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ML4822IP

Description
Power Factor Controller, Current-mode, 0.5A, PDIP14, PLASTIC, DIP-14
CategoryPower/power management    The power supply circuit   
File Size117KB,12 Pages
ManufacturerRochester Electronics
Websitehttps://www.rocelec.com/
Download Datasheet Parametric Compare View All

ML4822IP Overview

Power Factor Controller, Current-mode, 0.5A, PDIP14, PLASTIC, DIP-14

ML4822IP Parametric

Parameter NameAttribute value
package instructionDIP,
Reach Compliance Codeunknown
ECCN codeEAR99
Analog Integrated Circuits - Other TypesPOWER FACTOR CONTROLLER
control modeCURRENT-MODE
Control TechnologyRESONANT CONTROL
Maximum input voltage12.8 V
Minimum input voltage11.2 V
Nominal input voltage13.7 V
JESD-30 codeR-PDIP-T14
length19.05 mm
Number of functions1
Number of terminals14
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current0.5 A
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Package shapeRECTANGULAR
Package formIN-LINE
Maximum seat height4.32 mm
surface mountNO
Switch configurationSINGLE
Temperature levelINDUSTRIAL
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
width7.62 mm
Base Number Matches1
May 1997
ML4822
ZVS Average Current PFC Controller
GENERAL DESCRIPTION
The ML4822 is a PFC controller designed specifically for
high power applications. The controller contains all of the
functions necessary to implement an average current
boost PFC converter, along with a Zero Voltage Switch
(ZVS) controller to reduce diode recovery and MOSFET
turn-on losses.
The average current boost PFC circuit provides high
power factor (>98%) and low Total Harmonic Distortion
(THD). Built-in safety features include undervoltage
lockout, overvoltage protection, peak current limiting, and
input voltage brownout protection.
The ZVS control section drives an external ZVS MOSFET
which, combined with a diode and inductor, soft switches
the boost regulator. This technique reduces diode reverse
recovery and MOSFET switching losses to reduce EMI and
maximize efficiency.
FEATURES
s
s
s
s
s
s
s
Average current sensing, continuous boost, leading
edge PFC for low total harmonic distortion and near
unity power factor
Built-in ZVS switch control with fast response for high
efficiency at high power levels
Average line voltage compensation with brownout
control
Current fed gain modulator improves noise immunity
and provides universal input operation
Overvoltage comparator eliminates output “runaway”
due to load removal
UVLO, current limit, and soft-start
Precision 1% reference
BLOCK DIAGRAM
(Pin configuration shown for 14-pin package)
VEAO
1
8
GND
2
IEAO
OVP
VCC
VCCZ
13.5V
2.7V
12
FB
14
2.5V
IAC
4
VRMS
5
ISENSE
3
RTCT
6
+
VEA
R+
FB
+
+
GAIN
MODULATOR
R–
IEA
+
I LIMIT
–1V
S
Q
+
R
PFC OUT
11
OSC
VCCZ
REF
S
R
Q
Q
ZVS OUT
10
13
REF
S
R
Q
Q
ZV SENSE
7
+
PWR GND
9
REV. 1.0 10/12/2000

ML4822IP Related Products

ML4822IP ML4822IS
Description Power Factor Controller, Current-mode, 0.5A, PDIP14, PLASTIC, DIP-14 Power Factor Controller, Current-mode, 0.5A, PDSO16, SOIC-16
package instruction DIP, SOP,
Reach Compliance Code unknown unknown
ECCN code EAR99 EAR99
Analog Integrated Circuits - Other Types POWER FACTOR CONTROLLER POWER FACTOR CONTROLLER
control mode CURRENT-MODE CURRENT-MODE
Control Technology RESONANT CONTROL RESONANT CONTROL
Maximum input voltage 12.8 V 12.8 V
Minimum input voltage 11.2 V 11.2 V
Nominal input voltage 13.7 V 13.7 V
JESD-30 code R-PDIP-T14 R-PDSO-G16
length 19.05 mm 10.34 mm
Number of functions 1 1
Number of terminals 14 16
Maximum operating temperature 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C
Maximum output current 0.5 A 0.5 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code DIP SOP
Package shape RECTANGULAR RECTANGULAR
Package form IN-LINE SMALL OUTLINE
Maximum seat height 4.32 mm 2.72 mm
surface mount NO YES
Switch configuration SINGLE SINGLE
Temperature level INDUSTRIAL INDUSTRIAL
Terminal form THROUGH-HOLE GULL WING
Terminal pitch 2.54 mm 1.27 mm
Terminal location DUAL DUAL
width 7.62 mm 7.52 mm
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