LM57-Q1

SNIS191A – JULY 2015 – REVISED JULY 2015

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Electrical Characteristics (continued)

Unless otherwise noted, these specifications apply for VDD = 2.4 to 5.5 V and over free air temperature range. These limits do

not include DC load regulation. These stated accuracy limits are with reference to the values in Table 1.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

OTHER TEMPERATURE SENSOR SPECIFICATIONS

J2:

−50°C to 52°C

−5.166

J3: 52°C to 97°C

−7.752

VTEMP sensor gain

mV/°C

J4: 97°C to 119°C

−10.339

J5: 119°C to 160°C

−12.924

0.18

mV

Line regulation DC: supply-

Temp = 90°C

58

μV/V

to-VTEMP

(1)

−84

dB

Source

≤ 240 µA, (VDD – VTEMP) ≥ 200 mV; TA

−1

=

−50°C to 150°C

mV

Load regulation: VTEMP

Sink

≤ 300 µA, VTEMP ≥ 360 mV; TA = −50°C

output (2)

1

to 150°C

Source or sink = 100 µA; TA = −50°C to 150°C

1

Ω

Maximum Load

No output series resistor required; (See VTEMP

1100

pF

capacitance: VTEMP output

Capacitive Loads )

for all LM57-Q1 for TA ≤ 150°C

24

28

µA

TA = 150°C to 160°C for LM57FSPWQ1 and

Supply current: quiescent

24

29

µA

IS

LM57TSPWQ1

(3)

TA = 170°C for LM57FSPWQ1 and

26

µA

LM57TSPWQ1

TRIP-TEST INPUT

VIH

Logic 1 threshold voltage

VDD – 0.5

V

VIL

Logic 0 threshold voltage

0.5

V

IIH

Logic 1 input current

1.4

3

µA

Logic 0 input leakage

IIL

TA = −50°C to 150°C

0.001

1

µA

current (4)

TOVER (PUSH-PULL, ACTIVE-HIGH) OUTPUT

Source

≤ 600 µA

VDD – 0.2

Logic 1 push-pull output

VOH

V

voltage

Source

≤ 1.2 mA

VDD – 0.45

Sink

≤ 600 µA

0.2

VOL

Logic 0 output voltage

V

Sink

≤ 1.2 mA

0.45

TOVER (OPEN-DRAIN, ACTIVE-LOW) OUTPUT

Sink

≤ 600 µA

0.2

VOL

Logic 0 output voltage

V

Sink

≤1.2 mA

0.45

Logic 1 output leakage

IOH

Temperature = 30°C;

0.001

1

µA

current (4)

(1)

Line regulation (DC) is calculated by subtracting the output voltage at the highest supply voltage from the output voltage at the lowest

supply voltage. The typical DC line regulation specification does not include the output voltage shift discussed in VTEMP Voltage Shift .

(2)

Source currents are flowing out of the LM57-Q1. Sink currents are flowing into the LM57-Q1. Load Regulation is calculated by

measuring VTEMP at 0 μA and subtracting the value with the conditions specified.

(3)

Supply current refers to the quiescent current of the LM57-Q1 only and does not include any load current

(4)

This current is leakage current only and is therefore highest at high temperatures. Prototype test indicate that the leakage is well below

1

μA over the full temperature range. This 1 μA specification reflects the limitations of measuring leakage at room temperature. For this

reason only, the leakage current is not specified at a lower value.

8

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