Product Summary

The MIC38C43BM is a fixed frequency, high performance, current mode PWM controller. The BiCMOS MIC38C43BM is pin compatible with 384x bipolar devices but feature several improvements.

Parametrics

MIC38C43BM absolute maximum ratings: (1)Zener Current (VDD): 30mA; (2)Supply Voltage (VDD): 20V; (3)Switch Supply Voltage (VD): 20V; (4)Current Sense Voltage (VISNS): -0.3V to 5.5V; (5)Feedback Voltage (VFB): -0.3V to 5.5V; (6)Output Current, 38C42/3/4/5 (IOUT): 0.5A; (7)Storage Temperature (TA): -65℃ to +150℃; (8)Operating Ratings Junction Temperature (TJ): 150℃; (9)Package Thermal Resistance, 8-Pin SOIC (θJA): 170℃/W.

Features

MIC38C43BM features: (1)Fast 40ns output rise and 30ns output fall times; (2)–40℃ to +85℃ temperature range meets UC284x specifications; (3)High performance, low power BiCMOS Process; (4)Ultralow start-up current (50μA typical); (5)Low operating current (4mA typical); (6)CMOS outputs with rail-to-rail swing; (7)≥ 500kHz current-mode operation; (8)Trimmed 5V bandgap reference; (9)Pin-for-pin compatible with UC3842/3843/3844/3845(A); (10)Trimmed oscillator discharge current; (11)UVLO with hysteresis; (12)Low cross-conduction currents.

Diagrams

MIC38C43BM Functional Diagram

Image Part No Mfg Description Data Sheet Download Pricing
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MIC38C43BM
MIC38C43BM


IC REG CTRLR BST FLYBK ISO 8SOIC

Data Sheet

Negotiable 
MIC38C43BM TR
MIC38C43BM TR


IC REG CTRLR BST FLYBK ISO 8SOIC

Data Sheet

Negotiable 
MIC38C43BMM TR
MIC38C43BMM TR


IC REG CTRLR BST FLYBK ISO 8MSOP

Data Sheet

Negotiable 
MIC38C43BMM
MIC38C43BMM


IC REG CTRLR BST FLYBK ISO 8MSOP

Data Sheet

Negotiable