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LTC3789IUFD#TRPBF

更新时间： 2024-11-06 13:01:19
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
32页 395K
描述
LTC3789 - High Efficiency, Synchronous, 4-Switch Buck-Boost Controller; Package: QFN; Pins: 28; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3789IUFD#TRPBF 技术参数

是否Rohs认证：符合生命周期：Transferred
零件包装代码：QFN包装说明：HVQCCN, LCC28,.16X.2,20
针数：28Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.16Is Samacsys：N
其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8V TO 38V模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：38 V最小输入电压：4 V
标称输入电压：15 VJESD-30 代码：R-PQCC-N28
JESD-609代码：e3长度：5 mm
湿度敏感等级：1功能数量：1
端子数量：28最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：0.1 A
标称输出电压：5.5 V封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC28,.16X.2,20
封装形状：RECTANGULAR封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：225认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PHASE-SHIFT
最大切换频率：710 kHz技术：CMOS
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4 mmBase Number Matches：1

LTC3789IUFD#TRPBF 数据手册

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LT3796  
100V Constant-Current and  
Constant-Voltage Controller  
with Dual Current Sense  
DESCRIPTION  
FEATURES  
The LT®3796 is a DC/DC controller designed to regulate a  
constant-current or constant-voltage and is ideal for driv-  
ing LEDs. It drives a low side external N-channel power  
MOSFET from an internal regulated 7.7V supply. The fixed  
frequency and current mode architecture result in stable  
operation over a wide range of supply and output volt-  
ages. Two ground referred voltage FB pins serve as the  
input for several LED protection features, and also allow  
the converter to operate as a constant-voltage source.  
The LT3796 features a programmable threshold output  
sense amplifier with rail-to-rail common mode range. The  
LT3796 also includes a separate high side current sensing  
amplifier that is gain configurable with two resistors. The  
TG pin inverts and level shifts the PWM signal to drive  
the gate of the external PMOS. The PWM input provides  
LED dimming ratios of up to 3000:1, and the CTRL input  
provides additional analog dimming capability.  
n
3000:1 True Color PWM™ Dimming  
n
Wide Input Voltage Range: 6V to 100V  
n
Current Monitoring Up to 100V  
n
High Side PMOS Disconnect and PWM Switch Driver  
n
Constant-Current and Constant-Voltage Regulation  
n
Dual Current Sense Amplifiers with Reporting  
n
C/10 Detection for Battery and SuperCap Charging  
n
Linear Current Sense Threshold Programming  
n
Short-Circuit Protection  
n
Adjustable Frequency: 100kHz to 1MHz  
n
Frequency Synchronization  
n
Programmable Open LED Protection with VMODE Flag  
n
Programmable Undervoltage Lockout with Hysteresis  
n
Soft-Start with Programmable Fault Restart Timer  
n
Low Shutdown Current: <1μA  
n
Available in 28-Lead TSSOP Package  
APPLICATIONS  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and True  
Color PWM is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners. Protected by U.S. Patents, including 7199560, 7321203,  
7746300.  
n
High Power LED, High Voltage LED  
n
Battery and SuperCap Chargers  
n
Accurate Current Limited Voltage Regulators  
TYPICAL APPLICATION  
Boost LED Driver with Input Current Monitor  
Efficiency vs VIN  
22µH  
50mΩ  
V
IN  
100  
9V TO 60V  
100V (TRANSIENT)  
2.2µF  
×4  
2k  
95  
2.2µF  
×3  
1M  
1M  
499k  
V
V
CSP  
CSN  
GATE  
90  
IN  
S
13.7k  
EN/UVLO  
118k  
85  
97.6k  
V
SENSE  
REF  
15mΩ  
CTRL  
80  
75  
70  
LT3796  
GND  
FB1  
ISP  
C
SOUT  
CSOUT  
PWM  
10nF  
100k  
40.2k  
100k  
PWM  
ISMON  
SYNC  
0
10  
20  
30  
(V)  
40  
50  
60  
0.1µF  
620mΩ  
INTV  
CC  
V
IN  
ISN  
TG  
3796 TA01b  
FAULT  
FAULT  
INTV  
CC  
INTV  
CC  
VMODE  
VMODE  
V
C
RT  
FB2  
SS  
4.7µF  
85V LED  
400mA  
31.6k  
250kHz  
10k  
0.1µF  
10nF  
3796 TA01a  
3796f  
1
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中文翻译

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LTC3789IUFD#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3789IUFD#PBF Linear

类似代替

 LTC3789 - High Efficiency, Synchronous, 4-Switch Buck-Boost Controller; Package: QFN; Pins

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