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SG1842

Microsemi
Part Number SG1842
Manufacturer Microsemi
Description Current Mode PWM Controller
Published Aug 9, 2018
Detailed Description SG1842/SG1843 Current Mode PWM Controller Description The SG1842/43 family of control IC's provides all the necessary ...
Datasheet PDF File SG1842 PDF File

SG1842
SG1842

Overview
SG1842/SG1843 Current Mode PWM Controller Description The SG1842/43 family of control IC's provides all the necessary features to implement off-line fixed frequency, current-mode switching power supplies with a minimum number of external components.
Current-mode architecture demonstrates improved line regulation, improved load regulation, pulse-bypulse current limiting and inherent protection of the power supply output switch.
The bandgap reference is trimmed to ±1% over temperature.
Oscillator discharge current is trimmed to less than ±10%.
The SG1842/43 has under-voltage lockout, current limiting circuitry and start-up current of less than 1mA.
The totem-pole output is optimized to drive the gate of a power MOSFET.
The output is low in the off state to provide direct interface to an N-channel device.
The SG1842/43 is specified for operation over the full military ambient temperature range of -55°C to 125°C.
The SG2842/43 is specified for the industrial range of -25°C to 85°C,...


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