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参数资料
| 型号： | LM285DRE4-2-5 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PDSO8 |
| 封装： | GREEN, PLASTIC, SOIC-8 |
| 文件页数： | 12/18页 |
| 文件大小： | 473K |
| 代理商： | LM285DRE4-2-5 |
LM2852.5, LM3852.5, LM385B2.5
MICROPOWER VOLTAGE REFERENCES
SLVS023J JANUARY 1989 REVISED MARCH 2005
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Reverse current, IR
30 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward current, IF
10 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Notes 1 and 2): D package
97
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LP package
140
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
149
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
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),θJA,and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) TA)/θJA. Operation at the absolute maximum TJ of 150°C can affect reliability.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
MIN
MAX
UNIT
IZ
Reference current
0.02
20
mA
TA
Operating free-air temperature range
LM285-2.5
40
85
°C
TA
Operating free-air temperature range
LM385-2.5, LM385B-2.5
0
70
°C
electrical characteristics at specified free-air temperature
PARAMETER
TEST
TA
LM285-2.5
LM385-2.5
LM385B-2.5
UNIT
PARAMETER
TEST
CONDITIONS
TA
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VZ
Reference
voltage
IZ = 20 A
to 20 mA
25
°C
2.462
2.5
2.538
2.425
2.5
2.575
2.462
2.5
2.538
V
αVZ
Average
temperature
coefficient of
reference
voltage§
IZ = 20 A
to 20 mA
Full range
±20
ppm/
°C
Change in
IZ = 20 A
25
°C
1
2
VZ
Change in
reference
IZ = 20 A
to 1 mA
Full range
1.5
2
mV
VZ
reference
voltage with
current
IZ = 1 mA
25
°C
10
20
mV
voltage with
current
IZ = 1 mA
to 20 mA
Full range
30
VZ/t
Long-term
change in
reference
voltage
IZ = 100 A
25
°C
±20
ppm/khr
IZ(min)
Minimum
reference
current
Full range
8
20
8
20
8
20
A
zz
Reference
IZ = 100 A
25
°C
0.2
0.6
0.4
1
0.4
1
zz
Reference
impedance
IZ = 100 A
Full range
1.5
Vn
Broadband
noise
voltage
IZ = 100 A,
f = 10 Hz
to 10 kHz
25
°C
120
V
Full range is 0°C to 70°C for the LM385-2.5 and LM385B-2.5, and 40°C to 85°C for the LM285-2.5.
§ The average temperature coefficient of reference voltage is defined as the total change in reference voltage divided by the specified temperature
range.
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