RT9807

3

DS9807-01 April 2011

www.richtek.com

Electrical Characteristics

°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Operating VDD Range

0.9

--

5.5

V

Supply Current

--

3

5

μA

Reset Threshold

1.2

--

3.3

V

Threshold Voltage Accuracy

−1.5

--

1.5

%

Threshold Voltage Hysteresis

--

--

mV

Reset Threshold Tempco

--

100

--

ppm/

°C

VDD Drop to Reset Delay

--

100

--

μs

RST Output Voltage Low

(Note 5)

--

--

0.4

V

Logic-High

--

--

MR Input

Threshold voltage

Logic-Low

--

--

V

MR Glitch Rejection

--

80

--

ns

--

2

--

μs

MR Pull-up Resistance

--

20

--

k

Ω

3.35

4.375

5.40

Reset Timeout Period

--

0.275

--

ms

CT Source Current

--

240

--

nA

CT Source Threshold Voltage

--

0.65

--

V

CT Threshold Hysteresis

--

33

--

mV

Note 1.

Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for

stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the

operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended

periods may remain possibility to affect device reliability.

Note 2.

thermal measurement standard.

Note 3.

Devices are ESD sensitive. Handling precaution is recommended.

Note 4.

The device is not guaranteed to function outside its operating conditions.

Note 5.

the pull-up resistor. For typical application R = 100k

Ω, VOL is less than 0.2V.