參數(shù)資料
型號(hào): R3132Q30EC8-TR-FA
廠商: RICOH COMPANY LTD
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4
封裝: ULTRA SMALL, SC-82-AB, 4 PIN
文件頁(yè)數(shù): 8/27頁(yè)
文件大?。?/td> 245K
代理商: R3132Q30EC8-TR-FA
R3132QxxA/C, R3133QxxA/C
16
OPERATION
Operation of R3132Q Series
OUT
VDD
GND
Vref
+
-
Nch
Rb
Ra
Pch
Comparator
Delay
Circuit
Block Diagram
&0262XWSXW7\SH
287SLQLVFRQQHFWHGWRWKHGUDLQRI1FK7UDQG 3FK 7ULQWKLV,&
1FK 2SHQ 'UDLQ 2XWSXW 7\SH
287SLQLVFRQQHFWHGWRWKHGUDLQRI1FK7U LQWKLV,&
287SLQVKRXOGEHSXOOHGXSWR9'' RU DQH[WHUQDO YROWDJH OHYHO
GND
A
B
1
GND
tDELAY
Detector Threshold (VDET)
=Relased Voltage
Supply
Voltage
(VDD)
Output
Voltage
(OUT)
Minimum Operating Voltage
(VDDL)
2
3
4
5
Operating Diagram
,QWKHDERYH GLDJUDP
x 2XWSXW YROWDJH EHFRPHV HTXDOWR VXSSO\YROWDJH 1FK RSHQGUDLQRXWSXW W\SH HTXDOWRSXOOXS9ROWDJH
y :KHQ WKH VXSSO\YROWDJHLVGRZQ WR WKH GHWHFWRU WKUHVKROG OHYHO 3RLQW $ 9UHI ≥ 9'' × 5E 5D5E LV WUXH 7KHQ
WKHRXWSXWRIWKHFRPSDUDWRULVUHYHUVHGWKXVRXWSXWYROWDJHEHFRPHV HTXDOWR *1'OHYHO
z :KHQ WKH VXSSO\ YROWDJH LV ORZHU WKDQ PLQLPXP RSHUDWLQJ YROWDJH WKH RXWSXW RI WUDQVLVWRU LV LQGHILQLWH WKHUHIRUH
WKHRXWSXW LVDOVR LQGHILQLWH
{ 2XWSXWYROWDJH LVHTXDO WR*1'OHYHO
| :KHQ WKH VXSSO\ YROWDJH LV KLJKHU WKDQ WKH UHOHDVHG YROWDJH 3RLQW % 9UHI ≥ 9'' × 5E 5D 5E LV WUXH 7KHQ WKH
RXWSXW RI WKH FRPSDUDWRU LV UHYHUVHG WKXV WKH RXWSXW YROWDJH EHFRPHV HTXDO WR WKH VXSSO\ YROWDJH 1FK RSHQ GUDLQ
RXWSXW W\SH HTXDOWRSXOOXSYROWDJH
7KHUH LVQRK\VWHUHVLV UDQJH EHWZHHQWKH GHWHFWRUWKUHVKROGDQGWKHUHOHDVHG YROWDJH
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