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參數(shù)資料
| 型號(hào)： | L8219P |
| 廠(chǎng)商： | STMICROELECTRONICS |
| 元件分類(lèi)： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 2.5 A, PDSO36 |
| 封裝： | POWER, SO-36 |
| 文件頁(yè)數(shù)： | 7/13頁(yè) |
| 文件大?。?/td> | 98K |
| 代理商： | L8219P |
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L8219
PIN FUNCTION
SO28
EP
PowerSO36
Name
Description
1
10
OUT2B
Bridge-2
Ouput connection. The output stage is a ”H” bridge formed by four transistors and
four diodes connected to ground suitable for switching applications.
2
11
Rs2
Bridge-2
Power stage sink transistors emitter connection.Sensing resistor is connected from
this pin and ground.
3
12
GND2
Ground
4
13
OUT2A
same as OUT2B
5
17
COMPI
MP2
Bridge-2
An internal low pass filter RcCc is integrated.
6
18
Vs2
Bridge-2 Power supply voltage.
7, 21
19,36
GND
Ground
8
20
EN2
Bridge2
When the enable input is set high the bridge is immediately switched-off skipping the
delay time of the current control loop turning-off (I0=I1=H)
9
22
I02
Bridge-2
Logic input to set up the output current level, which is also determined by the
sensing resistor and reference voltage(see also Functional description and table 1).
10
23
I12
same as I02 (see table 1)
11
24
PH2
Bridge-2
This TTL-compatible logic inputs sets the direction of current flow through the load. A
high level causes current to flow from OUTPUT A (source) to OUTPUT B (sink). A
schmitt trigger on this input provides good noise immunity and a delay circuit
prevents output stage short circuits during switching.
12
25
Vref2
Bridge-2
A voltage applied to this pin sets the reference voltage of the comparators, this
determinig the output current (also depending on Rs and the the two inputs INPUT 0
and INPUT 1).
13
26
R2C2
Bridge-2
An external RC network connected to this pin sets the toff time of the higher power
transistors.The pulse generator is a monostable triggerd by the output of the
comparators (toff = 1.1 RTCT)
14
27
Vss
Supply voltage input for the logic circuitry.
15
28
R1C1
Bridge-1 same as R2C2.
16
29
Vref1
Bridge-1 same as Vref2
17
30
PH1
Bridge-1 same as PH2
18
31
I11
Bridge-1 same as I12
19
32
I01
Bridge-1 same as I02
20
35
EN1
Bridge-1 same as EN2
22
1
Vs1
Bridge-1 Power supply voltage.
23
2
COMPINP1
Bridge-1
An internal low pass filter RcCc is integrated. Another RC external network will
modify the blanking time (ss Functional Description)
24
3,4,5,14,15,
16,21,33,34
N.C.
Not connected
25
6
OUT1A
Bridge-1
Output connection. The output stage is a ”H” bridge formed by four transistors and
four diodes connected to ground suitable for switching applications
26
7
GND
Ground.
27
8
RS1
Bridge-1
Power stage sink transistors emitter connection.Sensing resistor is connected from
this pin and ground.
28
9
OUT1B
same as OUT1A
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