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参数资料
| 型号： | UBA2015P/1,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 14/42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
The preheat frequency for UBA2015 and UBA2015A can also be regulated via pin PH/EN.
UBA2015 and UBA2015A support current controlled preheat and fixed frequency preheat.
During preheat the output voltage of pin PH/EN is V ph(PH/EN) . The output current that an
external resistor R ext(PH/EN) connected to this pin sinks is compared to 4 ? 5 of the output
current of the VCO (the current at pin CF with no fault condition present and the capacitor
at that pin being charged minus the same current at f sw(low) ). As long as the output current
of the VCO is bigger the frequency is being decreased (by charging pin CIFB with
I ch(CIFB) ). If the current through the external resistor is bigger the frequency will be
increased (by discharging pin CIFB with I dch(CIFB) ).
Current and fixed frequency control mechanisms are active at the same time. For fixed
frequency preheat using pin PH/EN, the half-bridge current sense resistor connected to
pin SLHB should be small enough not the activate the current control mechanism. If
current controlled preheat is used, pin PH/EN should be left open (except of course for the
open collector or open drain that drives the enable function). The preheat time t to(ph) can
be set with capacitor C CPT on pin CPT.
7.4.5 Ignition
After the Preheat state the IC enters the Ignition state. During the Ignition state the
switching frequency is decreased by charging pin CIFB with I ch(CIFB) . This will result in
and lamp-on or f sw(low) (lowest frequency) is detected. Lamp-on detection occurs when the
average absolute voltage on pin IFB is above lamp-on detection threshold V th(lod)(IFB) and
the voltage on pin VFB is more then 50 % of each clock cycle below the lamp-on detection
threshold V th(lod)(VFB) and after a delay t d(lod) .
If either saturation, overvoltage or hard switching regulation (UBA2016A only) is triggered
it will overrule the frequency sweep down and hold the frequency at the border where the
fault appeared and start the fault timer. When the fault timeout t to(fault) is reached the IC
enters Auto-restart state if it was the first ignition attempt, otherwise it will go to the Stop
7.4.6 Auto-restart
The Auto-restart state is entered after a fault time out in the Ignition state during the first
ignition attempt. See Figure 9 “ State diagram ” . When the IC is in Auto-restart state, it
draws supply current I restart(VDD) . This will slowly discharge the buffer capacitor on pin
VDD until the voltage on this pin drops below V restart(VDD) . The IC then enters the Standby
state. Here the VDD capacitor will be charged again to start a second ignition attempt. The
bleeder current must be between standby current I stb(VDD) and I restart(VDD) . A time delay
can be set between the two ignition attempts with the capacitor at pin VDD to reduce
stress on the HB components.
7.4.7 Burn
In Burn state the lamp current regulation and all protection circuits are active. The boost
function (available in UBA2016A only) is also enabled.
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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