FEBFHR1200-SPG01A-GEVB

FEBFHR1200-SPG01A-GEVB Datasheet


FEBFHR1200_SPG01A Evaluation Board

Part Datasheet
FEBFHR1200-SPG01A-GEVB FEBFHR1200-SPG01A-GEVB FEBFHR1200-SPG01A-GEVB (pdf)
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User Guide for

FEBFHR1200_SPG01A Evaluation Board

High-Performance Shunt Regulator

Featured Fairchild Product FHR1200

Direct questions or comments about this evaluation board to:
“Worldwide Direct Support”

Fairchild Semiconductor.com
2014 Fairchild Semiconductor Corporation

Table of Contents

Introduction 4 Description 4 Features 5

Evaluation Board Specifications 6 Application Circuit Details 10

List of Tables

Table

VBE and VREF Values at 40 µA Grounded 13 Resistor Divider Values vs. Output Voltage Grounded Configuration 14 Resistor Divider Values vs. Output Voltage Grounded Configuration 15 Resistor Divider Values for Isolated Output 16 VBE & VREF Performance Over-Temperature Grounded 17 Simple, Low-Cost 0 to 6 V Regulator Resistor Values 22 Application #6 VCC or Brownout Regulator Resistor Values, LM431 Configured 24 VREF Temp Stability vs. IZ -55°C to +150°C Grounded Configuration 36 VREF Temperature Stability vs. IZ -40°C to +125°C Grounded Configuration 36
2014 Fairchild Semiconductor Corporation

List of Figures

Figure

Evaluation Board Photograph 5 Evaluation Board Floor Plan 6 Break-Away Part Adapters 7 Energy Storage Capacitor Charger 7 Power Supply Voltage 8 Low-Voltage Auxiliary Regulator 8 Low-Cost VCC or Brownout Regulator 9 Energy Storage Capacitor, Regulated High-Efficiency Charger 10 Energy Storage Capacitor Charger, Circuit Operation 11 Application Circuit #4 Overall Schematic 12 Application Circuit #4 Isolated Output, Grounded Output 12 Reference Temperature Stability at 200 µA & 1 mA Grounded Configuration....................... 14 Isolated Output Regulator 431 Configuration 15 Non-Isolated Output Regulator Grounded Configuration 16 Basic Concept of Primary-Side Regulator Grounded Configuration 17 Primary-Side Regulator Based on App #4 Grounded 18 Concept of Floating Regulator Based on App #4 18 Floating Regulator Using App #4 Circuit Grounded 19 Concept for Programmable Power Zener App #4 Circuit 19 Characterization of FHR1200 used as 20 FHR1200 Dynamic Impedance 20 Concept and Actual Voltage Reference Using App #4 Circuit 21 How to Add the App #4 Module to an Existing Power 21 Simple, Low-Cost 0 to 6 V Regulator Application Circuit #5 22 FHR1200 Thermal 23 Application #5 V Power Supply Thermal Calculation 23 Application #6 VCC or Brownout Regulator 24 Application #6 Brownout & Auxiliary Regulator LM431 Configured 25 Evaluation Board 26 Connecting the Evaluation Board for 29 Break-Away Detail for Socket Adapters 29 Testing the FHR1200 Devices on the Socket Adapters 30 Test of the Energy Capacitor Charger 30 Energy Capacitor Charger Circuit Operation Description 31 Voltage Regulator Circuit Checkout 31 V Low-Voltage Regulator Checkout 32 VCC or Brownout Regulator Circuit Checkout 32 Calculating the FHR1200 Reference Temperature 33 LM431 Configured Reference Temperature Stability 33 VREF 10 µA, 25 µA IZ Temperature Stability Grounded Configuration 34 VREF 40 µA, 60 µA IZ Temperature Stability Grounded Configuration 34 VBE 10 µA, 25 µA IZ Temperature Stability Grounded 35 VBE 40 µA, 60 µA IZ Temperature Stability Grounded 35 BJT hfe Variation Over Temperature 37 Zener Voltage vs. IZ vs. 37 Zener Temperature Coefficient Change Over Temperature 38 FHR1200 Small-Signal 38
2014 Fairchild Semiconductor Corporation

This user guide supports four applications for the FHR1200. It should be used in conjunction with the FHR1200 datasheet as well as Fairchild’s application notes and technical support team. Please visit Fairchild’s website at

Introduction

This document describes four proposed applications for the FHR1200 high-performance shunt regulator. These include:

A. Two each SC70-to-DIP adapters The small size of the SC70 can make it difficult to solder to the part for prototyping. Each adapter is supplied with a FHR1200 already soldered down.

B. A V-to-12 V regulated energy-storage-capacitor charger. Some smart meters only consume around 250 mW 99% of the time so can use a single V low-power offline supply. However, to transmit, they require much higher power for a few milliseconds and can pull this voltage from a storage capacitor charged to a higher voltage.

C. Voltage regulator and reference This module can be used with most power supply topologies and on isolated, non-isolated, primary-side, and floating applications.

D. Low-cost, low-voltage auxiliary regulator Some designs need a regulated voltage in the 0 to 6 V range at just a few milliamps. The FHR1200 makes it possible to create a lowcost regulator for this application and can operate with an input voltage to >100 V.

E. Simple VCC or brownout regulator Many power supply designs require that the VCC voltage be regulated for the controller. The low operating current, high voltage and wide temperature range make the FHR1200 a good choice for general regulation applications.

This document contains a general description of the FHR1200, the specifications for each application circuit, schematics, bill of materials, and the typical operating characteristics.

The FHR1200 is a high-efficiency regulator that outperforms a typical shunt regulator in applications where low operating power, wide temperature range, and wide voltage range are important. The regulator also features better stability and faster response than many existing regulators.

The FHR1200 can be used for isolated and non-isolated secondary side regulation plus, primary side, and floating regulation because the regulator can directly drive a power supply controller. This reduces parts count and circuit complexity in many applications. Non-isolated secondary-side regulation saves the cost of OPTOs and simplifies the power supply design.

The FHR1200 can be used in many diverse applications. For example VCC regulators to >100 V, small additional auxiliary power supplies, programmable precision Zener diodes both high and low power , plus numerous analog circuits.

The FHR1200 can also be used as a standalone, low-cost, thermally stable, V voltage reference.
2014 Fairchild Semiconductor Corporation
• Low Current Operation <10 µA
• Programmable Output to >100 V
• Fewest External Component Count
• Temperature Compensated Typical <50 ppm
• Low Dynamic Impedance
• Fast Turn-On
• Low Output Noise
• Sink Current Capability 10 µA to 50 mA
• Reference Voltage Accuracy ±2%
• Wide Operating Temperature Range -55 to 150°C
• Available in the 6-Lead SC70 Package

Figure Evaluation Board Photograph Enlarged

The evaluation board is the size of an average business card, yet consists of six isolated PCB circuits that can make it quicker and easier to evaluate many potential applications. For example, the designer can use the break-away voltage regulator app #4 to substitute for the existing output regulator on the power supply to evaluate the improvement over a current design saving the cost and time of a PCB update to evaluate the part.
2014 Fairchild Semiconductor Corporation

Figure Evaluation Board Floor Plan
2014 Fairchild Semiconductor Corporation

Evaluation Board Specifications

Figure Break-Away Part Adapters
More datasheets: 191-2811-034 | 191-2811-020 | 191-2811-040 | 191-2811-037 | 191-2811-024 | 191-2811-025 | 191-2811-016 | 191-2811-060 | AS1160-BCCT | AS1161-BCCT


Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived FEBFHR1200-SPG01A-GEVB Datasheet file may be downloaded here without warranties.

Datasheet ID: FEBFHR1200-SPG01A-GEVB 514473