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Details, datasheet, quote on part number:LM236-2.5
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Datasheet text preview:
LM236-2.5, LM336-2.5, LM336B-2.5 2.5-V INTEGRATED REFERENCE CIRCUITS
SLVS063C NOVEMBER 1988 REVISED AUGUST 2000
D D D D D D D D
Low Temperature Coefficient Wide Operating Current . . . 400 µA to 10 mA 0.27- Dynamic Impedance ±1% Tolerance Available Specified Temperature Stability Easily Trimmed for Minimum Temperature Drift Fast Turnon Three-Lead Transistor Package
D PACKAGE (TOP VIEW)
NC NC NC ANODE
1 2 3 4
8 7 6 5
CATHODE NC NC ADJ
NC-No internal connection LP PACKAGE (TOP VIEW) ANODE CATHODE ADJ
description
The LM236-2.5, LM336-2.5, and LM336B-2.5 integrated circuits are precision 2.5-V shunt regulator diodes. These reference circuits operate as low-temperature-coefficient 2.5-V zeners with a 0.2- dynamic impedance. A third terminal provided on the circuit allows the reference voltage and temperature coefficient to be trimmed easily.
symbol
ANODE ADJ CATHODE
The series is useful as precision 2.5-V low-voltage references (VZ) 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 and LM336B-2.5 are characterized for operation from 0°C to 70°C.
AVAILABLE OPTIONS PACKAGED DEVICES TA SMALL OUTLINE (D) LM336D-2.5 LM336BD-2.5 LM236D-2.5 PLASTIC (LP) LM336LP-2.5 LM336BLP-2.5 LM236LP-2.5
0°C to 70°C to 70°C 25°C to 85°C
The D and LP packages also are available taped and reeled. Add the suffix R to the device type (e.g., LM336DR-2.5). Chip forms are tested at 25°C.
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.
Copyright © 2000, 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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1
LM236-2.5, LM336-2.5, LM336B-2.5 2.5-V INTEGRATED REFERENCE CIRCUITS
SLVS063C NOVEMBER 1988 REVISED AUGUST 2000
schematic diagram
CATHODE Q14 Q11
Q8 Q7 20 pF 10 k Q2 Q1 Q4 30 pF
24 k
24 k
6.6 k
Q10 500 Q9 Q3 Q6 6.6 k Q12 Q5 720 Q13 ANODE 30 k ADJ
All component values are nominal
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Reverse current, IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Forward current, IF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA Package thermal impedance, 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, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 TJ(max), JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) TA)/JA. Operating at the absolute maximum TJ of 150°C can impact reliability. 2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
MIN Operating free air temperature TA free-air temperature, LM236-2.5 LM336-2.5, LM336B-2.5 25 0 MAX 85 70 UNIT °C
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
LM236-2.5, LM336-2.5, LM336B-2.5 2.5-V INTEGRATED REFERENCE CIRCUITS
SLVS063C NOVEMBER 1988 REVISED AUGUST 2000
electrical characteristics at specified free-air temperature (unless otherwise noted)
PARAMETER VZ VZ(T) VZ(I) VZ(t) zz Reference voltage voltage Change in reference voltage with temperature Change in reference voltage with current Long-term change in reference voltage Reference impedance TEST CONDITIONS CONDITIONS IZ = 1 mA mA LM236, LM336 LM336B TA 25°C LM236-2.5 MIN 2.44 TYP 2.49 MAX 2.54 LM336-2.5 MIN 2.39 2.44 3.5 2.6 3 20 0.2 0.4 0.6 1 9 6 10 TYP 2.49 2.49 1.8 2.6 3 20 0.2 0.4 1 1.4 MAX 2.59 2.54 6 10 12 UNIT V
VZ adjusted to 2.490 V, IZ = 1 mA IZ = 400 µA to 10 mA 400 µA to 10 mA IZ = 1 mA IZ = 1 mA, mA f = 1 kHz kHz
Full range 25°C Full range 25°C 25°C Full range
mV
mV ppm/khr W
Full range is 25°C to 85°C for the LM236-2.5 and 0°C to 70°C for the LM336-2.5 and LM336B-2.5.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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