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參數(shù)資料
| 型號： | PW-85075P6-920 |
| 英文描述： | Industrial Control IC |
| 中文描述： | 工業(yè)控制IC |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 196K |
| 代理商： | PW-85075P6-920 |
6
June 13, 2000 Data Device Corporation
OV Switch off
OV Switch on
V
OV Switch off
OV Switch on
FIGURE 4A. PW-8X075P6
TYPICAL OVER VOLTAGE TRIP VS. OV ADJUST
SETTING WITH EXTERNAL RESISTOR CONNECTED
TO REGEN BUS-
FIGURE 4B. PW-8X075P6
TYPICAL OVER VOLTAGE TRIP VS. OV ADJUST
SETTING WITH EXTERNAL RESISTOR CONNECTED
TO VBUS+
NOTE
:
VH= HYSTERESIS VOLTAGE
NOTE
:
VH= HYSTERESIS VOLTAGE
UPPER/LOWER
50%
t
f
t
r
OUTPUT
90%
50%
10%
td(ON)
td(OFF)
FIGURE 5. PW-8X075P6 INPUT/OUTPUT TIMING
RELATIONSHIP
OUTPUT
UPPER
LOWER
DISABLE/
RESET
SLEEP-
MODE
Z
0
0
0
1
VBUS+
1
0
0
1
VBUS-
0
1
0
1
*
Z
1
1
0
1
X
X
1
X
Z
X
X
X
0
X = Indicates that this input is irrelevant
Z = High Impedance (off).
* = Illegal command that will cause one of the outputs to fault.
TABLE 5. PW-8X075P6 TRUTH TABLE
NOTE:
VBUS+ (27) and REGEN BUS- (26) on the power-pin side are
also connected to pin 22 and 17 on the control-pin side, respec-
tively, for ease of connecting the external resistor.
REGEN LOW,REGEN BUS-(APPLIES TO PW-85075P6 ONLY)
An external load dump resistor is connected between REGEN
LOW and VBUS+. When VBUS+ reaches the level set by the OV
ADJ, the internal clamp circuit will apply the load dump resistor
from VBUS+ to the VBUS-, thereby dissipating the regenerative
energy in the external resistor. In addition, REGEN BUS- has to
be externally connected to VBUS- for the clamp circuit to work
properly. This connection (PCB traces or wire) has to be able to
carry the regenerative current.
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