34063AM 데이터 시트보기 (PDF) - Unspecified
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34063AM Datasheet PDF : 13 Pages
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Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
Electrical Characteristics (Continued)
AZ34063A
Forced β of output switch:
IC output
ICdriver - 7.0mA*
≥
10
* The 100Ω resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
Typical Performance Characteristics
1000
100
V =5.0V
CC
V =V
PIN7 CC
V =GND
PIN5
T =25OC
A
10
t
on
t
off
1
0.1
1
10
100
C , Oscillator Timing Capacitor (nF)
T
Figure 4. Output Switch On-Off Time vs.
Oscillator Timing Capacitor
VCC=5.0V
VPIN7=VCC
VPIN2=GND
Pin 1,5,8=open
CT=1.0nF
TA=25oC
Time. 10µs/DIV
Figure 5. Timing Capacitor Waveform
V =5.0V
CC
100
V =V
PIN7 CC
V =GND
PIN5
T =25OC
A
10
1
0.1
1
10
100
C , Oscillator Timing Capacitor (nF)
T
3.5
3.0
2.5
2.0
C =1.0nF
T
1.5
V =V
PIN7 CC
V =GND
PIN2
1.0
0.5
0
5
10
15
20
25
30
35
40
V . Supply Voltage (V)
CC
Figure 6. Oscillator Frequency vs.Timing Capacitor
Sep. 2006 Rev. 1. 3
Figure 7. Standard Supply Current vs. Supply Voltage
BCD Semiconductor Manufacturing Limited
6
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