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參數(shù)資料
| 型號： | PBL3776/1NS |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 0.5 A, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 120K |
| 代理商： | PBL3776/1NS |
PBL 3776/1
4
Pin Description
DIP
Symbol
Description
1
PWR GND
1
"Power Ground" from output channel 1. Connected to the ground path (see application examples).
2
T1BL
Output, channel 1, B side lower transistor. The pin will sink current when phase is high.
3
T1BU
Output, channel 1, B side upper transistor. The pin will source current when phase is low.
4
T1AL
Output, channel 1, A side lower transistor. The pin will sink current when phase is low.
5
T1AU
Output, channel 1, A side upper transistor. The pin will source current when phase is high.
6
VBB1
Supply voltage for driving channel 1 outputs.
7
SGND
1
Sense ground channel 1. Logic ground reference and sense ground for the current control feedback-
loop.
8VR
1
Reference voltage, channel 1. Controls the comparator threshold voltage and hence the output
current.
9C
1
Comparator input channel 1. This input senses the instantaneous voltage across the sensing resistor,
filtered by the internal digital filter or an optional external RC network.
10
Phase
1
Controls the direction of channel 1 outputs T1AL, T1AU, T1BL and T1BU.
11
Dis
1
Disable input for channel 1. When HIGH, all four output transistors are turned off, which results in a
rapidly decreasing output current to zero.
12
RC
Clock oscillator RC pin. Connect a 12 kohm resistor to V
CC and a 4 700 pF capacitor to ground to
obtain the nominal switching frequency of 23.0 kHz and a digital filter blanking time of 1.0
s.
13
Vcc
Logic voltage supply, nominally +5 V.
14
Dis
2
Disable input for channel 2. When HIGH, all four output transistors are turned off, which results in a
rapidly decreasing output current to zero.
15
Phase
2
Controls the direction of channel 2 outputs T2AL, T2AU, T2BL and T2BU.
16
C
2
Comparator input channel 2. This input senses the instantaneous voltage across the sensing resistor,
filtered by the internal digital filter or an optional external RC network.
17
VR
2
Reference voltage, channel 2. Controls the comparator threshold voltage and hence the output
current.
18
SGND
2
Sense ground channel 1. Logic ground reference and sense ground for the current control feedback-
loop.
19
VBB2
Supply voltage for driving channel 2 outputs.
20
T2AU
Output, channel 2, A side upper transistor. The pin will source current when phase is high.
21
T2AL
Output, channel 2, A side lower transistor. The pin will sink current when phase is low.
22
T2BU
Output, channel 2, B side upper transistor. The pin will source current when phase is low.
23
T2BL
Output, channel 2, B side lower transistor. The pin will sink current when phase is high.
24
PWR GND
2
"Power Ground" from output channel 2. Connected to the ground path (see application examples).
Figure 4. Pin configuration.
PWR GND
1
T1BL
T1BU
T1AL
T1AU
VBB1
SGND
1
VR
1
C
1
Phase
1
Dis
1
PWR GND
2
T2BL
RC
Vcc
Dis
2
T2AL
T2AU
VBB 2
SGND
2
VR
2
C
2
Phase
2
1
2
3
4
5
6
7
8
9
10
11
24
23
12
13
14
21
20
19
18
17
16
15
22
T2BU
PBL
3776/1
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