upd16858b Renesas Electronics Corporation., upd16858b Datasheet - Page 6

• Manufacturer Part Number: upd16858b
• Description: Three-phase Spindle Motor Driver For Monolithic Cd-rom
• Manufacturer: Renesas Electronics Corporation.

TOTAL LOSS VS AMBIENT TEMPERATURE CHARACTERISTICS
6
Caution If the ambient temperature is 25 C or less, a power of up to 1 W can be applied. If the temperature
rises beyond 25 C, perform derating by referring to the above figure. At 75 C, which is the
maximum level of the recommended operating temperature, a power of up to 0.6 W can be applied
to the IC.
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
20
0
1.0 W
Data Sheet S13480EJ3V0DS00
25
Ambient temperature T
25 C
P
T
-T
125 C/W
50
A
characteristics
When mounted on glass epoxy
substrate measuring
100 mm
with 15% of Cu foil
75
75 C
A
100 mm
( C)
100
1.0 mm
125
150
PD16858B/C