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参数资料
| 型号： | LTC4355IMS#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | LEAD FREE, PLASTIC, MSOP-16 |
| 文件页数： | 16/20页 |
| 文件大小： | 249K |
| 代理商： | LTC4355IMS#PBF |
LTC4355
5
4355fe
PIN FUNCTIONS
Exposed Pad: Exposed pad may be left open or connected
to GND.
FUSEFLTx: Fuse Fault Outputs. Open-drain output that
pulls to GND when VINx < 3.5V, indicating that the fuse
has blown open. Otherwise, this output is high impedance.
Connect to GND if unused.
GATEx: Gate Drive Outputs. The GATE pins pull high,
enhancing the N-channel MOSFET when the load cur-
rent creates more than 25mV of voltage drop across
the MOSFET. When the load current is small, the
gates are actively driven to maintain 25mV across the
MOSFET. If the reverse current develops more than
–25mV of voltage drop across a MOSFET, a fast pull-down
circuit quickly connects the GATE pin to the IN pin, turning
off the MOSFET. Limit the capacitance between the GATE
and IN pins to less than 0.1μF.
GND: Device Ground.
INx: Input Voltages and GATE Fast Pull-Down Returns. The
IN pins are the anodes of the ideal diodes and connect to the
sources of the N-channel MOSFETs. The voltages sensed
at these pins are used to control the source-drain voltages
across the MOSFETs and are used by the fault detection
circuits that drive the PWRFLT, FUSEFLT, and VDSFLT pins.
The GATE fast pull-down current is returned through the IN
pins. Connect these pins as close to the MOSFET sources
as possible. Connect to OUT if unused.
MONx: Input Supply Monitors. These pins are used to
sense the input supply voltages. Connect these pins to
external resistive dividers between the input supplies and
GND. If VMONx falls below 1.23V, the PWRFLTx pin pulls
to GND. Connect to GND if unused.
NC: No Connection. Not internally connected. These
pins provide extra distance between high and low volt-
age pins.
OUT: Drain Voltage Sense and Positive Supply Input. OUT
is the diode-OR output of IN1 and IN2. It connects to the
common drain connection of the N-channel MOSFETs. The
voltage sensed at this pin is used to control the source-
drain voltages across the MOSFETs and is used by the
fault detection circuits that drive the PWRFLT and VDSFLT
pins. The LTC4355 is powered from the OUT pin.
PWRFLTx: Power Fault Outputs. Open-drain output
that pulls to GND when VMONx falls below 1.23V or
the forward voltage across the MOSFET exceeds
ΔVSD(FLT). When VMONx is above 1.23V and the
forward voltage across the MOSFET is less than
ΔVSD(FLT), PWRFLTx is high impedance. Connect to GND
if unused.
SET:
ΔVSD(FLT) Threshold Conguration Input. Tying SET
to GND, to a 100k resistor connected to GND, or leaving
SET open congures the
ΔVSD(FLT) forward voltage fault
threshold to 250mV, 500mV, or 1.5V, respectively. When the
voltage across a MOSFET exceeds
ΔVSD(FLT), the VSDFLT
pin and at least one of the PWRFLT pins pull to GND.
VDSFLT: MOSFET Fault Output. Open-drain output that
pulls to GND when the forward voltage across either
MOSFET exceeds
ΔVSD(FLT). PWRFLT1 or PWRFLT2 also
pulls low to indicate which MOSFET’s forward voltage drop
exceeds
ΔVSD(FLT). Otherwise, this pin is high impedance.
Connect to GND if unused.
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| LTC4355IS#PBF | 功能描述:IC IDEAL DIODE-OR 16-SOIC 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) |
| LTC4355IS#PBF | 制造商:Linear Technology 功能描述:Power Management IC |
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| LTC4355ISPBF | 制造商:Linear Technology 功能描述:Ideal Diode-OR Controller 9-80V SOIC16 |
| LTC4357CDCB#PBF | 制造商:Linear Technology 功能描述:CONTROLLER DIODE SMD DFN-6 4357 制造商:Linear Technology 功能描述:IDEAL DIODE CONTROLLER, 80V, DFN-6; IC Function:Ideal Diode Controller; Supply Voltage Min:9V; Supply Voltage Max:80V; Operating Temperature Min:0C; Operating Temperature Max:70C; Digital IC Case Style:DFN; No. of Pins:6 ;RoHS Compliant: Yes |
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