PWM Controller. HV9123 Datasheet

HV9123 Controller. Datasheet pdf. Equivalent

Part HV9123
Description Current-Mode PWM Controller
Feature Supertex inc. HV9123 High-Voltage, Current-Mode PWM Controller Features ►► 10 to 450V input vol.
Manufacture Supertex Inc
Datasheet
Download HV9123 Datasheet




HV9123
Supertex inc.
HV9123
High-Voltage,
Current-Mode PWM Controller
Features
10 to 450V input voltage range
<1.3mA supply current
>1.0MHz clock
>20:1 dynamic range @ 500kHz
99% Maximum duty cycle version
Low internal noise
Applications
Off-line high frequency power supplies
Universal input power supplies
High density power supplies
Very high efficiency power supplies
Extra wide load range power supplies
General Description
The Supertex HV9123 is a Switch Mode Power Supply
(SMPS) controller subsystem that can start and run directly
from almost any DC input, from a 12V battery to a rectified
and filtered 240VAC line. It contains all the elements required
to build a single-switch converter except for the switch,
magnetic assembly, output rectifier(s) and filter(s).
A unique input circuit allows the HV9123 to self-start directly
from a high voltage input, and subsequently take the power
to operate from one of the outputs of the converter it is
controlling, allowing very efficient operation while maintaining
input-to-output galvanic isolation limited in voltage only by
the insulation system of the associated magnetic assembly.
A ±2% internal bandgap reference, internal operational
amplifier, very high speed comparator, and output buffer
allow production of rugged, high performance, high efficiency
power supplies of 50W or more, which can still be over 80%
efficient at outputs of 1.0W or less. The wide dynamic range of
the controller system allows designs with extremely wide line
and load variations with much less difficulty and much higher
efficiency than usual. The exceptionally wide input voltage
range also allows better usage of energy stored in input
dropout capacitors than with other PWM ICs. Remote on/off
controls allow either latching or nonlatching remote shutdown.
During shutdown, the power required is under 6.0mW.
For detailed circuit and application information, please
refer to application notes AN-H13, AN-H21 to AN-H24.
Functional Block Diagram
FB
15 (19)
COMP DISCHARGE
OSC
IN
OSC
OUT
8 (10)
11 (14)
VREF
16 (20)
BIAS
7 (9)
VDD
Error
Amplifier
+
4V
2V
REF
GEN
Current
Sources
+
+
To
Internal
Circuits
1.2V
OSC
Modulator
Comparator
R
Q
S
Current Limit
Comparator
1 (3)
+VIN
8.1V
+ 8.6V
Pre-regulator/Startup
Note:
Pin numbers in parentheses are for PLCC package.
+
Undervoltage
Comparator
S
Q
R
Doc.# DSFP-HV9123
C031314
To VDD
5 (6)
OUTPUT
6 (8)
-VIN
4 (5)
SENSE
VDD
12 (16)
SHUTDOWN
13 (17)
RESET
Supertex inc.
www.supertex.com



HV9123
Ordering Information
Part Number
Package Options
Packing
HV9123NG-G
16-Lead SOIC
45/Tube
HV9123NG-G M901 16-Lead SOIC
1000/Reel
HV9123NG-G M934 16-Lead SOIC
2500/Reel
HV9123P-G
16-Lead PDIP
24/Tube
HV9123PJ-G
20-Lead PLCC*
48/Tube
HV9123PJ-G M910 20-Lead PLCC*
1000/Reel
-G denotes a lead (Pb)-free / RoHS compliant package
* Obsolescence notice issued for the product in the 20-Lead PLCC package.
Pin Configurations
1 16
1
4
HV9123
16
16-Lead SOIC
16-Lead PDIP
2 1 20
Absolute Maximum Ratings
Parameter
Value
Input voltage, VIN
Device supply voltage, VDD
Logic input voltage
Linear input voltage
Preregulator input current, IIN
(continuous)
450V
15.5V
-0.3V to VDD +0.3V
-0.3V to VDD +0.3V
2.5mA
Operating temperature range
-55°C to +125°C
Storage temperature range
-65°C to +150°C
Power dissipation:
16-Lead SOIC
16-Lead PDIP
20-Lead PLCC
900mW
1000mW
1400mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Typical Thermal Resistance
Package
16-Lead SOIC
θja
83°C/W
16-Lead PDIP
51°C/W
20-Lead PLCC
66°C/W
20-Lead PLCC
Product Marking
Top Marking
HV9123NG
YWW LLLLLLLL
Bottom Marking
CCCCCCCCC AAA
Y = Last Digit of Year Sealed
WW = Week Sealed
L = Lot Number
C = Country of Origin*
A = Assembler ID*
= “Green” Packaging
*May be part of top marking
Package may or may not include the following marks: Si or
16-Lead SOIC
Top Marking
YYWW
HV9123P
LLLLLLLLLL
Bottom Marking
CCCCCCCCCCC
AAA
Y = Last Digit of Year Sealed
WW = Week Sealed
L = Lot Number
C = Country of Origin*
A = Assembler ID*
= “Green” Packaging
*May be part of top marking
Package may or may not include the following marks: Si or
16-Lead PDIP
Top Marking
YY = Year Sealed
YYWW AAA
HV9123PJ
WW = Week Sealed
LLLLLLLLLL L = Lot Number
Bottom
Marking
A
C
=
=
Assembler
Country of
ID
Origin*
= “Green” Packaging
CCCCCCCCCCC *May be part of top marking
Package may or may not include the following marks: Si or
20-Lead PLCC
Doc.# DSFP-HV9123
C031314
Supertex inc.
2 www.supertex.com







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