
13
17
DOUT1
DIN2
12
8
DOUT2
FORCEOFF
FORCEON
20
14
Powerdown
11
INVALID
EN
ROUT1
1
15
16
RIN1
ROUT2
10
9
RIN2
Pin numbers are for the DB, DW, and PW packages.
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
MIN
V
CC
V+
V–
V+ – V–
V
I
V
O
Supply voltage range
Positive-output supply voltage range
Supply voltage difference
Input voltage range
Output voltage range
(2)
(2)
MAX
6
7
–7
13
6
25
13.2
V
CC
+ 0.3
70
58
83
150
UNIT
V
V
V
V
V
V
–0.3
–0.3
0.3
Driver (FORCEOFF, FORCEON, EN)
Receiver
Driver
Receiver (INVALID)
DB package
(4)
Negative-output supply voltage range
(2)
–0.3
–25
–13.2
–0.3
θ
JA
T
J
T
stg
(1)
(2)
(3)
(4)
Package thermal impedance
(3)
DW package
PW package
°C/W
°C
°C
Operating virtual junction temperature
Storage temperature range
–65
150
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltages are with respect to network GND.
Maximum power dissipation is a function of T
J
(max),
θ
JA
, and T
A
. The maximum allowable power dissipation at any allowable ambient
temperature is P
D
= (T
J
(max) – T
A
)/θ
JA
. Operating at the absolute maximum T
J
of 150°C can affect reliability.
The package thermal impedance is calculated in accordance with JESD 51-7.
4
Submit Documentation Feedback
Product Folder Link(s):
MAX3223E
Copyright © 2006–2009, Texas Instruments Incorporated
MAX3223E
www.ti.com..........................................................................................................................................
SLLS707A – JANUARY 2006 – REVISED SEPTEMBER 2009
RECOMMENDED OPERATING CONDITIONS
(1)
See
Figure 6
MIN
Supply voltage
V
IH
V
IL
V
I
T
A
(1)
Driver and control
high-level input voltage
Driver and control
low-level input voltage
Driver and control input voltage
Receiver input voltage
Operating free-air temperature
MAX3223EC
MAX3223EI
DIN, EN, FORCEOFF, FORCEON
DIN, EN, FORCEOFF, FORCEON
DIN, EN, FORCEOFF, FORCEON
0
–25
0
–40
V
CC
= 3.3 V
V
CC
= 5 V
V
CC
= 3.3 V
V
CC
= 5 V
3
4.5
2
2.4
0.8
5.5
25
70
85
NOM
3.3
5
MAX
3.6
5.5
UNIT
V
V
V
V
V
°C
Test conditions are C1–C4 = 0.1
μF
at V
CC
= 3.3 V ± 0.3 V; C1 = 0.047
μF,
C2–C4 = 0.33
μF
at V
CC
= 5 V ± 0.5 V.
ELECTRICAL CHARACTERISTICS
(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see
Figure 5)
PARAMETER
I
I
Input leakage
current
EN, FORCEOFF,
FORCEON
Auto-powerdown disabled
I
CC
Supply current
Powered off
Auto-powerdown enabled
(1)
(2)
V
CC
= 3.3 V or 5 V, T
A
= 25°C,
No load, FORCEOFF and FORCEON at V
CC
No load, FORCEOFF at GND
No load, FORCEOFF at V
CC
, FORCEON at
GND,
All RIN are open or grounded
TEST CONDITIONS
MIN
TYP
(2)
MAX
±1
1
10
10
UNIT
μA
mA
±0.01
0.3
1
1
μA
Test conditions are C1–C4 = 0.1
μF
at V
CC
= 3.3 V ± 0.3 V; C1 = 0.047
μF,
C2–C4 = 0.33
μF
at V
CC
= 5 V ± 0.5 V.
All typical values are at V
CC
= 3.3 V or V
CC
= 5 V, and T
A
= 25°C.
Copyright © 2006–2009, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Link(s):
MAX3223E
5
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