PTN78000 Wide-Input Non-Isolated Power Module

Power Modules Ease System Design in Security Cameras - Now Available at Digi-Key

PTN78000 Wide-Input, Non-Isolated Power ModuleTexas Instruments' PTN78 series wide-input, non-isolated power modules simplify power management designs in security cameras. The diagram in the Overview tab shows a typical power management circuit that is powered by a wall-mount AC/DC adapter. A 24V battery is used to provide emergency backup power. Due to the wide output voltage tolerance of the 24V from the AC/DC adapter, the circuit requires DC/DC modules capable of operating over a wide input voltage range.

The flexible PTN78000, PTN78060 and PTN78020 series of 1.5A, 3A and 6A devices can be used in a wide variety of applications that require input voltages from 7V to 36V. The modules are lead (Pb)-free, and RoHS-compliant, and provide a precisely regulated output voltage that is adjustable via an external resistor. Providing excellent line and load regulation, the modules deliver efficiencies of up to 96%.

Overview

PTN78 series modules provide a single regulated output over a wide input voltage range. The modules in this diagram are shown operating from a 24V input. One module provides a 12V output to a motor control circuit for the camera's focus and zoom functions. The other module provides a 3.3V output to a video amplifier and a PTH04070W non-isolated module, which produces a 1.2V output for a DSP's core voltage.

Diagram

Related Product

3A, 3.3V/5V Input Adjustable Switching Regulator
The PTH04070W is a highly integrated, low-cost switching regulator module that delivers up to 3A of output current. Occupying less PCB area than a standard TO-220 linear regulator IC, the PTH04070W provides output current at a much higher efficiency and with much less power dissipation, thereby eliminating the need for a heat sink. Their small size (0.5in x 0.4in), high efficiency, and low cost make these modules attractive for a variety of applications.

Features
  • Up to 3A output current at 85°C
  • 3.3V/5V input voltage and wide-output voltage adjust (0.9V to 3.6V)
  • 160 W/in3 power density
  • Efficiencies up to 94%
  • On/Off inhibit
  • Undervoltage lockout (UVLO)
  • Output overcurrent protection (nonlatching, auto-reset)
  • Overtemperature protection
  • Ambient temperature range: -40°C to 85°C

PTH04070 Series

ImageManufacturer Part NumberDescriptionTypeNumber of OutputsAvailable Quantity
PTH04070WAH datasheet linkMODULE PIP .9-3.6V 3A HORZ T/HPTH04070WAHMODULE PIP .9-3.6V 3A HORZ T/HNon-Isolated PoL Module11145 - Immediate
PTH04070WAH product page link
PTH04070WAZ datasheet linkMODULE PIP .9-3.6V 3A SMDPTH04070WAZMODULE PIP .9-3.6V 3A SMDNon-Isolated PoL Module1854 - Immediate
90 - Factory Stock
PTH04070WAZ product page link
View More

PTN78000 Series

ImageManufacturer Part NumberDescriptionTypeNumber of OutputsAvailable Quantity
PTN78000AAH datasheet linkREG SW -15 TO -3.3V 1.5A HORZ THPTN78000AAHREG SW -15 TO -3.3V 1.5A HORZ THNon-Isolated PoL Module11047 - Immediate
1176 - Factory Stock
PTN78000AAH product page link
PTN78000AAZ datasheet linkREG SW -15 TO -3.3V 1.5A SMDPTN78000AAZREG SW -15 TO -3.3V 1.5A SMDNon-Isolated PoL Module1306 - Immediate
PTN78000AAZ product page link
View More

PTN78020 Series

ImageManufacturer Part NumberDescriptionTypeNumber of OutputsAvailable Quantity
PTN78020AAH datasheet linkREG SW -15 TO -3V 4A HORZ T/HPTN78020AAHREG SW -15 TO -3V 4A HORZ T/HNon-Isolated PoL Module1284 - Immediate
PTN78020AAH product page link
PTN78020AAZ datasheet linkREG SW -15 TO -3V 4A SMDPTN78020AAZREG SW -15 TO -3V 4A SMDNon-Isolated PoL Module1398 - Immediate
PTN78020AAZ product page link
View More

PTN78060 Series

ImageManufacturer Part NumberDescriptionTypeNumber of OutputsAvailable Quantity
PTN78060HAZ datasheet linkREGULATOR WIDE-IN 3A HORZ SMDPTN78060HAZREGULATOR WIDE-IN 3A HORZ SMDNon-Isolated PoL Module1481 - Immediate
PTN78060HAZ product page link
PTN78060AAH datasheet linkREG SW -15 TO -3V 3A HORZ T/HPTN78060AAHREG SW -15 TO -3V 3A HORZ T/HNon-Isolated PoL Module1236 - Immediate
PTN78060AAH product page link
View More

Related Part PTH04070W

ImageManufacturer Part NumberDescriptionTypeNumber of OutputsAvailable Quantity
PTH04070WAH datasheet linkMODULE PIP .9-3.6V 3A HORZ T/HPTH04070WAHMODULE PIP .9-3.6V 3A HORZ T/HNon-Isolated PoL Module11145 - Immediate
PTH04070WAH product page link
PTH04070WAZ datasheet linkMODULE PIP .9-3.6V 3A SMDPTH04070WAZMODULE PIP .9-3.6V 3A SMDNon-Isolated PoL Module1854 - Immediate
90 - Factory Stock
PTH04070WAZ product page link
View More
Published: 2009-12-23