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參數(shù)資料
| 型號(hào)： | TC6501 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Ultra Small Temperature Switches with Pin Selectable Hysteresis |
| 中文描述： | 超小型溫度開(kāi)關(guān)，引腳可選擇遲滯 |
| 文件頁(yè)數(shù)： | 1/17頁(yè) |
| 文件大?。?/td> | 326K |
| 代理商： | TC6501 |
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2004 Microchip Technology Inc.
DS21451D-page 1
M
TC6501/2/3/4
Features
5-Pin SOT-23A
Factory-programmed Thresholds from
-45°C to +125°C in 10°C Increments
Pin Selectable +2°C or +10°C Hysteresis
±0.5°C (Typ) Threshold Accuracy Over Full
Temperature Range
No External Components Required
17 μA Supply Current (Typ)
Applications
Thermal Management in PCs and Servers
Over-temperature Fail-safe Circuits
Simple Fan Controller
Temperature Alarms
Projectors/Printers
Notebook Computers
Network Boxes
Package Types
General Description
The TC6501/2/3/4 are SOT-23 temperature switches
that require no external components and are available
with factory-programmed temperature thresholds. A
choice of factory-trimmed temperature trip points are
also available. Pin-selectable hysteresis of +2°C or
+10°C allows flexibility to the design of the application.
These parts typically consume only 17 μA of current
and operate over the entire -55°C to +135°C
temperature range, while offering accuracies of ±0.5°C
(typ).
The TC6501 and TC6503 have an open-drain, active-
low output, which targets microcontroller reset control.
The TC6502 and TC6504 have a CMOS, active-high
output designed to drive the logic level MOSFET that
turns on a fan or heater element.
The TC6501/TC6502 are designed for hot temperature
monitoring (+35°C to +125°C). These devices assert a
logic signal when the temperature goes above the
threshold. The TC6503/TC6504 are optimized for cold
temperature monitoring (-45°C to +15°C) and assert a
logic signal when the temperature goes below the
threshold.
The TC6501/2/3/4 are offered with five standard tem-
perature thresholds. Available in 5-Pin SOT-23A pack-
ages, these parts are ideal for applications requiring
high integration, small size, low power and low installed
cost.
Functional Block Diagram
T
OVER
TC6502
HYST
TC6501
TC6502
1
2
3
5
V
CC
GND
GND
4
Note:
5-Pin SOT-23A is equivalent to EIAJ SC-74A
T
UNDER
TC6503
T
UNDER
TC6504
HYST
TC6503
TC6504
1
2
3
5
V
CC
GND
GND
4
T
OVER
TC6501
GND GNDHYST
+2.7V to +5.5V
V
CC
INT
PICmicro
Microcontroller
T
OVER
V
CC
TC6502
GND
100 pF
Ultra Small Temperature Switches
with Pin Selectable Hysteresis
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