The ZRT050 is a monolithic integrated circuit providing a
precise stable reference voltage of 4.9V at 500μA.
The circuit features a knee current of 150μA and operation
over a wide range of temperatures and currents.
The ZRT050 is available in a SOT223 package for surface
mount applications. This device offers a trim facility whereby
the output voltage can be adjusted as shown in the
schematic diagram. This facility is used when compensating
for system errors or setting the reference output to a
particular value. When the trim facility is not used, the pin
should be left open circuit.
Features
• Trimmable output
• Excellent temperature stability
• Low output noise figure
• -40 to 85°C operating temperature range
• 1% initial voltage tolerance
• No external stabilizing capacitor required in most cases
• Low slope resistance
• No derating required at low temperatures
• SOT223 small outline package
Pin Assignments
T
RIM
GND
V
R
(Pin 4 floating or
connected to pin 2)
SOT223
1
2
3
Top View
ZRT050
4
Schematic Diagram
This circuit will allow the reference to be trimmed over a wide range. The device is specified over a ±5% trim range.
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS
DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY A ND FITNESS FOR A
PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other
changes without further notice to this document and any product described herein. Diodes Incorporat ed does not assume any liability
arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any
license under its patent or trademark rights, nor the rights of others. A ny Customer or user of this document or products described
herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies
whose products are represented on Diodes Incorporated website, harml ess ag ai nst all damages.
Diodes Incorporated does not warrant or acc ept any liability whatsoever in respec t of any products purchas ed through unauthorized
sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall
indemnify and hold Diodes Incorporated and its representatives harmless agai nst all claims, damages, expenses, and attorney fees
arising out of, directly or indirectly, any claim of personal injury or death ass ociated with such unintended or unauthorized application.
Products described herein may be covered by one or more United Stat es, international or foreign patents pending. Product names
and markings noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without
the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herei n:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructi ons for us e provided
in the labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or syst em whose failure to perform can be reasonably expected
to cause the failure of the life support device or to affect its safety or effectiveness .
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or
systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements
concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems,
notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further,
Customers must fully indemnify Diodes Incorporated and its representatives agai nst any damages arising out of the use of Diodes
Incorporated products in such safety-critic al, l ife support devic es or syst ems .