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Name: DS2003TM
Brand: National Semiconductor
SKU: DS2003TM
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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National Semiconductor DS2003TM

Part No.:: DS2003TM

Manufacturer:: National Semiconductor

Package:: Surface Mount

Datasheet:: DS2003TM.pdf

Description:: SMALL SIGNAL BIPOLAR TRANSISTOR

In Stock:: 3544

Quantity:: Add To Cart

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DS2003TM Specifications

Packaging:
Bulk
Series:
-
ProductStatus:
Active
TransistorType:
7 NPN Darlington
Current-Collector(Ic)(Max):
500mA
Voltage-CollectorEmitterBreakdown(Max):
55V
VceSaturation(Max)@IbIc:
1.6V @ 500µA, 350mA
Current-CollectorCutoff(Max):
100µA
DCCurrentGain(hFE)(Min)@IcVce:
-
Power-Max:
926mW
Frequency-Transition:
-
OperatingTemperature:
-40°C ~ 105°C (TA)
MountingType:
Surface Mount

DS2003TM this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DS2003TM price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for DS2003TM to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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DS2003TM information

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DS2003TM Typical application Circuitry

DS2003TM

The DS2003TM is a high-current/voltage Darlington transistor array designed for applications requiring high-voltage/current driving capability with digital logic signals. It is commonly utilized in interfacing between low-level logic circuits and high-power loads, making it suitable for a wide range of applications including motor drivers, LED displays, and relay drivers.

Application Scenarios

One practical application of the DS2003TM is in relay control circuits, where it is used to drive multiple relays from logic signals provided by a microcontroller or other digital logic circuits.

Parameter Features

- High Voltage/Current Drive Capability: Suitable for driving a broad range of loads, the DS2003TM can withstand high output voltages and currents.

- Integrated Clamp Diodes: These clamp diodes prevent against voltage spikes when used in inductive load driving.

- several Darlington Pairs: This feature enables it to drive several loads at once since it has many Darlington pairs.

Specific Circuit Connection

In designing a relay control circuit using the DS2003TM, the following connections and considerations are critical:

- Power Supply Connection: Connect the DS2003TM's Vcc pin to a suitable power supply that matches the requirements of the relays being driven. This ensures that the relays receive adequate voltage for activation.

- Input Connections: The input pins of the DS2003TM (typically labeled as inputs 1 through n for the number of channels on the chip) should be connected to the output pins of the controlling microcontroller or digital logic device. Ensure that the logic levels are compatible.

- Output to Relay Coils: Connect the output pins of the DS2003TM directly to the relay coils. The integral clamp diodes of the DS2003TM provide the necessary back-EMF protection when driving inductive loads such as relay coils.

- Common Ground: It's crucial to connect the ground (GND) of the DS2003TM, the microcontroller, and the power supply to a common ground point to ensure proper operation and to minimize the risk of creating ground loops.

Design Considerations

- Heat Dissipation: When the DS2003TM is driving high-current loads, it can generate significant heat. Adequate heat sinking or thermal management measures should be implemented to maintain the DS2003TM within safe operating temperatures.

- Logic Voltage Levels: Ensure that the logic voltage levels from the controlling device are compatible with the DS2003TM's input requirements to guarantee correct operation.

- Load Requirements: The voltage and current requirements of the load (in this case, the relays) must be within the DS2003TM's capability to ensure reliable driving without damaging the chip.

- Protection: Although the DS2003TM includes clamp diodes, additional protection measures such as external diodes, resistors, or capacitors might be necessary depending on the application specifics, especially in environments with high electrical noise or potential for large voltage spikes.

By meticulously planning the circuit layout and considering these factors, the DS2003TM can be effectively used in relay control circuits, providing a reliable interface between low-power logic signals and higher-power relay coils.

DS2003TM FAQ

1. How to order DS2003TM on icwhale.com?

Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

2. How does icwhale.com guarantee that DS2003TM is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the DS2003TM. All suppliers must pass our qualification reviews before they can publish their products including DS2003TM on icwhale.com; we pay more attention to the channels and quality of DS2003TM products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the DS2003TM price and inventory displayed accurate?

The price and inventory of DS2003TM fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of DS2003TM?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the DS2003TM we delivered, we will accept the replacement or return of the DS2003TM only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of DS2003TM.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations