IMP38C4X IMP Inc, IMP38C4X Datasheet
IMP38C4X
Related parts for IMP38C4X
IMP38C4X Summary of contents
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... The IMP38C4x and IMP38HC4x are fixed frequency, high performance, current-mode PWM controllers that are pin compatible with bipolar 384x devices but 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 ...
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... Current-sense propagation delay time is 35ns typical, 65ns maxi- mum, representing percent reduction over other 38xx implementations. Output stage drive is 0.5A for IMP38C4x devices. The high-drive IMP38HC4x family is rated at 1.0A peak current drive. Like conventional 384x controllers, the IMP38C4x and IMP38HC4x controllers use the current-mode architecture for superior load regulation, pulse-by-pulse current limiting and out- put MOSFET protection ...
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Absolute Maximum Ratings V ...
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... ON Resistance, High R ON Resistance, Low IMP38HC4x ON Resistance, High R ON Resistance, Low Peak Drive Current IMP38C4x Rise Time IMP38C4x Fall Time IMP38HC4x Rise Time IMP38HC4x Fall Time Shoot-through Current Undervoltage Lockout Start Threshold Minimum Operating Voltage Pulse Width Modulator Maximum Duty Cycle ...
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... This minimizes heat dissipation, increases efficiency and enhances reliability. Oscillator Operation Two external components, RT and CT, set the switching frequency. With V = 14V 10k and CT = 3.3nF, nominal switching CC frequency is 50kHz. IMP38C4x IMP38HC4x 1. frequency Ω ...
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... S Q – UVL R COMP Protection + Connection Notes IMP38C4X, IMP38HC4X (8-Pin Devices) 50% Maximum Duty Cycle: IMP38C44, IMP38HC44, IMP38C45, IMP38HC45 96% Maximum Duty Cycle: IMP38C42, IMP38HC42, IMP38C43, IMP38HC43 ( ) Pins Are 14-Pin Devices Only Figure 3. UVL Protection Circuit ...
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Package Dimensions E1 E ...
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© 2000 IMP, Inc ...
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IMP, Inc. Corporate Headquarters ...