LM385Z-2.5RA datasheet, PDF - EEWORLD Datasheet

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LM385Z-2.5RA: Description1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PBCY3, PLASTIC, TO-226AA, 3 PIN; CategoryPower/power management The power supply circuit; File Size2MB，45 Pages; ManufacturerRochester Electronics; Websitehttps://www.rocelec.com/

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LM385Z-2.5RA Overview

1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PBCY3, PLASTIC, TO-226AA, 3 PIN

LM385Z-2.5RA Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Rochester Electronics
Parts packaging code	TO-92
package instruction	,
Contacts	3
Reach Compliance Code	unknown
Analog Integrated Circuits - Other Types	TWO TERMINAL VOLTAGE REFERENCE
JESD-30 code	O-PBCY-T3
JESD-609 code	e0
Humidity sensitivity level	NOT SPECIFIED
Number of functions	1
Output times	1
Number of terminals	3
Maximum operating temperature	70 °C
Minimum operating temperature
Maximum output voltage	2.6 V
Minimum output voltage	2.4 V
Nominal output voltage	2.5 V
Package body material	PLASTIC/EPOXY
Package shape	ROUND
Package form	CYLINDRICAL
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
surface mount	NO
technology	BIPOLAR
Maximum voltage temperature coefficient	888 ppm/°C
Temperature level	COMMERCIAL
Terminal surface	TIN LEAD
Terminal form	THROUGH-HOLE
Terminal location	BOTTOM
Maximum time at peak reflow temperature	NOT SPECIFIED
Fine-tuning/adjustable output	NO

LM385Z-2.5RA Preview

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LM285

Micropower Voltage

Reference Diodes

The LM285/LM385 series are micropower two–terminal bandgap voltage

regulator diodes. Designed to operate over a wide current range of 10

µA

20 mA, these devices feature exceptionally low dynamic impedance, low

noise and stable operation over time and temperature. Tight voltage

tolerances are achieved by on–chip trimming. The large dynamic operating

range enables these devices to be used in applications with widely varying

supplies with excellent regulation. Extremely low operating current make

these devices ideal for micropower circuitry like portable instrumentation,

regulators and other analog circuitry where extended battery life is required.

The LM285/LM385 series are packaged in a low cost TO–226AA plastic

case and are available in two voltage versions of 1.235 and 2.500 V as

denoted by the device suffix (see Ordering Information table). The LM285 is

specified over a –40°C to +85°C temperature range while the LM385 is rated

from 0°C to +70°C.

The LM385 is also available in a surface mount plastic package in

voltages of 1.235 and 2.500 V.

•

Operating Current from 10

µA

to 20 mA

LM385, B

MICROPOWER VOLTAGE

REFERENCE DIODES

SEMICONDUCTOR

TECHNICAL DATA

Z SUFFIX

PLASTIC PACKAGE

CASE 29

(Bottom View)

N.C.

Cathode

Anode

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

N.C. 1

N.C. 2

N.C. 3

Anode 4

•

1.0%, 1.5%, 2.0% and 3.0% Initial Tolerance Grades

Low Temperature Coefficient

1.0

Ω

Dynamic Impedance

Surface Mount Package Available

8 Cathode

N.C.

6 N.C.

5 N.C.

Standard Application

1.5 V

Battery

–

3.3 k

1.235 V

LM385–1.2

Representative Schematic Diagram

Cathode

360 k

Open

for 1.235 V

10 k

ORDERING INFORMATION

Reverse

Break–

Operating

Temperature down

Voltage Tolerance

Range

TA = – 40° to

+85°C

1.235 V

2.500 V

1.235 V

2.500 V

1.0%

1.5%

1.0%

2.0%

1.5%

3.0%

600 k

Device

8.45 k

LM285D–1.2

LM285Z–1.2

LM285D–2.5

LM285Z–2.5

600 k

425 k

LM385BD–1.2

LM385BZ–1.2

LM385D–1.2

LM385Z–1.2

74.3 k

Open

for 2.5 V

600 k

500

Ω

100 k

LM385BD–2.5

LM385BZ–2.5

LM385D–2.5

LM385Z–2.5

TA = 0° to

+70°C

Anode

5–4

MOTOROLA ANALOG IC DEVICE DATA

LM285 LM385, B

MAXIMUM RATINGS

(TA = 25°C, unless otherwise noted)

Rating

Reverse Current

Forward Current

Operating Ambient Temperature Range

LM285

LM385

Operating Junction Temperature

Storage Temperature Range

Symbol

– 40 to + 85

0 to +70

Tstg

+ 150

– 65 to + 150

°C

Value

Unit

°C

ELECTRICAL CHARACTERISTICS

(TA = 25°C, unless otherwise noted)

LM285–1.2

Characteristic

Reverse Breakdown Voltage (IRmin

LM285–1.2/LM385B–1.2

TA = Tlow to Thigh (Note 1)

LM385–1.2

TA = Tlow to Thigh (Note 1)

Minimum Operating Current

TA = 25°C

TA = Tlow to Thigh (Note 1)

Reverse Breakdown Voltage Change with Current

IRmin

1.0 mA, TA = +25°C

TA = Tlow to Thigh (Note 1)

1.0 mA

20 mA, TA = +25°C

TA = Tlow to Thigh (Note 1)

LM385–1.2/LM385B–1.2

Max

1.247

1.270

–

1.0

1.5

–

Min

1.223

1.210

1.205

1.192

–

Typ

1.235

–

1.235

–

8.0

–

0.6

Max

1.247

1.260

1.273

µA

–

∆V

(BR)R

–

∆V

(BR)/∆T

–

0.6

1.0

1.5

–

ppm/°C

µV

ppm/

kHR

8.0

–

Unit

1.223

1.200

–

IRmin

1.235

–

Symbol

V(BR)R

Min

Typ

20 mA)

p p

Reverse Dynamic Impedance

IR = 100

µA,

TA = +25°C

Average Temperature Coefficient

µA

20 mA, TA = Tlow to Thigh (Note 1)

p p

Wideband Noise (RMS)

IR = 100

µA,

10 Hz

p p

10 kHz

Long Term Stability

IR = 100

µA,

TA = +25°C

0.1°C

MOTOROLA ANALOG IC DEVICE DATA

5–5

LM285 LM385, B

ELECTRICAL CHARACTERISTICS

(TA = 25°C, unless otherwise noted)

LM285–2.5

Characteristic

Reverse Breakdown Voltage (IRmin

LM285–2.5/LM385B–2.5

TA = Tlow to Thigh (Note 1)

LM385–2.5

TA = Tlow to Thigh (Note 1)

Minimum Operating Current

TA = 25°C

TA = Tlow to Thigh (Note 1)

Reverse Breakdown Voltage Change with Current

IRmin

1.0 mA, TA = +25°C

TA = Tlow to Thigh (Note 1)

1.0 mA

20 mA, TA = +25°C

TA = Tlow to Thigh (Note 1)

LM385–2.5/LM385B–2.5

Max

2.538

2.585

–

1.0

1.5

–

Min

2.462

2.436

2.425

2.400

–

Typ

2.5

–

2.5

–

0.6

120

Max

2.538

2.564

2.575

2.600

µA

–

∆V

(BR)R

–

∆V

(BR)/∆T

–

0.6

120

2.0

2.5

–

ppm/°C

µV

ppm/

kHR

–

Unit

2.462

2.415

–

IRmin

2.5

–

Symbol

V(BR)R

Min

Typ

20 mA)

p p

Reverse Dynamic Impedance

IR = 100

µA,

TA = +25°C

Average Temperature Coefficient

µA

20 mA, TA = Tlow to Thigh (Note 1)

Wideband Noise (RMS)

IR = 100

µA,

10 Hz

p p

10 kHz

Long Term Stability

IR = 100

µA,

TA = +25°C

0.1°C

NOTES:

1. Tlow = – 40°C for LM285–1.2, LM285–2.5

= 0°C for LM385–1.2, LM385B–1.2, LM385–2.5, LM385B–2.5

Thigh = +85°C for LM285–1.2, LM285–2.5

Thigh

= +70°C for LM385–1.2, LM385B–1.2, LM385–2.5, LM385B–2.5

5–6

MOTOROLA ANALOG IC DEVICE DATA

LM285 LM385, B

TYPICAL PERFORMANCE CURVES FOR LM285–1.2/385–1.2/385B–1.2

Figure 1. Reverse Characteristics

100

IR, REVERSE CURRENT (

∆

V(BR)R, REVERSE VOLTAGE CHANGE (mV)

Figure 2. Reverse Characteristics

8.0

6.0

+ 25°C

4.0

– 40°C

2.0

–2.0

0.01

0.1

1.0

IR, REVERSE CURRENT (mA)

100

TA = + 85°C

1.0

TA = + 85°C

+ 25°C

0.1

0.2

– 40°C

1.2

1.4

0.4

0.6

0.8

1.0

V(BR), REVERSE VOLTAGE (V)

Figure 3. Forward Characteristics

1.250

V(BR)R, REVERSE VOLTAGE (V)

VF, FORWARD VOLTAGE (V)

1.2

1.0

0.8

0.6

0.4

0.2

0.01

0.1

1.0

IF , FORWARD CURRENT (mA)

100

+ 25°C

+ 85°C

TA = – 40°C

Figure 4. Temperature Drift

1.240

IR = 100

µA

1.230

1.220

1.210

–50

–25

TA , AMBIENT TEMPERATURE (°C)

100

125

Figure 5. Noise Voltage

875

OUTPUT (V)

750

1.50

1.25

1.00

0.75

0.50

0.25

375

INPUT (V)

250

125

100

1.0 K

f, FREQUENCY (Hz)

10 K

100 k

5.0

0.1

Figure 6. Response Time

Input

√

Hz)

100 k

Output

625

500

e n , NOISE (nV/

DUT

0.2

0.3

0.6 0.7

t, TIME (ms)

0.8

0.9

1.0

1.1

MOTOROLA ANALOG IC DEVICE DATA

5–7

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LM385Z-2.5RA Related Products

	LM385Z-2.5RA	LM385BZ-1.2RP
Description	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PBCY3, PLASTIC, TO-226AA, 3 PIN	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235V, PBCY3, PLASTIC, TO-226AA, 3 PIN
Is it lead-free?	Contains lead	Contains lead
Is it Rohs certified?	incompatible	incompatible
Maker	Rochester Electronics	Rochester Electronics
Parts packaging code	TO-92	TO-92
Contacts	3	3
Reach Compliance Code	unknown	unknown
Analog Integrated Circuits - Other Types	TWO TERMINAL VOLTAGE REFERENCE	TWO TERMINAL VOLTAGE REFERENCE
JESD-30 code	O-PBCY-T3	O-PBCY-T3
JESD-609 code	e0	e0
Number of functions	1	1
Output times	1	1
Number of terminals	3	3
Maximum operating temperature	70 °C	70 °C
Maximum output voltage	2.6 V	1.26 V
Minimum output voltage	2.4 V	1.21 V
Nominal output voltage	2.5 V	1.235 V
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
Package shape	ROUND	ROUND
Package form	CYLINDRICAL	CYLINDRICAL
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED
surface mount	NO	NO
technology	BIPOLAR	BIPOLAR
Maximum voltage temperature coefficient	888 ppm/°C	888 ppm/°C
Temperature level	COMMERCIAL	COMMERCIAL
Terminal surface	TIN LEAD	TIN LEAD
Terminal form	THROUGH-HOLE	THROUGH-HOLE
Terminal location	BOTTOM	BOTTOM
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED
Fine-tuning/adjustable output	NO	NO

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