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HV3-2405E-9 の電気的特性と機能

HV3-2405E-9のメーカーはHarris Corporationです、この部品の機能は「World-Wide Single Chip Power Supply」です。


製品の詳細 ( Datasheet PDF )

部品番号 HV3-2405E-9
部品説明 World-Wide Single Chip Power Supply
メーカ Harris Corporation
ロゴ Harris Corporation ロゴ 




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HV3-2405E-9 Datasheet, HV3-2405E-9 PDF,ピン配置, 機能
SEMICONDUCTOR
HV-2405E
April 1994
World-Wide
Single Chip Power Supply
Features
Description
• Direct AC to DC Conversion
• Wide Input Voltage Range. . . . . . . . . .15Vrms-275Vrms
• Dual Output Voltages Available
• Output Current . . . . . . . . . . . . . . . . . . . . . . . up to 50mA
• Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 5V to 24V
• Line and Load Regulation . . . . . . . . . . . . . . . . . . . . <2%
• UL Recognition, File # E130808
Applications
• Power Supply for Non-Isolated Applications
• Power Supply for Relay Control
• Dual Output Supply for OFF-LINE Motor Controls
• Housekeeping Supply for Switch-Mode Power
Supplies
Ordering Information
PART NUMBER
HV3-2405E-5
HV3-2405E-9
TEMPERATURE
RANGE
0oC to +75oC
-40oC to +85oC
PACKAGE
8 Lead Plastic DIP
8 Lead Plastic DIP
The HV-2405E is a single chip off line power supply that con-
verts world wide AC line voltages to a regulated DC voltage.
The output voltage is adjustable from 5VDC to 24VDC with an
output current of up to 50mA. The HV-2405E can operate
from input voltages between 15Vrms and 275Vrms as well
as input frequencies between 47Hz to 200Hz (see Table 1 in
section titled “Minimum Input Voltage vs Output Current” for
details).
The wide input voltage range makes the HV-2405E an excel-
lent choice for use in equipment which is required to operate
from either 240V or 120V. Unlike competitive AC-DC conver-
tors, the HV-2405E can use the same external components
for operation from either voltage. This flexibility in input volt-
age, as well as frequency, enables a single design for a
world wide supply.
The HV-2405E has a safety feature that monitors the incom-
ing AC line for large dv/dt (i.e. random noise spikes on AC
line, initial power applied at or near peak line voltage). This
inhibit function protects the HV-2405E, and subsequent cir-
cuitry, by turning off the HV-2405E during large dv/dt tran-
sients.This feature is utilized to ensure operation within the
SOA (Safe Operating Area) of the HV-2405E.
The HV-2405E can be configured to work directly from an
electrical outlet (see Figure 1) or imbedded in a larger sys-
tem (see Figure 7). Both application circuits have compo-
nents that will vary based on input voltage, output current
and output voltage. It is important to understand these val-
ues prior to beginning your design.
CAUTION: This Product Does Not Provide Isolation From The AC line. See “General Precautions”. Failure to use a properly rated
fuse may cause R1 to reach dangerously High Temperature or Cause the HV-2405E to Crack or Explode.
Pinout
HV-2405E (PDIP)
TOP VIEW
AC RETURN 1
PRE-REG
CAP (C2)
2
GND 3
INHIBIT 4
8 AC HIGH
7 NC
6 VOUT
5 VSENSE
Functional Diagram
SWITCHING
PRE-REGULATOR
AC
HIGH
R1
FUSE
DA1
8
SA1 DA2
LINEAR
POST-REGULATOR
Q1
6
VOUT
C1
4
RA4
RA5
DA3
ZA1
AC
RETURN
VOUT
(1, 3)
HV-2405E
+-
5
SENSE
RB11
SA2
C2
RB10
BANDGAP
REFERENCE
2
(1, 3)
AC
RETURN
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright © Harris Corporation 1992
5-15
File Number 2487.5

1 Page





HV3-2405E-9 pdf, ピン配列
HV-2405E
Application Information
OPERATING CONDITIONS
VIN = 50Vrms TO 275Vrms
FREQUENCY = 50Hz to 60Hz
IOUT = 0mA to 50mA
VOUT = 5V + VZI
C2
470µF
R6
5.6K
R5
3.3K
Z2
1N5231A
C5
0.047
µF
C1
0.1µF
1
2
HV-2405E
3
4
2N2222
R4
5.6K
8
7
6
5
R1
100
C3
20pF
Z1 C4
10µF
FUSE
AC HIGH
R2
220K
AC RETURN
VOUT
R3
3.9K
FUSE = 1/ 4A
R1 = 100, 5W
R2 = 220k, 1W
R3 = 3.9k, 1/4W
R4 = 5.6k, 1/ 4W
R5 = 3.3, 1/ 4W
R6 = 5.6k, 1/4 W
COMPONENT LIST
C1 = 0.1µF, AC RATED
C2 = 470µF, 15V + VOUT, ELECTROLYTIC
C3 = 20pF, CERAMIC
C4 = 10µF, VOUT + 10V, ELECTROLYTIC
C5 = 0.047µF, 10V
Z1 = VOUT - 5V, 1/4W
Z2 = 5.1V, 1N5231/A OR EQUIVALENT
Q1 = 2N2222 OR EQUIVALENT
FIGURE 1. OFF LINE WORLD-WIDE SUPPLY (IOUT 50mA)
Off line World Wide Supply (IOUT 50mA)
Figure 1 shows the recommended application circuit for an
off line world wide supply. The circuit will deliver an output
voltage of 5V to 24V and an output current from 0 to 50mA.
The value of C2 can be reduced for applications requiring
less output current (see section titled “Optimizing Design” for
details). For a basic understanding of the internal operation
of the HV-2405E reference section titled “How the HV-2405E
Works”.
The following is a detailed explanation of this application cir-
cuit:
Basic Operation
When the input voltage goes positive an internal switch
connects pin 8 to pin 2 allowing current to flow through R1 to
charge up C2. When the voltage on C2 reaches a
predetermined voltage the switch opens and the charging of
C2 stops. R1 limits the input current and along with C1
provides a snubber for the internal switch. A linear regulator
takes current from C2 further regulating the voltage and
limiting the ripple at pin 6. The voltage at pin 6 is equal to
VZ1 +5V. The linear regulator also provides output current
limiting. The capacitor C4 on pin 6 is required for stability of
the output.
Input Current Limiting Circuit
The external components in the shaded area of Figure 1 per-
form two functions. The first is to shut down the HV-2405E in
the presences of a large voltage transients and the second is
to provide input current limiting.
Resistors R2, R3 and capacitor C3 monitor the input voltage
and turn on Q1 which shuts down the HV-2405E when the
input voltage or the dv/dt is too large. This network antici-
pates the voltage applied to pin 8, since R1 and C1 add
several micro seconds delay, and turns off the HV-2405E
when a predetermined input voltage is exceeded. The differ-
ence between R3/C3 and R1/C1 time constants ensures
that the HV-2405E internal switch opens before the voltage,
and thereby the input current, is allowed to rise to a danger-
ous level at pin 8.The input voltage at which the HV-2405E is
turned off, is dependent upon the voltage on C2. The higher
the voltage on C2 the larger the input current that the HV-
2405E can safely turn off. For a detailed explanation of why
the voltage on C2 determines the maximum input current
that the HV-2405E can safely turn off, reference “Start-up” in
section titled “How the HV-2405E Works”.
Input current limiting is provided when the voltage at the
base of Q1 forward biases the base to emitter junction, turn-
ing off the internal switch. The voltage required at the base
to turn on Q1 increases as the voltage on C2 increases the
emitter voltage. When the voltage on C2 is >10V, the emitter
voltage is held constant by Z2 and the maximum input cur-
rent is set by resistors R2, R3, R4 and R5 (see section titled
“Design Equations” for more details).
Operation
The circuit in Figure 1 ensures operation within the SOA of
the HV-2405E by limiting the input current to <500mA when
the voltage on C2 equals zero and <2A when the voltage on
5-17


3Pages


HV3-2405E-9 電子部品, 半導体
HV-2405E
Application Information (Continued)
Minimum Input Voltage vs IOUT
Table 1 shows the minimum input voltage range as a
function of output current. Notice that the HV-2405E can
deliver 5V at 10mA from a source voltage as little as 15Vrms
and requires a minimum of 50Vrms to deliver 24V at 50mA.
TABLE 1. MINIMUM INPUT VOLTAGE vs OUTPUT CURRENT
VOUT
5V
24V
10mA
15Vrms
31Vrms
IOUT
25mA
21Vrms
38Vrms
35mA
25Vrms
41Vrms
50mA
30Vrms
50Vrms
Component List (World Wide Supply <50mA)
Fuse
Opens the connection to the power line.
Recommended value: 1/4AG
R1 Source Resistor
R1 limits the input current into the HV-2405E. Needs to be
large enough to limit inrush current when C2 is discharged
fully. The maximum inrush current needs to be limited to less
than 2A (V peak / R1 <2A). The equation for power dissipa-
tion in R1 is:
Pd = 2.8 R1 Vrms (IOUT)3
(EQ. 10)
Wirewound resistors are recommended due to their superior
temperature characteristics.
R1 = 100(±10%)
R2, R3, R4, R5 and R6 Resistors
R2, R3, R4, R5 and R6 set the bias level for Q1 that
establishes the minimum and maximum input current limit
during start-up.
Resistor values (±5%):
R2 = 220k, 1W
R3 = 3.9k, 1/4W
R4 = 5.6k, 1/4W
R5 = 3.3k, 1/4W
R6 = 5.6k, 1/4W
C1 Snubber Capacitor
C1 and R1 form a low pass filter that limits the voltage rate
of rise across SA1 (the main current carrying SCR of the
HV-2405E) and therefore its power dissipation.
C1 = 0.1µF (±10%) AC rated, metallized polyester.
C2 Pre-Regulator Capacitor
C2 is charged once each line cycle. The post regulator
section of the HV-2405E is powered by C2 for most of the
line cycle. If the application requires a smaller input voltage,
the value of C2 can be reduced from that shown in Figure 1
(see section on “Optimizing Design” for details). Note:
capacitors with high ESR may not store enough charge to
maintain full load current. The voltage rating of C2 should be
about 10V greater than the selected VOUT.
Recommended value = 470µF electrolytic (±20%), unless
otherwise specified.
C3 Feed Forward Capacitor
C3 is part of the input Current limiting circuitry shown in
Figure 1. C3 detects large voltage transients on the AC line
and turns off the HV-2405E by turning Q1 on.
C3 = 20pF (20%), breakdown voltage >500V.
C4 Output Filter Capacitor
C4 is required to maintain the stability of the output stage.
Larger values may help in supplying short momentary
current peaks to the load and improve output ripple during
start-up.
C4 = 10µF (±20%)
Z1 Output Voltage Adjust
Z1 is used to set the output voltage above the 5V reference
on pin 5 (see section titled “Setting The Output Voltage” for
more details).
Z1= VOUT - 5V,1/4W. V2 valve at 1mA.
Note, the wattage rating is different when configured as a
dual supply (see dual supply section for on how to determine
wattage).
Z2 Clamp Diode
Z2 clamps the voltage on Q1s emitter when the voltage on
C2 >10V. This results in limiting the maximum input current
to less than 2A.
Z2 = 5.1V, 1N5231A or equivalent
Q1 Input Current Limiting Transistor
Q1 shuts down the HV-2405E when the input voltage or dv/dt
is too large.
VCEO = 40V min.
Q1 = 2N2222 or equivalent
Imbedded Supply (IOUT 30mA)
+
FUSE R1
150
FILTER
NETWORK
dv/dt < 10V/µs
C1
0.1µF
HV-2405E
VOUT
C4
10µF
COMPONENT LIST
R2
2.7
C2
330µF
C3
150pF
-
FUSE = 1/4A
R1 = 150, 3W
R2 = 2.7, 1/4W
C1 = 0.1µF, AC RATED
C2 = 330µF, 15V + VOUT, ELECTROLYTIC
C3 = 150pF, CERAMIC
C4 = 10µF, VOUT + 10V, ELECTROLYTIC
Z1 = VOUT -5V, 1/4W
FIGURE 7. IMBEDDED SUPPLY IOUT 30mA
5-20

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部品番号部品説明メーカ
HV3-2405E-5

World-Wide Single Chip Power Supply

Harris Corporation
Harris Corporation
HV3-2405E-9

World-Wide Single Chip Power Supply

Harris Corporation
Harris Corporation


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