Datasheet > F75133

F75133

更新时间： 2022-12-18 01:03:49

品牌	Logo	应用领域
精拓 - FINTEK		/
页数	文件大小	规格书
24页	745K
描述
LOADING GAUGE IC

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F75133 数据手册

F75133

6. Pin Description

I/OD_12st

O₁₂

- TTL level bi-directional pin with schmitt trigger., Open-drain outpu with 12 mA sink capability.

. .. - Output pin with 12 mA source-sink capability.

- Open-drain output pin with 12 mA sink capability.

- TTL level input pin with schmitt trigger.

OD₁₂

IN_st

- Power.

Pin No

Pin Name

Type

PWR

Description

VDD

Main power supply voltage input with 3.3V.

SDA

SCL

VSS

VDD Serial data input/output. (5V Tolerance)

VDD Serial clock input. (5V Tolerance)

I/OD_12st

IN_st

Ground.

TURBO#/STRAP

VDD General TURBO signal output pin. (5V Tolerance)

Power on strapping pin. (5V Tolerance)

O₁₂

FAULT#

PME#

VDD General FAULT event pin. (5V Tolerance)

VDD General PME event pin. (5V Tolerance)

VDD PWM input sensor pin. (5V Tolerance)

OD₁₂

IN_st

PWMIN

7. Function Description

7.1 General Description

As the below circuit, the F75133S can directly sense PWM controller’s duty cycle to find out the current

loading of equipments. In the past, if engineer would like to measure the consumption of parts, could put a

resistance between power and parts, then detected ∆V and capitalized the value to understand the loading

condition. Although the method is convenient and needs just a cheap resistance, but some of the accurate

issues and power consumption problem will be the critical points. For example, the resistance will cause more

consumption and heat questions if the end-equipment needs mass current to implement. Depends on these

problems, more accuracy and more efficiency sensor chip is necessary. The F75133S will handle previous

trouble.

-3-

2007

V0.28P

1...3 4 567 8 9...24

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