- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382993 > G768 (Electronic Theatre Controls, Inc.) Remote/Local Temperature Sensor, 2 Fan Controllers with SMBus Serial Interface and System Reset Circuit PDF資料下載
參數(shù)資料
| 型號： | G768 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Remote/Local Temperature Sensor, 2 Fan Controllers with SMBus Serial Interface and System Reset Circuit |
| 中文描述： | 遠(yuǎn)程/本地溫度傳感器，2個風(fēng)扇，帶有SMBus串行接口和系統(tǒng)復(fù)位電路控制器 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 370K |
| 代理商： | G768 |
Ver 1.3
Oct 28, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G768B
Global Mixed-mode Technology Inc.
It uses pulse width modulation (PWM) method and an
on-chip MOSFET to control the fan speed to ±2% of
the programmed speed.
The desired fan speed is also programmed via
SMBus
TM
. The actual fan speed and fan status can be
read via the SMBus
TM
. Short-circuit protection is im-
plemented to prevent damages to the fan and this IC
itself. The G768B also turns on the fans by hardware
watchdog system. The fan controller would fully turn
on both fans when one of the following conditions
happens.
1. when either of the remote temperature is higher than
its own T
MAX
.
2.when either of these two remote diodes is open.
3.when both remote diodes are short
Typical Operating Circuit
The G768B also contains a microprocessor (μP) su-
pervisory circuit used to monitor the power supplies in
μP and digital systems. They provide excellent circuit
reliability and low cost by eliminating external compo-
nents and adjustments when used with 5V-powered
circuits. This circuit asserts a reset signal whenever
the V
CC
supply voltage declines below a preset
threshold, keeping it asserted for at least 140ms after
V
CC
has risen above the reset threshold. The G768B
has an active-low RESET output. The reset com-
parator is designed to ignore fast transients on V
CC
.
Reset threshold of this circuit is set to 4.38V.
The G768B is available in a small, 16-pin SSOP sur-
face-mount package.
INTERRUPT TO μC
10μF
OUT1
FG1
V
CC
DXP1
DXN
DXP2
RESET
GND
2200pF
2200pF
2N3904
2N3904
V
CC
10k EACH
SMBCLK
SMBDATA
CLOCK 32.768kHz
IN
FAN1
FG
10μF
OUT2
FG2
SMBCLK
SMBDATA
ALERT
CLK
10μF
G768B
RESET
μP
IN
FAN2
FG
10μF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| G775-0U | Single Phase Full Wave Bridge Retifiers |
| G775-1U | Single Phase Full Wave Bridge Retifiers |
| G775-2U | Single Phase Full Wave Bridge Retifiers |
| G775-3U | Single Phase Full Wave Bridge Retifiers |
| G775-4U | Single Phase Full Wave Bridge Retifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| G768193-3 | 制造商:Glenair Inc 功能描述: |
| G768194-5 | 制造商:Glenair Inc 功能描述: |
| G768194-6 | 制造商:Glenair Inc 功能描述: |
| G768194-7 | 制造商:Glenair Inc 功能描述:ADAPTER - Bulk |
| G768194-8 | 制造商:Glenair Inc 功能描述:ADAPTER - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。