MIC38C43ABM

MIC38C43ABM

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Micrel Inc.
MIC38C43ABM
CURRENT-MODE PWM CONTROLLER
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$0.70

Price update:a months ago
Available in stock: 667
45
Serves customers in 45 countries
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Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
Micrel Inc.

Micrel Inc.

Microchip Technology Inc. stands as a preeminent purveyor of microcontroller and analog semiconductors, proffering a realm of diminished venture in product evolution, abridged aggregate system expenditure, and expedited market entry, spanning a myriad of heterogeneous patron implementations globally. With its central command stationed in Chandler, Arizona, Microchip avails itself of superlative technical assistance, concomitant with unwavering consignment and excellence.

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MIC38C43ABM Products

The MIC38C4x are fixed frequency, high performance, current-mode PWM controllers. BiCMOS devices are pin compatible with 384x bipolar devices but feature several improvements.Undervoltage lockout circuitry allows the '42 and '44 versions to start up at 14.5V and operate down to 9V, and the '43 and '45 versions start at 8.4V with operation down to 7.6V. All versions operate up to 20V.When compared to bipolar 384x devices operating from a 15V supply, start-up current has been reduced to 50µA typical and operating current has been reduced to 4.0 mA typical. Decreased output rise and fall times drive larger MOSFETs, and rail-to-rail output capability increases efficiency, especially at lower supply voltages. The MIC38C4x also features a trimmed oscillator discharge current and bandgap reference.MIC38C4x denotes 8-pin plastic DIP, SOIC, and MM8® packages. MIC38C4x-1 denotes 14-pin plastic DIP and SOIC packages. 8-pin devices feature small size, while 14-pin devices separate the analog and power connections for improved performance and power dissipation.For fast rise and fall times and higher output drive, refer to the MIC38HC4x.

Feature

  • Fast 40ns output rise and 30ns output fall times
  • -40°C to +85°C temperature range meets UC284x specifications
  • High-performance, low-power BiCMOS Process
  • Ultra-low start-up current (50µA typical)
  • Low operating current (4mA typical)
  • CMOS outputs with rail-to-rail swing
  • ≥500kHz current-mode operation
  • Trimmed 5V bandgap reference
  • Pin-for-pin compatible with UC3842/3843/3844/3845(A)
  • Trimmed oscillator discharge current
  • UVLO with hysteresis
  • Low cross-conduction currents

Product Attributes

TYPE DESCRIPTION Select all
Product Status Obsolete
Clock Sync No
Synchronous Rectifier Yes
Frequency - Switching 500kHz
Voltage - Supply (Vcc/Vdd) 7.6V ~ 20V
Output Phases 1
Supplier Device Package 8-SOIC
Number of Outputs 1
Package / Case 8-SOIC (0.154", 3.90mm Width)
Topology Buck, Boost, Flyback, Forward Converter
Mounting Type Surface Mount
Output Configuration Positive, Isolation Capable
Operating Temperature -40°C ~ 85°C (TA)
Function Step-Up, Step-Down, Step-Up/Step-Down
Control Features Frequency Control
Output Type Transistor Driver
Package Bulk
Duty Cycle (Max) 96%

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$0.70

Price update:a months ago
Available in stock: 667
Micrel Inc.

Micrel Inc.

Microchip Technology Inc. stands as a preeminent purveyor of microcontroller and analog semiconductors, proffering a realm of diminished venture in product evolution, abridged aggregate system expenditure, and expedited market entry, spanning a myriad of heterogeneous patron implementations globally. With its central command stationed in Chandler, Arizona, Microchip avails itself of superlative technical assistance, concomitant with unwavering consignment and excellence.

View All Product from Micrel Inc.

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