L6280 데이터 시트보기 (PDF) - STMicroelectronics
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L6280 Datasheet PDF : 26 Pages
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L6280
ELECTRICAL CHARACTERISTICS (continued)
Symbol
VFLSD
tCW
tWPW
tSU
tDH
tWC
Parameter
Internal Clamp Diode Forward
Volt. CH3
Chip Seletion to End of Write
Write Pulse Width
Data Set-up Time
Data Hold-up Time
Write Cycle Time
Test Condition
@ IDS = 1A (Fig. 5)
(Fig. 6)
(Fig. 6)
(Fig. 6)
(Fig. 6)
(Fig. 6)
Min. Typ. Max. Unit
1.1
V
700
ns
700
ns
700
ns
0
ns
2.7
ms
Notes:
1) When driving a unipolar stepper motor the Power Supply Voltage must be lower than 24V.
2) A lower Supply Voltage than the Power Fail threshold disables the Step Down Power Supply (see Fig.2)
3) The minimum output current equals the half of the peak-to-peak current ripple
4) tWD ≅ CWD x 1.5 /50 x 10 -6 (sec)
5) tD ≅ CD x 3.5 /50 x 10 -6 (sec)
6) tC≅ COSC x Rint. (sec); Rint. = 600Ω ± 30%
Figure 1: Drain Lekage Current Equivalent Test
Circuit . The Gate-to-Source Voltage
VGS is below the Switch-Off
Threshold.
Figure 3: Typical Normalized RDS(ON) vs.
Junction Temperature
5/26
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