ON NCP785H33T1G Wide input voltage range psrr linear regulator Datasheet

NCP785
Product Preview
Wide Input Voltage Range
5mA Ultra-Low Iq, High
PSRR Linear Regulator
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The NCP785 is a high−performance linear regulator, offering a very
wide operating input voltage range of up to 450 V DC, with an output
current of up to 5 mA.
Ideal for high input voltage applications such as industrial and home
metering, home appliances. The NCP785 family offers ±5% initial
accuracy, extremely high−power supply rejection ratio and ultra−low
quiescent current. The NCP785 family is optimized for high−voltage
line and load transients, making them ideal for harsh environment
applications.
The NCP785 is offered in fixed output voltage options 3.3 V and
5.0 V.
SOT−223 and SOT−89 packages offer good thermal performance
and help to minimize the overall solution size.
MARKING
DIAGRAMS
4
• Wide Input Voltage Range:
•
•
•
•
•
•
•
•
Tab
AYW
XXXXXG
G
SOT−89
H SUFFIX
CASE 1213
Features
DC: Up to 450 V
AC: 85 V to 260 V (half−wave rectifier and 2.2 mF capacitor)
5 mA Guaranteed Output Current
Ultra Low Quiescent Current: Typ. 6 mA (VOUT ≤ 5 V)
±5% Accuracy Over Full Load, Line and Temperature Variations
Ultra−high PSRR: 70 dB at 60 Hz, 90 dB at 100 kHz
Stable with Ceramic Output Capacitor 22 mF MLCC
Thermal Shutdown and Current Limit Protection
Available in Thermally Enhanced SOT89−3, SOT−223 Packages
This is a Pb−Free Device
AYW
XXXXXG
G
1
2
3
SOT−223
S SUFFIX
CASE 318E
A
Y
W
XXXXX
G
3
2
(Top Views)
(Tab is connected to Pin 2)
1
= Assembly Location
= Year
= Work Week
= Specific Device Code
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
Typical Applications
• Industrial Applications, Home Appliances
• Home Metering / Network Application
• Off−line Power Supplies
VIN
15 V − 450 V
VOUT
VIN
CIN
2.2 μF
NCP785
GND
VOUT
3.3 V, 5 V
VOUT
3.3 V, 5 V
VIN
85 VAC − 260 VAC
VIN
CIN
2.2 μF/
450 V
COUT
22 μF
VOUT
NCP785
GND
COUT
22 μF
Figure 1. Typical Applications
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2015
March, 2015 − Rev. P1
1
Publication Order Number:
NCP785/D
NCP785
VIN
ENB
ENB
Current
Limit
VREF
1.25 V
+
−
ENB
ENB
+
−
VOUT
Thermal
Shutdown
GND
NCP785
Figure 2. Simplified Internal Block Diagram
Table 1. PIN FUNCTION DESCRIPTION
Pin No.
(SOT−223)
Pin No.
(SOT89−3)
Pin Name
1
1
VIN
Supply Voltage Input. Connect 2.2 mF capacitor from VIN to GND.
2
−
NC
This pin is not internally connected to the IC
3
3
VOUT
Regulator Output. Connect 22 mF or larger MLCC capacitor from VOUT to GND.
4
2,4
GND
Ground connection.
Description
Table 2. PIN ASSIGNMENT
Pin No:
SOT223
SOT89−3
1
VIN
VIN
2
N/C
GND
3
VOUT
VOUT
4
GND
−
Tab
It is recommended that the Tab is connected to the
ground plane on the PCB or otherwise is left open.
GND
Table 3. ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
VIN
−0.3 to 700
V
VOUT
−0.3 to 18
V
TJ(MAX)
150
°C
TSTG
−55 to 150
°C
ESD Capability, Human Body Model (All pins except HV pin no.1) (Note 2)
ESDHBM
2000
V
ESD Capability, Machine Model (Note 2)
ESDMM
200
V
Input Voltage (Note 1)
Output Voltage
Maximum Junction Temperature
Storage Temperature
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Peak 650 V max 1 ms non repeated for 1 s
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latch−up Current Maximum Rating tested per JEDEC standard: JESD78.
Table 4. THERMAL CHARACTERISTICS
Rating
Symbol
Value
Unit
Thermal Characteristics, SOT−223
Thermal Resistance, Junction−to−Air
RqJA
73
°C/W
Thermal Characteristics, SOT89−3
Thermal Resistance, Junction−to−Air
RqJA
79
°C/W
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NCP785
Table 5. ELECTRICAL CHARACTERISTICS, VOUT = 3.3 V (−40°C ≤ TJ ≤ 85°C; VIN = 340 V; IOUT = 100 mA,
CIN = 1 mF, COUT = 22 mF, unless otherwise noted. Typical values are at TJ = +25°C.) (Note 3)
Parameter
Test Conditions
Symbol
Min
VIN
14
TJ = 25°C, Iout = 100 mA, 14 V ≤ Vin ≤ 450 V
VOUT
3.1515
−40°C ≤ TJ ≤ 85°C, Iout = 100 mA,
14 V ≤ Vin ≤ 450 V
VOUT
Line Regulation
14 V ≤ Vin ≤ 450 V, Iout = 100 mA
Load Regulation
100 mA ≤ IOUT ≤ 6 mA, Vin = 14 V
Maximum Output Current (Note 4)
14 V ≤ Vin ≤ 450 V
Quiescent Current
IOUT = 0, 14 V ≤ Vin ≤ 450 V
Ground Current (Note 4)
14 V ≤ Vin ≤ 450 V
0 < IOUT ≤ 5 mA
Power Supply Rejection Ratio
Vin = 340 VDC +1 Vpp
modulation, Iout = 100 mA
Noise
f = 10 kHz to 100 kHz
Vin = 340 VDC, Iout = 100 mA
Thermal Shutdown Temperature
(Note 5)
Thermal Shutdown Hysteresis
(Note 5)
Operating Input Voltage DC
Output Voltage Accuracy
Max
Unit
450
V
3.3
3.4485
V
3.135
3.3
3.465
V
RegLINE
−0.5
0.2
+0.5
%
RegLOAD
−0.5
0.37
+0.5
%
IOUT
6.8
IQ
Typ
mA
5.7
IGND
f = 1 kHz
8.4
mA
8.5
mA
PSRR
70
dB
VNOISE
280
mVrms
Temperature increasing from TJ = +25°C
TSD
145
°C
Temperature falling from TSD
TSDH
−
10
−
°C
Max
Unit
450
V
Table 6. ELECTRICAL CHARACTERISTICS, VOUT = 5.0 V (−40°C ≤ TJ ≤ 85°C; VIN = 340 V; IOUT = 100 mA,
CIN = 1 mF, COUT = 22 mF, unless otherwise noted. Typical values are at TJ = +25°C.) (Note 3)
Symbol
Min
VIN
16
TJ = 25°C, Iout = 100 mA, 16 V ≤ Vin ≤ 450 V
VOUT
4.775
5.0
5.225
V
−40°C ≤ TJ ≤ 85°C, Iout = 100 mA,
16 V ≤ Vin ≤ 450 V
VOUT
4.75
5.0
5.25
V
Line Regulation
16 V ≤ Vin ≤ 450 V, Iout = 100 mA
RegLINE
−0.5
0.2
+0.5
%
Load Regulation
100 mA ≤ IOUT ≤ 3.3 mA, Vin = 16 V
RegLOAD
−0.5
0.38
+0.5
%
Maximum Output Current (Note 4)
16 V ≤ Vin ≤ 450 V
IOUT
3.3
Quiescent Current
IOUT = 0, 16 V ≤ Vin ≤ 450 V
Ground Current (Note 4)
16 V ≤ Vin ≤ 450 V
0 < IOUT ≤ 3.3 mA
Power Supply Rejection Ratio
Vin = 340 VDC +1 Vpp
modulation, Iout = 100 mA
Noise
f = 10 kHz to 100 kHz
Vin = 340 VDC, Iout = 100 mA
Thermal Shutdown Temperature
(Note 5)
Thermal Shutdown Hysteresis
(Note 5)
Parameter
Test Conditions
Operating Input Voltage DC
Output Voltage Accuracy
IQ
Typ
mA
5.7
IGND
f = 1 kHz
8.4
mA
8.5
mA
PSRR
70
dB
VNOISE
280
mVrms
Temperature increasing from TJ = +25°C
TSD
145
°C
Temperature falling from TSD
TSDH
−
10
−
°C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. Performance guaranteed over the indicated operating temperature range by design and/or characterization production tested at TJ = TA =
25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
4. A proper heatsinking and/or low duty cycle pulse techniques are used to operate the device within the Safe Operating Area.
5. Guaranteed by design
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NCP785
APPLICATION INFORMATION
The typical application circuit for the NCP785 device is shown below.
VOUT
3.3V, 5V
VIN
15V – 450V
VIN
VOUT
NCP785
CIN
2.2μF
GND
COUT
22μF
Input Decoupling (C1)
Layout Recommendations
A 1 mF capacitor either ceramic or electrolytic is
recommended and should be connected close to the input pin
of NCP785. Higher value 2.2 mF is necessary to keep the
input voltage above the required minimum input voltage at
full load for AC voltage as low as 85 V with half wave
rectifier.
Please be sure the VIN 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.
Output Decoupling (C2)
The NCP785 is a stable Regulator and 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.
Thermal
As power across the NCP785 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 NCP785 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
Case
Package
Marking
NCP785H33T1G
3.3 V
TBD
SOT89−3
TBD
NCP785H50T1G
5V
TBD
SOT89−3
TBD
NCP785ST33T3G
3.3 V
TBD
SOT223−4
HVA
NCP785ST50T3G
5V
TBD
SOT223−4
HVC
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4
Shipping
NCP785
PACKAGE DIMENSIONS
SOT−89 (3−LEAD)
CASE 1213−02
ISSUE C
−A−
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETERS
3. 1213-01 OBSOLETE, NEW STANDARD 1213-02.
C
J
F
−B−
L
K
D
0.10
E
G
M
T B
S
A
−T−
S
2 PL
0.10
M
T B
S
A
S
H
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5
SEATING
PLANE
DIM
A
B
C
D
E
F
G
H
J
K
L
MILLIMETERS
MIN
MAX
4.40
4.60
2.40
2.60
1.40
1.60
0.37
0.57
0.32
0.52
1.50
1.83
1.50 BSC
3.00 BSC
0.30
0.50
0.80
----4.25
INCHES
MIN
MAX
0.173
0.181
0.094
0.102
0.055
0.063
0.015
0.022
0.013
0.020
0.059
0.072
0.059 BSC
0.118 BSC
0.012
0.020
0.031
----0.167
NCP785
PACKAGE DIMENSIONS
SOT−223 (TO−261)
CASE 318E−04
ISSUE N
D
b1
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: INCH.
4
HE
DIM
A
A1
b
b1
c
D
E
e
e1
L
L1
HE
E
1
2
3
b
e1
e
0.08 (0003)
A1
C
q
A
q
L
MIN
1.50
0.02
0.60
2.90
0.24
6.30
3.30
2.20
0.85
0.20
1.50
6.70
0°
MILLIMETERS
NOM
MAX
1.63
1.75
0.06
0.10
0.75
0.89
3.06
3.20
0.29
0.35
6.50
6.70
3.50
3.70
2.30
2.40
0.94
1.05
−−−
−−−
1.75
2.00
7.00
7.30
10°
−
MIN
0.060
0.001
0.024
0.115
0.009
0.249
0.130
0.087
0.033
0.008
0.060
0.264
0°
INCHES
NOM
0.064
0.002
0.030
0.121
0.012
0.256
0.138
0.091
0.037
−−−
0.069
0.276
−
MAX
0.068
0.004
0.035
0.126
0.014
0.263
0.145
0.094
0.041
−−−
0.078
0.287
10°
STYLE 11:
PIN 1. MT 1
2. MT 2
3. GATE
4. MT 2
L1
SOLDERING FOOTPRINT
3.8
0.15
2.0
0.079
2.3
0.091
2.3
0.091
6.3
0.248
2.0
0.079
1.5
0.059
SCALE 6:1
mm Ǔ
ǒinches
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NCP785/D
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