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TI UCC2583D

Fabricante
TI
N.º de pieza fab.
UCC2583D
Nº LCSC
C1529888
Emb.
SOIC-14
Número de Cliente
Atrib. clave
90kHz~110kHz 8.9V~14V SOIC-14 AC DC Converters, Offline Switchers RoHS
Hoja de DatosTI UCC2583D
Cumplimiento RoHS1 documentos disponibles
Agotado
Avisarme
Mínimo: 1Múltiplo: 1Unidad de venta: Piece
Añadir a la Lista BOM
Cant.Prec. unit.(Solo como referencia)Importo total
1+$ 3.507$ 3.51
200+$ 1.3574$ 271.48
500+$ 1.3098$ 654.90
1,000+$ 1.286$ 1286.00
Encapsulado Estándar50/Full Tube
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Especificaciones del Producto

Todo
TipoDescripción
CategoríaIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
FabricanteTI
Emb.SOIC-14
Operating Temperature-40℃~+85℃
Frequency - Switching90kHz~110kHz
Output Current-
Pd - Power Dissipation-
Voltage - Breakdown-
Voltage - Supply8.9V~14V
FeaturesAdjustable soft-start;Adjustable current limiting;Under-voltage lockout;Under Voltage Protection
Topology-
Output Voltage-
Duty Cycle(Max)100%
Feedback System-
Working Mode-
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Descripción

Traducción por IA
  • Precision Secondary Side Post Regulation for Multiple Output Power Supplies
  • Useful for Both Single Ended and Center Tapped Secondary Circuits
  • Ideal Replacement for Complex Magnetic Amplifier Regulated Circuits
  • Leading Edge Modulation
  • Does Not Require Gate Drive Transformer
  • High Frequency (>500kHz) Operation
  • The UCC3583 is a synchronizable secondary side post regulator for precision regulation of the auxiliary outputs of multiple output power supplies. It contains a leading edge pulse width modulator, which generates the gate drive signal for a FET power switch connected in series with the rectifying diode. The turn-on of the power switch is delayed from the leading edge of the secondary power pulse to regulate the output voltage. The UCC3583 contains a ramp generator slaved to the secondary power pulse, a voltage error amplifier, a current error amplifier, a PWM comparator and associated logic, a gate driver, a precision reference, and protection circuitry.
  • The ramp discharge and termination of the gate drive signal are triggered by the synchronization pulse, typically derived from the falling edge of the transformer secondary voltage. The ramp starts charging again once its low threshold is reached. The gate drive signal is turned on when the ramp voltage exceeds the control voltage. This leading edge modulation technique prevents instability when the UCC3583 is used in peak current mode primary controlled systems.
  • The controller operates from a floating power supply referenced to the output voltage being controlled. It features an undervoltage lockout (UVLO) circuit, a soft start circuit, and an averaging current limit amplifier. The current limit can be programmed to be proportional to the output voltage, thus achieving foldback operation to minimize the dissipation under short circuit conditions.

Características

Traducción por IA
  • Precision Secondary Side Post Regulation for Multiple Output Power Supplies
  • Useful for Both Single Ended and Center Tapped Secondary Circuits
  • Ideal Replacement for Complex Magnetic Amplifier Regulated Circuits
  • Leading Edge Modulation
  • Does Not Require Gate Drive Transformer
  • High Frequency (>500kHz) Operation