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ADM3251EARWZ

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
Data Sheet ADM3251E
SPECIFICATIONS
All voltages are relative to their respective ground; all minimum/maximum specifications apply over the entire recommended operating
range; T
A
= 25°C and V
CC
= 5.0 V (dc-to-dc converter enabled), unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
DC CHARACTERISTICS
V
CC
Operating Voltage Range
4.5
V
DC-to-DC Converter Enable Threshold, V
CC(ENABLE)
1
4.5
V
DC-to-DC Converter Disable Threshold, V
CC(DISABLE)
1
3.7 V
DC-to-DC Converter Enabled
Input Supply Current, I
CC(ENABLE)
110 mA V
CC
= 5.5 V, no load
145 mA V
CC
= 5.5 V, R
L
= 3 kΩ
V
ISO
Output
2
5.0 V I
ISO
= 0 µA
LOGIC
Transmitter Input, T
IN
Logic Input Current, I
TIN
−10
+0.01
μA
Logic Low Input Threshold, V
TINL
0.3 V
CC
V
Logic High Input Threshold, V
TINH
0.7 V
CC
V
Receiver Output, R
OUT
Logic High Output, V
ROUTH
V
CC
− 0.1 V
CC
V I
ROUTH
= −20 μA
V
CC
− 0.5 V
CC
− 0.3 V I
ROUTH
= −4 mA
Logic Low Output, V
ROUTL
0.0 0.1 V I
ROUTH
= 20 μA
0.3 0.4 V I
ROUTH
= 4 mA
RS-232
Receiver, R
IN
EIA-232 Input Voltage Range
3
−30
V
EIA-232 Input Threshold Low 0.6 2.0 V
EIA-232 Input Threshold High 2.1 2.4 V
EIA-232 Input Hysteresis 0.1 V
EIA-232 Input Resistance 3 5 7 kΩ
Transmitter, T
OUT
Output Voltage Swing (RS-232) ±5 ±5.7 V R
L
= 3 kΩ to GND
Transmitter Output Resistance 300 Ω V
ISO
= 0 V
Output Short-Circuit Current (RS-232) ±12 mA
TIMING CHARACTERISTICS
Maximum Data Rate
460
kbps
R
L
= 3 kΩ to 7 kΩ, C
L
= 50 pF to 1000 pF
Receiver Propagation Delay
t
PHL
190 ns
t
PLH
135 ns
Transmitter Propagation Delay 650 ns R
L
= 3 kΩ, C
L
= 1000 pF
Transmitter Skew 80 ns
Receiver Skew 70 ns
Transition Region Slew Rate
3
5.5 10 30 V/μs
+3 V to −3 V or −3 V to +3 V, V
CC
= +3.3 V,
R
L
= 3 kΩ, C
L
= 1000 pF, T
A
= 25°C
AC SPECIFICATIONS
Output Rise/Fall Time, t
R
/t
F
(10% to 90%)
2.3
ns
C
L
= 15 pF, CMOS signal levels
Common-Mode Transient Immunity at Logic High Output
4
25
kV/μs
V
CM
= 1 kV, transient magnitude = 800 V
Common-Mode Transient Immunity at Logic Low Output
4
25 kV/μs V
CM
= 1 kV, transient magnitude = 800 V
ESD PROTECTION (R
IN
And T
OUT
PINS) ±15 kV Human body model air discharge
±8 kV Human body model contact discharge
1
Enable/disable threshold is the V
CC
voltage at which the internal dc-to-dc converter is enabled/disabled.
2
To maintain data sheet specifications, do not draw current from V
ISO
.
3
Guaranteed by design.
4
V
CM
is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. V
CM
is the common-mode potential
difference between the logic and bus sides. The transient magnitude is the range over which the common mode is slewed. The common-mode voltage slew rates
apply to both rising and falling common-mode voltage edges.
Rev. G | Page 3 of 16
ADM3251E Data Sheet
All voltages are relative to their respective ground; all minimum/maximum specifications apply over the entire recommended operating
range; T
A
= 25°C, V
CC
= 3.3 V (dc-to-dc converter disabled), and the secondary side is powered externally by V
ISO
= 3.3 V, unless
otherwise noted.
Table 2.
Parameter Min Typ Max Unit Test Conditions/Comments
DC CHARACTERISTICS
V
CC
Operating Voltage Range 3.0 3.7 V
DC-to-DC Converter Disable Threshold, V
CC(DISABLE)
1
3.7 V
DC-to-DC Converter Disabled
V
ISO
2
3.0 5.5 V
Primary Side Supply Input Current, I
CC(DISABLE)
2.5 mA No load
Secondary Side Supply Input Current, I
ISO(DISABLE)
12
mA
V
ISO
= 5.5 V, R
L
= 3 kΩ
Secondary Side Supply Input Current, I
ISO(DISABLE)
6.2
mA
R
L
= 3 kΩ
LOGIC
Transmitter Input, T
IN
Logic Input Current, I
TIN
−10 +0.01 +10 μA
Logic Low Input Threshold, V
TINL
0.3 V
CC
V
Logic High Input Threshold, V
TINH
0.7 V
CC
V
Receiver Output, R
OUT
Logic High Output, V
ROUTH
V
CC
− 0.1 V
CC
V I
ROUTH
= −20 μA
V
CC
− 0.5 V
CC
− 0.3 V I
ROUTH
= −4 mA
Logic Low Output, V
ROUTL
0.0
0.1
V
I
ROUTH
= 20 μA
0.3 0.4 I
ROUTH
= 4 mA
RS-232 V
Receiver, R
IN
EIA-232 Input Voltage Range
3
−30 +30 V
EIA-232 Input Threshold Low 0.6 1.3 V
EIA-232 Input Threshold High 1.6 2.4 V
EIA-232 Input Hysteresis 0.3 V
EIA-232 Input Resistance 3 5 7 kΩ
Transmitter, T
OUT
Output Voltage Swing (RS-232) ±5 ±5.7 V R
L
= 3 kΩ to GND
Transmitter Output Resistance
300
Ω
V
ISO
= 0 V
Output Short-Circuit Current (RS-232)
±11
mA
TIMING CHARACTERISTICS
Maximum Data Rate 460 kbps R
L
= 3 kΩ to 7 kΩ, C
L
= 50 pF to 1000 pF
Receiver Propagation Delay
t
PHL
190 ns
t
PLH
135 ns
Transmitter Propagation Delay 650 ns R
L
= 3 kΩ, C
L
= 1000 pF
Transmitter Skew 80 ns
Receiver Skew 55 ns
Transition Region Slew Rate
3
5.5 10 30 V/μs
+3 V to −3 V or −3 V to +3 V, V
CC
= 3.3 V,
R
L
= 3 kΩ, C
L
= 1000 pF, T
A
= 25°C
AC SPECIFICATIONS
Output Rise/Fall Time, t
R
/t
F
(10% to 90%) 2.3 ns C
L
= 15 pF, CMOS signal levels
Common-Mode Transient Immunity at Logic High Output
4
25 kV/μs V
CM
= 1 kV, transient magnitude = 800 V
Common-Mode Transient Immunity at Logic Low Output
4
25 kV/μs V
CM
= 1 kV, transient magnitude = 800 V
ESD PROTECTION (R
IN
AND T
OUT
PINS) ±15 kV Human body model air discharge
±8 kV Human body model contact discharge
1
Enable/disable threshold is the V
CC
voltage at which the internal dc-to-dc converter is enabled/disabled.
2
To maintain data sheet specifications, do not draw current from V
ISO
.
3
Guaranteed by design.
4
V
CM
is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. V
CM
is the common-mode potential
difference between the logic and bus sides. The transient magnitude is the range over which the common mode is slewed. The common-mode voltage slew rates
apply to both rising and falling common-mode voltage edges.
Rev. G | Page 4 of 16
Data Sheet ADM3251E
PACKAGE CHARACTERISTICS
Table 3.
Parameter Symbol Min Typ Max Unit Test Conditions
Resistance (Input-to-Output)
R
I-O
10
12
Ω
Capacitance (Input-to-Output) C
I-O
2.2 pF f = 1 MHz
Input Capacitance C
I
4.0 pF
IC Junction-to-Air Thermal Resistance θ
JA
47.05 °C/W
REGULATORY INFORMATION
Table 4.
UL
1
VDE
2
CSA
Recognized under 1577 Component
Recognition Program
Certified according to DIN EN 60747-5-2 (VDE
0884 Teil 2):2003-01
Approved under CSA Component Acceptance
Notice #5A
File E214100 File 2471900-4880-0001/123328 Basic Insulation per CSA 60950-1-07 and IEC
60950-1, 400 V rms (566 V peak) maximum
working voltage
File 2268268
1
In accordance with UL 1577, each ADM3251E is proof tested by applying an insulation test voltage ≥3000 V rms for 1 sec (current leakage detection limit = 6 μA).
2
Each ADM3251E is proof tested by applying an insulation test voltage ≥4000 V peak for 1 sec (partial discharge detection limit = 5 pC).
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 5.
Parameter Symbol Value Unit Conditions
Rated Dielectric Insulation Voltage 2500 V rms 1 minute duration
Minimum External Air Gap (Clearance) L(I01) 7.7 mm Measured from input terminals to output terminals,
shortest distance through air
Minimum External Tracking (Creepage) L(I02) 7.6 mm Measured from input terminals to output terminals,
shortest distance path along body
Minimum Internal Gap (Internal Clearance) 0.017 mm Distance through insulation
Tracking Resistance (Comparative Tracking Index) CTI >175 V DIN IEC 112/VDE 0303 Part 1
Isolation Group IIIa
Maximum Working Voltage Compatible with
50-Year Service Life
V
IORM
425 V peak Continuous peak voltage across the isolation barrier
Rev. G | Page 5 of 16
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

ADM3251EARWZ

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Digital Isolators Iso SGL CH Line Dvr/Rcvr
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