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RT9711A

User Programmable Micro-Power Voltage Detectors

Unspecified 

RT9801A/B

Absolute Maximum Ratings

z Terminal Voltage (with Respect to GND)

VDD ------------------------------------------------------------------------------------------------------------------------ –0.3V to 6.0V

All Other Inputs -------------------------------------------------------------------------------------------------------- –0.3V to VDD+0.3V

z Input Current, VDD ----------------------------------------------------------------------------------------------------- 20mA

z Continuous Power Dissipation, PD @ TA = 25°C

SOT-23-6 ---------------------------------------------------------------------------------------------------------------- 0.25W

z Operating Junction Temperature Range -------------------------------------------------------------------------- –40°C to 125°C

z Storage Temperature Range ---------------------------------------------------------------------------------------- –65°C to 125°C

z Package Thermal Resistance

SOT-23-6, θJA ----------------------------------------------------------------------------------------------------------- 250°C /W

z Lead Temperature (Soldering, 10sec.) ---------------------------------------------------------------------------- 260°C

Electrical Characteristics

(VDD = 3V, unless otherwise specified)

Parameter

Symbol

Test Conditions

Operating VDD Range

VDD

Supply Current

IDD

VDD = 1.5V ~ 3.5V, ISINK = 0

VDD = 3.5V ~ 5V, ISINK = 0

Reset Threshold

Threshold Voltage Accuracy

VDD Drop to Reset Delay

VTH

ΔVTH

tRD

TA = 27°C

TA = 27°C

Drop = -125mV

Min Typ Max Units

0.9

--

6

V

--

--

3

μA

--

--

3.3

--

Note1

--

V

--

--

3

%

--

--

20

μs

Reset Active Timeout Period tRP

VDD ≥ 1.02×VTH, Programmable 120

200

280

ms

VSET Pin Input Threshold

RESET Output Voltage

VIL

TA = 27°C

VIH

TA = 27°C

VOL

VDD < VTH, ISINK = 3.5mA

-- 0.15VDD --

V

-- 0.85VDD --

--

0.4

--

V

Timing Diagram

VDD

VTH

VDD

VTH

Drop

tRP

VRESET

VRESET

tRD

DS9801AB-11 March 2007

www.richtek.com

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