S E M I C O N D U C T O R
HV-2405E
World-Wide
Single Chip Power Supply
Description
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 5V
DC
to 24V
DC
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.
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
0
o
C to +75
o
C
-40
o
C to +85
o
C
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
V
OUT
RA4
HV-2405E
+
-
RB11
SENSE
RA5
4
RB10
DA3
ZA1
SA2
BANDGAP
REFERENCE
(1, 3)
AC
RETURN
V
OUT
(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
HARRIS [ HARRIS CORPORATION ]
