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| 型号： | SSL3250AHN/C1,528 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 11/26页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR PHOTO FLASH 16-HVQFN |
| 产品培训模块： | LED Controllers |
| 标准包装： | 1 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1.08MHz ~ 1.32MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出电压： | 9.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘 |
| 供应商设备封装： | 16-HVQFN |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 568-4718-6 |
NXP Semiconductors
Average
inductor
SSL3250A
Photo flash dual LED driver
current
t < 50 μ s
T × Mask
Flash
014aaa296
Fig 9.
The inductor current during TxMask
8.3.7 Indicator LED
The indicator LED is connected between the V BAT and the dedicated indicator LED current
input pin. Internally a linear current sink controls the indicator LED current to reach the
required current level.
In I 2 C mode, the indicator LED current can be set between 2.5 mA and 17.5 mA. The
internal 3-bit register sets the actual indicator LED according to the formula in Equation 6 .
The external resistor R_IND is ignored.
I I _ IND = Register × 2.5 mA
(6)
When using the Direct enable mode, the indicator current can be determined by an
external resistor R_IND. The indicator current is defined using Equation 7 . It can be set
between 2.5 mA and 20 mA. When not using the resistor, the indicator current will be set
to a default level of 10 mA. This current is similar to connecting an external resistor of
50 k Ω . Entering Flash mode in Direct enable mode can be done using the EN1 and EN2
pins. The LED will stay on in Flash mode for as long as the enable pins are set.
I I _ IND = ------------------ × 10 mA
50 k Ω
R R _ IND
(7)
If there is no resistor connected to the R_IND pin, it can either be left unconnected or
connected to VIN. Never connect the R_IND pin to GND since it will cause unnecessary
reference currents to flow to GND.
Figure 10 illustrates the Indicator mode current setting equation for I 2 C, while Figure 11
illustrates the Indicator mode current setting equation for the Direct enable mode.
SSL3250A_5
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 — 16 December 2009
11 of 26
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SSL3252 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Smart, simple solutions for the 12 most common design concerns |
| SSL3252UK/C2,515 | 功能描述:LED照明驱动器 Photo flash LED driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| SSL33 | 功能描述:肖特基二极管与整流器 Low VF 3Amp 30v SMD Schottky Rect RoHS:否 制造商:Skyworks Solutions, Inc. 产品:Schottky Diodes 峰值反向电压:2 V 正向连续电流:50 mA 最大浪涌电流: 配置:Crossover Quad 恢复时间: 正向电压下降:370 mV 最大反向漏泄电流: 最大功率耗散:75 mW 工作温度范围:- 65 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-143 封装:Reel |
| SSL33 R6 | 制造商:SKMI/Taiwan 功能描述:Diode Schottky 30V 3A 2-Pin SMC T/R |
| SSL34 | 功能描述:肖特基二极管与整流器 Low VF 3Amp 40v SMD Schottky Rect RoHS:否 制造商:Skyworks Solutions, Inc. 产品:Schottky Diodes 峰值反向电压:2 V 正向连续电流:50 mA 最大浪涌电流: 配置:Crossover Quad 恢复时间: 正向电压下降:370 mV 最大反向漏泄电流: 最大功率耗散:75 mW 工作温度范围:- 65 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-143 封装:Reel |
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