MDC3105 ON Semiconductor, MDC3105 Datasheet - Page 9

• Manufacturer Part Number: MDC3105
• Description: 5 V Inductive Load Driver
• Manufacturer: ON Semiconductor

Figure 14. A 140 mW, 5.0 V Relay with TTL Interface
74LS04
+4.5 TO +5.5 Vdc
Max Continuous Current Calculation
for TX2−5V Relay, R1 = 178 W Nominal @ R
Assuming ±10% Make Tolerance,
R1 = 178 W * 0.9 = 160 W Min @ T
T
R1 = 160 W * [1+(0.004) * (−40°−25°)] = 118 W Min @ −40°C
I
O
C
Max = (5.5 V Max − 0.25V) /118 W = 45 mA
for Annealed Copper Wire is 0.4%/°C
BAL99LT1
V
in
(1)
MDC3105LT1
AROMAT
GND (2)
TX2−5V
V
A
out
= 25°C
(3)
+
−
A
= 25°C
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MDC3105
9
+4.5 TO +5.5 Vdc
EQUIVALENT
74HC04 OR
Figure 15. A Quad 5.0 V, 360 mW Coil Relay Bank
AROMAT
JS1E−5V
AROMAT
JS1E−5V
−
+
+
−
MDC3105LT1
V
out
(3)
AROMAT
JS1E−5V
AROMAT
JS1E−5V
+
+
−
−