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參數資料
| 型號： | MIC502 |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類： | FPGA |
| 英文描述： | FPGA - 100000 SYSTEM GATE 2.5 VOLT - NOT RECOMMENDED for NEW DESIGN |
| 中文描述： | 范進展信息管理IC |
| 文件頁數： | 1/11頁 |
| 文件大小： | 130K |
| 代理商： | MIC502 |
May 1999
163
MIC502
MIC502
Micrel
MIC502
Fan Management IC
Advance Information
Features
Temperature-proportional fan speed control
Low-cost, efficient PWM fan drive
4.5V to 13.2V IC supply range
Controls any voltage fan
Overtemperature detection with fault output
Integrated fan startup timer
Automatic user-specified sleep mode
Supports low-cost NTC/PTC thermistors
8-pin DIP and SOIC packages
Applications
NLX and ATX power supplies
Personal computers
File servers
Telecom and networking hardware
Printers, copiers, and office equipment
Instrumentation
Uninterruptable power supplies
Power amplifiers
Ordering Information
Part Number
MIC502BN
MIC502BM
Temperature Range
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Package
8-pin Plastic DIP
8-pin SOIC
General Description
The MIC502 is a thermal and fan management IC which
supports the features for NLX/ATX power supplies and other
control applications.
Fan speed is determined by an external temperature sensor,
typically a thermistor-resistor divider, and (optionally) a sec-
ond signal, such as the NLX “FanC” signal. The MIC502
produces a low-frequency pulse-width modulated output for
driving an external motor drive transistor. Low-frequency
PWM speed control allows operation of standard brushless
dc fans at low duty cycle for reduced acoustic noise and
permits the use of a very small power transistor. The PWM
time base is determined by an external capacitor.
An open-collector overtemperature fault output is asserted if
the primary control input is driven above the normal control
range.
The MIC502 features a low-power sleep mode with a user-
determined threshold. Sleep mode completely turns off the
fan and occurs when the system is asleep or off (both control
inputs very low). A complete shutdown or reset can also be
initiated by external circuitry as desired.
The MIC502 is available as 8-pin plastic DIP and SOIC
packages in the –40
°
C to +85
°
C industrial temperature
range.
Typical Application
VT1
CF
VSLP
GND
VDD
OUT
OTF
VT2
1
2
3
4
8
7
6
5
R1
T1
R3
R4
C
F
R2
12V
R
BASE
Overtemperature
Fault Output
MIC502
Secondary
Fan-control
Input
Fan
Q1
相關PDF資料 |
PDF描述 |
|---|---|
| MIC502BM | Replaced by PTN78060W,PTN78060H : |
| MIC502BN | Replaced by PTN78060W,PTN78060H : |
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| MIC5213-3.0BC5 | Teeny⑩ SC-70 レCap Low-Dropout Regulator Advance Information |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC502_06 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Fan Management IC |
| MIC502_11 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Fan Management IC |
| MIC5020 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Current-Sensing Low-Side MOSFET Driver |
| MIC5020_05 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Current-Sensing Low-Side MOSFET Driver |
| MIC5020BM | 功能描述:IC DRIVER MOSF LO SIDE HS 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅動器 - 外部開關 系列:- 標準包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數:1 輸出數:1 高端電壓 - 最大（自引導啟動）:600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應商設備封裝:8-DIP 包裝:管件 其它名稱:*IR2127 |
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