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L9408FDIETR 数据表(PDF) 8 Page - STMicroelectronics

部件名 L9408FDIETR
功能描述  Automotive multifunction smart alternator regulator
PDF  14 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L9408FDIETR 数据表(HTML) 8 Page - STMicroelectronics

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Electrical specifications
L9408F
8/14
DocID029462 Rev 1
VOV
D+ drivers disable threshold
Voltage on pin A+ to have
D+ = OFF
18
-
22
V
Tj-sd
Thermal shut-down
DF = Off state
D+ = Off state
170
-
200
°C
Tj-sd-hys
Thermal shut-down hysteresis
DF, D+ = from off state (due to
thermal shutdown) to on
2
-
10
°C
Ron
Low side driver Rdson
Tj = 150 °C; I = 3 A
-
-
230
mΩ
Tj = 25 °C; I = 1 A
-
-
130
mΩ
VF
Freewheeling diode DF
IF = 5 A
-
-
2
V
IfSC(2)
Short circuit threshold DF
DF = 12 V; T = -40 to 25 °C
8.5
-
18
A
DF = 12 V; T = 25 to 125 °C
7
-
18
Vs1
Output short to ground
threshold DF
-
2.1
-
3.9
V
FSDF
Pre-excitation F.S.D.F
f = 348 Hz ±15%
10.62
12.5
14.38
%
tST
Soft start delay time
Activated at first running-on only
-
0
s
tSL
Soft attack time
From 0 to 100% field duty cycle
2.5
2.88
3.39
s
Bl
Soft attack blind zone
% of maximum D.C. immediate
variation of soft attack
0
-
10
%
trise
Output voltage rise time
Ifield = 3 A resistive
5
-
50
μs
tfall
Output voltage fall time
5
-
50
Iflk
Output field driver leakage
current
DF = 24 V
-
-
1
mA
VHS
High side driver saturation
voltage
Isource = 1 A
-
-
1.2
V
VLS
Low side driver saturation
voltage
Isink = 0.25 A
-
-
1.5
V
VLSB
Self bias without supply lamp
driver voltage
--
-
4
V
IHSC
High side current limitation
A+ = 17.5 V; D+ = GND
1.2
-
3
A
ILSC
Low side current limitation
A+ = D+ = 17.5 V
0.45
-
1.5
A
VthD+
Enable regulator voltage D+
-
0.8
1
1.15
V
IthD+
Enable regulator pull-down
current
-
0.4
-
3.5
mA
DISAB
Soft attack inhibition
frequency
-
265
313
360
Hz
EN1
Soft start delay time enable
frequency
-
88
104
120
Hz
EN1_hy
Soft start delay time enable
frequency hysteresis
-EN1-8 EN1-10 EN1-12
Hz
Table 4. Electrical characteristics (continued)
Symbol
Parameter
Test condition
Min.
Typ.
Max
Unit



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