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L99H92 データシート(PDF) 39 Page - STMicroelectronics

部品番号 L99H92
部品情報  Half-bridge pre-driver for automotive applications
PDF  77 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99H92 データシート(HTML) 39 Page - STMicroelectronics

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5.12
Watchdog
Table 34. Watchdog
Item
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
5.12.1
tLOW
Long open window
Tested by scan
52
-
87
ms
5.12.2
tCW
Closed window
Tested by scan
11
-
20
ms
5.12.3
tWDP
Watchdog period
Tested by scan
32
-
54
ms
Figure 19. Watchdog early, late, and safe window
GADG120920221035SA
5.13
SPI electrical characteristics
The voltages are referred to ground and currents are assumed positive, when the current flows into the pin. 6 V ≤
VS ≤ 18 V; TJ = -40 °C to 150 °C, unless otherwise specified.
Table 35. Inputs: CSN, CLK, PWM, DIR, EN and SDI
Item
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
5.13.1
VIL
Low-level input
voltage
1.0
V
5.13.2
VIH
High-level input
voltage
2.3
V
5.13.4
ICSN_in
Pull-up resistor CSN
VCSN= 0V
13
29
46
kΩ
5.13.5
ICLK_in
Pull-down current at
input
CLK
VCLK = 1.5 V
5
30
60
μA
5.13.6
ISDI_in
Pull-down current at
input DI
VDI = 1.5 V
5
30
60
μA
5.13.7
IDIR_in
Pull-down current at
input DIR
VDIR = 1.5 V
5
30
60
μA
5.13.8
IPWM_in
Pull-down current at
input
PWM
VPWM = 1.5 V
5
30
60
μA
5.13.10
Cin(1)
Input capacitance at
input
0 V < VDD < 5.3
V
10
15
pF
L99H92
Watchdog
DS14069 - Rev 4
page 39/77



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