AZ34063D Datasheet, PDF (6/14 Pages) BCD Semiconductor Manufacturing Limited – 1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER

Data Sheet
1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
Electrical Characteristics (Continued)
AZ34063D
Forced β of output switch:
I_C dIr^Civoeurt-pu7t.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
(V_CC=5.0V, T_A=25^oC, unless otherwise specified.)
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
V_CC=5.0V
V_PIN7=V_CC
V_PIN2=GND
Pin 1,5,8=open
C_T=1.0nF
T_A=25^oC
Time 20µs/DIV
Figure 5. Timing Capacitor Waveform
100
10
1
0.1
V =5.0V
CC
V =V
PIN7 CC
V =GND
PIN5
T =25OC
A
1
10
100
C Timing Capacitor (nF)
T
3.5
3.0
2.5
2.0
C =1.0nF
1.5
T
V =V
PIN7 CC
V =GND
1.0
PIN2
0.5
0
5
10
15
20
25
30
35
40
V Supply Voltage (V)
CC
Figure 6. Oscillator Frequency vs.Timing Capacitor
Figure 7. Standby Supply Current vs. Supply Voltage
Mar. 2010 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
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