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Description
The IMP38C4x and IMP38HC4x are fixed frequency, high-performance, current-mode PWM controllers that are pin compatible with bipolar 384x devices. They feature improvements resulting from IMP’s BiCMOS processing and circuit design. Notable among the improvements are 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 IMP38C4x and IMP38HC4x output driver stage has zero cross-conduction current. A proprietary output state-machine monitors each output MOSFET and guarantees, by design, zero cross-conduction current. This is an industry first for 384x PWM devices.Specifications and features
- 1MHz Operation - No Cross-Conduction Current - 50ns Current-Sense Delay - 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, IMP38HC4x - 0.5A, 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/HC4xApplication Scenarios
This electronic component model, IMP38C44ESA, can be used in various electronic devices that require fixed frequency, high-performance current-mode PWM controllers. It is suitable for applications where zero cross-conduction current and reduced start-up and operating current are important. With its pin compatibility with bipolar 384x devices and enhancements from IMP's BiCMOS processing and circuit design, it offers improved performance and reliability.Comparison
Advantages- 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 - 1% trimmed voltage referenceDisadvantages- None mentioned in the provided information. -
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Additional Information
- Datasheet: Download IMP38C44ESA
- Chipdatas Part: CD90-IMP38C44ESA
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/20 00:20 +0800
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