Texas Instruments LM336LP-2-5, LM336D-2-5, LM236DR-2-5, LM236D-2-5, LM236LP-2-5 Datasheet

LM236-2.5, LM336-2.5

2.5-V INTEGRATED REFERENCE CIRCUITS

SLVS063B – NOVEMBER 1988 – REVISED JULY 1999

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

Low Temperature Coefficient

D

Wide Operating Current . . . 400 µA

to 10 mA

D

0.27-Ω Dynamic Impedance

D

±1% Tolerance Available

D

Specified Temperature Stability

D

Easily Trimmed for Minimum Temperature

Drift

D

Fast Turnon

D

Three-Lead Transistor Package

description

The LM236-2.5 and LM336-2.5 integrated

circuits are precision 2.5-V shunt regulator

diodes. These monolithic references operate as

low-temperature-coefficient 2.5-V zeners with a

0.2-Ω dynamic impedance. A third terminal

provided on the circuit allows the reference

voltage and temperature coefficient to be easily

trimmed.

The series is useful as precision 2.5-V low-voltage

references (V

Z

) for digital voltmeters, power

supplies, or operational-amplifier circuitry . The 2.5-V voltage reference makes it convenient to obtain a stable

reference from 5-V logic supplies. Devices in this series operate as shunt regulators, and can be used as either

positive or negative voltage references.

The LM236-2.5 is characterized for operation from –25°C to 85°C. The LM336-2.5 is characterized for operation

from 0°C to 70°C.

AVAILABLE OPTIONS

PACKAGED DEVICES

T

A

SMALL OUTLINE PLASTIC

CHIP

FORM

(D) (LP)

(Y)

0°C to 70°C LM336D-2.5 LM336LP-2.5 LM336Y-2.5

–25°C to 85°C LM236D-2.5 LM236LP-2.5 —

The D package is available taped and reeled. Add the suffix R to the device type (i.e.,

LM336DR-2.5). Chip forms are tested at 25°C.

Copyright  1999, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

1

2

3

4

8

7

6

5

NC

NC

NC

ANODE

CATHODE

NC

NC

ADJ

D PACKAGE

(TOP VIEW)

LP PACKAGE

(TOP VIEW)

ANODE

CATHODE

ADJ

CATHODEANODE

ADJ

NC-No internal connection

symbol

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

LM236-2.5, LM336-2.5

2.5-V INTEGRATED REFERENCE CIRCUITS

SLVS063B – NOVEMBER 1988 – REVISED JULY 1999

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

schematic diagram

CATHODE

Q11

6.6 kΩ

24

kΩ

24

kΩ

Q14

Q8

Q7

Q2

20 pF

10 kΩ

30 pF

Q10

Q3

Q1

Q5

Q4

Q6

Q9

Q12

Q13

500 Ω

30 kΩ

6.6 kΩ

720 Ω

ADJ

ANODE

All component values are nominal

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

Reverse current, I

R

20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Forward current, I

F

10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance, θ

JA

(see Notes 1 and 2): D package 97°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . .

LP package 156°C/W. . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or LP package 260°C. . . . . . . . . . . . . . .

Storage temperature range, T

stg

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. Maximum power dissipation is a function of T

J

(max),

θ

JA

, and T

A

. The maximum allowable power dissipation at any allowable

ambient temperature is P

D

= (T

J

(max) – T

A

)/

θ

JA

. Operating at the absolute maximum T

J

of 150°C can impact reliability.

2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace

length of zero.

recommended operating conditions

MIN MAX UNIT

p

p

LM236-2.5 –25 85

°

Operating

free

-

air

temperat

u

re

,

T

A

LM336-2.5 0 70

°C