參數(shù)資料
型號: L6219DSA
廠商: STMICROELECTRONICS
元件分類: 運(yùn)動控制電子
英文描述: STEPPER MOTOR CONTROLLER, 1 A, PDSO24
封裝: SO-24
文件頁數(shù): 14/15頁
文件大?。?/td> 187K
代理商: L6219DSA
Block diagram
L6219DSA
Table 5.
Electrical characteristcs
(Tj = 40 °C to 125 °C, VS = 46 V, VSS = 4.75 V to 5.25 V, VREF = 5 V, unless
otherwise specified) See Figure 5
Parameter
Description
Test condition
Min.
Typ.
Max.
Unit
Output drivers (OUTA or OUTB)
VS
Motor supply range
10
-
46
V
ICEX
Output leakage current
VS = 52 V VOUT = 50 V
VS = 52 V VOUT = 1 V
-200
-
200
μA
VCE(sat)
Output saturation voltage
Sink driver, IOUT= +500 mA
Sink driver, IOUT = +750 mA
Source driver, IOUT = -500 mA
Source driver, IOUT = -750 mA
-
0.75
1.15
1.6
1.8
V
VF
Clamp diode forward
voltage
High stage IF =750 mA
Low stage IF =750 mA
-
1.7
1.6
V
IS(on)
Driver supply current
Both bridges ON, no load
-
17
mA
IS(off)
Driver supply current
Both bridges OFF
-
12
mA
Control logic
VIN(H)
Input voltage
All inputs
2.4
-
V
VIN(L)
Input voltage
All inputs
-
0.8
V
IIN(H)
Input current
VIN = 2.4 V
-
<1
20
μA
IIN(L)
Input current
VIN = 0.84 V
-
-3
-200
μA
VREF
Reference voltage
Operating (1)
1.
To reduce the switching losses the base bias of the bridge's low side NPN transistor is proportional to the
DAC output, then the output current driving capability is also proportional to the DAC output voltage, having
as reference 750 mA with VREF = 5 V and DAC =100%. For example using VREF = 2 V and DAC = 67% the
output maximum current driving capability will become 750 mA*(2V*0.67)/(5V*1) = 200 mA.
1.5
-
7.5
V
ISS(ON)
Total logic supply current
Io = I1 = 0.8 V, no load
-
76
mA
ISS(OFF)
Total logic supply current
Io = I1 = 2.4 V, no load
-
15
mA
Comparators
VREF/ Vsense
Current limit threshold (at
trip point)
Io = I1 = 0.8 V
9.5
10
10.5
-
Io = 2.4 V, I1 = 0.8 V
13.5
15
16.5
-
Io = 0.8 V, I1 = 2.4 V
25.5
30
34.5
-
toff
Cutoff time
Rt = 56 KΩ Ct = 820 pF
-
50
-
μs
td
Turn off delay
-1-
μs
Protection
TJ
Thermal shutdown
temperature
-170
-
°C
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