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L9911F Datasheet(PDF) 10 Page - STMicroelectronics

Part # L9911F
Description  Car alternator multifunction smart voltage regulator
PDF  20 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9911F Datasheet(HTML) 10 Page - STMicroelectronics

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Electrical specification
L9911
10/20
DocID10990 Rev 13
t-TM
Output voltage rise time
R = 1 k
 (see Figure 6)
0.5
-
50
μs
t-TD
Output voltage fall time
0.5
-
50
1. Guaranteed by design.
Table 5. Electrical characteristics (continued)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
Table 6. Load response control parameters
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
tST_1
Soft start delay time (see
Figure 12) 2 steps available,
selectable by mask option (see
Table 7).
Activated always at engine start
-0--
s
tST_2
1.73
2
2.35
s
tSL_1
Soft attack time / soft start time
(see Figure 12). 2 steps
available, selectable by mask
option (see Table 7).
From 0 to 100 % field duty cycle
2.13
2.5
2.87
s
tSL_2
7.65
9
10.35
EN-RES
(constant)
Reset frequency range to
enable regulation; Frequency
judged after 4 periods (see
Figure 11)
-40
50
60
Hz
EN-1
Soft start enable (EN) and LRC
disable (DISAB) frequency
ranges.
4 configurations available,
selectable by mask option
(possible combinations in
Table 8). Always activated at
engine start. Frequencies
judged after 4 periods (see
Figure 11)
Tj = 25 °C
Tj = -40 to150 °C
108
102
120
120
132
138
Hz
Hz
EN-2
Tj = 25 °C
Tj = -40 to150 °C
131
124
145
145
159
166
Hz
Hz
EN-3
Tj = 25 °C
Tj = -40 to150 °C
144
136
160
160
176
184
Hz
Hz
EN-4
Tj = 25 °C
Tj = -40 to150 °C
174
165
193
193
212
221
Hz
Hz
DISAB-1
Tj = 25 °C
Tj = -40 to150 °C
270
255
300
300
330
345
Hz
Hz
DISAB-2
Tj = 25 °C
Tj = -40 to150 °C
315
298
350
350
385
402
Hz
Hz
DISAB-3
Tj = 25 °C
Tj = -40 to150 °C
367
347
408
408
449
469
Hz
Hz
DISAB-4
Tj = 25 °C
Tj = -40 to150 °C
420
397
466
466
512
535
Hz
Hz
Table 7. Load response control timing options
-
t_SL = 2.5 s
t_SL = 9 s
t_ST = 0 s
LRC-A
LRC-D
t_ST = 0.5 s
LRC-C
-
t_ST = 2 s
LRC-E
LRC-B



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