HTD1R5B-1200D DC-DC Converter

The HTD Series of high temperature DC-DC converters is specifically designed for extreme temperature environments.

Hybrid microcircuit technology provides superior reliability in high temperature applications. Bare semiconductor die are integrated with passive components using thick film conductors on a ceramic substrate. A hermetic metal package protects internal components for long term reliability.

The HTD1R5B Series utilizes a boundary mode, peak current controlled flyback topology with primary side regulation. The flyback topology achieves high efficiency at low power levels, over a wide input voltage range.

High temperature performance is guaranteed through qualification, component lot testing and analysis. The HTD Series has been characterized over the full operating temperature range from -55 °C to +155 °C, including electrical performance, operating life, temperature cycling, mechanical shock and vibration.

The HTD Series is intended for harsh environments including down-hole oil and gas, MWD/LWD and wireline logging tools, aircraft engine electronics, and other industrial applications.

Features:

  • Guaranteed performance to 155 °C operating temperature
  • Characterized to 185 °C
  • Isolated
  • 1.2 W rated output power
  • Extended operation up to 1.5 W
  • Wide input voltage range
  • Low noise
  • Undervoltage lockout
  • Short circuit protection
  • Soft start

Compliances and Certifications:

  • Manufactured in a MIL-PRF-38534 Class H and Class K facility
  • MIL-STD-883
  • ISO-9001

Summary Data

For complete specifications, please see the official datasheet.

To provide you with the most accurate data for the actual performance of this product once deployed, please note that the electrical performance data provided below is at Tcase = -55° C to +155° C, Vin= +12V ±5%, Pout = 1.2W, unless otherwise specified.

Select a product to view its specifications:

ParameterConditionsHTD1R5B-1205DUnits
MinTypeMax
Input VoltageContinuous
Transient, 1 sec
61220
30
V
V
Output VoltageFull Load, Adjustable Vout4.80
4.75
5
5
5.20
5.25
V
V
Output PowerTotal
Either Output
0
0
1.2
0.9
W
W
Efficiency7076%
Input Ripple20 Hz to 10 MHz3050mApp
Output Ripple20 Hz to 10 MHz2050mVpp
Load Regulation±Vout, 0.12W to 1.2W Load
±Vout, 0.6W to 1.2W Load
240
120
400
250
mV
mV
Line Regulation±/-Vout, VIN = 6 V to 20 V70150mV

(1) Transient time up to 1 second.