CP1032
Chopper Regulators
Fig.15 Power Dissipation vs. Ambient
Temperature (Typical Value)
3
Cu area 3 600mm
2
Power dissipation P
D
(W)
2
Cu area 900mm
2
Cu area 400mm
2
Cu area 115mm
2
PWB
PWB
Cu
1
0
−20
0
25
50
75
85
Ambient temperature T
a
(°C)
Material
: Glass-cloth epoxy resin
Size
: 60×60×1.6mm
Cu thickness : 65µm
Fig.16 Block Diagram
V
IN
1
2
V
out
Voltage regulator
ON/OFF circuit
5
_
PWM COMP.
+
F/F
V
soft
Soft start
circuit
ERROR AMP.
_
+
Q
R
S
Overcurrent
detection circuit
4
O
ADJ
Overheat
detection circuit
Ocsillation circuit
_
+
3
V
ref
V
S'
COM
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page
8
of 12
Rev 1.1 Aug.31, 2004
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
