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参数资料
| 型号： | AS3648-ZWLT |
| 厂商： | ams |
| 文件页数： | 2/39页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR 2000MA FLASH 13WLCSP |
| 标准包装： | 10,000 |
| 恒定电压： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 2 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 闪灯/白光 |
| 频率： | 4MHz |
| 电源电压： | 2.7 V ~ 4.4 V |
| 输出电压： | 2.8 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 13-UFBGA，WLCSP |
| 供应商设备封装： | 13-WLCSP（2.25x1.5） |
| 包装： | 带卷 (TR) |
| 工作温度： | -30°C ~ 85°C |
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Datasheet
AS3648
2000mA High Current LED Flash Driver
1 General Description
The AS3648 is an inductive high efficient DCDC step up
converter with two current sinks. The DCDC step up
converter operates at a fixed frequency of 4MHz and
includes soft startup to allow easy integration into noise
sensitive RF systems. The two current sinks can oper-
ate in flash / torch / assist (=video) light modes.
The AS3648 includes flash timeout, overvoltage, over-
temperature, undervoltage and LED short circuit protec-
2 Key Features
?? High efficiency 4MHz fixed frequency DCDC Boost
converter with soft start allows small coils
- Stable even in coil current limit
?? LED current adjustable up to 2000mA
?? Two LED operation or single LED operation (com-
bine LED_OUT1 with LED_OUT2)
?? Automatic current adjustment for low battery voltage
tion functions. A TXMASK/TORCH function reduces the
?? PWM
operation for lower output current for reliable
The AS3648 is controlled by an I C interface and has a
flash current in case of parallel operation to the RF
power amplifier and avoids a system shutdown. Alterna-
tively this pin can be used to directly operate the torch
light directly.
2
hardware automatic shutdown if SCL=0 for 100ms.
Therefore no additional enable input is required for shut-
light output of the LED; running at 31.25kHz to avoid
audible noise
?? Protection functions:
Automatic Flash Timeout timer to protect the LED(s)
Overvoltage and undervoltage Protection
Overtemperature Protection
LED short/open circuit protection
?? I
ting down of the device once the system shuts down.
2
C Interface with automatic shutdown
?? 5V
constant voltage mode operation
?? Available
in tiny WL-CSP Package, 13 balls 0.5mm
The AS3648 is available in a space-saving WL-CSP
package measuring only 2.25x1.5x0.6mm and operates
over the -30oC to +85oC temperature range.
Figure 1. Typical Operating Circuit
pitch 2.25x1.5x0.6mm, package size
3 Applications
Flash/torch/videolight for smartphones, feature-phones,
tablets, DSCs, DVCs
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS3648-ZWLT-500 | 功能描述:IC WHITE LED FLASH DVR 13WLCSP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| AS36490FLF | 制造商:TT Electronics / IRC 功能描述:AS36490FLF |
| AS36490HLF | 制造商:TT Electronics / IRC 功能描述:AS36490HLF |
| AS36490JLF | 制造商:TT Electronics / IRC 功能描述:AS36490JLF |
| AS36491FLF | 制造商:TT Electronics / IRC 功能描述:AS36491FLF |
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