ZRC500F02TC Datasheet ZRC500F01TA, ZRC500F02TA, ZRC500F02TC | P1-P3

ZRC500

PRECISION 5.0 VOLT LOW KNEE CURRENT VOLTAGE REFERENCE

ZRC500

Document number: DS32173 Rev. 5 - 2

1 of 5

www.diodes.com

March 2012

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Description

The ZRC500 uses a bandgap circuit design to achieve a

precision micropower voltage reference of 5.0 volts. The

device is available in small outline surface mount packages,

ideal for applications where space saving is important, as

well as packages for through hole requirements.

The ZRC500 design provides a stable voltage without an

external capacitor and is stable with capacitive loads. The

ZRC500 is recommended for operation between 25µA and

5mA 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 reference to withstand transient effects

and currents up to 200mA. Superior switching capability

allows the device to reach stable operating conditions in only

a few microseconds.

Features

• Small outline SOT23 packages

• No stabilizing capacitor required

• Low knee current, 19µA typical

• Typical T

C

30ppm/°C

• Typical slope resistance 0.4Ω

• ±2 and ±1% tolerance

• Industrial temperature range

• Operating current 25µA to 5mA

• Transient response, stable in less than 10µs

• Green molding compound (No Br, Sb)

Applications

• Battery powered and portable equipment

• Instrumentation

• Test equipment

• Metering and measurement systems

Pin Assignments

SOT23 Package Suffix – F

1

3

2

V

R

GND

(Top View)

Pin 1 floating or connected to pin 2

Typical Application Circuit

+

-

V

R

GND

ZRC500

PRECISION 5.0 VOLT LOW KNEE CURRENT VOLTAGE REFERENCE

ZRC500

Document number: DS32173 Rev. 5 - 2

2 of 5

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Absolute Maximum Ratings

Parameter Rating Unit

Reverse Current 25 mA

Forward Current 25 mA

Operating Temperature -40 to 85 °C

Storage Temperature -55 to 125 °C

Power Dissipation (T

AMB

= 25°C)

SOT23

330 mW

Electrical Characteristics (Test conditions: T

AMB

= 25°C, unless otherwise specified.)

Symbol Parameter Condition Min. Typ. Max. Tol. (%) Unit

V

R

Reverse breakdown voltage

I

R

= 150µA

4.95

4.9

5.0

5.05

5.1

1

2

V

I

MIN

Minimum operating current 19 25

µA

I

R

Recommended operating current 0.025 5

mA

T

C

(*)

Average reverse breakdown voltage

temperature coefficient

I

R(MIN)

to

I

R(MAX)

30 90

ppm/°C

R

S

(†)

Slope resistance 0.4 2

Ω

Z

R

Reverse dynamic impedance

I

R

= 1mA

f = 100Hz

I

AC

= 0.1I

R

0.3 0.8

Ω

E

N

Wideband noise voltage

I

R

= 150µA

f = 10Hz to

10kHz

105

µV(rms)

Note:

(*)

(

)

()

TT

x

V

1000000x

VV

T

)MIN()MAX(R

)MIN(R)MAX(R

C

−

=

Note: V

R(MAX)

– V

R(MIN)

is the maximum deviation in reference

voltage measured over the full operating temperature range

(†)

(

)

II

I

to

I

Change

V

R

)MIN(R)MAX(R

)MAX(R)MIN(RR

S

−

=

240

REVERSE VOLTAGE (V)

Reverse Characteristics

REVERSE CURRENT (µA)

60

20

0

T = 85°C

A

T = -40°C

A

T = 25°C

A

6

40

ZRC500

PRECISION 5.0 VOLT LOW KNEE CURRENT VOLTAGE REFERENCE

ZRC500

Document number: DS32173 Rev. 5 - 2

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Typical Characteristics

1.6

0.4

FO

R

WA

R

D VOLTAGE (V)

0.6

0.8

1.0

1.2

1.4

0.1 1 10 100 1000

FORWARD CURRENT (mA)

Forward Characteristics

20-40 -20 0 40 60 80

TEMPERATURE (°C)

Temperature Drift

5.08

4.94

5.00

R

E

F

E

R

E

N

C

E

VOL

T

A

G

E

(V)

100

5.06

5.04

5.02

4.98

4.96

0

1.0

2.0

3.0

SLOPE RESISTANCE ( )

Ω

0.1 1 10

REFERENCE CURRENT (mA)

Slope Resistance vs. Current

T = -40°C

A

T = 25°C

A

T = 85°C

A

100 1K 10K

FREQUENCY (KHz)

Slope Resistance vs. Frequency

10 100K

0.1

100

1000

SLO

P

E

R

ESISTA

N

C

E ( )

Ω

10

1

I = 150µA

R

I = 5mA

R

I = 1mA

R

0

100

200

TIME (µs)

Transient Response

(Single Pulse)

33K

150µA

V

IN

1K

5mA

150µA

300

0

10

0

2

4

6

V (V) V (V)

IN R

04

TIME (µs)

Transient Response

(Repetitive Pulse)

2

5mA

150µA

33K

150µA

V

IN

1K

5mA

6

0

10

0

2

4

6

V (V) V (V)

IN R

ZRC500F02TC

ZRC500F02TC

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