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Texas Instruments 16-Pin MDIP 5-Channel PWM Controller, 100 kHz, 14V, Voltage Mode, Buck Topology, LM78S40CN/NOPB
Specifications
| Country of Origin | India |
|---|---|
| Brand | Texas Instruments |
| Height | 3.3mm |
| Length | 19.05mm |
| Model | LM78S40CN/NOPB |
| Width | 6.35mm |
| Mount Type | Through Hole |
| Maximum Duty Cycle | 88% |
| Series | LM |
| Output Current | 1.2A |
| Topology | Buck |
| Maximum Operating Temperature | 70°C |
| Package Type | MDIP |
| Minimum Operating Temperature | 0°C |
| Number of outputs | 5 |
| Output Voltage | 40V |
| Maximum Switching Frequency | 100kHz |
| Pin Count | 16 |
| Maximum Supply Voltage | 14V |
| Minimum Supply Voltage | 2.7V |
| Start-up Supply Current | 1.8mA |
| PWM Controller Type | Voltage Mode |
Key Features
- Supports step-down (buck) voltage regulation for efficient power management applications.
- Features a maximum switching frequency of 100 kHz and supports up to 14V supply voltage.
- Delivers up to 1.2A output current with 40V maximum output voltage and up to 88% duty cycle.
- Provides five independent channels for controlling multiple outputs from a single IC.
- Designed for through-hole mounting and voltage mode PWM control for versatile integration.
- Operating temperature range from 0°C to 70°C ensures stability in industrial environments.
- Compact MDIP package with 16 pins, dimensions 19.05mm x 6.35mm x 3.3mm.
Product Description
Texas Instruments LM78S40CN/NOPB is a highly integrated 5-channel PWM controller IC, engineered to meet demanding power management needs in industrial, laboratory, and commercial applications. This device utilizes a voltage-mode PWM approach and provides robust step-down (buck) regulation capability, supporting input voltages up to 14V with reliable switching frequencies up to 100 kHz. Its 16-pin MDIP form factor enables straightforward through-hole installation, making it ideal for PCB assembly in systems requiring efficient multi-channel DC/DC conversion.
Key technical features include a maximum output voltage of 40V and output currents up to 1.2A across each channel, making the LM78S40CN/NOPB suitable for both distributed and clustered power regulation. The controller supports up to five separate outputs, offering flexibility for supplying multiple components or circuits from a single solution. The maximum duty cycle reaches 88%, optimizing output quality and response under varying load conditions.
The IC’s minimum supply voltage operates from 2.7V, ensuring compatibility with low-voltage digital logic platforms, while its maximum supply voltage of 14V accommodates standard and higher-voltage systems. Start-up and steady-state supply currents are both rated at 1.8mA, minimizing self-consumption and supporting energy-efficient operation.
Designed for a wide industrial temperature range (0°C to 70°C), LM78S40CN/NOPB maintains reliable performance in environments subject to thermal fluctuations. With a package size of 19.05mm (length) x 6.35mm (width) x 3.3mm (height), this MDIP IC is easily integrated into compact control panels and power systems.
Step-down buck topology enables precise voltage regulation in DC/DC conversion and power distribution systems. Voltage mode PWM control grants enhanced stability and response for critical electronic, industrial, and laboratory applications.
Five-channel design permits simultaneous control of multiple loads, supporting scalable equipment and instrumentation. Through-hole MDIP packaging provides robust mechanical mounting and facilitates conventional assembly processes.
Ideal for power management, embedded systems, laboratory instrumentation, and manufacturing controls requiring reliable multi-output regulation.
Suitable for use in industrial machinery, laboratory apparatus, commercial equipment, and embedded systems, the LM78S40CN/NOPB offers a versatile and reliable solution for DC power management. Explore more Texas Instruments PWM controllers and power management ICs in the Power Management ICs category on EnvMart.
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Frequently Asked Questions
The LM78S40CN/NOPB can deliver up to 1.2A output current across each of its five channels.
This PWM controller supports a maximum supply voltage of 14V.
It features a maximum switching frequency of 100 kHz.
The LM78S40CN/NOPB provides five independent outputs for controlling multiple loads.
The operating temperature range is from 0°C to 70°C, ensuring stability in industrial environments.
It is designed for through-hole mounting, facilitating easy PCB assembly.
This model comes in a compact MDIP package type with 16 pins.
The maximum output voltage supported is 40V.
The minimum supply voltage for the LM78S40CN/NOPB is 2.7V.
It has a maximum duty cycle of 88%, optimizing output quality under varying load conditions.
The start-up supply current is rated at 1.8mA, which helps minimize self-consumption.
This PWM controller utilizes a buck topology for efficient step-down voltage regulation.
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