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