UC2903DW

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UC2903DW

IC SUPERVISOR 4 CHANNEL 18SOIC

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배송 준비 24 시간

365 일 보장

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사양

Part Status Obsolete
Base Product Number UC2903
DigiKey Programmable Not Verified
Type Multi-Voltage Supervisor
Voltage - Threshold Adjustable/Selectable
Output Open Drain or Open Collector
Reset Active Low
Reset Timeout Adjustable/Selectable
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package 18-SOIC (0.295", 7.50mm Width)
Supplier Device Package 18-SOIC
Packaging Tube
Number of Voltages Monitored 4

개요

Description

The UC2903DW is a high-performance voltage regulator and battery management IC designed for use in power supply applications. It is part of the UC2900 series from Texas Instruments, which specializes in managing battery charging and protection circuits. The UC2903DW features a bi-directional current sensing capability, which is essential for monitoring battery charge and discharge cycles.
Key features include an integrated linear regulator, adjustable output voltage, temperature compensation, and a built-in reference voltage. The device also supports various battery chemistries, making it versatile for applications such as uninterruptible power supplies (UPS), portable devices, and electric vehicles.
The UC2903DW operates with a wide input voltage range and offers protection features like over-voltage, under-voltage, and thermal shutdown to ensure safe operation. Its compact package and efficient design make it suitable for space-constrained applications, providing reliable performance for modern electronic systems.

Features

The UC2903DW is a voltage monitor and supervisor IC designed for power management applications. Key features include:
1. Voltage Monitoring: It can monitor supply voltages and provide an output signal when a threshold is crossed.
2. Precision: Offers accurate voltage detection with a typical threshold accuracy of ±2%.
3. Adjustable Thresholds: Users can set the voltage thresholds using external resistors, making it flexible for different applications.
4. Reset Output: It has a manual reset input and an active high reset output that indicates when the monitored voltage is out of range.
5. Low Power Consumption: Designed for low quiescent current, ideal for battery-powered devices.
6. Wide Supply Voltage Range: Operates within a range suitable for various applications, typically from 2.5V to 18V.
7. Temperature Stability: The device maintains performance across a wide temperature range, ensuring reliability.
These features make the UC2903DW suitable for microcontroller reset applications, battery management systems, and general voltage supervision needs.

Package

The UC2903DW is typically packaged in a 16-pin dual in-line package (DIP) or a 16-lead surface mount package (SOIC). It is designed for voltage and current regulation applications in power management circuits.

Pinout

The UC2903DW is a dual voltage monitor and supervisor IC with a total of 8 pins. Its pin configuration and functions are as follows:
1. VCC (Pin 1): Supply voltage input.
2. GND (Pin 2): Ground reference.
3. SENSE (Pin 3): Voltage sense input for monitoring.
4. VTRIP (Pin 4): Voltage trip point reference input.
5. RESET (Pin 5): Active-low reset output.
6. DETECT (Pin 6): Indicator output for voltage monitoring.
7. VREF (Pin 7): Reference voltage output.
8. COMP (Pin 8): Compensation pin for stability and performance.
The UC2903DW is commonly used in applications requiring voltage monitoring and reset functionality, ensuring that systems operate within specified voltage ranges.

Manufacturer

The UC2903DW is manufactured by Texas Instruments (TI), a leading global technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, with a strong focus on analog and digital signal processing. Founded in 1930 and headquartered in Dallas, Texas, TI serves a wide range of industries, including automotive, industrial, communications, and consumer electronics. The company is known for its innovative products, including microcontrollers, processors, and power management solutions, and has a significant presence in the field of electronic components, contributing to advancements in technology worldwide.

Application

The UC2903DW is a battery management integrated circuit primarily used in power supply applications. It is suitable for battery charging, monitoring, and management in systems like lithium-ion batteries, lead-acid batteries, and other rechargeable types. Key application areas include uninterruptible power supplies (UPS), electric vehicles, solar energy systems, and energy storage solutions. Its features enhance efficiency, reliability, and safety in battery operation and lifecycle management.

Equivalent

The UC2903DW is a dual voltage monitoring and supervisory chip. Equivalent products include the LM2903 (dual comparator), LM393 (dual comparator), and MAX811 (voltage monitor). Other alternatives may also include similar supervisory circuits from manufacturers like Texas Instruments, ON Semiconductor, and Microchip. Always check specific datasheets for compatibility based on your application’s requirements.

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DHL은: 배송 비용은 $25-$45 (0.5kg)에서 2-5 영업일의 추정적 배달 시간이 있습니다.

FedEx는: 배송 비용은 $25-$40 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.

UPS는: 배송 비용은 $25-$45 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.

TNT는: 배송 비용은 $25-$65 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.

EMS는: 배송 비용은 $30-$50 (0.5kg)에서 7-15 영업일의 추정적 배달 시간을 제공합니다.

등록된 항공우편: 배송 비용은 $2-$4 (0.1kg), 예상 배달 시간 5-20 영업일.

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