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MC34063A Datasheet(Fiches technique) 4 Page - ON Semiconductor

Numéro de pièce MC34063A
Description  DC-to-DC CONVERTER CONTROL CIRCUITS
Télécharger  12 Pages
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Fabricant  ONSEMI [ON Semiconductor]
Site Internet  http://www.onsemi.com
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MC34063A MC33063A
4
MOTOROLA ANALOG IC DEVICE DATA
Figure 3. Emitter Follower Configuration Output
Saturation Voltage versus Emitter Current
Figure 4. Common Emitter Configuration Output
Switch Saturation Voltage versus
Collector Current
Figure 5. Current Limit Sense Voltage
versus Temperature
Figure 6. Standby Supply Current versus
Supply Voltage
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
IE, EMITTER CURRENT (A)
VCC = 5.0 V
Pins 1, 7, 8 = VCC
Pins 3, 5 = Gnd
TA = 25°C
(See Note 4)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
IC, COLLECTOR CURRENT(A)
Darlington Connection
Forced
β = 20
–55
–25
0
25
50
75
100
125
TA, AMBIENT TEMPERATURE (°C)
VCC = 5.0 V
Ichg = Idischg
0
5.0
10
15
20
25
30
35
40
VCC, SUPPLY VOLTAGE (V)
CT = 1.0 nF
Pin 7 = VCC
Pin 2 = Gnd
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
1.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
400
380
360
340
320
300
280
260
240
220
200
3.6
3.2
2.4
2.0
1.6
1.2
0.8
0.4
0
1.0
2.8
VCC = 5.0 V
Pin 7 = VCC
Pins 2, 3, 5 = Gnd
TA = 25°C
(See Note 4)
NOTE:
4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.




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