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Si9114A

Features: ·15- to 200-V Input Range· Current-Mode Control· Internal Start-Up Circuit· Latched SHUTDOWN· Soft-Start· 1.8-MHz Error Amp PinoutSpecificationsVoltages Referenced to −VINVCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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SeekIC No. : 004490888 Detail

Si9114A: Features: ·15- to 200-V Input Range· Current-Mode Control· Internal Start-Up Circuit· Latched SHUTDOWN· Soft-Start· 1.8-MHz Error Amp PinoutSpecificationsVoltages Referenced to −VINVCC . . . ....

Si9114A Data Sheet

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Part Number:
Si9114A
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·15- to 200-V Input Range
· Current-Mode Control
· Internal Start-Up Circuit
· Latched SHUTDOWN
· Soft-Start
· 1.8-MHz Error Amp


Pinout

Connection Diagram


Specifications

Voltages Referenced to −VIN
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
+VIN (Note: VCC < +VIN + 0.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 V
Logic Input (SHUTDOWN, SYNC) . . . . . . . . . . . . . . . . −0.3 V to VCC + 0.3 V
Linear Inputs (FEEDBACK, SENSE,
SOFT-START) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to VCC + 0.3 V
HV Pre-Regulator Input Current (continuous) . . . . . . . . . . . . . . . . . . . . . 5 mA
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65 to 150
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40 to 85
Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Power Dissipation (Package)a
14-Pin Plastic Dip (J Suffix)b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750 mW
14-Pin SOIC (Y Suffix)c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW
Thermal Impedance(JA)
14-Pin Plastic Dip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167/W
14-Pin SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140/W
Notes
a. Device mounted with all leads soldered or welded to PC board.
b. Derate 6 mW/ above 25.
c. Derate 7.2 mW/ above 25.


Description

The Si9114A is a BiC/DMOS current-mode pulse width modulation (PWM) controller IC for high-frequency dc/dc converters. Single-ended topologies (forward and flyback) can be implemented at frequencies up to 1 MHz. The oscillator has an internal divide-by-two that limits the duty ratio to 50%. An oscillator sync output allows converters to be synchronized in phase as well as in frequency, in a master/slave configuration.

The output inverter Si9114A  can typically source 500 mA and sink 700 mA. Shoot-through current is all but eliminated to minimize supply current requirements.

The high-voltage DMOS transistor Si9114A  allows the IC to interface directly to bus voltages up to 200 V. Other features include a 1.5% accurate voltage reference, 1.8-MHz (min) bandwidth error amplifier, shutdown logic control, soft-start and undervoltage lockout circuits.

The Si9114A is available in both standard and lead (Pb)-free 14-pin plastic DIP and SOIC packages, and is specified over the industrial, D suffix (−40 to 85 temperature range.




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