ISO7420E_1112 Datasheet, PDF (2/25 Pages) Texas Instruments – Low-Power Dual Channel Digital Isolators

ISO7420E, ISO7420FE, ISO7420FCC
ISO7421E, ISO7421FE, ISO7421FCC
SLLSE45D – DECEMBER 2010 – REVISED DECEMBER 2011
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
NAME
INA
INB
GND1
GND2
OUTA
OUTB
V_CC1
V_CC2
PIN
ISO7420x
2
3
4
5
7
6
1
8
PIN DESCRIPTIONS
ISO7421x
7
3
4
5
2
6
1
8
I/O
DESCRIPTION
I
Input, channel A
I
Input, channel B
–
Ground connection for V_CC1
–
Ground connection for V_CC2
O
Output, channel A
O
Output, channel B
–
Power supply, V_CC1
–
Power supply, V_CC2
INPUT
SIDE
V_CC
PU
PD
X
Table 1. FUNCTION TABLE⁽¹⁾
OUTPUT
SIDE
V_CC
PU
PU
PD
INPUT
INA, INB
H
L
Open
X
X
OUTPUT
OUTA, OUTB
ISO7420E / ISO7420Fx /
ISO7421E ISO7421Fx
H
H
L
L
H ⁽²⁾
L ⁽³⁾
H ⁽²⁾
L ⁽³⁾
Z
Z
(1) PU = Powered up (V_CC ≥ 3 V); PD = Powered down (V_CC ≤ 2.4 V);
X = Irrelevant; H = High level; L = Low level; Z = High Impedance
(2) In fail-safe condition, output defaults to high level
(3) In fail-safe condition, output defaults to low level
PRODUCT
ISO7420E
ISO7420FE
DATA
RATE
DEFAULT
OUTPUT
High
Low
ISO7420FCC ⁽¹⁾
ISO7421E
50 Mbps
ISO7421FE
Low
High
Low
ISO7421FCC ⁽¹⁾
Low
(1) Product Preview
AVAILABLE OPTIONS
INTEGRATED
NOISE FILTER
RATED T_A
No
Yes
–40°C to
125°C
No
Yes
CHANNEL
DIRECTION
Same
Opposite
MARKED
AS
SO7420
I7420F
7420FC
SO7421
I7421F
7421FC
ORDERING
NUMBER
ISO7420ED (rail)
ISO7420EDR (reel)
ISO7420FED (rail)
ISO7420FEDR (reel)
ISO7420FCCD (rail)
ISO7420FCCDR
(reel)
ISO7421ED (rail)
ISO7421EDR (reel)
ISO7421FED (rail)
ISO7421FEDR (reel)
ISO7421FCCD (rail)
ISO7421FCCDR
(reel)
2
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