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TPS25921ADR Fiches technique(PDF) 8 Page - Texas Instruments

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No de pièce TPS25921ADR
Description  Precise Current Limit and Over Voltage Protection
Download  38 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS25921ADR Fiches technique(HTML) 8 Page - Texas Instruments

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Current Limit (A)
0
0.25
0.5
0.75
1
1.25
1.5
1.75
0
5
10
15
20
25
D012
Temperature (qC)
-50
-25
0
25
50
75
100
125
150
0
0.4
0.8
1.2
1.6
2
2.4
D013
35.7 k:
45.3 k:
95.3 k:
150 k:
Temperature (qC)
-50
-25
0
25
50
75
100
125
150
0.25
0.255
0.26
0.265
0.27
0.275
D010
R(ILM) Resistor (k:)
20
40
60
80
100
120
140
160
0
0.5
1
1.5
2
2.5
D011
ILIMIT
I(FASTRIP)
Temperature (qC)
-50
-25
0
25
50
75
100
125
150
4.75
4.8
4.85
4.9
4.95
5
D008
Soft Start Capacitor (nF)
1
10
100
1
10
100
1k
D009
TA = -40qC
TA = 25qC
TA = 85qC
TA = 125qC
TPS25921A, TPS25921L
SLVSCE1C – AUGUST 2014 – REVISED NOVEMBER 2015
www.ti.com
Typical Characteristics (continued)
Conditions (unless otherwise noted) are –40°C
≤ TJ ≤ 125°C, V(IN)= 12 V, V(EN UV) = 2 V, V(OVP) = 0 V, R(ILIM) = 95.3 kΩ, C(OUT)
= 2.2
μF, CSS = OPEN, FLT = OPEN. Positive current into terminals. All voltages referenced to GND (unless otherwise
noted). For all oscilloscope waveforms TA = 25°C.
Figure 7. GAIN(SS) vs Temperature
Figure 8. Output Ramp Time vs C(SS)
C(SS) = Open
Figure 9. Output Ramp Time vs Temperature
Figure 10. Current Limit vs Current Limit Resistor
Figure 12. Current Limit vs Temperature Across R(ILIM)
Figure 11. Current Limit Accuracy vs Current Limit
8
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Copyright © 2014–2015, Texas Instruments Incorporated
Product Folder Links: TPS25921A TPS25921L


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