參數(shù)資料
型號(hào): L6280
廠商: STMICROELECTRONICS
元件分類: 運(yùn)動(dòng)控制電子
英文描述: STEPPER MOTOR CONTROLLER, 4.4 A, PQCC44
封裝: PLASTIC, LCC-44
文件頁(yè)數(shù): 22/26頁(yè)
文件大小: 8983K
代理商: L6280
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. = 600 ± 30%
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VFLSD
Internal Clamp Diode Forward
Volt. CH3
@ IDS = 1A (Fig. 5)
1.1
V
tCW
Chip Seletion to End of Write
(Fig. 6)
700
ns
tWPW
Write Pulse Width
(Fig. 6)
700
ns
tSU
Data Set-up Time
(Fig. 6)
700
ns
tDH
Data Hold-up Time
(Fig. 6)
0
ns
tWC
Write Cycle Time
(Fig. 6)
2.7
ms
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
L6280
5/26
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