lm5110-3sdx National Semiconductor Corporation, lm5110-3sdx Datasheet - Page 11

• Manufacturer Part Number: lm5110-3sdx
• Description: Dual 5a Compound Gate Driver With Negative Output Voltage Capability
• Manufacturer: National Semiconductor Corporation

Thermal Performance
(Continued)
(on) of the LM5110 output at T
(max) is 2.5Ω, this equation
S
J
yields I
(max) of 391mA which is much smaller than 5A
SINK
peak pulsed currents.
Similarly, the maximum continuous source current can be
calculated as
where V
is the voltage drop across hybrid output stage
DIODE
which varies over temperature and can be assumed to be
about 1.1V at T
(max) of 125˚C. Assuming the same param-
J
eters as above, this equation yields I
(max) of 347mA.
SOURCE
11
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