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PT5613
PFC + Ballast Control IC
DESCRIPTION
The PT5613 is a ballast control IC, with the Power
Factor Correction (PFC) control and the 650V
half-bridge driver, designed to drive all types of
fluorescent lamps. In the Ballast Control section, the
features such as programmable preheat time and
frequency, programmable and precise run frequency,
self-adapting ignition time regulator and auto-restart
for lamp replacement, provide a high degree of
flexibility for the ballast design engineers. The
protection features include the filaments detection,
ignition failure, rectifier effect and end-of-life protection
for lamp and the over-current protection for half bridge.
It is easy to support full protection in multi-lamp design.
In the PFC control section, there are two control
modes: Critical Conduction Mode for nominal load and
Discontinuous Conduction Mode for light load. The
PFC features include internal fixed maximum on-time,
programmable current limitation, over voltage and
open loop protections. The PFC control, with the
controlled on-time and internal THD optimization,
provides the quality of high PF and low THD.
APPLICATION
FEATURES
BALLAST CONTROL
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650V Half-Bridge Driver
Programmable Preheat Time and Frequency
Fixed Dead Time
Programmable and Precise Run Frequency
Self-adapting Ignition Time Regulator
Ignition Failure Protection
Rectifier Effect and End-Of-Life Protection
Programmable Half-Bridge Over-Current Protection
Low side and High side Filaments Detection
Auto-Restart for Lamp Replacement
Support Multi-Lamp Design
PFC CONTROL
• Critical Conduction Mode (CRM) Control
• Discontinuous Conduction Mode (DCM) Control in
light load condition
• Programmable Current Limitation
• Fixed Maximum On-Time (MOT)
• PFC Over Voltage and Open Loop Protection
• Electronic Ballast for all types of Fluorescent
Lamps
TYPICAL APPLICATION
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
PT5613
BLOCK DIAGRAM
V1.0
2
January 2011
PT5613
STATE DIAGRAM
V1.0
3
January 2011
PT5613
ORDER INFORMATION
Valid Part Number
PT5613-S
Package Type
20 Pins, SOP, 300mil
Top Code
PT5613-S
PIN DESCRIPTION
PIN DESCRIPTION
Pin Name
VDD
GND
LVS1
LVS2
CP
RRUN
RPH
RF
COMP
INV
ZCD
CS_PFC
GD
SD
CS_LS
LO
NC
VS
HO
VB
V1.0
Description
IC power supply
System ground
Lamp1 voltage sensing
Lamp2 voltage sensing
Preheat time setting
Run frequency setting
Preheat frequent setting
Internal current bias control, connecting a external resistor (68K, typ.) to GND
PFC error amplifier compensation
PFC error amplifier inverting input
PFC zero current detection
PFC current sensing
PFC gate driver output
Low side filament sensing and shut-down control
Half-bridge current sensing
Low side gate driver output
No connection
High side driver floating ground
High side gate driver output
High side driver floating supply
4
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
January 2011
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