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부품번호 | WT8048N2 기능 |
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기능 | DPMS (Display Power Management Signaling) Detector for Green Monitor | ||
제조업체 | ETC | ||
로고 | |||
eltrend
WT8048
DPMS (Display Power Management
Signaling) Detector for Green Monitor
Aug. 31, 1995
DESCRIPTION
The WT8048 is a 8 pin P-DIP package IC, designed for the application of Power Saving
Monitor or Green Monitor.
As per DPMS proposal, the WT8048 provides a detective circuit of monitor power
management for the convenience of designers in designing Power Saving Monitor.
FEATURES
{ Accepting two seperated H&V synchronous signals with positive/ negative polarity.
{ Capable of processing horizontal frequency between 0Hz to 100kHz, and vertical
frequency between 0Hz to 100Hz.
{ Power Saving mode - It can detect the conditions of monitor to decide which will be
selected as following: ON mode / STAND_BY mode / SUSPEND mode / OFF mode.
{ An Override mode is defined to override the DPMS function during the design, test,
burn-in manufacture or diagnostic process if desired.
APPLICATION
{ DPMS mode's detection for Green Monitor
Weltrend Semiconductor, Inc.
2F., No. 24, Ind. E. 9th Rd., Science-Based Ind. Park,
Hsin-Chu, Taiwan, R. O. C.
Tel: 886-35-780241 Fax: 886-35-7704191
eltrend
WT8048
ELECTRICAL CHARACTERISTICS
A. WT8048
(VDD=5V, TOPT=24¢ J, FOSC=32768Hz)
ITEM
Input Current (HIN, VIN), when VIN=5V
Open Drain Output Low, when IOL = 6mA
Open Drain Sink Current, when VOL = 0.4V
Input Current (OSC), when VIN = 5V
SYMBOL
IIN1
VOL
VOL
IIN3
MIN.
TYP.
MAX.
5
0.4
6
5
UNIT
£ gA
VPP
mA
£ gA
B. WT8048N1 / N2
(VDD=5V, TOPT=24¢ J, FOSC= 450KHz)
ITEM
Input Current (HIN, VIN), when VIN=5V
Open Drain Output Low, when IOL = 6mA
Open Drain Sink Current, when VOL = 0.4V
Input Current (OSC), when VIN = 5V
SYMBOL
IIN1
VOL
VOL
IIN3
MIN.
TYP.
MAX.
5
0.4
6
15
UNIT
£ gA
VPP
mA
mA
C. WT8048N3 / N4
(VDD=5V, TOPT=24¢ J, FOSC= 3.58MHz)
ITEM
Input Current (HIN, VIN), when VIN=5V
Open Drain Output Low, when IOL = 6mA
Open Drain Sink Current, when VOL = 0.4V
Input Current (OSC), when VIN = 5V
SYMBOL
IIN1
VOL
VOL
IIN3
MIN.
TYP.
MAX.
5
0.4
6
5
UNIT
£ gA
VPP
mA
£ gA
4
4페이지 eltrend
WT8048
The Way WT8048 implements VESA DPMS
As shown on Table 2, when H_SYNC / V_SYNC signals transition from ON state to any one
of the three power saving state, WT8048 will delay 5.9 seconds to meet the VESA DPMS
requirement: the minimum 5 seconds delay to avoid unintentionally entering a power saving
state during display resolution and timing mode changes. If during this delay time period,
H_SYN and V_SYN signals return to ON state, then all three power management pins will
remain ON state. If power management state of H_SYNC and V_SYNC prolong for more
than 5.9 seconds, then these three power management pins will change to the corresponding
states. While changing from any power saving state back to ON state will take about 0.368
second for H_SYNC / V_SYNC pulse checking. And transition between any power saving
state will be done immediately.
MODE
ON
STAND_BY
SUSPEND
OFF
OVERRIDE
Table 2: The truth table of Power Saving Detector
HSIN
VSIN
Pulses
Pulses
No Pulses
Pulses
Pulses
No
Pulses
No Pulses
No
Pulses
No Pulses
No
Pulses
Manually Power On
STD_B
Y
1
0
0
0
1
SUSPEND
1
1
0
0
1
OFF
1
1
1
0
1
7
7페이지 | |||
구 성 | 총 10 페이지수 | ||
다운로드 | [ WT8048N2.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
WT8048N1 | DPMS (Display Power Management Signaling) Detector for Green Monitor | ETC |
WT8048N2 | DPMS (Display Power Management Signaling) Detector for Green Monitor | ETC |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |