MAX3238IPWG4Q1 [TI]
具有 +/-15kV ESD 保护的汽车类 3V 至 5.5V 250kbps RS-232 线路驱动器/接收器 | PW | 28 | -40 to 85;
| 型号： | MAX3238IPWG4Q1 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 具有 +/-15kV ESD 保护的汽车类 3V 至 5.5V 250kbps RS-232 线路驱动器/接收器 | PW | 28 | -40 to 85 驱动 光电二极管 接口集成电路 驱动器 |
| 文件： | 总16页 (文件大小：375K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ꢀ ꢁꢂ ꢃꢄ ꢃꢅꢆ ꢇ ꢈ
ꢃ ꢆꢉ ꢊ ꢋ ꢌ ꢍꢌ ꢆꢉ ꢀ ꢎꢏꢊ ꢐꢑꢒ ꢁꢓꢓꢔ ꢏ ꢕꢖ ꢆꢄꢃ ꢄ ꢏ ꢐꢓꢔ ꢗꢕꢐ ꢉꢔ ꢕꢘꢕꢔ ꢑꢔ ꢐ ꢉ ꢔꢕ
ꢙ ꢐꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜꢀ ꢝ ꢞꢕꢋ ꢊ ꢔꢑ ꢊꢐ ꢋ ꢓ
ꢟ
SLLS569B − MAY 2003 − REVISED APRIL 2008
DB OR PW PACKAGE
(TOP VIEW)
D
Qualified for Automotive Applications
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D
1
C2+
C1+
V+
28
27
26
25
2
GND
C2−
V−
D
Meets or Exceeds Requirements of
TIA/EIA-232-F and ITU v.28 Standards
3
V
CC
4
C1−
5
DOUT1
DOUT2
DOUT3
RIN1
24 DIN1
23 DIN2
D
D
D
D
D
D
D
Operates With 3-V to 5.5-V V
Supply
CC
6
Operates Up To 250 kbit/s
7
22
21
20
19
18
17
16
15
DIN3
Five Drivers and Three Receivers
8
ROUT1
ROUT2
DIN4
Low Standby Current . . . 1 µA Typical
External Capacitors . . . 4 × 0.1 µF
Accepts 5-V Logic Input With 3.3-V Supply
9
RIN2
10
11
12
13
14
DOUT4
RIN3
ROUT3
DIN5
DOUT5
Always-Active Noninverting Receiver
Output (ROUT1B)
FORCEON
FORCEOFF
ROUT1B
INVALID
D
RS-232 Bus-Pin ESD Protection Exceeds
15 kV Using Human-Body Model (HBM)
description/ordering information
The MAX3238 consists of five line drivers, three line receivers, and a dual charge-pump circuit with 15-kV ESD
(HBM) 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 notebook and subnotebook computer
applications. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V
supply. In addition, the device includes an always-active noninverting output (ROUT1B), which allows
applications using the ring indicator to transmit data while the device is powered down. These devices operate
at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.
{
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
‡
PACKAGE
T
A
SSOP (DB)
Tape and reel
Tape and reel
MAX3238IDBRQ1
MAX3238IPWRQ1
MAX3238Q
MB3238Q
−40°C to 85°C
TSSOP (PW)
†
‡
For the most current package and ordering information, see the Package Option Addendum at
the end of this document, or see the TI web site at http://www.ti.com.
Package
drawings,
thermal
data,
and
symbolization
are
available
at
http://www.ti.com/packaging.
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.
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Copyright 2008, Texas Instruments Incorporated
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ꢀ ꢁ ꢂ ꢃꢄ ꢃ ꢅ ꢆꢇꢈ
ꢃꢆ ꢉ ꢊꢋ ꢌ ꢍ ꢌꢆꢉ ꢀ ꢎꢏꢊꢐ ꢑ ꢒꢁ ꢓꢓꢔ ꢏ ꢕꢖ ꢆꢄ ꢃ ꢄ ꢏ ꢐꢓꢔ ꢗꢕꢐ ꢉꢔ ꢕꢘꢕꢔ ꢑꢔꢐ ꢉꢔꢕ
ꢙꢐ ꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜ ꢀꢝ ꢞ ꢕꢋ ꢊꢔ ꢑꢊꢐ ꢋ ꢓ
ꢟ
SLLS569B − MAY 2003 − REVISED APRIL 2008
description/ordering information (continued)
Flexible control options for power management are featured when the serial port and driver inputs are inactive.
The auto-powerdown plus feature functions when FORCEON is low and FORCEOFF is high. During this mode
of operation, if the device does not sense valid signal transitions on all receiver and driver inputs for
approximately 30 s, the built-in charge pump and drivers are powered down, reducing the supply current to
1 µA. By disconnecting the serial port or placing the peripheral drivers off, auto-powerdown plus occurs if there
is no activity in the logic levels for the driver inputs. Auto-powerdown plus can be disabled when FORCEON
and FORCEOFF are high. With auto-powerdown plus enabled, the device automatically activates once a valid
signal is applied to any receiver or driver 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 all receiver input voltages are between −0.3 V and 0.3 V for more than 30µs. Refer to Figure 5 for receiver
input levels.
Function Tables
EACH DRIVER
INPUTS
OUTPUT
DOUT
TIME ELAPSED SINCE LAST
RIN OR DIN TRANSITION
DRIVER STATUS
DIN
FORCEON
FORCEOFF
X
L
X
H
H
L
L
X
Z
H
L
Powered off
H
H
H
H
H
H
X
Normal operation with
auto-powerdown plus disabled
H
L
X
<30 s
<30 s
>30 s
>30 s
H
L
Normal operation with
auto-powerdown plus enabled
H
L
L
L
Z
Z
Powered off by auto-powerdown
plus feature
H
L
H = high level, L = low level, X = irrelevant, Z = high impedance
EACH RECEIVER
INPUTS
TIME ELAPSED SINCE LAST RIN
OUTPUTS
RECEIVER STATUS
RIN1 RIN2−RIN3
ROUT1B ROUT
FORCEOFF
OR DIN TRANSITION
L
H
X
X
L
L
X
L
H
L
Z
Z
H
L
Powered off while
ROUT1B is active
X
L
L
H
H
H
H
H
<30 s
<30 s
<30 s
<30 s
>30 s
L
H
L
Normal operation with
auto-powerdown plus
disabled/enabled
H
L
H
H
L
H
L
H
H
Open
Open
H
H = high level, L = low level, X = irrelevant, Z = high impedance (off), Open = input disconnected or connected driver off
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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ꢙ ꢐꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜꢀ ꢝ ꢞꢕꢋ ꢊꢔ ꢑ ꢊꢐ ꢋ ꢓ
ꢟ
ꢃ
SLLS569B − MAY 2003 − REVISED APRIL 2008
logic diagram (positive logic)
24
5
DIN1
DOUT1
23
22
19
17
6
7
DIN2
DOUT2
DOUT3
DOUT4
DOUT5
DIN3
DIN4
DIN5
10
12
14
13
FORCEOFF
FORCEON
15
Auto-powerdown
Plus
INVALID
16
21
ROUT1B
ROUT1
8
RIN1
20
18
9
ROUT2
ROUT3
RIN2
RIN3
11
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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ꢙꢐ ꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜ ꢀꢝ ꢞ ꢕꢋ ꢊꢔ ꢑꢊꢐ ꢋ ꢓ
ꢟ
SLLS569B − MAY 2003 − REVISED APRIL 2008
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V
CC
Positive output supply voltage range, V+ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 7 V
Negative output supply voltage range, V− (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to −7 V
Supply voltage difference, V+ − V− (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 V
Input voltage range, V : Driver (FORCEOFF, FORCEON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V
I
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −25 V to 25 V
Output voltage range, V : Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −13.2 V to 13.2 V
O
Receiver (INVALID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to V
+ 0.3 V
CC
Package thermal impedance, θ (see Notes 2 and 3):DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . 62°C/W
JA
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . 62°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
stg
†
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.
NOTES: 1. All voltages are with respect to network GND.
2. Maximum power dissipation is a function of T (max), θ , and T . The maximum allowable power dissipation at any allowable
J
JA
A
ambient temperature is P = (T (max) − T )/θ . Operating at the absolute maximum T of 150°C can affect reliability.
D
J
A
JA
J
3. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 4 and Figure 6)
MIN NOM
MAX
3.6
UNIT
V
= 3.3 V
= 5 V
3
4.5
2
3.3
5
CC
CC
CC
CC
Supply voltage
V
V
V
V
5.5
= 3.3 V
= 5 V
V
IH
Driver and control high-level input voltage
V
DIN, FORCEOFF, FORCEON
2.4
V
V
V
Driver and control low-level input voltage
Driver and control input voltage
Receiver input voltage
DIN, FORCEOFF, FORCEON
DIN, FORCEOFF, FORCEON
0.8
5.5
25
V
V
IL
0
−25
−40
I
V
I
T
A
Operating free-air temperature
MAX3238I
85
°C
NOTE 4: Testing supply conditions are C1−C4 = 0.1 µF at V
CC
= 3.3 V 0.15 V; C1−C4 = 0.22 µF at V
= 3.3 V 0.3 V; and C1 = 0.047 µF
CC
and C2−C4 = 0.33 µF at V
= 5 V 0.5 V.
CC
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 6)
‡
PARAMETER
FORCEOFF, FORCEON
TEST CONDITIONS
MIN TYP
MAX
UNIT
I
I
Input leakage current
0.01
0.5
1
1
µA
Auto-powerdown plus
disabled
No load,
2
mA
FORCEOFF and FORCEON at V
CC
Supply current
Powered off
No load, FORCEOFF at GND
10
I
CC
(T = 25°C)
A
No load, FORCEOFF at V
FORCEON at GND,
All RIN are open or grounded
,
CC
µA
Auto-powerdown plus
enabled
1
10
‡
All typical values are at V
CC
= 3.3 V or V = 5 V, and T = 25°C.
CC A
NOTE 4: Testing supply conditions are C1−C4 = 0.1 µF at V
= 3.3 V 0.15 V; C1−C4 = 0.22 µF at V = 3.3 V 0.3 V; and C1 = 0.047 µF
CC
CC
and C2−C4 = 0.33 µF at V
CC
= 5 V 0.5 V.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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ꢙ ꢐꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜꢀ ꢝ ꢞꢕꢋ ꢊꢔ ꢑ ꢊꢐ ꢋ ꢓ
ꢟ
SLLS569B − MAY 2003 − REVISED APRIL 2008
DRIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 6)
†
PARAMETER
TEST CONDITIONS
All DOUT at R = 3 kΩ to GND
MIN TYP
MAX
UNIT
V
V
V
High-level output voltage
Low-level output voltage
High-level input current
Low-level input current
5
5.4
−5.4
0.01
0.01
35
OH
L
All DOUT at R = 3 kΩ to GND
−5
V
OL
L
I
IH
V = V
I CC
1
1
µA
µA
I
IL
V at GND
I
V
V
V
= 3.6 V,
V
O
V
O
V
O
V
O
= 0 V
= 0 V
60
CC
CC
CC
‡
I
mA
Short-circuit output current
OS
= 5.5 V,
40
100
r
Output resistance
, V+, and V− = 0 V,
=
=
2 V
12 V,
300
10M
Ω
o
I
off
Output leakage current
FORCEOFF = GND,
V
CC
= 0 to 5.5 V
25
µA
†
‡
All typical values are at V
CC
= 3.3 V or V
CC
= 5 V, and T = 25°C.
A
Short-circuit durations should be controlled to prevent exceeding the device absolute power-dissipation ratings, and not more than one output
should be shorted at a time.
NOTE 4: Testing supply conditions are C1−C4 = 0.1 µF at V
= 3.3 V 0.15 V; C1−C4 = 0.22 µF at V = 3.3 V 0.3 V; and C1 = 0.047 µF
CC
CC
and C2−C4 = 0.33 µF at V
CC
= 5 V 0.5 V.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 6)
†
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
UNIT
C
= 1000 pF,
R
L
= 3 kΩ,
See Figure 1
L
Maximum data rate
150
250
100
kbit/s
One DOUT switching,
R
= 3 kΩ to 7 kΩ,
L
§
t
Pulse skew
C
= 150 pF to 2500 pF
ns
sk(p)
L
See Figure 2
C
C
= 150 pF to 1000 pF
6
4
30
30
Slew rate, transition region
(see Figure 1)
V
R
= 3.3 V,
= 3 kΩ to 7 kΩ
L
L
CC
L
SR(tr)
V/µs
= 150 pF to 2500 pF
†
§
All typical values are at V
Pulse skew is defined as |t
= 3.3 V or V = 5 V, and T = 25°C.
CC A
CC
− t
| of each channel of the same device.
PLH PHL
NOTE 4: Testing supply conditions are C1−C4 = 0.1 µF at V
= 3.3 V 0.15 V; C1−C4 = 0.22 µF at V
= 3.3 V 0.3 V; and C1 = 0.047 µF
CC
CC
and C2−C4 = 0.33 µF at V
CC
= 5 V 0.5 V.
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ꢀ ꢁ ꢂ ꢃꢄ ꢃ ꢅ ꢆꢇꢈ
ꢃꢆ ꢉ ꢊꢋ ꢌ ꢍ ꢌꢆꢉ ꢀ ꢎꢏꢊꢐ ꢑ ꢒꢁ ꢓꢓꢔ ꢏ ꢕꢖ ꢆꢄ ꢃ ꢄ ꢏ ꢐꢓꢔ ꢗꢕꢐ ꢉꢔ ꢕꢘꢕꢔ ꢑꢔꢐ ꢉꢔꢕ
ꢙꢐ ꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜ ꢀꢝ ꢞ ꢕꢋ ꢊꢔ ꢑꢊꢐ ꢋ ꢓ
ꢟ
SLLS569B − MAY 2003 − REVISED APRIL 2008
RECEIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 6)
†
PARAMETER
High-level output voltage
Low-level output voltage
TEST CONDITIONS
MIN
− 0.6 V
TYP
MAX
UNIT
V
V
V
I
I
= −1 mA
= 1.6 mA
V
CC
V − 0.1 V
CC
OH
OH
0.4
2.4
2.4
V
OL
OL
V
V
V
V
= 3.3 V
= 5 V
1.5
1.8
1.2
1.5
0.3
0.05
5
CC
CC
CC
CC
V
IT+
Positive-going input threshold voltage
Negative-going input threshold voltage
V
V
= 3.3 V
= 5 V
0.6
0.8
V
V
IT−
Input hysteresis (V
IT+
− V
)
V
hys
IT−
I
off
Output leakage current (except ROUT1B)
Input resistance
FORCEOFF = 0 V
V = 3 V to 25 V
10
7
µA
kΩ
r
3
i
I
†
All typical values are at V
CC
= 3.3 V or V = 5 V, and T = 25°C.
CC A
NOTE 4: Testing supply conditions are C1−C4 = 0.1 µF at V
= 3.3 V 0.15 V; C1−C4 = 0.22 µF at V = 3.3 V 0.3 V; and C1 = 0.047 µF
CC
CC
and C2−C4 = 0.33 µF at V
CC
= 5 V 0.5 V.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4)
†
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
UNIT
ns
t
t
t
t
t
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
Output enable time
150
150
200
200
50
PLH
PHL
en
C
C
= 150 pF, See Figure 3
L
L
ns
ns
= 150 pF, R = 3 kΩ, See Figure 4
L
Output disable time
ns
dis
‡
Pulse skew
See Figure 3
= 5 V, and T = 25°C.
ns
sk(p)
†
‡
All typical values are at V
Pulse skew is defined as |t
NOTE 4: Testing supply conditions are C1−C4 = 0.1 µF at V
= 3.3 V or V
CC
PLH PHL
CC
A
− t
| of each channel of the same device.
= 3.3 V 0.15 V; C1−C4 = 0.22 µF at V
= 3.3 V 0.3 V; and C1 = 0.047 µF
CC
CC
and C2−C4 = 0.33 µF at V
CC
= 5 V 0.5 V.
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ꢀ ꢁꢂ ꢃꢄ ꢃꢅꢆ ꢇ ꢈ
ꢃ ꢆꢉ ꢊ ꢋ ꢌ ꢍꢌ ꢆꢉ ꢀ ꢎꢏꢊ ꢐꢑꢒ ꢁꢓꢓꢔꢏ ꢕꢖ ꢆꢄꢃ ꢄ ꢏ ꢐꢓꢔ ꢗꢕꢐ ꢉꢔ ꢕꢘꢕꢔ ꢑꢔ ꢐ ꢉ ꢔꢕ
ꢙ ꢐꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜꢀ ꢝ ꢞꢕꢋ ꢊꢔ ꢑ ꢊꢐ ꢋ ꢓ
ꢟ
SLLS569B − MAY 2003 − REVISED APRIL 2008
AUTO-POWERDOWN PLUS SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 5)
†
TYP
PARAMETER
TEST CONDITIONS
FORCEON = GND,
FORCEOFF = V
MIN
MAX
UNIT
Receiver input threshold
for INVALID high-level output voltage
V
V
V
V
V
2.7
V
T+(valid)
T−(valid)
T(invalid)
OH
CC
FORCEON = GND,
FORCEOFF = V
Receiver input threshold
for INVALID high-level output voltage
−2.7
−0.3
V
V
V
V
CC
FORCEON = GND,
FORCEOFF = V
Receiver input threshold
for INVALID low-level output voltage
0.3
0.4
CC
= −1 mA, FORCEON = GND,
I
OH
FORCEOFF = V
INVALID high-level output voltage
INVALID low-level output voltage
V
− 0.6
CC
CC
= 1.6 mA, FORCEON = GND,
I
OL
FORCEOFF = V
OL
CC
†
All typical values are at V
CC
= 3.3 V or V = 5 V, and T = 25°C.
CC A
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 5)
†
PARAMETER
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
Supply enable time
MIN TYP
MAX
UNIT
µs
t
0.1
50
25
30
valid
µs
t
t
t
invalid
µs
en
Receiver or driver edge to auto-powerdown plus
15
60
s
dis
†
All typical values are at V
= 3.3 V or V = 5 V, and T = 25°C.
CC A
CC
PARAMETER MEASUREMENT INFORMATION
3 V
0 V
Input
RS-232
Output
Generator
(see Note B)
50 Ω
t
t
TLH
THL
C
L
R
L
(see Note A)
V
OH
OL
3 V
3 V
−3 V
3 V
Output
−3 V
FORCEOFF
V
6 V
tTHL or tTLH
SR(tr) +
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A.
C includes probe and jig capacitance.
L
B. The pulse generator has the following characteristics: PRR = 250 kbit/s, Z = 50 Ω, 50% duty cycle, t ≤ 10 ns, t ≤ 10 ns.
O
r
f
Figure 1. Driver Slew Rate
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ꢀ ꢁ ꢂ ꢃꢄ ꢃ ꢅ ꢆꢇꢈ
ꢃꢆ ꢉ ꢊꢋ ꢌ ꢍ ꢌꢆꢉ ꢀ ꢎꢏꢊꢐ ꢑ ꢒꢁ ꢓꢓꢔ ꢏ ꢕꢖ ꢆꢄ ꢃ ꢄ ꢏ ꢐꢓꢔ ꢗꢕꢐ ꢉꢔ ꢕꢘꢕꢔ ꢑꢔꢐ ꢉꢔꢕ
ꢙꢐ ꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜ ꢀꢝ ꢞ ꢕꢋ ꢊꢔ ꢑꢊꢐ ꢋ ꢓ
ꢟ
SLLS569B − MAY 2003 − REVISED APRIL 2008
PARAMETER MEASUREMENT INFORMATION
3 V
0 V
Input
1.5 V
1.5 V
RS-232
Output
Generator
(see Note B)
50 Ω
C
t
t
PLH
L
PHL
R
L
(see Note A)
V
V
OH
3 V
FORCEOFF
50%
50%
Output
OL
TEST CIRCUIT
C includes probe and jig capacitance.
L
VOLTAGE WAVEFORMS
NOTES: A.
B. The pulse generator has the following characteristics: PRR = 250 kbit/s, Z = 50 Ω, 50% duty cycle, t ≤ 10 ns, t ≤ 10 ns.
O
r
f
Figure 2. Driver Pulse Skew
3 V or 0 V
FORCEON
3 V
−3 V
Input
1.5 V
1.5 V
Output
Generator
(see Note B)
t
t
PLH
PHL
50 Ω
C
L
(see Note A)
3 V
V
V
OH
FORCEOFF
50%
50%
Output
OL
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A.
C includes probe and jig capacitance.
L
B. The pulse generator has the following characteristics: Z = 50 Ω, 50% duty cycle, t ≤ 10 ns, t ≤ 10 ns.
O
r
f
Figure 3. Receiver Propagation Delay Times
3 V
Input
1.5 V
1.5 V
V
CC
S1
GND
3 V or 0 V
FORCEON
0 V
t
PHZ
R
(S1 at GND)
L
V
OH
3 V or 0 V
Output
50%
Output
0.3 V
C
L
(see Note A)
FORCEOFF
50 Ω
t
t
PLZ
(S1 at V
PZL
(S1 at V
CC
)
)
Generator
CC
(see Note B)
0.3 V
Output
50%
V
OL
TEST CIRCUIT
C includes probe and jig capacitance.
L
VOLTAGE WAVEFORMS
NOTES: A.
B. The pulse generator has the following characteristics: Z = 50 Ω, 50% duty cycle, t ≤ 10 ns, t ≤ 10 ns.
O
r
f
C.
D.
t
and t
are the same as t
.
PLZ
PZL
PHZ
PZH
dis
t
and t
are the same as t
.
en
Figure 4. Receiver Enable and Disable Times
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ꢀ ꢁꢂ ꢃꢄ ꢃꢅꢆ ꢇ ꢈ
ꢃ ꢆꢉ ꢊ ꢋ ꢌ ꢍꢌ ꢆꢉ ꢀ ꢎꢏꢊ ꢐꢑꢒ ꢁꢓꢓꢔꢏ ꢕꢖ ꢆꢄꢃ ꢄ ꢏ ꢐꢓꢔ ꢗꢕꢐ ꢉꢔ ꢕꢘꢕꢔ ꢑꢔ ꢐ ꢉ ꢔꢕ
ꢙ ꢐꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜꢀ ꢝ ꢞꢕꢋ ꢊꢔ ꢑ ꢊꢐ ꢋ ꢓ
ꢟ
SLLS569B − MAY 2003 − REVISED APRIL 2008
PARAMETER MEASUREMENT INFORMATION
Valid RS-232 Level, INVALID High
ROUT
2.7 V
0.3 V
Generator
(see Note B)
50 Ω
Indeterminate
If Signal Remains Within This Region
For More Than 30 µs, INVALID Is Low
0 V
†
−0.3 V
Indeterminate
Auto-
powerdown
Plus
INVALID
= 30 pF
−2.7 V
C
L
Valid RS-232 Level, INVALID High
(see Note A)
†
Auto-powerdown plus disables drivers and reduces
supply current to 1 µA.
FORCEOFF
FORCEON
DIN
DOUT
TEST CIRCUIT
NOTES: A.
C
includes probe and jig capacitance.
L
B. The pulse generator has the following
characteristics: PRR = 5 kbit/s, Z = 50 Ω,
O
50% duty cycle, t ≤ 10 ns, t ≤ 10 ns.
r
f
3 V
2.7 V
Receiver
Input
0 V
0 V
−2.7 V
−3 V
t
invalid
t
valid
INVALID
Output
V
CC
50%
50%
0 V
3 V to 5 V
Driver
Input
50%
50%
0 V
≈ 5.5 V
Driver
Output
≈ −5.5 V
t
t
dis
dis
t
t
en
en
V+
V+
V+ −0.3 V
Supply
Voltages
V− +0.3 V
V−
V−
Voltage Waveforms and Timing Diagrams
Figure 5. INVALID Propagation-Delay Times and Supply-Enabling Time
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ꢀ ꢁ ꢂ ꢃꢄ ꢃ ꢅ ꢆꢇꢈ
ꢃꢆ ꢉ ꢊꢋ ꢌ ꢍ ꢌꢆꢉ ꢀ ꢎꢏꢊꢐ ꢑ ꢒꢁ ꢓꢓꢔ ꢏ ꢕꢖ ꢆꢄ ꢃ ꢄ ꢏ ꢐꢓꢔ ꢗꢕꢐ ꢉꢔ ꢕꢘꢕꢔ ꢑꢔꢐ ꢉꢔꢕ
ꢙꢐ ꢊ ꢒ ꢈꢌ ꢆꢚ ꢉ ꢔꢖ ꢗ ꢛꢒꢜ ꢀꢝ ꢞ ꢕꢋ ꢊꢔ ꢑꢊꢐ ꢋ ꢓ
ꢟ
SLLS569B − MAY 2003 − REVISED APRIL 2008
APPLICATION INFORMATION
+
C
= 0.1 µF
BYPASS
−
28
27
C1+
1
2
C2+
V+
+
−
+
GND
†
C3
C2
+
−
−
C1
3
4
26
25
24
C2−
V−
V
CC
+
−
C1−
C4
5
6
7
8
9
DIN1
DIN2
DIN3
DOUT1
DOUT2
23
22
21
20
DOUT3
RIN1
ROUT1
ROUT2
RS-232 Port
RIN2
Logic I/Os
5 kΩ
5 kΩ
10
11
19
18
DOUT4
RIN3
DIN4
ROUT3
12
17
16
DOUT5
DIN5
ROUT1B
5 kΩ
Auto-
powerdown
Plus
13
14
15
FORCEON
FORCEOFF
INVALID
†
C3 can be connected to V
or GND.
CC
NOTE A: Resistor values shown are nominal.
V
CC
vs CAPACITOR VALUES
V
CC
C1
C2, C3, and C4
3.3 V 0.15 V
3.3 V 0.3 V
5 V 0.5 V
0.1 µF
0.22 µF
0.047 µF
0.22 µF
0.1 µF
0.22 µF
0.33 µF
1 µF
3 V to 5.5 V
Figure 6. Typical Operating Circuit and Capacitor Values
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
1-Jun-2023
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
(6)
MAX3238IPWG4Q1
MAX3238IPWQ1
LIFEBUY
LIFEBUY
LIFEBUY
TSSOP
TSSOP
TSSOP
PW
PW
PW
28
28
28
50
50
RoHS & Green
RoHS & Green
NIPDAU
NIPDAU
NIPDAU
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
-40 to 85
-40 to 85
-40 to 85
MB3238Q
MB3238Q
MB3238Q
MAX3238IPWRG4Q1
2000 RoHS & Green
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
1-Jun-2023
OTHER QUALIFIED VERSIONS OF MAX3238-Q1 :
Catalog : MAX3238
•
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
•
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
24-Apr-2022
TUBE
*All dimensions are nominal
Device
Package Name Package Type
Pins
SPQ
L (mm)
W (mm)
T (µm)
B (mm)
MAX3238IPWG4Q1
MAX3238IPWQ1
PW
PW
TSSOP
TSSOP
28
28
50
50
530
530
10.2
10.2
3600
3600
3.5
3.5
Pack Materials-Page 1
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