1 3

LM3914 Dot/Bar Display Driver IC DIP-18 Package

LM3914 Dot/Bar Display Driver IC DIP-18 Package

First Come First Serve Offer (T&C Apply )

28.42
0.00 28.42
Sale Sold out
Shipping calculated at checkout.

The LM3914 is a monolithic integrated circuit that detects analog voltage levels and operates ten LEDs to create a linear analog display. With a single pin, the display transforms from a moving dot to a bar graph. The LEDs' current drive is regulated and customizable, removing the need for resistors. This is a feature that allows the entire system to run on less than 3V. The circuit has its own adjustable reference and a 10-step voltage divider that is quite accurate. The low-bias-current input buffer takes signals as low as V and requires no protection against 35V inputs above or below ground. The precision divider is accessed by the buffer, which drives ten separate comparators. Thus, even across a wide temperature range, indication non-linearity can be kept to below 12%.

Pinout

Pin Number Pin Name Description
1 and 10 to 18 LED1, LED2, LED3.....LED10 The 10 LEDs which has to be controlled is connected to these pins
2 V- / Ground Ground pin of the IC
3 V+ / Vcc Supply Voltage (3-18)V
4 RLO Low-level voltage for potential divider
5 Signal Analog signal Input pin based on which the LED is controlled.
6 RHI High-Level voltage for potential divider
7 REF OUT Output Reference Voltage for LED current limiting
8 REF ADJ Adjust pin for voltage reference
9 Mode Select between Dot/Bar Mode

Features

  • Drives LEDs, LCDs or Vacuum Fluorescents Bar or Dot Display Mode Externally Selectable by User
  • Expandable to Displays of 100 Steps Internal Voltage Reference from 1.2V to 12V
  • Operates with Single Supply of Less than 3V
  • Inputs Operate Down to Ground
  • Output Current Programmable from 2 mA to 30 mA
  • No Multiplex Switching or Interaction Between Outputs
  • Input Withstands ±35V without Damage or False Outputs
  • LED Driver Outputs are Current Regulated, Open-collectors
  • Outputs can Interface with TTL or CMOS Logic 
  • The Internal 10-step Divider is Floating and can be Referenced to a Wide Range of Voltages
Specifications
Part Number LM3914 
Supply Voltage 25V
Voltage on Output Drivers 25V
Divider Voltage −100mV to V+
Reference Load Current 10mA
Storage Temperature Range −55°C to +150°C
Output Voltage 1.2-1.34V
LED Current 7-13mA
Dimension 23x8.2x3.3mm
Country of Origin China

T&C Apply.

Terms and Conditions

1. Product Images and Representations

  • Images displayed on the website are for illustrative purposes only. The actual product may vary in color and design.

2. Offers and Returns

  • Products purchased during promotional offers may not be eligible for return. Please refer to the specific offer details for clarification.
  • We offer a standard return policy for most products, with some exceptions for products purchased during offers.

3. Availability and Out-of-Stock Products

  • All products listed on the website are available on a first-come, first-served basis.

Following are the stock percentages available in the sale:

Xiaomi: 15%

Vivo: 5%

Samsung: 5%

Realme: 8%

OPPO: 10%

OnePlus: 4%

Apple: 4%

Poco: 2%

Infinix: 10%

Feature Phones: 32%

Tecno: 5% 

We reserve the right to limit quantities.

  • In case of stock depletion, we may offer a replacement product of similar value.
  • If you are not satisfied with the replacement, we will credit your account with the purchase amount. This credit can be used towards future purchases, but no cash refunds will be issued.

4. Product Exchanges

  • We offer exchanges for products that are broken or damaged upon arrival. Please refer to our return policy for details on initiating an exchange.

5. Refurbished Electronics

  • Electronic products listed under the "website " may be old refurbished, meaning they were previously owned. These products will be clearly marked as refurbished.

  • the branded box, charger, accessories will not be included with the mobile phone.

6. Customer Satisfaction and Credits

  • If you are unhappy with any product, we may offer you a coupon code for a future purchase instead of a cash refund.

7. Shipping and Delivery

  • Our standard shipping method is surface mode, which may result in longer delivery times. Typical delivery times range between 8-15 business days.

8. Acceptance of Terms

All products sold on a first-come, first-served basis are subject to our No Refund Policy. As part of this policy, the company will randomly select five customers out of every 100 orders to receive smartphone products. The remaining orders may be canceled, or the customer may opt to receive a branded T-shirt of equivalent value. If the customer objects to receiving a T-shirt or want for refund,

A full refund will be issued to their company-created digital wallet within 30 days. Please note that this offer is discretionary and involves a risk of non-receipt of the desired product. By placing an order, you acknowledge and agree to these terms."

View full details