ZR4040-5.0
ZR4040-5.0
Document number: DS32179 Rev. 4 - 2 1 of 5
www.diodes.com June 2010
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A
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Diodes Incorporated
PRECISION 5.0 VOLT MICROPOWER VOLTAGE REFERENCE
Description
The ZR4040-5.0 uses a bandgap circuit design to achieve a
precision micropower voltage reference of 5.0 volts. The
device is avail able in a sm all outline s urface mount package,
ideal for applications where space saving is important, as
well as packages for through hole requ irements.
The ZR4040-5.0 des ign provides a stable v oltage without an
external capacitor and is stable with capacitive loads. The
ZR4040-5.0 is recommended for operation between 60A
and 15mA and so is ideally suited to low power and battery
powered applications.
Excellent performance is maintained to an absolute
maximum of 25mA, however the rugged design and 20 volt
processing allows the refere nce to withstand transient effects
and currents up to 200mA. Superior switching capability
allows the device to reach stable operati ng conditions i n only
a few microseconds.
Features
• Small outline SOT23 packag e
• No stabilising capac itor required
• Typical TC 20ppm/°C
• Typical slope resistanc e 0.33
• 2% and 1% tolerance
• Automotive temperature range
• Operating current 60A to 15mA
• Transient response,stable in l ess than 1 0s
• Green molding compound (No Br, Sb)
Applications
• Battery powered and portable equipment
• Metering and measurement systems
• Instrumentation
• Test equipment
• Data acquisition systems
• Precision power supplies
Pin Assignments
SOT23 Package Suffix - F
(Top View)
Pin 1 floating or connected to pin 2
E-Line, 3 pin, Rev Package Suffix – R
(Bottom View)
Pin 3 floating or connected to pin 1
Typical Application Circuit
OBSOLETE
ZR4040-5.0
ZR4040-5.0
Document number: DS32179 Rev. 4 - 2 2 of 5
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Absolute Maximum Ratings (Voltages to GND Unless Otherw ise Stated)
Paramete
r
Rating Unit
Reverse Current 25 mA
Forward Current 25 mA
Operating Temperature -55 to 125 °C
Storage Temperature -55 to 125 °C
Power Dissipation (TAMB = 25°C)
SOT23 330 mW
Electrical Characteristics (Test conditions: Tamb = 25°C, unless otherwise specified.)
Symbol Parameter Condition Min. Typ. Max. Tol. (%) Unit
VR Reverse breakdown voltage IR = 150µA 4.95 5.0 5.05 1 V
IMIN Minimum operating current 30 60 µA
IR Recommended operating current 0.06 15 mA
TC(*) Average reverse breakdown voltage
temperature coefficient
-40 to 85°C
IR(MIN) to
IR
(
MAX
)
20 100
ppm/°C
TC(*) Average reverse breakdown voltage
temperature coefficient
-40 to 125°C
IR(MIN) to
IR
(
MAX
)
40 125
ppm/°C
RS(†) Slope resistance 0.33 1.5
ZR Reverse dynamic impedance IR = 1mA
f = 100Hz
IAC = 0.1I
R
0.4 1.0
EN Wideband noise voltage IR = 1mA
f = 10Hz to
10kHz 105 µV(rms)
Notes:
Note: VR(MAX) - VR(MIN) is the maximum deviation in reference
voltage measured over the full operating temperature range.
.
(*) TC = (VR
(
MAX
)
– VR
(
MIN
)
) x 1000000
VR x (T
(
MAX
)
– T
(
MIN
)
)
(†) RS = VR Change (IR
(
MIN
)
to IR
(
MAX
)
)
IR
(
MAX
)
– IR
(
MIN
)
)
ZR4040-5.0
ZR4040-5.0
Document number: DS32179 Rev. 4 - 2 4 of 5
www.diodes.com June 2010
© Diodes Incorporated
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Diodes Incorporated
Ordering Information*
Order
Reference Tol
(%) Package Device
Mark Status (*) Reel Size
(inches) Quantity
per reel Tape Width
(mm)
ZR40401F50TA 1 SOT23 50M Released 7 3000 8
ZR40402F50TA 2 SOT23 50L Not Recommende d
for New Designs 7 3000 8
Notes: *All ZR4040R50 variants (E-Line) are obsolete.
Package Outline Dimensions
SOT23
E
e
L
e1
D
A
c
E1
L1
A1
b
3leads
Dim. Millimeters Inches Dim. Millimeters Inches
Min. Max. Min. Max. Min. Max. Min. Max.
A - 1.12 - 0.044 e1 1.90 NOM 0.075 NOM
A1 0.01 0.10 0.0004 0.004 E 2.10 2.64 0.083 0.104
b 0.30 0.50 0.012 0.020 E1 1.20 1.40 0.047 0.055
c 0.085 0.20 0.003 0.008 L 0.25 0.60 0.0098 0.0236
D 2.80 3.04 0.110 0.120 L1 0.45 0.62 0.018 0.024
e 0.95 NOM 0.037 NOM - - - - -
Note: Controlling dimensions are in millimeters. Approximate dimensions are provided in inches
ZR4040-5.0
ZR4040-5.0
Document number: DS32179 Rev. 4 - 2 5 of 5
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Diodes Incorporated
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