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參數(shù)資料
| 型號： | L6285S |
| 廠商： | 意法半導體 |
| 英文描述： | 3 CHANNELS MULTIPOWER SYSTEM |
| 中文描述： | 3通道移動電站系統(tǒng) |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 303K |
| 代理商： | L6285S |
SDIP42
N
o
42
PLCC44
N
o
1
Name
Functions
S1,2C
Full bridgecommon source output to separate between power GND
and logic GND.
Output of the channel C bridge.
High side DMOS channel A for currentchopping in the windings
connected pinsto OUT 1A, OUT 2A.
Power Supply Voltage.
High side DMOS channel A for currentchopping in the windings
connected topins OUT 3A, OUT 4A.
PowerGround and heatsink pins.
Low side DMOS outputsof channel A stepper motor driver.
1,41
2
2,44
3
OUT 1C, OUT 2C
COM 1,2A
3,39
4
4,42
5
V
p
COM 3,4A
6,37
7,9,
11,14
8
6,7,39,40
8,10
12,14
9
GND
OUT 1A, OUT 2A
OUT 3A, OUT 4A
S1,2A
Channel A sources of the DMOS OUT 1A, OUT 2A. A sensing resistor
has to be connected from this pin and ground, for current control of
phase 1,2 A.
These pins have to be connected to an external zener diode to
clamp the output voltage spikes of channel A/B.
Channel A sources of the DMOS OUT 3A, OUT 4A.A sensingresistor
has to be connected from this pin and ground, for current control of
phase 3,4 A.
A capacitor between this pin and V
p
stores the overvoltage for each
high side DMOS driver gate.
A capacitor between this pinand internal diodes allows the change
pump to transfer energy to the capacitor at the pin BOOT 1.
Logic Groundand Heatsink pins.
Charge pump oscillator output.
Serial data input.
Serial clock for serial data input.
Strobe to transfer the 16 bit shift register contentsto the latch
registers.
Not connected.
Logic Supply Voltage.
Open collector outputs for thermal informations to the
μ
P.
An RC network connected to this pin defines the oscillatorfrequency
for stepper drivers. When OSC/RES is <1V, a reset signal is
internally generated.
A voltage to this pin defines the output duty cycle of Channel C.
A capacitor connected to this pin defines the chopping frequency of
channel C.
This pin is low when the chopping low voltage (V2 low level) is
selected; it is in high impedance when the chopping high voltage (V2
high level) is selected. Only for CHC operation.
Low side DMOS outputsof channel B stepper motor driver.
10,33
11,35
CLAMP A, CLAMP B
12
13
S3,4A
14
15
BOOT 1
15
16
BOOT 3
16,27
18
19
20
21
17,29
18
19
20
21
GND
BOOT 2
SID
SCK
STB
5,17
22,39
23,24
25
22,24
23
25,26
27
NC
V
s
A0TH / A1TH
OSC/ RESET
26
28
28
30
V2
C
osc
29
31
V
low
30,32,
34,36
31
35
38
40
32,34
36,38
33
37
41
43
OUT4B, OUT3B
OUT2B ,OUT1B
S 3, 4B
S 1, 2B
COM 3, 4B
COM 1, 2B
Same as S 3, 4A, but for channel B.
Same as S 1, 2A, but for channel B.
Same as COM 3, 4A, but for channel B.
Same as COM 1, 2A, but for channel B.
PINDESCRIPTION
L6285
3/16
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