收藏本站
LTC4350

4350fb
pin FuncTions
GND (Pin 8): Chip Ground.
FB (Pin 9): Analog Error Amplifier Input (E/A1). This pin is 
used to monitor the output supply voltage with an external
resistive divider. The FB pin voltage is compared to 1.220V
reference. The difference between the FB pin voltage and
the reference is amplified and output on the COMP1 pin.
R
SET
  (Pin 10):  Analog  Output  Pin.  The  I
OUT
  amplifier
converts the voltage at the COMP2 pin (down a diode
voltage) to the R
SET
 pin. Therefore, the current through
the external resistor (R
SET
) placed between the R
SET
 pin
and ground is (COMP2  V
DIODE
)/R
SET
. This current is
used to adjust the output voltage.
I
OUT
 (Pin 11): Analog Output Pin. The current flowing into 
the I
OUT
 pin is equal to the current flowing out of the R
SET
 
pin that was set by the external resistor R
SET
. This current
is used to adjust the output supply voltage by modifying
the voltage sensed by the power supplys internal voltage
feedback circuitry.
R

 (Pin 12): Analog Input Pin. With a sense resistor placed 
in the supply path between the R
+
 and R

pins, the power
supply current is measured as a voltage drop between R
+
 
and R

. This voltage is measured by the I
SENSE
 block and
multiplied at the GAIN pin.
R
+
 (Pin 13): Analog Input Pin. With a sense resistor placed 
in the supply path between the R
+
 and R

 pins, the power
supply current is measured as a voltage drop between R
+
 
and R

. This voltage is measured by the I
SENSE
 block and
multiplied at the GAIN pin.
GATE (Pin14): The high side gate drive for the external  
N-Channel power FET . An internal charge pump provides
the gate drive necessary to drive the FETs. The slope of
the voltage rise or fall at the GATE is set by an external
capacitor connected between GATE and GND, and the
10礎 charge pump output current. When the undervoltage
lockout circuit monitoring V
CC
 trips, the OV pin is pulled
high or the UV pin is pulled low, the GATE pin is immedi-
ately pulled to GND.
STATUS (Pin 15): Open-Drain Digital Output. The STATUS 
pin has an open-drain output to GND. This pin is pulled
low to indicate a fault has occurred in the system. There
are three types of faults. The first is a undervoltage lockout
on V
CC
 or the UV pin is low while the output voltage is
active. The second is when the COMP2 pin is above 1.5V
or below 0.5V and the voltage on the GAIN pin is greater
than 100mV . The final failure is when the OV pin is high.
The three faults will activate the pull-down on the STATUS
pin after a timing cycle.
V
CC
 (Pin 16): The Positive Supply Input, Ranging from 
3.3V to 12V for Normal Operation. I
CC
 is typically 1.6mA.
An undervoltage lockout circuit disables the chip until
the voltage at V
CC
 is greater than 2.47V . A 0.1礔 bypass
capacitor is required on the V
CC
 pin. If the V
CC
 pin is tied
to the same power supply output that is being adjusted,
then a 51?decoupling resistor is needed to hold up the
supply during a short to ground on the supply output.
V
CC
must be greater than or equal to the supply that is
connected to the R
+
 and R

 pins.
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MAX1299CEAE+ IC TEMP SENS W/ADC 16-SSOP
MAX14544ETA+T IC ACCY SWITCH OVP PROTECT 8TDFN
MAX1617AMEE+T IC REMOTE/LOCAL TEMP SNSR 16QSOP
MAX1617MEE+T IC REMOTE/LOCAL TEMP SNSR 16QSOP
MAX1619MEE+ IC TEMP SENSOR W/ALARM 16-QSOP
MAX1765EUE+ IC REG DL BST/LINEAR 16TSSOP
MAX1989MUE+ IC TEMP SENSOR REMOTE 16TSSOP
MAX31723MUA+ IC THERMOMETER/STAT SPI-3W 8UMAX
相关代理商/技术参数
LTC4350IGN#TR 功能描述:IC CNTRLR HOTSWAP LOADSHAR16SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF)
LTC4350IGN#TRPBF 功能描述:IC CNTRLR HOTSWAP LOADSHAR16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF)
LTC4352CDD#PBF 功能描述:IC IDEAL DIODE CNTRL 12-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:- 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR)
LTC4352CDD#TRPBF 功能描述:IC IDEAL DIODE CNTRL 12-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:- 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR)
LTC4352CMS#PBF 功能描述:IC IDEAL DIODE CNTRL 12-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:- 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR)
LTC4352CMS#TRPBF 功能描述:IC IDEAL DIODE CNTRL 12-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:- 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR)
LTC4352HDD#PBF 功能描述:IC IDEAL DIODE CTLR W/MON 12-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:- 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR)
LTC4352HDD#TRPBF 功能描述:IC IDEAL DIODE CTLR W/MON 12-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:- 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR)