PT5622_10 PTC | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 4
Technical content
Three-level (On/Off) Ballast Controller Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
DESCRIPTION
The PT5622 is an electronic ballast controller IC intended for dimming product with ordinary switch. The features of the controller IC include negative-feedback closed-loop control of the lamp current, programmable preheat time and preheat frequency, low start-up current, precise oscillating frequency and easy applications. PT5622 is available in both DIP16/SOP16 packages. APPLICATION
- Adjustable to various types of fluorescent lamps/CFLs
FEATURES
- Electronic ballast IC with dimming function using ordinary switches
- Integrated MCU
- Negative-feedback control of the lamp current, supporting low luminance ignition
- 2/3-level selection available for low to high or high to low luminance dimming mode
- Programmable preheat time
- Programmable preheat frequency, sweeping frequency ignition
- Programmable delay time from switch-off to reset state
- Programmable delay time from switch-on to preheat mode
- Fixed dead time
- Supporting DIP16/SOP16 packages BLOCK DIAGRAM
V1.0 2 APPLICATION CIRCUIT AC: 120V, OUTPUT POWER 15W/7W/3W
V1.0 3 ORDER INFORMATION Valid Part Number Package Type Top Code PT5622-D-001 16 Pins, DIP, 300mil PT5622-D-001 PT5622-D-002 16 Pins, DIP, 300mil PT5622-D-002 PT5622-D-003 16 Pins, DIP, 300mil PT5622-D-003 PT5622-D-004 16 Pins, DIP, 300mil PT5622-D-004 PT5622-S-001 16 Pins, SOP, 150mil PT5622-S-001 PT5622-S-002 16 Pins, SOP, 150mil PT5622-S-002 PT5622-S-003 16 Pins, SOP, 150mil PT5622-S-003 PT5622-S-004 16 Pins, SOP, 150mil PT5622-S-004 PIN CONFIGURATION PIN CONFIGURATION Pin Name Description Pin No. GND Ground 1 VREG1 Standby power supply for internal MCU when the AC power supply is switched off 2 RF Internal reference current bias setting pin, its voltage is fixed at 3.2V. An external resistor is connected from this pin to GND to determine the internal reference current, typical value is 68K RP Preheat frequency setting pin, its output current is 29µA. An external resistor is connected to this pin and introduce a voltage for VCO 4 CP Preheat time and sweeping frequency ignition setting pin 5 SW2, SW1 3-level dimming setting pin, different states of SW2 and SW1 leads to change output voltage of external resistive divider, and this voltage is introduced to the input of the dimming pin DIM. 6, 7 DIM Dimming input pin. Accept the output vo ltage of external resistive divider 8 IL Lamp current sampling pin 9 CT An external capacitor is connected to this pin to determine oscillating frequency 10 RT An external resistor is connected to this pin to determine oscillating frequency 11 DL Switch delay time setting pin. A capacitor is connected to this pin. When an AC input is detected by ACDET pin, 0.6µA current is charged to the capacitor. If the AC input is not switched-off before the capacitor reaching 3.8V, the system enters preheat mode ACDET AC input detection pin, used for detecting t he switch state and on-off times of AC input 13 LO Low-side gate driver output 14 VDD Power supply, operating voltage is 13V 15 HO High-side gate driver output 16
V1.0 4 IMPORTANT NOTICE Princeton Technology Corporation (PTC ) reserves the right to make co rrections, 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