ZXRE252BSA-7 Diodes Inc. / Zetex, ZXRE252BSA-7 Datasheet

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ZXRE252BSA-7

Manufacturer Part Number
ZXRE252BSA-7
Description
Voltage & Current References Shunt Regulator
Manufacturer
Diodes Inc. / Zetex
Datasheet

Specifications of ZXRE252BSA-7

Rohs
yes
Product
Current References
Topology
Shunt References
Output Voltage
2.5 V to 36 V
Initial Accuracy
0.5 %
Shunt Current (max)
100 mA
Maximum Operating Temperature
+ 125 C
Package / Case
SOT-23
Input Voltage
2.495 V
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Reference Type
Adjustable
Series Vref - Input Voltage (max)
2.507 V
Series Vref - Input Voltage (min)
2.482 V
Series Vref - Supply Current (max)
- 0.05 mA to + 10 mA
Shunt Current (min)
0.065 mA

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ZXRE252BSA-7
Manufacturer:
DIODES/美台
Quantity:
20 000
Applications
Description
The ZXRE250 and ZXRE252 are three terminal adjustable
shunt regulators offering excellent temperature stability and
output current handling capability up to 100mA. The output
voltage may be set to any chosen voltage between 2.5 and
36 volts by selection of two external divider resistors.
ZXRE250 has the same electrical specifications as the
industry standard ‘431 except that it features a very low
minimum cathode current for regulation. The typical value of
40µA makes the parts ideal for very low power applications.
The devices can be used as a replacement for zener diodes
in many applications requiring an improvement in zener
performance. The ZXRE250/2 is available in 2 grades with
initial tolerances of 1% and 0.5% for the A and B grades
respectively.
Features
• SOT23 and SOT25: Available in “Green” Molding
Notes:
ZXRE250/ZXRE252
Document number: DS35228 Rev. 3 - 2
Minimum cathode current for regulation: 40μA (typ)
Temperature range -40 to 125ºC
Reference Voltage Tolerance at 25°C
o
o
Low Output Noise
0.2Ω Typical Output Impedance
Sink Current Capability: 0.065mA to 100mA
Adjustable Output Voltage: V
Compound (No Br, Sb) and Lead Free Finish/ RoHS
Compliant (Note 1)
Opto-Coupler Linearisers
Shunt Regulators
Improved Zener
Variable Reference
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
ZXRE250A: 2.495V ± 1.0%.
ZXRE250B: 2.495V ± 0.5%
http://www.diodes.com/products/lead_free.html.
REF
to 36V
www.diodes.com
VERY LOW CATHODE CURRENT ADJUSTABLE
1 of 14
Pin Assignments
Leave floating or
Leave floating or
connect to pin 5
connect to pin 5
CATHODE
CATHODE
PRECISION SHUNT REGULATOR
ANODE
ANODE
ZXRE250/ZXRE252
ANODE
ANODE
NC
NC
(Top View)
(Top View)
1
1
ZXRE250
(Top View)
(Top View)
(Top View)
(Top View)
1
1
2
2
3
3
1
1
ZXRE252
SOT23
SOT23
SOT25
SOT25
SOT23
SOT23
3
3
2
2
5
5
4
4
3
3
2
2
REF
REF
CATHODE
CATHODE
REF
REF
ANODE
ANODE
CATHODE
CATHODE
REF
REF
© Diodes Incorporated
May 2011

Related parts for ZXRE252BSA-7

ZXRE252BSA-7 Summary of contents

Page 1

Description The ZXRE250 and ZXRE252 are three terminal adjustable shunt regulators offering excellent temperature stability and output current handling capability up to 100mA. The output voltage may be set to any chosen voltage between 2.5 and 36 volts by selection ...

Page 2

Absolute Maximum Ratings Symbol V Cathode Voltage KA I Continuous Cathode Current KA I Reference Input Current REF T Operating Junction Temperature J T Storage Temperature ST P Power Dissipation (Notes Notes: 2. Operation above the absolute ...

Page 3

Electrical Characteristics (T A Symbol Parameter V Reference voltage REF Deviation of reference voltage over V DEV full temperature range (Note 5) ΔV Ratio of the change in reference REF ΔV voltage to the change in cathode KA voltage I ...

Page 4

Test Circuits ZXRE250/ZXRE252 Document number: DS35228 Rev VERY LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR Figure 1. Test circuit for REF Figure 2. Test circuit for V > REF Figure 3. ...

Page 5

Typical Performance Characteristics 2600 2580 2560 2540 2520 2500 2480 2460 2440 2420 2400 -55 -35 - Free Air Temperature ( C) A Reference Voltage vs. Free Air Temperature 150 REF ° ...

Page 6

Typical Performance Characteristics 0. 36V KA 0. REF 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 -75 -50 - Free Air Temperature ( C) A Off-State Cathode Current vs. Free Air ...

Page 7

Typical Performance Characteristics -10 - Time (Seconds) Equivalent Input Noise Voltage Over A 10-S Period Figure 4. Test circuit for noise input voltage ZXRE250/ZXRE252 Document number: DS35228 Rev. ...

Page 8

Typical Performance Characteristics 100 1K 10K 100K f Frequency (Hz) Small-Signal Voltage Amplification vs. Frequency 100.0 10.0 1.0 0.1 0.0 1K 10K 100K f Frequency (Hz) Reference Impedance vs. Frequency ZXRE250/ZXRE252 Document ...

Page 9

Typical Performance Characteristics 6 Input Out put μ t Time ( s) Pulse Response 100 Stable Stable 60 50 ...

Page 10

Applications Information   Shunt Regulator Output Control of a Three Terminal Fixed Regulator Single Supply Comparator with Temperature Compensated Threshold ZXRE250/ZXRE252 Document number: DS35228 Rev ZXRE250/ZXRE252 VERY LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR Higher Current Shunt ...

Page 11

Ordering Information Pinout variation Pinout variation 0: Standard pinout 0: Standard pinout 2: Reversed pinout in SOT23 2: Reversed pinout in SOT23 Device Packaging Package Code (Note 7) (Note 5) ZXRE250A(B)SA-7 SA SOT23 ZXRE250A(B)W5-7 W5 SOT25 ZXRE252A(B)SA-7 SA SOT23 Notes: ...

Page 12

... Marking Information (1) SOT23 ( Top View ) Device ZXRE250ASA ZXRE250BSA ZXRE252ASA ZXRE252BSA (2) SOT25 ( Top View ) Device ZXRE250AW5 ZXRE250BW5 ZXRE250/ZXRE252 Document number: DS35228 Rev VERY LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR Identification code Y : Year 0 Week : A~Z : 1~26 week; ...

Page 13

Package Outline Dimensions (1) Package type: SOT25 (2) Package Types: SOT23 ZXRE250/ZXRE252 Document number: DS35228 Rev ZXRE250/ZXRE252 VERY LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR (All Dimensions in mm www.diodes.com May 2011 © Diodes ...

Page 14

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 AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY ...

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