This post explains for the Inverter Control IC.

The Part Number is BD9893F.

The function of this semiconductor is DC-AC Inverter Control IC.

Manufacturer: Rohm

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Description

This is DC-AC Inverter Control IC. BD9893F is a specialized electronic component designed to control and manage the operation of a DC to AC power inverter. DC-AC inverters are devices that convert direct current (DC) power into alternating current (AC) power. They are commonly used in various applications, such as uninterruptible power supplies (UPS), solar inverters, motor drives, and portable electronic devices.

Features

1. 1ch control with Push-Pull

2. Lamp current and voltage sense feed back control

3. Sequencing easily achieved with Soft Start Control

4. Short circuit protection with Timer Latch

5. Under Voltage Lock Out

6. Short circuit protection with over voltage

7. Mode-selectable the operating or stand-by mode by stand-by pin

8. BURST mode controlled by PWM and DC input
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BD9893F PDF Datasheet

This post explains for the TTL 7404.

The Part Number is 7404.

The function of this semiconductor is Hex Inverting Gates.

Manufacturer: Fairchild Semiconductor, National Semiconductor

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Description

The 7404 is a popular integrated circuit (IC) part of the 74xx series of logic gates. Specifically, the 7404 is a hex inverter IC, which means it contains six individual inverter gates. Each gate takes one digital input signal and produces the logical inverse (complement) of that input signal at the output. In other words, if the input is a logic high (1), the output will be a logic low (0), and vice versa.

Features

1. Six Hex Inverters

2. Outputs Directly Interface to CMOS, NMOS and TTL

3. Large Operating Voltage Range

4. Wide Operating Conditions

5. Not Recommended for New Designs Use 74LS04

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Pin Number Description

1 A Input Gate 1
2 Y Output Gate 1
3 A Input Gate 2
4 Y Output Gate 2
5 A Input Gate 3
6 Y Output Gate 3
7 Ground
8 Y Output Gate 4
9 A Input Gate 4
10 Y Output Gate 5
11 A Input Gate 5
12 Y Output Gate 6
13 A Input Gate 6
14 Vcc – Positive Supply

 

 

7404 PDF Datasheet