Flyback, Buck for Automotive (4.5V @ 0.05A)
PMP1941
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Description & Features

Technical documentation

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Description

A triple-output non-isolated flyback converter provides a regulated low voltage and two high voltage rails. A buck converter with an input transient voltage-clamping circuit produces a 5V rail. The addition of a dithering circuit creates spread-spectrum operation on the switching frequency to lower EMI, making this circuit suitable for automotive use.

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Parametrics
 PMP1941.1
(Output Voltage 1)
PMP1941.2
(Output Voltage 2)
PMP1941.3
(Output Voltage 3)
PMP1941.4
(Output Voltage 4)
PMP1941.5
(Output Voltage 5)
Vin (Min) (V)88888
Vin (Max) (V)3535353535
Vout (Nom) (V)82523.754.5
Iout (Max) (A).03.04.5.5.05
Output Power (W)2.462.081.852.5.225
Isolated/Non-IsolatedNon-IsolatedNon-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDCDCDCDC
TopologyFlyback- Non Sync
Flyback- CCM
Flyback- Non Sync
Flyback- CCM
Flyback- Non Sync
Flyback- CCM
Buck- Non SyncLinear Regulator

TI Devices (6)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS3803  Low-power voltage detector  Power management  Sample & Buy Not Available
TPS3803-EP  Single-Channel Voltage Detector  Power management  Sample & Buy Not Available
TPS3803-Q1  Automotive, single-channel voltage detectors  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS40200  Wide Input Non-Synchronous Buck DC/DC Controller  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS715  50-mA, 24-V, ultra-low-IQ, low-dropout voltage regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC28C41  20V, 1-A, low power 1MHz current mode PWM controller - 7V/6.6V UVLO 50% duty cycle, -40C to 105C  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS3803 Download Download
TPS3803-EP Download Download
TPS3803-Q1 Download Download
TPS40200 Download Download
Download Download
TPS715 Download Download
UCC28C41 Download Download
Download Download
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Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 3079 06 Jan 2011
Design files (2)
Title Type Size (KB) Date
PDF 24 06 Jan 2011
PDF 134 06 Jan 2011

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