HD29051
Dual Differential Line Drivers/ReceiversWith 3 State Outputs
REJ03D0305–0300Z
(Previous ADE-205-035A (Z))
Rev.3.00
Jul.16.2004
Description
The HD29051 features differential line drivers/receivers with three state output designed to meet the spec of EIA RS-
422A and 423A. Each device has two drivers/receivers in a 16 pin package.
The device becomes in enable state when active high for a driver and active low for a receiver.
Features
Driver
•
Built in current restriction when short circuit
•
Power up/down protection.
•
High output current
Receiver
•
Input hysteresis (Typ. 50 mV)
•
In phase input voltage ±200 mV of input sensitivity in the range –7 to +12 V.
•
Ordering Information
Part Name
HD29051P
Package Type
DILP-16 pin
Package Code
DP-16E, -16FV
P
Package
Abbreviation
—
Taping Abbreviation
(Quantity)
I
OH
= –40 mA
I
OL
= 40 mA
Pin Arrangement
R1B 1
R1A 2
R1Y 3
D1 Enable 4
R2Y 5
R2A 6
R2B 7
GND 8
16 V
CC
15 D1A
14 D1Y
13 D1Z
12 D2 Enable
11 D2Z
10 D2Y
9 D2A
(Top view)
Rev.3.00, Jul.16.2004, page 1 of 10
HD29051
Function Table
Drivers
Input A
L
H
X
H
L
Z
X
?
:
:
:
:
:
H
H
L
High level
Low level
High impedance
Immaterial
Irrelevant
Enable
L
H
Z
Output Y
H
L
Z
Output Z
Receivers
Differential Input A – B
V
ID
≥
0.2 V
–0.2 V < V
ID
< 0.2 V
V
ID
≤
–0.2 V
Output Y
H
?
L
Absolute Maximum Ratings
Item
Supply Voltage*
1
3
Symbol
V
CC
V
IN
V
ID
I
O
V
IE
V
IN
V
O
Topr
Tstg
7
±25
±25
50
5.5
Ratings
V
V
V
mA
V
V
V
°C
°C
Unit
Input Voltage A, B*
Differential Input Voltage*
2
*
3
Output Current*
3
Enable Input Voltage
Input Voltage*
4
Output Applied Voltage*
4
*
5
Operating Temperature Range
Storage Temperature Range
5.5
–1.0 to 7.0
0 to 70
–65 to 150
Notes: 1. All voltage values except for differential input voltage are with respect to network ground terminal.
2. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting
input.
3. Only receiver
4. Only driver
5. Z state
6. The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two
of which may be realized at the same time.
Recommended Operating Conditions
Item
Supply Voltage
In Phase Input Voltage*
Differential Input Voltage*
1
Enable Input Voltage
Input Voltage*
2
Operating Temperature
Notes: 1. Only receiver
2. Only driver
1
Symbol
V
CC
V
IC
V
ID
V
IE
V
IN
Topr
4.75
–7.0
–6.0
0
0
0
Min
5.0
—
—
—
—
25
Typ
5.25
12
6.0
5.25
5.25
70
Max
V
V
V
V
V
°C
Unit
Rev.3.00, Jul.16.2004, page 2 of 10
HD29051
Electrical Characteristics
(Ta = 0 to +70°C)
Driver
Item
Input Voltage
Input Clamp Voltage
Output Voltage
Symbol
V
IHD
V
ILD
V
IKD
V
OHD
V
OLD
Output Leak Current
I
OZD
Min
2.0
—
—
2.5
2.4
—
—
–100
–100
I
O(Off)
Input Current
I
ID
I
IHD
I
ILD
Differential Output Voltage
∆
|V
OC
|
|V
OD2
|
∆
|V
OD
|
I
OSD
—
—
—
—
—
—
2.0
—
–30
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Max
—
0.8
–1.5
—
—
0.45
0.5
100
100
–100
100
100
20
–360
0.4
—
0.4
–150
Unit
V
V
V
V
V
V
V
µA
µA
µA
µA
µA
µA
µA
V
V
V
mA
V
CC
= 5.25 V, V
O
= 0 V
V
CC
= 4.75 V, I
I
= –18 mA
V
CC
= 4.75 V, I
OH
= –20 mA
V
CC
= 4.75 V, I
OH
= –40 mA
V
CC
= 4.75 V, I
OL
= 20 mA
V
CC
= 4.75 V, I
OL
= 40 mA
V
CC
= 5.25 V, V
O
= 0.5 V
Enable = 0.8 V
V
CC
= 5.25 V, V
O
= 2.7 V
Enable = 0.8 V
V
CC
= 0 V, V
O
= –0.25 V
V
CC
= 0 V, V
O
= 6.0 V
V
CC
= 5.25 V, V
I
= 5.25 V
V
CC
= 5.25 V, V
I
= 2.7 V
V
CC
= 5.25 V, V
I
= 0.4 V
Conditions
Short Circuit Output
Current*
1
Electrical Characteristics
(Ta = 0 to +70°C)
Receiver
Item
Symbol
Min
—
–0.2
—
—
2.7
—
–15
Typ
—
—
—
—
—
—
—
Max
0.2
—
1.0
–0.8
—
0.45
–85
Unit
V
V
mA
mA
V
V
mA
Conditions
V
O
≥
2.7 V –7.0 V < V
IC
< 12 V
V
O
≤
0.45 V, –7.0 V < V
IC
< 12 V
V
IN
≤
V V, 0 V
= 12
CC
≤
5.25 V
V
IN
≤
V V, 0 V
= –7
CC
≤
5.25 V
V
CC
= 4.75 V, I
O
= –400 mA
V
ID
= 0.4 V, –7.0 V < V
IC
< 12 V
V
CC
= 4.75 V, I
O
= 8.0 mA
V
ID
= –0.4 V, –7.0 V < V
IC
< 12 V
V
CC
= 5.25 V, V
O
= 0 V V
ID
= 3.0 V
Differential Input Threshold V
THR
Voltage*
2
Input Current
Output Voltage
I
IBR
V
OHR
V
OLR
Short Circuit Output
Current*
1
I
OSR
Supply
Item
Symbol
Min
Typ
3
Max
Unit
Conditions
Supply Current
I
CC
—
55*
80
mA
V
CC
= 5.25 V
Notes: 1. Not more than one output should be shorted at a time, and duration of the short circuit should not exceed one
second.
2. In this table, only the threshold voltage is expressed in algebra.
3. All typical values are at V
CC
= 5V, Ta = 25°C.
Rev.3.00, Jul.16.2004, page 3 of 10
HD29051
Switching Characteristics
(Ta = 25°C, V
CC
= 5 V)
Driver
Item
Propagation Delay Time
Symbol
t
PLHD
t
PHLD
Propagation Delay Time
Difference
Output Enable Time
Output Disable Time
t
SKD
*
t
ZHD
t
ZLD
t
HZD
t
LZD
1
Min
—
—
—
—
—
—
—
Typ
—
—
—
—
—
—
—
Max
20
20
4
20
35
20
25
Unit
ns
ns
ns
ns
ns
ns
ns
Conditions
C
L
= 30 pF, R
L
= 75
Ω
to GND
R
L
= 180
Ω
to V
CC
C
L
= 30 pF, R
L
= 75
Ω
to GND
R
L
= 180
Ω
to V
CC
C
L
= 30 pF, R
L
= 75
Ω
to GND
R
L
= 180
Ω
to V
CC
C
L
= 30 pF, R
L
= 75
Ω
to GND
C
L
= 30 pF, R
L
= 180
Ω
to V
CC
C
L
= 10 pF, R
L
= 75
Ω
to GND
C
L
= 10 pF, R
L
= 180
Ω
to V
CC
Receiver
Item
Propagation Delay Time
Note:
Symbol
t
PLHR
t
PHLR
Min
—
—
Typ
—
—
Max
40
40
Unit
ns
ns
C
L
= 15 pF
C
L
= 15 pF
Conditions
1. t
SKD
= |t
PLHD
– t
PHLD
|
DC Test (|V
OD2
|,
∆
|V
OD
|, V
OC
,
∆
|V
OC
|)
|V
OD2
|,
∆
|V
OD
| Test
Y
V
OD
2
Z
50
Ω
50
Ω
V
OC
,
∆
|V
OC
| Test
Y
R
Z
50
Ω
50
Ω
V
OC
Note:
∆
|V
OD
| and
∆
|V
OC
| indicate the differences of voltage from the former states when Y and Z outputs
are inversed.
∆
|V
OD
| = ||V
OD2
| – |V
OD2
||
∆
|V
OC
| = |V
OC
– V
OC
|
Rev.3.00, Jul.16.2004, page 4 of 10
HD29051
1. t
PLHD
, t
PHLD
Test circuit
3V
Enable
5V
Input
Output
R
L
=
180
Ω
C
L
=
30 pF
*2
R
L
=
75
Ω
Pulse
Generator
*1
A
Y
Z
Waveforms
t
r
Input A
10 %
90 %
1.3 V
t
PLHD
Output Y
1.3 V
90 %
1.3 V
t
f
3V
10 %
t
PHLD
V
OH
1.3 V
V
OL
t
PHLD
1.3 V
t
SKD
t
PLHD
V
OH
Output Z
1.3 V
t
SKD
V
OL
0V
Rev.3.00, Jul.16.2004, page 5 of 10
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