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

| Image | Part No | Mfg | Description |  | Pricing (USD) | Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
|  |  MIC38C43BM |  |  IC REG CTRLR BST FLYBK ISO 8SOIC |  Data Sheet |  Negotiable |  | ||||
|  |  MIC38C43BM TR |  |  IC REG CTRLR BST FLYBK ISO 8SOIC |  Data Sheet |  Negotiable |  | ||||
|  |  MIC38C43BMM TR |  |  IC REG CTRLR BST FLYBK ISO 8MSOP |  Data Sheet |  Negotiable |  | ||||
|  |  MIC38C43BMM |  |  IC REG CTRLR BST FLYBK ISO 8MSOP |  Data Sheet |  Negotiable |  | ||||
 (China (Mainland))
 (China (Mainland)) 
                         
                        
 
                                    




