NUD3105D_06 Datasheet, PDF (6/8 Pages) ON Semiconductor – Integrated Relay, Inductive Load Driver

NUD3105D
Designing with this Data Sheet
1. Determine the maximum inductive load current (at
max V_CC, min coil resistance & usually minimum
temperature) that the NUD3105D will have to
drive and make sure it is less than the max rated
current.
2. For pulsed operation, use the Transient Thermal
Response of Figure 11 and the instructions with it
to determine the maximum limit on transistor
power dissipation for the desired duty cycle and
temperature range.
3. Use Figures 10 and 11 with the SOA notes to
insure that instantaneous operation does not push
the device beyond the limits of the SOA plot.
4. Verify that the circuit driving the gate will meet
the V_GS(th) from the Electrical Characteristics
table.
5. Using the max output current calculated in step 1,
check Figure 7 to insure that the range of Zener
clamp voltage over temperature will satisfy all
system & EMI requirements.
6. Use I_GSS and I_DSS from the Electrical
Characteristics table to insure that “OFF” state
leakage over temperature and voltage extremes
does not violate any system requirements.
7. Review circuit operation and insure none of the
device max ratings are being exceeded.
+3.0 ≤ V_DD ≤ +3.75 Vdc
APPLICATIONS DIAGRAMS
+4.5 ≤ V_CC ≤ +5.5 Vdc
++
V_in (2)
V_out (6)
NUD3105DDMT1
V_out (3)
V_in (5)
GND (1)
GND (4)
Figure 12. A 200 mW, 5.0 V Dual Coil Latching Relay Application
with 3.0 V Level Translating Interface
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