Download

PT5634
Power Factor Correction Control IC
DESCRIPTION
The PT5634 is a Power Factor Correction control IC for
electronic ballast and switching mode power supply
application. With a wide bandwidth error amplifier and a
wide linear operating range multiplier, the PT5634 is
available to operate in Critical Conduction Mode and
implement a high PF and excellent THD in wide input
voltage application. Furthermore, PT5634 provides a
low start-up current and operating current, a precise
over-voltage protection and the disable function.
FEATURES
•
•
•
•
•
•
•
Critical Conduction Mode (CRM) control
Very low start-up current (30μA)
Precise reference voltage (±1%)
Precise adjustable output over-voltage protection
Restart timer
Leading edge blocking time
Disable function
APPLICATIONS
•
•
Electronic ballast
AC-DC adaptor and switching mode power supply
BLOCK DIAGRAM
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
PT5634
TYPICAL APPLICATION
V1.0
2
May 2012
PT5634
ORDER INFORMATION
Valid Part Number
PT5634-S
Package Type
8 Pins, SOP, 150mil
Top Code
PT5634-S
PIN CONFIGURATION
PIN DESCRIPTION
Pin Name
INV
COMP
MULT
CS
ZCD
GND
GD
VCC
V1.0
Description
Error amplifier inverting input
Error amplifier compensation
Multiplier input
Current sense
Zero current detection
System ground
Gate driver output
IC power supply
3
Pin No.
1
2
3
4
5
6
7
8
May 2012
PT5634
IMPORTANT NOTICE
Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements,
improvements, and other changes to its products and to discontinue any product without notice at any time.
PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No
circuit patent licenses are implied.
Princeton Technology Corp.
2F, 233-1, Baociao Road,
Sindian, Taipei 23145, Taiwan
Tel: 886-2-66296288
Fax: 886-2-29174598
http://www.princeton.com.tw
V1.0
9
May 2012