- 您现在的位置：买卖IC网 > PDF目录21004 > SSL21083T/1,118 (NXP Semiconductors)IC LED DRIVER 600V 8-SOIC PDF资料下载
参数资料
| 型号： | SSL21083T/1,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 8/23页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER 600V 8-SOIC |
| 标准包装： | 1 |
| 系列： | GreenChip™ |
| 拓扑： | PWM，降压（降压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，通用 |
| 频率： | 25kHz ~ 200kHz |
| 电源电压： | 8 V ~ 14 V |
| 输出电压： | 600V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 125°C |
| 其它名称： | 568-9560-6 |
NXP Semiconductors
SSL21081T/2T/3T/4T
GreenChip drivers for LED lighting
8.4.1 UnderVoltage LockOut (UVLO)
When the voltage on the VCC pin drops lower than V CC(stop) , the IC stops switching. An
attempt is then made to restart by supplying V CC from the HV pin voltage.
8.4.2 Leading-Edge Blanking (LEB)
To prevent false detection of the short-winding or overcurrent, a blanking time following
switch-on is implemented. When the internal MOSFET switch turns on there can be a
short current spike due to capacitive discharge of voltage over the drain and source.
During the LEB time (t leb ), the spike is disregarded.
8.4.3 OverCurrent Protection (OCP)
The SSL2108X contains a highly accurate peak current detector. It triggers when the
voltage at the SOURCE pin reaches the peak-level V th(ocp)SOURCE . The current through
the switch is sensed using a resistor connected to the SOURCE pin. The sense circuit is
activated following LEB time t leb . As the LED current is half the peak current (by design), it
automatically provides protection for maximum LED current during operation. There is a
propagation delay between overcurrent detection and the actual closure of the switch
t d(ocp-swoff) . Due to the delay, the actual peak current is slightly higher than the OCP level
set by the resistor in series to the SOURCE pin.
8.4.4 OverTemperature Protection (OTP)
When the internal OTP function is triggered at a certain IC temperature (T th(act)otp ), the
converter stops operating. The OTP safe-restart protection and the IC restarts again with
switching resuming when the IC temperature drops lower than T th(rel)otp .
8.4.5 Brownout protection
Brownout protection is designed to limit the lamp power when the input voltage drops
close to the output voltage level. Since the input power has to remain constant, the input
current would otherwise increase to a level that is too large for the input circuitry. For the
SSL2108X, there is a maximum limit on the on-time of the switch t on(high) . The rate of
current rise in the coil during the on-phase is proportional to the difference between input
voltage and output voltage. Therefore, the peak current cannot be reached before t on(high)
and as a result the average output current to the LEDs is reduced.
Using the SO12 package, the t on(high) can be lowered by connecting a capacitor to the
TONMAX pin. The external capacitor is charged during the primary stroke with I TONMAX . If
V TONMAX level is reached before the t on(high) time, the switch is turned off and the
secondary stroke starts. When no capacitor is connected to the pin, V TONMAX is reached
quickly, shorter than the minimum limit of one microsecond. In this case, or in case the
TONMAX pin is grounded, the internal time constant, t on(high) determines the maximum
on-time.
8.4.6 Short-Winding Protection (SWP)
SWP activates if there is a steep rising current through the MOSFET and thus through the
external resistor connected to the SOURCE pin. This current can occur when there is a
short from the freewheel diode. Additionally, it occurs due to a small/shorted inductor
between the input voltage and the DRAIN pin. If the voltage on the SOURCE pin is greater
than 1.5 V, latched protection is triggered following LEB time t leb . In addition, if V CC drops
lower than V CC(rst) the IC resets the latched protection mode.
SSL21081T_2T_3T_4T
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3.1 — 22 February 2012
? NXP B.V. 2012. All rights reserved.
8 of 23
相关PDF资料 |
PDF描述 |
|---|---|
| REC3-1205SRW/H4/A/SMD/CTRL-R | CONV DC/DC 3W 9-18VIN 05VOUT |
| TH3B226M6R3F1500 | CAP TANT 22UF 6.3V 20% 1411 |
| EBM06DCAD | CONN EDGECARD 12POS R/A .156 SLD |
| GBC06DRTS-S13 | CONN EDGECARD 12POS .100 EXTEND |
| GCC05DREN-S13 | CONN EDGECARD 10POS .100 EXTEND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SSL21084AT/1,118 | 制造商:NXP Semiconductors 功能描述:LED DRVR 9V/12V 12-Pin SO T/R 制造商:NXP Semiconductors 功能描述:SSL21084AT/SO12/REEL13//1 - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC LED DVR DIMMABLE FET 12SOIC |
| SSL21084DB01,598 | 功能描述:LED 照明开发工具 non-dim 230Vac 93mA out Buck Ref des RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| SSL21084DB02,598 | 功能描述:LED 照明开发工具 non-dim 230V 15W Buck Eval brd RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| SSL21084T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip drivers for LED lighting |
| SSL21084T/1 | 制造商:NXP Semiconductors 功能描述:LED DRIVER BUCK 15W MOSFETSO12 制造商:NXP Semiconductors 功能描述:LED DRIVER, BUCK, 15W, MOSFET,SO12 制造商:NXP Semiconductors 功能描述:LED DRIVER, BUCK, 15W, MOSFET,SO12; Topology:Buck; No. of Outputs:1; Driver Case Style:SOIC; Input Voltage Min:2.4V; Input Voltage Max:18V; Dimming Control Type:PWM; Switching Frequency:200kHz; Operating Temperature Min:-40C; ;RoHS Compliant: Yes |
发布紧急采购，3分钟左右您将得到回复。