L6229DP 查看數據表（PDF） - STMicroelectronics
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L6229DP Datasheet PDF : 33 Pages
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L6229
Non-dissipative overcurrent detection and protection
The resistor REN should be chosen in the range from 2.2 K to 180 K. Recommended
values for REN and CEN are respectively 100 K and 5.6 nF that allow obtaining 200 s
disable time.
Figure 20. Overcurrent protection waveforms
IOUT
ISOVER
VEN=VDIAG
VDD
Vth(ON)
Vth(OFF)
VEN(LOW)
ON
OCD
OFF
ON
BRIDGE
tDELAY
OFF
tOCD(ON) tEN(FALL)
tOCD(OFF)
tD(OFF)EN
tDISABLE
tEN(RISE)
tD(ON)EN
D02IN1383
Figure 21. tDISABLE versus CEN and REN
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