- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄298830 > AS273D1LPA SPECIALTY ANALOG CIRCUIT, PBCY3 PDF資料下載
參數(shù)資料
| 型號(hào)： | AS273D1LPA |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBCY3 |
| 封裝： | TO-92, 3 PIN |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 84K |
| 代理商： | AS273D1LPA |
10
ASTEC Semiconductor
AS273
Over-Temperature Detector
Over-Temperature Protection with
Latch (Low Current)
The diagram of Figure 13 illustrates how a power
supply can be shut down with a simple two-
transistor latch. When the programmed over-
temp is reached, the open collector output of the
AS273 enables the latch and pulls V
CC below the
under-voltage threshold of the AS3842, shutting
off the AS3842. The latch can be disabled only
with a power reset.
Over-Temperature Protection with
Hysteresis
In this over-temperature circuit, the hysteresis of
the AS273 is used to automatically restart the
power supply after the temperature drops below
the hysteresis temperature window. R1 supplies
the current to power the AS273 after the AS3842
and the power supply are shut down. R2 and
the external zener set the over-temperature trip
point.
Figure 13.
Figure 14.
V
CC
I
CC = 400 mA
MAX.
REF
OUT
GND
AS273
COMP
V
REG
V
FB
V
CC
SENSE
OUT
RT/CT
GND
AS3842
R1
1 k
R3
350
+
R2
350
V BULK
R1
REF
OUT
GND
AS273
R2
COMP
V
REG
V
FB
V
CC
SENSE
OUT
RT/CT
GND
AS3842
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS29F040-150TI | 512K X 8 FLASH 5V PROM, 150 ns, PDSO32 |
| AS4DDR16M72-8/XT | 16M X 72 DDR DRAM, 0.8 ns, PBGA219 |
| AS5C4008F-35LE/883C | 512K X 8 STANDARD SRAM, 35 ns, CDFP32 |
| AS5C512K8F-35LE/883C | 512K X 8 STANDARD SRAM, 35 ns, CDFP36 |
| AS6C1008-55PCN | IC,AS6C1008-55PCN,DIP-32 LP SRAM,55NS,128K X 8,2.7-5.5V |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS273R2FLF | 制造商:TT Electronics / IRC 功能描述:AS273R2FLF |
| AS273R2HLF | 制造商:TT Electronics / IRC 功能描述:AS273R2HLF |
| AS273R2JLF | 制造商:TT Electronics / IRC 功能描述:AS273R2JLF |
| AS27500FLF | 制造商:TT Electronics / IRC 功能描述:AS27500FLF |
| AS27500HLF | 制造商:TT Electronics / IRC 功能描述:AS27500HLF |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。