PT6985 [PTC]
High Precision Buck LED Driver;
| 型号： | PT6985 |
| 厂家： | 
PRINCETON TECHNOLOGY CORP |
| 描述： | High Precision Buck LED Driver |
| 文件： | 总4页 (文件大小：363K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PT6985
High Precision Buck LED Driver
DESCRIPTION
FEATURES
The PT6985 is a non-isolated buck and applicable to 85V
AC ~ 265V AC input voltage rangefor LED lighting.
Integrates 500V Power MOSFET
CRM Mode
No Auxiliary Winding for Sensing and Supplying
Low Operating Current
The PT6985 integrates high precision current detection
and constant current circuit, realizes high precision LED
constant current and excellent line voltage regulation. The
PT6985 works in CRM mode, the LED current is constant
with inductance and LED output voltage change, good
load regulation。
Universal Input Voltage Range
±5% Output Current Accuracy
LED Open/Short Circuit Protection
VIN Under Voltage Protection
CS Resistor Short Circuit Protection
Temperature Intelligent Control
System Auto-Restart Function
SOP-8 Package
The PT6985 integrates a 500V power MOSFET, uses the
source driver architecture, with a low operating current, so
the PT6985 doesn’t need the auxiliary winding for sensing
the output current and supplying the chip. It has a few
external components, saves the cost and volume system.
APPLICATIONS
LED Bulb lamp, LED PAR lamp
LED Tube lamp
Other LED lighting
The multi-protection features of PT6985 greatly enhance
the system reliability and safety. The PT6985 provides CS
resistance short-circuit protection, short LED protection,
open LED protection, VIN under voltage protection,
temperature intelligent control, etc.
BLOCK DIAGRAM
Tel: 886-66296288‧Fax: 886-29174598‧http://www.princeton.com.tw‧2F, 233-1, Baociao Road, SindianDist.,New Taipei City 23145, Taiwan
PT6985
TYPICAL APPLICATION
V1.1
2
February 2016
PT6985
ORDER INFORMATION
Valid Part Number
PT6985-S
Package Type
8-Pin, SOP
8-Pin, DIP
Top Code
PT6985-S
PT6985-D
PT6985-D
PIN CONFIGURATION
PIN DESCRIPTION
Pin Name
Description
Pin No.
GND
Ground
1
LED open-circuit voltage protection Settings, by connecting the
resistance to the ground
SET
2
NC
VIN
No connection
Power supply pin
3
4
DRN
Power MOSFET Drain
5, 6
Current sense pin, sense the inductor current while the switch is
on-state.
CS
7, 8
V1.1
3
February 2016
PT6985
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 Dist., New Taipei City 23145, Taiwan
Tel: 886-2-66296288
Fax: 886-2-29174598
http://www.princeton.com.tw
V1.1
10
February 2016
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