LA4425A
V
= 13.2 V/4 Ω
CC
Rg = 0
‘‘OFF’’ locus
GND
0.2 s/div
Instructions and Precautions
.
Connect a capacitor of 1000 pF across pins 1 and 2 for external disturbance path.
Be careful of the ground line artwork when laying out the printed circuit pattern. Arrange so that the Sg route and load current
flow-in route do not overlap. Refer to the recommended printed circuit pattern or make slits, etc. at pins 2 and 3.
.
DUAL Printed Circuit Pattern Example
GND
1
OUT1
IN1
VCC
GND
IN2
1
OUT2
Cu-foiled side 45.0 × 75.0 mm2
.
Short Circuit Tests
Sanyo’s recommended printed circuit board: Apply VCC = 13.2 V using a 30 × 30 × 1.5 mm3 thick aluminum board. The IC will
be protected from the DC/AC shorting of switches 1 to 4 above. However, be careful not to damage the IC by turning VCC ‘‘ON’’
when DC short (SW 1 or SW 2) is on.
.
Power Supply Positive Surge
JASO tester
Application of giant pulse
No.3309-6/8
ETC [ ETC ]
