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REF35 数据表(PDF) 5 Page - Texas Instruments

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部件名 REF35
功能描述  REF35 Ultra Low-Power, High-Precision Voltage Reference
PDF  27 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

REF35 数据表(HTML) 5 Page - Texas Instruments

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7.5 Electrical Characteristics
At VIN = VREF + 0.5 V, VEN = VIN, CREF = 10 µF, CIN = 0.1 µF, IL = 0 mA, minimum and maximum specifications at TA = –40℃
to 125
℃, typical specifications TA = 25℃; unless otherwise noted
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
ACCURACY AND DRIFT
Output voltage accuracy TA = 25℃
–0.05
0.05
%
Output voltage
temperature coefficient
–40
℃ ≤ TA ≤ 85℃
TBD
ppm/
℃
–40
℃ ≤ TA ≤ 125℃
10
ppm/
℃
LINE AND LOAD REGULATION
ΔVREF/
ΔVIN
Line regulation
VREF < 2.5 V; VIN = VREF + VDO to VINMAX
4
160
ppm/V
VREF ≥ 2.5 V; VIN = VREF + VDO to VINMAX
4
80
ppm/V
ΔVREF/ΔIL Load regulation
IL = 0 mA to 10 mA,
VIN = VREF + VDO
Source
20
60
ppm/mA
IL = 0 mA to 5 mA,
VIN = VREF + VDO
Sink
40
150
ppm/mA
POWER SUPPLY
VIN
Input voltage (1)
VREF + VDO
6
V
IQ
Quiescent current
Active mode
TA = 25℃
0.68
1
µA
–40
℃ ≤ TA ≤ 85℃
1.3
–40
℃ ≤ TA ≤ 125℃
2.6
Shutdown mode
TA = 25℃
0.05
–40
℃ ≤ TA ≤ 125℃
1.2
VEN
Enable pin voltage
Active mode (EN = 1 or Float)
0.7 x VIN
V
Shutdown mode (EN = 0)
0.3 x VIN
IEN
Enable pin current
VEN = VIN
0.1
0.3
uA
VDO
Dropout voltage
IL = 5 mA
250
mV
IL = 10 mA
500
ISC
Short circuit current,
Sourcing
VREF = 0 V, TA = 25℃
30
35
mA
VREF = 0 V
20
Short circuit current,
Sinking
VREF = VIN V, TA = 25℃
18
20
mA
VREF = VIN V
14
TURNON TIME
tON
Turn-on time (2)
0.1% settling, CREF = 1 µF, VREF = 2.048 V
2
ms
NOISE
en
Output voltage noise
ƒ = 10 Hz to 1 kHz
32
ppmrms
enp-p
Low frequency noise
ƒ = 0.1 Hz to 10 Hz, VREF ≥ 2.5 V
8.5
ppmp-p
ƒ = 0.1 Hz to 10 Hz, VREF < 2.5 V
10
ppmp-p
HYSTERESIS AND LONG-TERM STABILITY
Long-term stability
0 to 1000h at 35°C
20
ppm
Output voltage
hysteresis
25°C, –40°C, 125°C, 25°C (cycle 1)
20
ppm
STABLE CAPACITANCE RANGE
Input capacitor range
0.1
µF
Output capacitor
range (3)
0.1
10
µF
(1)
For VREF = 1.024 V to 1.5 V, mimimum VIN = 1.7 V
(2)
Scales linearly with VREF.
(3)
ESR for the capacitor can range from 10 mΩ to 400 mΩ
www.ti.com
REF35
SNAS809 – DECEMBER 2021
Copyright © 2021 Texas Instruments Incorporated
Submit Document Feedback
5
Product Folder Links: REF35



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