2U3823-30QDBVRG4Q1 datasheet(6/24 Pages) TI1

Part #	2U3823-30QDBVRG4Q1

Description	Voltage Monitor With Watchdog Timer

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Manufacturer	TI1 [Texas Instruments]

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V

IT-

V

DD

RESET

WDI

t

d

t

d

t

t(out)

t

d

undefined

1.1 V

TPS3820-33-Q1, TPS3820-50-Q1, TPS3823-25-Q1

TPS3823-30-Q1, TPS3823-33-Q1, TPS3823-50-Q1, TPS3824-30-Q1, TPS3824-33-Q1

TPS3824-50-Q1, TPS3825-33-Q1, TPS3825-50-Q1, TPS3828-33-Q1, TPS3828-50-Q1

SGLS143C – DECEMBER 2002 – REVISED DECEMBER 2015

www.ti.com

7.6 Timing Requirements

At RL = 1 MΩ, CL = 50 pF, and TJ = 25°C, unless otherwise noted.

MIN

TYP

MAX

UNIT

at VDD

VDD = VIT− + 0.2 V, VDD = VIT– – 0.2 V

6

μs

tw

Pulse width

at MR

VDD ≥ VIT− + 0.2 V, VIL = 0.3 × VDD, VIH = 0.7 × VDD

1

μs

at WDI

VDD ≥ VIT− + 0.2 V, VIL = 0.3 × VDD, VIH = 0.7 × VDD

100

ns

7.7 Switching Characteristics

At RL = 1 MΩ, CL = 50 pF, and TA = 25°C, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TPS3820-xx-Q1

112

200

300

ms

VDD ≥ VIT− + 0.2 V

ttout

Watchdog time out

See Figure 1

TPS3823/4/8-xx-Q1

0.9

1.6

2.5

s

TPS3820-xx-Q1

15

25

37

VDD ≥ VIT− + 0.2 V

td

Delay time

ms

See Figure 1

TPS3823/4/5/8-xx-Q1

120

200

300

VDD ≥ VIT− + 0.2 V,

MR to RESET delay

VIL = 0.3 × VDD,

0.1

(TPS3820/3/5/8-xx-Q1)

Propagation (delay) time,

VIH = 0.7 × VDD

tPHL

µs

high-to-low-level output

VIL = VIT– – 0.2 V,

VDD to RESET delay

25

VIH = VIT– + 0.2 V

VDD ≥ VIT− + 0.2 V,

MR to RESET delay

VIL = 0.3 × VDD,

0.1

(TPS3824/5-xx-Q1)

Propagation (delay) time,

VIH = 0.7 × VDD

tPLH

µs

low-to-high-level output

VIL = VIT– – 0.2 V,

VDD to RESET delay

25

(TPS3824/5-xx-Q1)

VIH = VIT– + 0.2 V

Figure 1. Delay and Time Out Timing Diagram

6

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Product Folder Links: TPS3820-33-Q1 TPS3820-50-Q1 TPS3823-25-Q1 TPS3823-30-Q1 TPS3823-33-Q1 TPS3823-

50-Q1 TPS3824-30-Q1 TPS3824-33-Q1 TPS3824-50-Q1 TPS3825-33-Q1 TPS3825-50-Q1 TPS3828-33-Q1

TPS3828-50-Q1

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2U3823-30QDBVRG4Q1 Datasheet(PDF) 6 Page - Texas Instruments

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