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参数资料
| 型号： | TD230IDT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | MICRO, PLASTIC, SO-16 |
| 文件页数： | 2/15页 |
| 文件大小： | 497K |
| 代理商： | TD230IDT |
TD230
10/15
Do
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t u
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for
new
design
Figure 8 : Decentralized Protection
Therefore, when a fault appears on the positive
rail, the definitive shutdown of the positive NMOS
will lead to the shutdown of the negative NMOS,
but when a fault appears on the negative rail, the
definitive shutdown of the negative NMOS will
have no effect on the positive NMOS.
Several possibilities are offered to reset the whole
system when it has been led to definitive shut-
down :
u the card can be unplugged and plugged
back (live insertion)
u the INHIBIT pin can be set to active state
during a short time (100
s typ or more) in
the case of remote control facilities
3. PERFORMANCES AND EVALUATION
All the curves shown in this application note have
been realized with the TD230 Evaluation Board.
The external conditions and components were as
listed hereafter :
u V
CC
+ = 5V
u V
CC
- = -5V
u Suppliable output short circuit current = 5A
u IC = TD230
u MOSFET 1 = BUZ71
u MOSFET 2 = BUZ71
u L
BOOST = 220H
u C
BOOST = 100nF
u C
TRIP1 = 10F
u C
TRIP2 = 10F
u R
S1 = 68m
u R
S2 = 68m
u C
SS1 = 1nF
u C
SS2 = 1nF
u Positive Bypass = 4.7
F (plastic)
u Negative Bypass = 4.7
F (plastic)
The evaluation board is available and allows to
test the performances of the TD230. The layout
and schematic of this evaluation board are given
on figures 9A-9B-9C.
4. CAUTIONS
For proper use of the TD230 as a reliable protec-
tion device, a few precautions must be taken :
1. Proper bypass capacitors must be connected
as close as possible to the power pins of the
TD230 (PV
CC, NVCC, GND). Some recommended
values are given in table (a).
2. The OSCGND pin must be tied to the GND pin
externally
(printed
board)
to
ensure
proper
step-up converter reference. If not, the step-up
converter will not start.
3. The INHIBIT pin is a CMOS/TTL compatible in-
put which should therefore not be left unconnect-
ed. The absolute maximum rating of this input is
7V. It should be tied to the TTL compatible output
of an eventual control block, or, if it should not be
used, tied to the GND pin.
TD230
BOARD1
BOARD2
BOARD3
BOARDN
Vcc+
Power Supply
GND
Vcc-
Do
no
t u
se
for
new
design
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TD230IN | 功能描述:电源开关 IC - 配电 Circuit Breaker RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| TD230N | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ELECTRONIC CIRCUIT BREAKER |
| TD231 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Technical Specifications for 5 kA, Normal-Duty Distribution 4.5 kV and 5 kV VariSTAR?? MOV Disks |
| TD231-1000P | 制造商:TE Connectivity 功能描述:TIME DELAY RELAY - Trays |
| TD231-1000S | 制造商:TE Connectivity 功能描述:TIME DELAY RELAY - Trays |
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