MC34271FB View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
MC34271FB Datasheet PDF : 12 Pages
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MC34271
0
Vref
– 5.0
–10
VA
–15
– 20
VDD = 6.0 V
– 25
TA = 25°C
– 30
0
1.0
2.0
3.0
4.0
5.0
I, CURRENT DRAW (mA)
Figure 3. Reference Voltage Change versus
Reference Current
2.5
2.2
2.0
EN1 and EN2 = 1
1.8
1.5
EN1 = 1 and EN2 = 0
1.4
1.0
1.0
Standby Current
0.5
EN1 and EN2 = 0
RT = 169 k
No Loading
0.6
TA = 25°C
0
0.2
2.0 4.0 6.0 8.0 10 12 14 16 18
VDD, SUPPLY VOLTAGE (V)
Figure 4. Quiescent Current versus Supply Voltage
0.16
0
2.0
VDD
0.12
–1.0
Sink Saturation
VDD = 6.0 V
TA = 25°C
1.5
0.08
– 2.0
1.0
0.04
VDD = 6.0 V
TA = 25°C
0
0
50
100
150
200
ID, DRAIN CURRENT (mA)
Figure 5. FET Drain Voltage versus Sink Current
Source Saturation
– 3.0
0.5
– 4.0
0
0
15
30
45
60
ISource, SWITCH OUTPUT CURRENT (mA)
Figure 6. ELD and DRV1 Switch Output Source
and Sink Saturation versus Current
0.30
0.25
0.20
0.15
0.10
0.05
0
– 0.05
– 0.10
0
VDD = 6.0 V
VA
Vref
10
20
30
40
50
60
70
TA, AMBIENT TEMPERATURE (°C)
Figure 7. Vref and VA Variation
versus Temperature
8.0
6.0
4.0
2.0
0
– 2.0
– 4.0
– 6.0
– 8.0
0
VDD = 6.0 V
RT = 169 k
10
20
30
40
50
60
70
TA, AMBIENT TEMPERATURE (°C)
Figure 8. Oscillator Frequency Variation
versus Temperature
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