cp494 Ceramate Technical Co., Ltd., cp494 Datasheet - Page 2

• Manufacturer Part Number: cp494
• Description: Switchmode Pulse Width Modulation Control Circuit
• Manufacturer: Ceramate Technical Co., Ltd.

* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
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Fax:[phone]
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
For typical values T
REFERENCE SECTION
OUTPUT SECTION
2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
Power Supply Voltage
Collector Output Voltage
Collector Output Current (Each transistor)
Amplified Input Voltage
Current Into Feedback Terminal
Reference Output Current
Timing Resistor
Timing Capacitor
Oscillator Frequency
Reference Voltage (I
Line Regulation (V
Load Regulation (I
Short Circuit Output Current (V
Collector Off–State Current
Emitter Off–State Current
Collector–Emitter Saturation Voltage (Note 2)
Output Control Pin Current
Output Voltage Rise Time
Output Voltage Fall Time
(V
V
Common–Emitter (V
Emitter–Follower (V
Low State (V
High State (V
Common–Emitter (See Figure 12)
Emitter–Follower (See Figure 13)
Common–Emitter (See Figure 12)
Emitter–Follower (See Figure 13)
CC
CC
SWITCHMODE Pulse Width Modulation Control Circuit
= 40 V, V
= 40 V, V
OC
OC
C
CE
A
= 40 V, V
O
CC
v 0.4 V)
= V
= 25 C, for min/max values T
= 40 V)
O
= 1.0 mA to 10 mA)
= 7.0 V to 40 V)
C
ref
= 1.0 mA)
E
= 15 V, I
= 0 V, I
)
E
Characteristics
Characteristics
= 0 V)
ref
C
E
= 200 mA)
= 0 V)
= –200 mA)
(V
CC
= 15 V, C
A
is the operating ambient temperature range that applies, unless otherwise noted.
T
= 0.01 mF, R
Page 2 of 11
T
= 12 kW, unless otherwise noted.)
V
Symbol
I
C1
C1
Symbol
Reg
Reg
V
V
V
f
V
C
I
l
R
I
osc
I
l
I
ref
C(off)
CC
, V
, I
V
E(off)
fb
sat(C)
sat(E)
OCH
I
OCL
in
T
T
SC
t
t
ref
C2
r
f
load
line
C2
0.0047
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Http: www.ceramate.com.tw
–0.3
Min
7.0
1.8
1.0
–
–
–
–
4.75
Min
15
–
–
–
–
–
–
–
–
–
–
–
–
0.001
Typ
Typ
100
100
15
30
30
40
5.0
2.0
3.0
2.0
1.1
1.5
0.2
35
10
25
40
–
–
–
–
–
Rev 1.0 Apr.19,2004
CP494
V
–100
CC
Max
5.25
100
200
200
100
100
1.3
2.5
3.5
25
15
75
Max
200
500
200
–
0.3
40
40
10
10
– 2.0
Unit
mV
mV
mA
mA
Unit
mA
mA
mA
ns
ns
kHz
mA
mA
mA
V
V
kW
mF
V
V
V