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LTC3810IG PDF预览

LTC3810IG

更新时间： 2024-02-15 08:15:52
品牌 Logo 应用领域
凌特 - Linear 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
36页 484K
描述
100V Current Mode Synchronous Switching Regulator Controller

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中文翻译

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LTC3810IG 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：SSOP,
针数：28Reach Compliance Code：compliant
风险等级：5.15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：14 V最小输入电压：6.35 V
标称输入电压：10 VJESD-30 代码：R-PDSO-G28
JESD-609代码：e3长度：10.2 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封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH峰值回流温度（摄氏度）：250
认证状态：Not Qualified座面最大高度：2 mm
表面贴装：YES切换器配置：PUSH-PULL
技术：CMOS温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：5.5 mm
Base Number Matches：1

LTC3810IG 数据手册

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LTC3810  
100V Current Mode  
Synchronous Switching  
Regulator Controller  
FEATURES  
DESCRIPTION  
n
The LTC3810 is a synchronous step-down switching  
regulator controller that can directly step-down voltages  
from up to 100V, making it ideal for telecom and automo-  
tive applications. The LTC3810 uses a constant on-time  
valley current control architecture to deliver very low duty  
cycles with accurate cycle-by-cycle current limit, without  
requiring a sense resistor.  
High Voltage Operation: Up to 100V  
n
Large 1Ω Gate Drivers  
n
No Current Sense Resistor Required  
Dual N-Channel MOSFET Synchronous Drive  
n
n
Extremely Fast Transient Response  
0.5% 0.8V Voltage Reference  
n
n
Programmable Output Voltage Tracking/Soft-Start  
n
Generates 10V Driver Supply from Input Supply  
A precise internal reference provides 0.5% DC accuracy. A  
highbandwidth(25MHz)erroramplifierprovidesveryfast  
line and load transient response. Large 1Ω gate drivers  
allow the LTC3810 to drive multiple MOSFETs for higher  
current applications. The operating frequency is selected  
by an external resistor and is compensated for variations  
n
Synchronizable to External Clock  
n
Selectable Pulse Skip Mode Operation  
n
Power Good Output Voltage Monitor  
n
Adjustable On-Time/Frequency: t  
< 100ns  
ON(MIN)  
n
n
n
n
Adjustable Cycle-by-Cycle Current Limit  
Programmable Undervoltage Lockout  
Output Overvoltage Protection  
28-Pin SSOP Package  
in V and can also be synchronized to an external clock  
IN  
forswitching-noisesensitiveapplications.Ashutdownpin  
allows the LTC3810 to be turned off, reducing the supply  
current to 240μA.  
APPLICATIONS  
Integratedbiascontrolgeneratesgatedrivepowerfromthe  
input supply during start-up and when an output short-  
circuit occurs, with the addition of a small external SOT23  
MOSFET. When in regulation, power is derived from the  
output for higher efficiency.  
n
48V Telecom and Base Station Power Supplies  
Networking Equipment, Servers  
Automotive and Industrial Control Systems  
n
n
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners. Protected by U.S. Patents  
including 5481178, 5847554, 6304066, 6476589, 6580258, 6677210, 6774611.  
TYPICAL APPLICATION  
High Efficiency High Voltage Step-Down Converter  
Efficiency vs Load Current  
V
IN  
15V TO 100V  
100  
R
ON  
261k  
+
V = 50V  
IN  
C
22μF  
100k  
IN  
V
= 25V  
IN  
I
ON  
M3  
95  
90  
85  
NDRV  
ZXMN10A07F  
V
= 75V  
IN  
PGOOD  
BOOST  
LTC3810  
V
RNG  
M1  
L1  
10μH  
TG  
Si7456DP  
0.1μF  
C
SS  
V
MODE/SYNC  
SS/TRACK  
SHDN  
OUT  
SW  
1000pF  
12V/6A  
EXTV  
DRV  
INTV  
CC  
CC  
R
FB1  
14k  
+
CC  
+
D1  
MBR1100  
80  
SENSE  
C
OUT  
I
TH  
0
1
2
3
4
5
6
5pF  
M2  
Si7456DP  
270μF  
LOAD (A)  
200k  
BG  
V
FB  
3810 TA01b  
–
SENSE  
BGRTN  
47pF  
R
FB2  
1k  
SGND  
1μF  
3810 TA01  
3810fb  
1
1234567...36

中文翻译

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LTC3810IG 替代型号

型号 品牌 替代类型 描述 数据表
LTC3810EG#TRPBF Linear

完全替代

 LTC3810 - 100V Current Mode Synchronous Switching Regulator Controller; Package: SSOP; Pin

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