參數(shù)資料
型號(hào): DS56
英文描述: Dual Temperature Comparator
中文描述: 雙溫度比較
文件頁數(shù): 1/6頁
文件大?。?/td> 95K
代理商: DS56
1 of 6
102299
FEATURES
§
Factory calibrated for sensitivity of +6.20
mV/°C and thermometer accuracy of ±2.0°C
over the 0°C to 85°C range and ±3°C over the
40°C to 0°C and +85°C to +125°C range
§
Measurement range of -40°C to +125°C
§
Integrated temperature sensor and voltage
reference
§
Two independent temperature setpoints with
respective logic outputs with set hysteresis
§
Narrow-body SO8 (150-mil) package
§
Wide power supply range (2.7V
V
DD
5.5V)
§
Functionally compatible with LM56xIM
§
Applications include monitoring disk drives,
printers, office equipment, HVAC,
appliances, or any power/cost/temperature-
sensitive environments.
PIN ASSIGNMENT
PIN DESCRIPTION
V
REF
- Bandgap Voltage Reference
Output
- Temperature Trip Point 2
- Temperature Trip Point 1
- Ground
- Temp Sensor Output Voltage
- Thermostat output for Trip
Point 2
- Thermostat output for Trip
Point 1
- Power Supply Voltage (2.7V
to 5.5V)
V
T2
V
T1
GND
V
TEMP
T
OUT2
T
OUT1
V
DD
DESCRIPTION
The DS56 Dual Temperature Comparator has two independent open-drain thermostat outputs and
respective trip point inputs. The trip points are set with external resistors that divide down the 1.25V
internal bandgap voltage reference. The voltage resulting from this resistive division is compared with the
voltage corresponding to the device’s junction temperature to define the thermostat output logic state. The
internal temperature sensor has a typical sensitivity of +6.2mV/°C and DC offset of +395 mV at 0°C.
Both thermostat outputs have 5°C of hysteresis.
For applications that require temperature measurement as well as control, the temperature sensor voltage
is brought out to a pin.
The DS56 is packaged in a compact 150-mil, 8-pin SOIC. Applications include disk drives, printers,
office equipment, HVAC, appliances, or any power/cost/temperature-sensitive environments.
DS56
Dual Temperature Comparator
PRELIMINARY
www.dalsemi.com
1
2
3
4
8
7
6
5
V
DD
T
OUT1
T
OUT2
V
TEMP
V
REF
V
T2
V
T1
GND
DS56S 8-Pin SOIC (150-mil)
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