LM1949N/NOPBIn StockTexas Instruments
The LM1949N/NOPB is a Texas Instruments injector drive controller for automotive fuel injection, operating from 7-40V supply with peak-and-hold current control. Starting at $3.43 for 1000+ units, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- PDIP
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LM1949N/NOPB Datasheet PDF
- Category
- power-management
- Price
- From $3.4300(MOQ 25)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 7V to 40V supply voltage range for automotive applications
- Peak-and-hold injector current control for precise fuel delivery
- Built-in current sensing with external shunt resistor
- PDIP-8 package for easy prototyping and through-hole mounting
- Operating temperature range -40°C to 125°C for harsh automotive environments
Applications
The LM1949N/NOPB is primarily used in automotive electronic fuel injection (EFI) systems to control solenoid-type fuel injectors. It provides peak-and-hold current drive that enables fast injector opening with reduced holding power, improving fuel efficiency. Common applications include aftermarket engine management systems, diesel injection controllers, and industrial solenoid valve drivers.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Built-in Protections | OVER CURRENT |
| Driver Number of Bits | 1 |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | BUFFER OR INVERTER BASED PERIPHERAL DRIVER |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Characteristics | OPEN-COLLECTOR |
| Output Current Flow Direction | SINK |
| Output Peak Current Limit-Nom | 0.022A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max | 54mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 5.5V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| ## LM1949N/NOPB Alternates Showing results | Image |
| Package | PDIP |
Compliance & Regulatory
| RoHS Status | Compliant |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM1949N/NOPB:
suggested
Frequently Asked Questions
What is the supply voltage range of the LM1949N/NOPB injector driver?
The LM1949N/NOPB operates from a wide supply voltage range of 7V to 40V, making it suitable for 12V and 24V automotive electrical systems. This wide range provides robust operation during load dump and cold crank conditions typical in automotive environments.
What applications is the LM1949N/NOPB designed for?
The LM1949N/NOPB is designed primarily for automotive electronic fuel injection systems where it controls solenoid-type fuel injectors using peak-and-hold current drive. It is also suitable for industrial solenoid valve control, aftermarket engine management systems, and diesel injection applications requiring precise current control.
What package options are available for the LM1949N injector controller?
The LM1949N/NOPB comes in an 8-pin PDIP dual in-line package which is ideal for through-hole PCB mounting and prototyping. The PDIP-8 package provides easy handling and soldering for both production and development applications.
What is the operating temperature range of the LM1949N/NOPB?
The LM1949N/NOPB is rated for an operating temperature range of -40°C to +125°C, meeting automotive temperature grade requirements. This extended range ensures reliable operation in under-hood automotive environments where temperatures can be extreme.
Are there alternative parts compatible with the LM1949N injector driver?
Compatible alternatives include the LM1949M/NOPB which is the SOIC-8 surface mount version of the same device from Texas Instruments, offering the same functionality in a smaller surface mount footprint for space-constrained automotive PCB designs.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $4.8100 | $120.25 |
| 40+ | $4.6800 | $187.20 |
| 120+ | $4.4700 | $536.40 |
| 280+ | $4.4500 | $1246.00 |
| 500+ | $3.6400 | $1820.00 |
| 1000+ | $3.4300 | $3430.00 |
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