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NCP785AH50T1G

P1-P3P4-P6P7-P9P10-P10
NCP785A
www.onsemi.com
7
TYPICAL CHARACTERISTICS
Figure 13. Quiescent Current vs. Input Voltage
INPUT VOLTAGE (V)
40035030020015010050
13
15
16
17
18
19
20
Figure 14. Quiescent Current vs. Input Voltage
Figure 15. Output Voltage vs. Output Current
INPUT VOLTAGE (V)
OUTPUT CURRENT (mA)
400350300200150100500
16
17
18
19
20
21
22
23
98654210
3.25
3.26
3.27
3.28
3.29
3.30
3.31
3.32
QUIESCENT CURRENT (mA)
QUIESCENT CURRENT (mA)
OUTPUT VOLTAGE (V)
250 450
14
250 450
3710
C
IN
= 2.2 mF
C
OUT
= 22 mF
I
OUT
= 0
NCP785AH120T1G
T
A
= −40°C
T
A
= 25°C
T
A
= 85°C
C
IN
= 2.2 mF
C
OUT
= 22 mF
I
OUT
= 0
NCP785AH150T1G
T
A
= −40°C
T
A
= 25°C
T
A
= 85°C
V
IN
= 250 V
V
IN
= 350 V
V
IN
= 450 V
C
IN
= 2.2 mF
C
OUT
= 22 mF
T
A
= 25°C
NCP785AH33T1G
V
IN
= 150 V
V
IN
= 50 V
V
IN
= 25 V
Figure 16. Output Voltage vs. Output Current
OUTPUT CURRENT (mA)
97654210
4.95
5.00
5.05
5.10
5.15
OUTPUT VOLTAGE (V)
3810
V
IN
= 200 V
V
IN
= 350 V
V
IN
= 450 V
C
IN
= 2.2 mF
C
OUT
= 22 mF
T
A
= 25°C
NCP785AH50T1G
V
IN
= 100 V
V
IN
= 50 V
Figure 17. Output Voltage vs. Output Current Figure 18. Output Voltage vs. Output Current
OUTPUT CURRENT (mA) OUTPUT CURRENT (mA)
97654210
11.89
11.91
11.94
11.96
11.99
1086420
14.80
14.85
14.90
14.95
15.00
15.05
15.10
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
3810
V
IN
= 200 V
V
IN
= 350 V
V
IN
= 450 V
C
IN
= 2.2 mF
C
OUT
= 22 mF
T
A
= 25°C
NCP785AH120T1G
V
IN
= 100 V
V
IN
= 55 V
V
IN
= 200 V
V
IN
= 300 V
V
IN
= 450 V
C
IN
= 2.2 mF
C
OUT
= 22 mF
T
A
= 25°C
NCP785AH150T1G
V
IN
= 100 V
V
IN
= 60 V
V
IN
= 350 V
11.90
11.92
11.93
11.95
11.97
11.98
V
IN
= 150 V
V
IN
= 300 V
NCP785A
www.onsemi.com
8
TYPICAL CHARACTERISTICS
Figure 19. Output Noise Density vs. Frequency Figure 20. Output Noise Density vs. Frequency
FREQUENCY (Hz) FREQUENCY (Hz)
1M100K10K1K10010
0
0.5
1.0
2.0
3.0
3.5
4.0
5.0
1M100K10K1K10010
0
1
2
3
4
6
7
8
Figure 21. Output Noise Density vs. Frequency
FREQUENCY (Hz)
1M100K10K1K10010
0
1
3
5
6
8
(mV/√Hz)
(mV/√Hz
)
(mV/√Hz
)
1.5
2.5
4.5
5
C
IN
= 2.2 mF
C
OUT
= 22 mF
I
OUT
= 100 mA
V
IN
= 340 V
T
A
= 25°C
NCP785AH33T1G
C
IN
= 2.2 mF
C
OUT
= 22 mF
I
OUT
= 100 mA
V
IN
= 340 V
T
A
= 25°C
NCP785AH50T1G
C
IN
= 2.2 mF
C
OUT
= 22 mF
I
OUT
= 100 mA
V
IN
= 340 V
T
A
= 25°C
NCP785AH50T1G
Figure 22. Output Noise Density vs. Frequency
FREQUENCY (Hz)
1M100K10K1K10010
0
5
10
15
20
25
(mV/√Hz)
C
IN
= 2.2 mF
C
OUT
= 22 mF
I
OUT
= 100 mA
V
IN
= 340 V
T
A
= 25°C
NCP785AH150T1G
2
4
7
NCP785A
www.onsemi.com
9
APPLICATION INFORMATION
The typical application circuit for the NCP785A device is shown below.
Figure 23. Typical Application Schematic
NCP785A
V
IN
V
OUT
GND
C
IN
2.2 μF
C
OUT
22 μF
V
IN
25 V − 450 V
V
OUT
3.3 V, 5 V, 15 V
Input Decoupling (C1)
A 1 mF capacitor either ceramic or electrolytic is
recommended and should be connected close to the input pin
of NCP785A. Higher value 2.2 mF is necessary to sustain the
required minimum input voltage at full load for AC voltage
as low as 85 V with half wave rectifier.
Output Decoupling (C2)
The NCP785A Regulator does not require any specific
Equivalent Series Resistance (ESR). Thus capacitors
exhibiting ESRs ranging from a few mW up to 0.5 W can be
used safely. The minimum decoupling value is 22 mF. The
regulator accepts ceramic chip capacitors as well as
tantalum devices or low ESR electrolytic capacitors. Larger
values improve noise rejection and load transient response.
Layout Recommendations
Please be sure the V
IN
and GND lines are sufficiently
wide. When the impedance of these lines is high, there is a
chance to pick up noise or to cause the malfunction of
regulator.
Set external components, especially the output capacitor,
as close as possible to the circuit, and make leads as short as
possible.
Thermal
As power across the NCP785A increases, it might become
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design layout and used package. Mounting pad
configuration on the PCB, the board material, and also the
ambient temperature affect the rate of temperature rise for
the part. This is stating that when the NCP785A has good
thermal conductivity through the PCB, the junction
temperature will be relatively low with high power
dissipation applications.
ORDERING INFORMATION
Part Number Output Voltage Marking Package Shipping
†
NCP785AH33T1G 3.3 V AA
SOT−89
(Pb−Free)
1000 / Tape & Reel
NCP785AH50T1G 5 V AC
NCP785AH120T1G 12 V AJ
NCP785AH150T1G 15 V AD
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
P1-P3P4-P6P7-P9P10-P10

NCP785AH50T1G

Mfr. #:
Buy NCP785AH50T1G
Manufacturer:
ON Semiconductor
Description:
Linear Voltage Regulators HV LINEAR REG 10MA 5V
Lifecycle:
New from this manufacturer.
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