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LM317H/NOPB bảng dữ liệu(PDF) 7 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  Wide Temperature Three-Pin Adjustable Regulator
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LM117, LM317-N
www.ti.com
SNVS774P – MAY 2004 – REVISED OCTOBER 2015
7.7 LM317-N Electrical Characteristics
(1)
Some specifications apply over full Operating Temperature Range as noted. Unless otherwise specified, TJ = 25°C, VIN
VOUT = 5 V, and IOUT = 10 mA.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TJ = 25°C
1.25
V
3 V
≤ (VIN − VOUT) ≤ 40 V,
Reference voltage
10 mA
≤ IOUT ≤ IMAX
(1) (over Full Operating Temperature
1.2
1.25
1.3
V
Range)
TJ = 25°C
0.01
0.04
Line regulation
3V
≤ (VIN − VOUT) ≤ 40 V
(2)
%/V
(over full operating
0.02
0.07
temperature range)
TJ = 25°C
0.1%
0.5%
Load regulation
10 mA
≤ IOUT ≤ IMAX
(1) (2)
(over full operating
0.3%
1.5%
temperature range)
Thermal regulation
20-ms pulse
0.04
0.07
%/W
Adjustment pin current
(over full operating temperature range)
50
100
μA
10 mA
≤ IOUT ≤ IMAX
(1)
(over full operating
Adjustment pin current change
0.2
5
μA
3V
≤ (VIN − VOUT) ≤ 40V
temperature range)
(over full operating
Temperature stability
TMIN ≤ TJ ≤ TMAX
1%
temperature range)
(over full operating
Minimum load current
(VIN − VOUT) = 40 V
3.5
10
mA
temperature range)
TO-3, TO-263 Packages
(over full operating
1.5
2.2
3.4
temperature range)
SOT-223, TO-220
Packages (over full
(VIN − VOUT) ≤ 15 V
1.5
2.2
3.4
A
operating temperature
range)
Current limit
TO, TO-252 Package (over
full operating temperature
0.5
0.8
1.8
range)
TO-3, TO-263 packages
0.15
0.4
(VIN − VOUT) = 40 V
SOT-223, TO-220 packages
0.15
0.4
A
TO, TO-252 package
0.075
0.2
RMS output noise, % of VOUT
10 Hz
≤ f ≤ 10 kHz
0.003%
VOUT = 10 V, f = 120 Hz, CADJ = 0 μF (over full operating
65
dB
temperature range)
Ripple rejection ratio
VOUT = 10V, f = 120 Hz, CADJ = 10 μF (over full operating
66
80
dB
temperature range)
Long-term stability
TJ = 125°C, 1000 hrs
0.3%
1%
(1)
IMAX = 1.5 A for the NDS (TO-3), NDE (TO-220), and KTT (TO-263) packages. IMAX = 1.0 A for the DCY (SOT-223) package.
IMAX = 0.5 A for the NDT (TO) and NDP (TO-252) packages. Device power dissipation (PD) is limited by ambient temperature (TA),
device maximum junction temperature (TJ), and package thermal resistance (θJA). The maximum allowable power dissipation at any
temperature is : PD(MAX) = ((TJ(MAX) – TA) / θJA). All Min. and Max. limits are ensured to TI's Average Outgoing Quality Level (AOQL).
(2)
Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specifications for thermal regulation.
Copyright © 2004–2015, Texas Instruments Incorporated
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