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LM3554TME/NOPB PDF预览

LM3554TME/NOPB

更新时间： 2023-09-03 20:31:19
品牌 Logo 应用领域
德州仪器 - TI 升压转换器驱动接口集成电路驱动器
页数 文件大小 规格书
47页 4365K
描述
具有 1.2A 双路高侧 LED 驱动器和 I2C 兼容接口的同步升压转换器 | YFQ | 16 | -30 to 85

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中文翻译

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LM3554TME/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：BGA
包装说明：VFBGA,针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.12数据输入模式：SERIAL
输入特性：STANDARD接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：S-XBGA-B16JESD-609代码：e1
长度：1.6545 mm湿度敏感等级：1
复用显示功能：NO功能数量：1
区段数：2端子数量：16
最高工作温度：85 °C最低工作温度：-30 °C
输出特性：CONSTANT-CURRENT封装主体材料：UNSPECIFIED
封装代码：VFBGA封装形状：SQUARE
封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.675 mm
最大供电电压：5.5 V最小供电电压：2.5 V
标称供电电压：3.6 V表面贴装：YES
温度等级：OTHER端子面层：Tin/Silver/Copper (Sn/Ag/Cu)
端子形式：BALL端子节距：0.4 mm
端子位置：BOTTOM处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：1.6545 mmBase Number Matches：1

LM3554TME/NOPB 数据手册

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Sample &  
Buy  
Support &  
Community  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
LM3554  
SNVS549C –JUNE 2009–REVISED FEBRUARY 2016  
LM3554 Synchronous Boost Converter With 1.2-A Dual High-Side LED Drivers and I2C-  
Compatible Interface  
1 Features  
3 Description  
The LM3554 is a 2-MHz fixed-frequency, current-  
mode synchronous boost converter. The device is  
designed to operate as a dual 600-mA (1.2 A total)  
constant-current driver for high-current white LEDs, or  
as a regulated 4.5-V or 5-V voltage source.  
The main features include: an I2C-compatible  
interface for controlling the LED current or the desired  
output voltage, a hardware flash enable input for  
direct triggering of the flash pulse, and dual TX inputs  
which force the flash pulse into a low-current torch  
mode allowing for synchronization to RF power  
amplifier events or other high-current conditions.  
Additionally, an active high hardware enable (HWEN)  
input provides a hardware shutdown during system  
software failures.  
1
•
•
Input Voltage: 2.5 V to 5.5 V  
Programmable 4.5-V or 5-V Constant Output  
Voltage  
•
•
Dual High-Side Current Sources  
Grounded Cathode Allowing for Better Heat  
Sinking and LED Routing  
•
•
•
> 90% Efficiency  
Ultra-Small Solution Size: < 23 mm2  
Four Operating Modes: Torch, Flash, LED  
Indicator, and Voltage Output  
•
Accurate and Programmable LED Current from  
37.5 mA to 1.2 A  
•
•
•
•
•
Hardware Flash and Torch Enable  
Five protection features are available within the  
LM3554 including a software selectable input voltage  
monitor, an internal comparator for interfacing with an  
external temperature sensor, four selectable current  
limits to ensure the battery current is kept below a  
predetermined peak level, an overvoltage protection  
feature to limit the output voltage during LED open  
circuits, and an output short circuit protection which  
limits the output current during shorts to GND.  
LED Thermal Sensing and Current Scaleback  
Software Selectable Input Voltage Monitor  
Programmable Flash Timeout  
Dual Synchronization Inputs for RF Power-  
Amplifier Pulse Events  
•
•
Open and Short LED Detection  
Active High Hardware Enable for Protection  
Against System Faults  
400-kHz I2C-Compatible Interface  
Device Information(1)  
•
PART NUMBER  
LM3554  
PACKAGE  
BODY SIZE (MAX)  
2 Applications  
1.685 mm × 1.685  
mm  
DSBGA (16)  
•
•
•
Camera Phone LED Flash Controller  
Class D Audio Amplifier Power  
LED Current Source Biasing  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Typical Application Circuit  
2.2 µH  
4.5-V or 5-V DC Power Rail  
4.7 µF  
SW  
IN  
OUT  
2.5 V œ 5.5 V  
4.7 µF  
VBIAS  
HWEN  
SCL  
LED1  
LED2  
Flash  
LEDs  
SDA  
RBIAS  
D2  
D1  
STROBE  
TX1/TORCH/  
GPIO1  
ENVM/TX2  
LEDI/NTC  
Indicator  
LED  
2 kΩ  
Thermistor  
/GPIO  
0.1 µF  
GND  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
 
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LM3554TME/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM3554TMX/NOPB TI

类似代替

 具有 1.2A 双路高侧 LED 驱动器和 I2C 兼容接口的同步升压转换器 | YFQ

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LM3554TMX/NOPB TI

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 		具有 1.2A 双路高侧 LED 驱动器和 I2C 兼容接口的同步升压转换器 | YFQ
LM3555 NSC

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 		Synchronous Boost Converter with 500 mA High Side LED Driver and Dual-Mode Control Interfa
LM3555 TI

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 		具有 500mA 高侧 LED 驱动器和双模式控制接口的同步升压转换器
LM3555TLE/NOPB TI

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 		具有 500mA 高侧 LED 驱动器和双模式控制接口的同步升压转换器 | YZR | 1
LM3555TLX/NOPB TI

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 		具有 500mA 高侧 LED 驱动器和双模式控制接口的同步升压转换器 | YZR | 1
LM3556 TI

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 		1.5A Synchronous Boost LED Flash Driver w/ High-Side Current Source
LM3556_14 TI

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 		1.5A Synchronous Boost LED Flash Driver w/ High-Side Current Source
LM3556TME/NOPB TI

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 		LM3556 1.5A 感应式白光 LED 相机闪存器件 | YFQ | 16 | -40
LM3556TMX/NOPB TI

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 		LM3556 1.5A 感应式白光 LED 相机闪存器件 | YFQ | 16 | -40

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