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參數(shù)資料
| 型號(hào)： | L9929 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | SPI CONTROLLED H-BRIDGE |
| 中文描述： | 可控的SPI H橋 |
| 文件頁數(shù)： | 10/23頁 |
| 文件大?。?/td> | 629K |
| 代理商： | L9929 |
L9929
10/23
1.)
2.)
In case of undervoltage tristate and status-flag are reset automatically.
Whenever overcurrent or overtemperature is detected, the fault is stored (i.e. status-flag remains low).
The tristate conditions and the status-flag
3)
are reset via DI or EN.
L = Low
H = High
X = High or Low
Z = High impedance
(all output stage transistors are switched off in static state. For more inform. see next page )
Overcurrent:
I
OUT1,2
>10.6 A
Overtemperature:
T
j
>175°C
Undervoltage:
V
Vs-GND
<4.5V (at least down to 2.5V)
3.)
4.) If Mode SPI-Diagnosis is selected (see chapter "Diagnostic / SPI-Interface")
If Mode Status-Flag“ is selected (see chapter "Diagnostic / Status-Flag")
Description of the state Z“
The state Z“ has, depending on the previous operating condition different meaning.
1. dynamical
I. e. the inductive load is current carrying and is switched off according to Pos. 5, 6, 9, 10, 11, 12, 13, or
14 of the truth table
a.) All output stage transistors are switched off.
b.) The current flow is continued via the free wheeling diodes.
c.) Free wheeling is detected by a negative voltage-level at OUn.
d.) Switch on of the parallel-transistor of the current carrying diode.
f.) Free wheeling is finshed, if the voltage-level on OUn is positive again.
2. statical
g.) all output-stages switched off.
Figure 11.
Zo
CURRENT
CARRYNG
I
VS
-I
GND
V
S
-
V
S
-VD
S
-V
S
I
LOAD
V
OUn
FREE WHEELING
HIGH IMPEDANCE
D01AT478
Z
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