- 您现在的位置：买卖IC网 > PDF目录30771 > LTC3862HFE#PBF (LINEAR TECHNOLOGY CORP) DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 PDF资料下载
参数资料
| 型号： | LTC3862HFE#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | 4.40 MM, LEAD FREE, PLASTIC, TSSOP-24 |
| 文件页数： | 29/40页 |
| 文件大小： | 613K |
| 代理商： | LTC3862HFE#PBF |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页当前第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页
LTC3862
35
3862fb
APPLICATIONS INFORMATION
10. The output resistor divider should be located as
close as possible to the IC, with the bottom resistor
connected between FB and SGND. The PCB trace
connecting the top resistor to the upper terminal of
the output capacitor should avoid any high frequency
switching nodes.
11. Since the inductor acts like a current source in a
peak current mode control topology, its placement
on the board is less critical than the high di/dt com-
ponents.
12. The SENSE+ and SENSE– PCB traces should be routed
parallel to one another with minimum spacing in be-
tween all the way to the sense resistor. These traces
should avoid any high frequency switching nodes in
the layout. These PCB traces should also be Kelvin-
connected to the interior of the sense resistor pads,
in order to avoid sensing errors due to parasitic PCB
resistance IR drops.
13. If an external RC lter is used between the sense
resistor and the SENSE+ and SENSE– pins, these lter
components should be placed as close as possible to
the SENSE+ and SENSE– pins of the IC. Ensure that
the SENSE– line is connected to the ground only at the
point where the current sense resistor is grounded.
14. Keep the MOSFET drain nodes (SW1, SW2) away
from sensitive small-signal nodes, especially from
the opposite channel’s current-sensing signals. The
SW nodes can have slew rates in excess of 1V/ns
relative to ground and should therefore be kept on
the “output side” of the LTC3862.
15. Check the stress on the power MOSFETs by indepen-
dently measuring the drain-to-source voltages directly
across the devices terminals. Beware of inductive
ringing that could exceed the maximum voltage rating
of the MOSFET. If this ringing cannot be avoided and
exceeds the maximum rating of the device, choose
a higher voltage rated MOSFET or consider using a
snubber.
16. When synchronizing the LTC3862 to an external clock,
use a low impedance source such as a logic gate to
drive the SYNC pin and keep the lead as short as
possible.
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3862EGN#TRPBF | DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 |
| LTC3862IUH#PBF | DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC24 |
| LTC3862EGN#PBF | DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 |
| LTC3862EUH#TRPBF | DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC24 |
| LTC3862HGN#TRPBF | DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3862HGN#PBF | 功能描述:IC REG CTRLR BST PWM CM 24-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
| LTC3862HGN#TRPBF | 功能描述:IC REG CTRLR BST PWM CM 24-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
| LTC3862HGN-1#PBF | 功能描述:IC REG CTRLR BST PWM CM 24-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
| LTC3862HGN-1#TRPBF | 功能描述:IC REG CTRLR BST PWM CM 24-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
| LTC3862HGN-2#PBF | 功能描述:IC REG CTRLR BST PWM CM 24-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
发布紧急采购，3分钟左右您将得到回复。