Datasheet SC4041ASKTR, SC4041ASTR, SC4041AZTA, SC4041AZTR, SC4041BSKTR Datasheet (Semtech Corporation)

© 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

PRECISION SHUNT VOLTAGE
REFERENCE

SC4041

PRELIMINARY - April 13, 1998

1

FEATURES

The SC4041 is a two terminal precision voltage
reference with thermal stability guaranteed over
temperature. The very low fixed output voltage of

1.225 V is ideal for use with today’s low voltage
integrated circuits. The SC4041 has a typical dynamic
output impedance of 0.25Ω. Active output circuitry
provides a very sharp turn on characteristic - the
minimum operating current is 60µA, with a maximum
of 20mA.

Available with five voltage tolerances (0.1%, 0.2%,

0.5%, 1.0% and 2.0%) and three package outlines
(SOT-23, SO-8 and TO-92), this part allows the
designer the opportunity to select the optimum
combination of cost and performance for their
application.

APPLICATIONS

•

Low voltage operation (1.225V)

•

Trimmed bandgap design (0.1%)

•

Wide operating current range 60µA to 20mA

•

Low dynamic impedance (0.25Ω)

•

Available in SOT-23, TO-92 and SO-8

•

Cellular telephones

•

Portable computers

•

Instrumentation

•

Automotive

BLOCK DIAGRAM

SYMBOL DIAGRAM

PIN CONFIGURATIONS

SOT-23-3 Lead (Top View)

SO-8 Lead (Top View)

TO-92 (Top View)

Cathode

Anode

Cathode

Anode

DESCRIPTION

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© 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

PRECISION SHUNT VOLTAGE
REFERENCE

SC4041

PRELIMINARY - April 13, 1998

2

Parameter Symbol Maximum Units

Reverse Current 60 µA to 20 mA
Operating Temperature Range T

A

-40 to +85 °C

Operating Junction Temperature Range T

J

-40 to +150 °C

Storage Temperature Range T

STG

-65 to +150 °C

Lead Temperature (Soldering) 10
seconds

T

LEAD

260 °C

ESD Rating ESD 2 kV

ABSOLUTE MAXIMUM RATINGS

PACKAGE TOLERANCE

0.1% 0.2% 0.5% 1.0% 2.0% T/R Quantity

SOT-23-3L

(1)

SC4041ASK SC4041BSK SC4041CSK SC4041DSK SC4041ESK 3K

SO-8

(1)

SC4041AS SC4041BS SC4041CS SC4041DS SC4041ES 2.5K

TO-92

(1)(2)

SC4041AZ SC4041BZ SC4041CZ SC4041DZ SC4041EZ TR=3K, TA=2K

Notes:
(1) Add suffix ‘TR’ for Tape & Reel.
(2) Add suffix ‘TA’ for Tape Ammo.

ORDERING INFORMATION

© 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

PRECISION SHUNT VOLTAGE
REFERENCE

SC4041

PRELIMINARY - April 13, 1998

3

ELECTRICAL CHARACTERISTICS

TA = 25°C unless otherwise specifi ed.

SC4041A (0.1%) SC4041B (0.2%)

Parameter Symbol Condition MIN TYP MAX MIN TYP MAX UNITS

Reverse Breakdown Volt­age

V

ZIZ

= 100µA TA = 25°C 1.2238 1.2250 1.2262 1.2226 1.2250 1.2274 V

TA = -40 to +85°C 1.2158 1.2250 1.2342 1.2146 1.2250 1. 2354 V

Minimum Operating Cur­rent

I

Z(min)

30 60 30 60 µA

Reverse Breakdown Volt­age Temperature Coeffi­cient

I

Z

= 10mA

I

Z

= 1mA

I

Z

= 100µA

T

A

= -40 to +85°C ±100 ±100 ppm/°C

Ratio of Change in VZ to
Change in I

Z

I

Z(min)

< IZ < 1mA TA = 25°C 1.5 1.5 mV

T

A

= -40 to +85°C 2.0 2.0 mV

1mA <

IZ < 12mA TA = 25°C 6.0 6.0 mV

T

A

= -40 to +85°C 8.0 8.0 mV

Reverse Dynamic
Impedance

Z

RIZ

= 1mA, f = 120 Hz, IAC = 0.1 I

Z

0.25 1.5 0.25 1.5

Ω

Wideband Noise (RMS) e

NIZ

= 100µA

10Hz <

f < 10kHz

20 20 µV

Long Term Stability of Re­verse Breakdown Voltage

t = 1000 hours
T = 25°C ± 0.1°C
I

Z

= 100µA

120 120 ppm

T

V

Z

∆

∆

Z

Z

I

V

∆

∆

Z

V

∆

TA = 25°C unless otherwise specifi ed.

SC4041C (0.5%) SC4041D (1.0%)

Parameter Symbol Condition MIN TYP MAX MIN TYP MAX UNITS

Reverse Breakdown Volt­age

V

ZIZ

= 100µA TA = 25°C 1.219 1.225 1.231 1.213 1.225 1. 237 V

T

A

= -40 to +85°C 1.211 1.225 1.239 1. 201 1.225 1.249 V

Minimum Operating Cur­rent

I

Z(min)

30 60 30 60 µA

Reverse Breakdown Volt­age Temperature Coeffi­cient

I

Z

= 10mA

I

Z

= 1mA

I

Z

= 100µA

T

A

= -40 to +85°C ±100 ±150 ppm/°C

Ratio of Change in V

Z

to

Change in I

Z

I

Z(min)

< IZ < 1mA TA = 25°C 1.5 2.0 mV

TA = -40 to +85°C 2.0 2.5 mV

1mA <

IZ < 12mA TA = 25°C 6.0 8.0 mV

T

A

= -40 to +85°C 8.0 10.0 mV

Reverse Dynamic
Impedance

Z

RIZ

= 1mA, f = 120 Hz, IAC = 0.1 I

Z

0.25 1.5 0.25 2.0

Ω

Wideband Noise (RMS) e

NIZ

= 100µA

10Hz <

f < 10kHz

20 20 µV

Long Term Stability of Re­verse Breakdown Voltage

t = 1000 hours
T = 25°C ± 0.1°C
I

Z

= 100µA

120 120 ppm

T

V

Z

∆

∆

Z

Z

I

V

∆

∆

Z

V

∆

© 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

PRECISION SHUNT VOLTAGE
REFERENCE

SC4041

PRELIMINARY - April 13, 1998

4

ELECTRICAL CHARACTERISTICS

TA = 25°C unless otherwise specifi ed.

SC4041E (2.0%)

Parameter Symbol Condition MIN TYP MAX UNITS

Reverse Breakdown Voltage V

ZIZ

= 100µA TA = 25°C 1.200 1.225 1.250 V

T

A

= -40 to +85°C 1.189 1.225 1.261 V

Minimum Operating Current I

Z(min)

30 60 µA

Reverse Breakdown Voltage Temperature Coeff i cient I

Z

= 10mA

I

Z

= 1mA

I

Z

= 100µA

T

A

= -40 to +85°C ±150 ppm/°C

Ratio of Change in V

Z

to Change in I

Z

I

Z(min)

< IZ < 1mA TA = 25°C 2.0 mV

TA = -40 to +85°C 2. 5 mV

1mA <

IZ < 12mA TA = 25°C 8.0 mV

T

A

= -40 to +85°C 10.0 mV

Reverse Dynamic Im pedance Z

RIZ

= 1mA, f = 120 Hz, IAC = 0.1 I

Z

0.25 2.0

Ω

Wideband Noise (RMS) e

NIZ

= 100µA

10Hz <

f < 10kHz

20 µV

Long Term Stability of Reverse Breakdown Voltage t = 1000 hours

T = 25°C ± 0.1°C
I

Z

= 100µA

120 ppm

T

V

Z

∆

∆

Z

Z

I

V

∆

∆

Z

V

∆

© 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

PRECISION SHUNT VOLTAGE
REFERENCE

SC4041

PRELIMINARY - April 13, 1998

5

OUTLINE DRAWING SOT-23-3L

LAND PATTERN SOT-23-3L

Note 1 : Grid placement courtyard is 8 x 8 elements (4mm x 4mm) in accordance with the international grid
detailed in IEC Publication 97.

© 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

PRECISION SHUNT VOLTAGE
REFERENCE

SC4041

PRELIMINARY - April 13, 1998

6

OUTLINE DRAWING TO-92

OUTLINE DRAWING SO-8

LAND PATTERN SO-8

JEDEC

REF: MS-012AA