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LM56是一款精密低功耗恒溫器。通過使用3個(gè)外部電阻分壓LM56 1.250V帶隙電壓基準(zhǔn)，可以產(chǎn)生兩個(gè)穩(wěn)定的溫度跳變點(diǎn)（V T1 和V T2 ）。 LM56有兩個(gè)數(shù)字輸出。當(dāng)溫度超過T1時(shí)，OUT1變?yōu)榈碗娖?，?dāng)溫度低于T1時(shí)，OUT1變?yōu)楦唠娖剑═1-T HYST ）。類似地，當(dāng)溫度超過T2時(shí)OUT2變?yōu)榈碗娖?，?dāng)溫度低于T2時(shí)變?yōu)楦唠娖剑═2-T HYST ）。 T HYST 是內(nèi)部設(shè)置的5°C典型遲滯。
LM56采用8引腳VSSOP表面貼裝封裝和8引腳SOIC封裝。
| Operating Temperature Range (C) |
| Accuracy Over Temp Range (Max) (C) |
| Sensor Gain (mV/Deg C) |
| SetPoint Value (deg C) |
| SetPoint Type |
| Output Type |
| Supply Voltage (Min) (V) |
| Supply Voltage (Max) (V) |
| Supply Current (Typ) (uA) |
| Comparator Channels (#) |
| Features |
| Rating |
| Package Group |
| Package Size: mm2:W x L (PKG) |
| Interface |
| LM56 | LM26LV | LM57 | TMP300 | TMP708 | TMP709 |
|---|---|---|---|---|---|
| -40 to 125 | 0 to 150 | -50 to 150 | -40 to 125 | -40 to 125 | -40 to 125 |
| 3 | 2.3 | 1.5 | 2 | 3 | 3 |
| 6.2 | -5.1 to -12.8 | -5.2 to -12.9 | 10 | ||
| -40 to 125 |
Range (0 to 150) 50, 60, 65, 70 75, 80, 85, 90 95, 100, 105, 110 115, 120, 125, 130 135, 140, 145, 150 |
-40 to 150 | -40 to 125 | 0 to 125 | 0 to 125 |
| Resistor Programmable | Factory Programmed | Resistor Programmable | Resistor Programmable | Resistor Programmable | Resistor Programmable |
| Open Drain |
Open Drain Push Pull |
Open Drain Push Pull |
Open Drain | Open Drain | Open Drain |
| 2.7 | 1.6 | 2.4 | 1.8 | 2.7 | 2.7 |
| 10 | 5.5 | 5.5 | 18 | 5.5 | 5.5 |
| 230 | 8 | 24 | 110 | 40 | 40 |
| 2 | 1 | 1 | 1 | 1 | 1 |
|
Built-in Hysteresis Hysteresis (5°C) Temperature Sensor and Switch |
Built-in Hysteresis Hysteresis (5°C) Temperature Sensor and Switch Trip Test |
Built-in Hysteresis Hysteresis (5°C or 10°C) Temperature Sensor and Switch Trip Test |
Hysteresis (5°C or 10°C) Pin-Selectable Hysteresis Temperature Sensor and Switch |
Hysteresis (10°C or 30°C) Pin-Selectable Hysteresis |
Hysteresis (2°C or 10°C) Pin-Selectable Hysteresis |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
|
SOIC VSSOP |
WSON |
TSSOP WSON |
SC70 SOT-23 |
SOT-23 | SOT-23 |
|
8SOIC: 29 mm2: 6 x 4.9(SOIC) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) |
See datasheet (WSON) |
8TSSOP: 19 mm2: 6.4 x 3(TSSOP) See datasheet (WSON) |
6SC70: 4 mm2: 2.1 x 2(SC70) 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) |
5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) |
|
Analog Output Switch |
Analog Output Switch |
Analog Output Switch |
Analog Output Switch |
Switch | Switch |
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