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Numéro de référence | NM485D6S5MC | ||
Description | Isolated RS485 Driver DC/DC | ||
Fabricant | muRata | ||
Logo | |||
1 Page
www.murata-ps.com
NM485D6S5MC
Isolated RS485 Driver DC/DC
6V
6V
Isolated DC-DC Power Supply 0V
-6V
5V
Regulator
0V
5V regulated
5V
0V
-6V
FEATURES
UL60950 recognition pending for 250Vrms
reinforced insulation
ANSI/AAMI ES60601-1, 2 MOOPs, 1 MOPP
recognition pending
Patents pending
SMD compatible
+6V, -6V unregulated and +5V regulated
isolated outputs
Differential driver and receiver
500kbps data rate
Complies with ANSI TIA/EIA RS-485-A-1998
and ISO 8482: 1987(E)
Industrial temperature range -40°C to
+85°C
Tested at 3000Vac rms ‘Hi Pot Test’
PRODUCT OVERVIEW
The NM485D6S5MC is a low power electrically
isolated differential driver and receiver designed
for bi-directional data communication or multipoint
bus transmission. The device combines a tri-state
differential line driver and a differential input line
receiver. The driver and receiver have active high
and active low enables, respectively, which can be
connected together to function as direction control.
No external components are needed as a single
5V supply powers all functions either side of the
isolation boundary. NM485D655MC also provides
a regulated 5V, unregulated 6V and -6V isolated
supply’s for system use.
Vcc
0V
input lines
output lines
Isolated 485 Tranceiver
3.3V
Regulator
output lines
input lines
SELECTION GUIDE
Order Code1
NM485D6S5MC
MODULE CHARACTERISTICS
DRIVER
Parameter
Differential Output
Voltages
Short Circuit Output
Current
Complementary
Output States
Common-mode
Output Voltages
Complementary
Output States
Input Threshold Low
Test conditions
Loaded RL = 100Ω (RS-422), See Figure 1
Loaded RL = 54Ω (RS-485)
RL = 54Ω or 100Ω, see figure 1
RL = 54Ω or 100Ω, see figure 1
RL = 54Ω or 100Ω, see figure 1
Input Threshold High
Input Current
RECEIVER2
Parameter
Differential Input
Threshold Voltages
Input Voltages
Hysteresis
Input Current (A, B)
Line Input Resistance
Tristate Leakage
Current
Output Voltage Low
Test conditions
-7V < VCM < +12V
VOC = 0V
-7V < VCM < +12V
Output Voltage High
Short-Circuit Current
Common-Mode
Transient Immunity
VCM = 1 kV, transient magnitude = 800V
ABSOLUTE MAXIMUM RATINGS
Supply voltage VCC with respect to pin 11
Bus Terminal Voltages
Logic Terminal Voltage
Data transmission rate
Min. Typ. Max. Units Symbol
2.0
3.6 V
VOD
1.5 3.6
250 mA
IOS
0.2 V Δ |VOD|
3.0 V
VOC
0.25 x
Vcc
-10 +0.01
0.2
0.7 x
VCC
+10
V
V
V
μA
Δ |VOC|
VIL
VIH
II
Min. Typ. Max. Units Symbol
-200 -125 -30 mV
VTH
15 mV VHYS
-100
+125 μA
II
96 kΩ RIN
±1 μA
IOZR
0.2 0.4
Vcc - Vcc -
0.3 0.2
100
V VOLRxD
V VOHRxD
mA
25 KV/μS
6V
-9V to +14V
-0.5V to Vcc +0.5V
500Kbps
For full details go to
www.murata-ps.com/rohs
1. Components are supplied in tape and reel packaging, please refer to tape and reel specification section. Orderable part numbers are
NM485D6S5MC-R7 (80 pieces per reel), or NM485D6S5MC-R13 (350 pieces per reel).
2. VCM 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.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
www.murata-ps.com/support
KDC_NM485D6S5MC.A01 age 1 of 11
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Pages | Pages 11 | ||
Télécharger | [ NM485D6S5MC ] |
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