ncp1450-d ON Semiconductor, ncp1450-d Datasheet - Page 13

• Manufacturer Part Number: ncp1450-d
• Description: Pwm Step?up Dc?dc Controller
• Manufacturer: ON Semiconductor

1. V
2. I
3. V
1. V
2. I
3. V
1. V
2. I
3. V
L
L
L
L
OUT
L
OUT
Figure 53. NCP1450ASN30T1 Operating
L
OUT
, 500 mA/div
, 500 mA/div
, 500 mA/div
Figure 55. NCP1450ASN50T1 Operating
Figure 51. NCP1450ASN19T1 Operating
V
V
V
, 1.0 V/div
, 2.0 V/div
, 2.0 V/div
OUT
OUT
OUT
, 50 mV/div, AC coupled
, 50 mV/div, AC coupled
, 50 mV/div, AC coupled
= 1.9 V, V
= 3.0 V, V
= 5.0 V, V
Waveforms (Medium Load)
Waveforms (Medium Load)
Waveforms (Medium Load)
IN
IN
IN
C
C
C
= 1.2 V, I
= 1.8 V, I
= 3.0 V, I
OUT
OUT
OUT
2 ms/div
2 ms/div
2 ms/div
= 220 mF
= 220 mF
= 220 mF
O
O
O
= 20 mA, L = 10 mH,
= 20 mA, L = 10 mH,
= 20 mA, L = 10 mH,
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NCP1450A
13
1. V
2. I
3. V
1. V
2. I
3. V
1. V
2. I
3. V
L
L
L
V
L
OUT
Figure 52. NCP1450ASN19T1 Operating
V
L
OUT
V
L
OUT
, 500 mA/div
, 500 mA/div
Figure 54. NCP1450ASN30T1 Operating
, 500 mA/div
Figure 56. NCP1450ASN50T1 Operating
, 1.0 V/div
, 2.0 V/div
, 2.0 V/div
OUT
OUT
OUT
, 50 mV/div, AC coupled
, 50 mV/div, AC coupled
, 50 mV/div, AC coupled
= 1.9 V, V
= 3.0 V, V
= 5.0 V, V
Waveforms (Heavy Load)
Waveforms (Heavy Load)
Waveforms (Heavy Load)
IN
IN
IN
C
C
C
= 1.2 V, I
= 1.8 V, I
= 3.0 V, I
OUT
OUT
OUT
2 ms/div
2 ms/div
2 ms/div
= 220 mF
= 220 mF
= 220 mF
O
O
O
= 500 mA, L = 10 mH,
= 500 mA, L = 10 mH,
= 500 mA, L = 10 mH,