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参数资料
| 型号： | RP-21002D0-290S |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, DMA10 |
| 封装： | DIP-10 |
| 文件页数： | 8/12页 |
| 文件大小： | 135K |
| 代理商： | RP-21002D0-290S |
5
Data Device Corporation
www.ddc-web.com
RP-21000 Series
H-04/03-0
tions. Since the Power MOSFET switches are not saturated dur-
ing transitions, the switching power dissipation is much greater
than the static dissipation, and longer transitions result in a larg-
er temperature rise. If the SSPC is rapidly turned on and off, the
high average dissipation could result in a significant temperature
rise in the SSPC. For this reason do not turn the SSPC off and
on more rapidly than 30 msec. This will limit the maximum tem-
perature of the switches to a safe level.
The RP-21000 has been designed to derive its internal power
requirements from the bias supply input (+5 Vdc).
APPLICATIONS INFORMATION
In some applications, low side switching will be required as
shown in FIGURE 1. In this configuration the load is being
switched through to system ground. The external 28 Vdc is con-
nected directly to the load while the return is connected to Pins
9 and 10, which are the Power Out pins. The Slew Control (Pin
8) is connected to maintain a controlled turn-on and turn-off of
the load current.
When the SSPC trips in accordance with the I2T characteristics,
the fall time is 200 s, maximum.
For load currents greater than 1200%, the SSPC will turn off in
less than 25 s. Between 800% and 1200%, the SSPC will turn
off in a time less than the "max. trip limit" shown in FIGURE 2
and may turn off in less than 25
s. When the SSPC turns off
under these fault conditions, the fall time is less than 25 s.
While the SSPC will always turn off in less than 25 s when the
load current is greater than 1200%, the actual current may
"spike" to a value higher than 1200% due to circuit delays. The
MOSFETs inherently self-limit the maximum current, depending
on the number of MOSFETs and their rating.
During turn-on and turn-off the rise and fall time of the output
voltage is controlled to be less than 200 s. This value is a com-
promise between faster response time with a greater amount of
RFI and EMI generated, and slower response time with less RFI
and EMI but greater power dissipated in the SSPC during transi-
CONTROL INPUT
LOAD CURRENT
TRIP POINT
STATUS 2
STATUS 1
T1
T2 T3 T4 T5
T6
T7
T8 T9
T10
T11 T12
T13
Note: *Voltage rise/fall time is specified for Power In equal to 28 Vdc and is proportional to the Power In voltage.
FIGURE 3. SOLID-STATE POWER CONTROLLER TIMING
*
s
200
VOLTAGE FALL TIME
T7-T8
ms
5.0
TRIP TURN-OFF STATUS 1 DELAY
T11-T13
s
SEE FIG. 2
TRIP TIME AFTER TURN-ON
T10-T11
*LOAD CURRENT < 800%
s
200
VOLTAGE FALL TIME AFTER TRIP
T11-T12
s
350
TURN-ON DELAY
T1-T2
ns
350
STATUS 1 & STATUS 2 RISE AND FALL TIME
T4-T5
s
350
TURN OFF DELAY
T6-7
ms
7.5
STATUS 1 & STATUS 2 TURN ON DELAY
T1-T4
*
s
200
VOLTAGE RISE TIME
T2-3
ms
5.0
STATUS 1 & STATUS 2 TURN OFF DELAY
T6-T9
*LOAD CURRENT > 1200%
s
25
VOLTAGE FALL TIME AFTER TRIP
T11-T12
NOTES
UNIT
MAXIMUM
DESCRIPTION
TIME
SOLID-STATE POWER CONTROLLER TIMING AT 28 VDC
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