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| 型号： | UBA2015P/1,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 8/42页 |
| 文件大小： | 0K |
| 描述： | IC LAMP DVR FLUORES 600V 20-DIP |
| 标准包装： | 20 |
| 类型： | CFL/TL 驱动器 |
| 电流 - 电源： | 1.7mA |
| 电源电压： | 11.9 V ~ 13.8 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 20-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 20-DIP |
| 包装： | 管件 |
| 其它名称： | UBA2015P1112 |
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NXP Semiconductors
UBA2016A/15/15A
600 V fluorescent lamp driver
7.2.2 Protection
The PFC incorporates the following protection mechanisms:
? When voltage on pin FBPFC drops below open/short protection threshold voltage
V th(osp)(FBPFC) , the gate is turned off and the start of a new cycle is inhibited. A small
internal filter prevents this protection reacting to a negative spike.
? When pin FBPFC is left open, a pull-down bias current I bias(FBPFC) ensures that the pin
voltage drops below V th(osp)(FBPFC) .
? When voltage at pin FBPFC rises above overvoltage threshold voltage V th(ov)(FBPFC)
the gate immediately turns off. A new cycle will not start while V FBPFC remains above
V th(ov)(FBPFC) . This limits the PFC output voltage. This protection is disabled during the
leading edge blanking time t leb(FBPFC) after GPFC goes high.
? When the t off(PFC)low timer sequence has ended with no demagnetization detected
(V AUXPFC has not risen above V det(demag) ) the on-time of the next cycle will be the no
demagnetization detected PFC on-time t on(PFC)nodemag to prevent excessive current
build up in the coil.
? Bias current I bias(AUXPFC) ensures that pin AUXPFC is HIGH when not connected
ensuring pin GPFC stays LOW.
7.3 Half-bridge driver
The IC incorporates drivers for the half-bridge switches and all related circuits such as
non-overlap, high voltage level shifter, bootstrap circuit for the floating supply and hard
switching and capacitive mode detection.
The UBA2016A/15/15A is designed to drive a half-bridge inverter with an inductive load.
The load consists typically of an inductor with a resonant capacitor and a TL or CFL. A
basic half-bridge application circuit driving a TL is shown in Figure 7 which also shows a
typical IC supply configuration with a start-up bleeder resistor and a dV/dt supply.
V BUS
VDD
GHHB
UBA2016A
UBA2015
UBA2015A
SHHB
FSHB
GLHB
GND
001aam534
Fig 7.
Basic half-bridge and IC supply connection diagram
UBA2016A_15_15A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 16 November 2011
? NXP B.V. 2011. All rights reserved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| UBA2015PN1 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:600 V fluorescent lamp driver with PFC, linear dimming and boost function |
| UBA2015T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:600 V fluorescent lamp driver with PFC, linear dimming and boost function |
| UBA2015T/1 | 制造商:NXP Semiconductors 功能描述:HFTL CNTRL PFC FPH SO20 制造商:NXP Semiconductors 功能描述:HFTL CNTRL, PFC, FPH, SO20 |
| UBA2015T/1,118 | 功能描述:显示驱动器和控制器 600V 0.16mA SO20 RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| UBA2015TN1 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:600 V fluorescent lamp driver with PFC, linear dimming and boost function |
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