L9929 데이터 시트보기 (PDF) - STMicroelectronics
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L9929 Datasheet PDF : 23 Pages
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L9929
Table 5. Electrical Characteristcs (continued)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
tdt Transfer Delay (8)
(referred to master)
150
ns
tSCKH Serial clock high time (9)
(referred to master)
50
ns
tSCKL Access time (10)
(referred to master)
8.35
µs
Clock inactive before
chipselect becomes valid (11)
200
ns
Clock inactive after
chipselect becomes valid (12)
200
ns
trs Rise-, fall time
Load on SO 50pF
20
ns
TIMING
Diagnostic Threshold (Open Load Detection DMS > 3.1V, EN < 18V and/or DI > 2V)
VOUT1
VOUT2
Load is available
0.8
V
0.8
V
VOUT1
VOUT2
Load is missing
1
VS
V
0.8
V
IOUT2 Diagnostic Current
IOUT1
DMS > 3.1V, EN < 0.8V
EN < 18V and/or DI > 2V
700 1000 1350 µA
1000 1500 2000 µA
Tracking Diagnostic Current
IOUT1 / IOUT2
1.4
1.5
1.6
tD Delay Time
* After disabling the device, the
30
load has to be demagnetized
during tD ,to avoid erroneous OL
detection
100 ms
3 Truth Table
Table 7. Truth Table
Pos.
1. Forward
2. Reverse
3. Free-wheeling low
4. Free-wheeling high
5. Disable
6. Enable
7. IN1 disconnected
8. IN2 disconnected
9. DI disconnected
10. EN disconnected
11. Current limit. active
12. Undervoltage active1.)
13. Overtemperature 2.)
14. Overcurrent 2.)
DI
EN
IN1
IN2 OUT1 OUT2
SF 3)
SPI 4)
DIA_REG
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See
Diagnostics
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/ Encoding
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of Failures
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