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Description
The IMP38C43ESD is a fixed frequency, high-performance current-mode PWM controller. It is a part of the 384x series of IC chips and is designed with IMP's BiCMOS technology, offering several improvements over previous models. These improvements include zero cross-conduction/shoot-through current, reduced start-up and operating current, lower current-sense delay, higher frequency operation, full supply voltage swing at the output, and a 1% trimmed voltage reference. The output driver stage of the IMP38C43ESD has zero cross-conduction current, setting it apart from other PWM devices in its category.
Specifications and features
- 384x Series Pinout with BiCMOS Technology
- Zero Cross-Conduction Current by Design
- 1MHz Operation
- 65ns Maximum Current-Sense Delay
- 120µA Maximum Start-Up Current
- 1.5mA Maximum Operating Current
- High Output Current Drive
- 1.0A for IMP38HC4x
- 0.5A for IMP38C4x
- 20V Maximum Supply Voltage
- 2.5V, 1% Trimmed Error Amplifier Reference
- Trimmed Oscillator Discharge Current
- Pin-for-Pin Enhanced Replacements for Micrel MIC38C/HC4x and GMT38C4x/HC4x
Application Scenarios
The IMP38C43ESD is suitable for various applications including power supply control, motor control systems, lighting systems, and other circuits where a high-performance PWM controller is required. Its zero cross-conduction current design and high output current drive make it an ideal choice for applications where efficiency and precision are crucial.
Comparison
Advantages- Zero cross-conduction/shoot-through current design
- Reduced start-up and operating current
- Lower current-sense delay
- Higher frequency operation
- Full supply voltage swing at the output
- 1% trimmed voltage reference
- Proprietary output state-machine for zero cross-conduction current
DisadvantagesCurrently, no specific disadvantages have been identified for the IMP38C43ESD.
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Datasheet
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Popular parts of the same kind
- Datasheet: Download IMP38C43ESD
- Chipdatas Part: CD89-IMP38C43ESD
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
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- Last Updated: 2024/09/19 09:31 +0800
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