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Details, datasheet, quote on part number:HV-2405E
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Datasheet text preview:
SEMICONDUCTOR
HV-2405E
World-Wide Single Chip Power Supply
Description
The HV-2405E is a single chip off line power supply that converts 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 excellent choice for use in equipment which is required to operate from either 240V or 120V. Unlike competitive AC-DC convertors, the HV-2405E can use the same external components for operation from either voltage. This flexibility in input voltage, as well as frequency, enables a single design for a world wide supply. The HV-2405E has a safety feature that monitors the incoming 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 circuitry, by turning off the HV-2405E during large dv/dt transients.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 system (see Figure 7). Both application circuits have components that will vary based on input voltage, output current and output voltage. It is important to understand these values prior to beginning your design.
April 1994
Features
· 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
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
Functional Diagram
SWITCHING PRE-REGULATOR AC HIGH R1 8 5 DA1 SA1 DA2 LINEAR POST-REGULATOR Q1
6
AC RETURN 1 PRE-REG 2 CAP (C2) GND 3 INHIBIT 4
8 AC HIGH FUSE 7 NC 6 VOUT 5 VSENSE C1
VOUT
RA4
HV-2405E + RB11
SENSE
RA5 4 RB10 DA3 ZA1 SA2 BANDGAP REFERENCE (1, 3) AC RETURN VOUT (1, 3) C2 CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures. Copyright 2 AC RETURN
© Harris Corporation 1992
File Number
2487.5
5-15
Specifications HV-2405E
Absolute Maximum Ratings
Voltage Between Pin 1 and 8, Peak . . . . . . . . . . . . . . . . . . . . . . . . ±500V Voltage Between Pin 2 and 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Input Current, Peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34V
Thermal Information
Thermal Resistance JA Plastic DIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150oC/W Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +150oC Storage Temperature Range. . . . . . . . . . . . . . . . . . -65oC to +150oC
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Electrical Specifications
Unless Otherwise Specified: VIN = 264Vms at 50Hz, C1 = 0.05µF, C2 = 470µF, C4 = 1µF, VOUT = 5V, IOUT = 50mA, Source Impedance R1 = 150. Parameters are Guaranteed at the Specific VIN and Frequency Conditions, Unless Otherwise Specified. See test circuit for Component Location. HV-2405E-5/-9
PARAMETER Output Voltage (At Preset 5V)
CONDITIONS VREF = 0VDC
TEMP +25oC Full
MIN 4.75 4.65 22.8 22.32 50 -
TYP 5.0 5.0 24.0 24.0 10 15 24 70 0.02 2
MAX 5.25 5.35 25.2 25.68 20 40 20 40 -
UNITS V V V V mV mV mV mV mA mV mA %/oC mA
Output Voltage (At Preset 24V)
VREF = 19VDC
+25oC Full
Line Regulation
80Vrms to 264Vrms
+25oC Full
Load Regulation
(IOUT = 5mA to 50mA)
+25oC Full
Output Current Output Ripple (Vp-p) Short Circuit Current Limit Output Voltage TC Quiescent Current Post Regulator 11VDC to 30VDC on Pin 2
Full Full Full Full +25oC
Test Circuit
+ R1 150 7 NC +
8 6 5
VREF
FILTER NETWORK AUTOMATIC TEST EQUIPMENT DUT TEST SIGNALS SHOULD BE FILTERED TO PRECLUDE TRANSIENTS TO LESS THAN 10V/µs C1 0.05µF 1 2 3 4
VOUT C4 1µF
C2 470µF
C3 150pF
-
5-16
HV-2405E Application Information
C1 0.1µF OPERATING CONDITIONS VIN = 50Vrms TO 275Vrms FREQUENCY = 50Hz to 60Hz IOUT = 0mA to 50mA VOUT = 5V + VZI C2 470µF R1 100 FUSE AC HIGH
1 2 HV-2405E 3 4 2N2222 R6 5.6K Z2 1N5231A R5 3.3K C5 0.047 µF R4 5.6K
8 7 6 Z1 5
C3 20pF
R2 220K
AC RETURN
VOUT C4 10µF
R3 3.9K
COMPONENT LIST 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 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 circuit: 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 perform 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 anticipates 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 difference 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 dangerous 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 HV2405E 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, turning 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 current 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
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