AAT3519IGV-3.60-B-C-T1 - AnalogicTech

SmartSwitch™

AAT3510/1/2/3/4/5/6/7/8/9

Micropower µP Reset with Watchdog Timer

3510.2004.08.1.4 1

General Description

The AAT351x PowerManager™ products are

members of AnalogicTech™'s Total Power

Management IC™ product family. This family of

Microprocessor Reset Circuits provides the ulti-

mate in versatility, allowing system designers full

customization of the µP monitor and Reset function

without any additional components. The AAT351x

family offers several combinations of threshold

voltage, watchdog timeout period, reset active peri-

od and output drive configurations, which are all

factory programmed options. All devices are avail-

able in 32 reset threshold voltages from 2.6V up to

5V, with three watchdog timeout periods from

6.3ms to 1600ms and three reset timeouts from

1ms up to 140ms. Available output configurations

are active low push-pull, active low open drain,

active low bi-directional and active high push-pull

The AAT351x family is designed to ignore fast neg-

ative transients on VDD and to ensure that Reset

outputs remain valid down to 1V.

The AAT351x family is available in the space saving

5-pin SOT23 surface mount package and is speci-

fied over the -40 to +85°C temperature range.

Features

• Tight voltage tolerance: ±1.5%

• Low quiescent current: 5µA

• Guaranteed Reset Valid down to 1V

• 32 voltage options from 2.6V to 5.0V

• 3 Reset active period options

• 1ms, 20ms, 140ms

• 3 Watchdog timeout period options

• 6.3ms, 102ms, 1600ms

• 4 output options:

• Open drain

• Inverting

• Non-inverting

• Bi-directional

• Low Tempco: 100ppm/°C

• 5-pin SOT23 package

Applications

• Notebook Computers

• Portable Electronics

• Industrial Controllers

• Intelligent Instruments

• Critical µP and µC Supply Monitoring

• Power-On reset circuits

• Embedded Control Systems

Typical Application

AAT351x

RESET

GND

(RESET)

RESET

INPUT µP

VDD

I/O LINEWDI

PowerManager™

AAT3510/1/2/3/4/5/6/7/8/9

Micropower µP Reset with Watchdog Timer

23510.2004.08.1.4

Pin Descriptions

Pin Configuration

(Top View)

AAT3516

AAT3519

(Top View)

AAT3510

AAT3511

(Top View)

AAT3513

AAT3514

AAT3517 AAT3518

(Top View)

AAT3512AAT3515

5-lead SOT23 5-lead SOT23

GND

WDI

RESET

GND

RESET

GND

WDI

RESET

GND

WDI

RESET

Pin #

AAT3510 AAT3512 AAT3513 AAT3515

AAT3511 AAT3514 AAT3516

AAT3517 AAT3518 AAT3519 Symbol Function

1 N/A 1 1 RESET AAT3510/13/15: RESET output goes low whenever VDD

falls below the reset threshold. CMOS push-pull Output

AAT3511/14/16: RESET output goes low whenever VDD

falls below the reset threshold. Bidirectional CMOS push-

pull Output intended to interface directly to microproces-

sors with bi-directional resets

AAT3517/18/19: RESET output goes low whenever VDD

falls below the reset threshold. Open drain output. Connect

a pull-up resistor to any supply voltage up to 5.5V

2 2 2 2 GND Ground connection pin

1 3 3 RESET RESET active-high output. This CMOS push-pull signal is

the logical inverse of RESET.

3 3 N/A 4 MR Manual reset input pin. Active low. Pull low to force a reset.

4 4 4 N/A WDI Watchdog input pin. Triggers a reset if it remains in a

steady state for the duration of the watchdog timer period.

5555V

CC Input voltage pin

AAT3510/1/2/3/4/5/6/7/8/9

Micropower µP Reset with Watchdog Timer

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Absolute Maximum Ratings (TA=25°C unless otherwise noted)

Note: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at con-

ditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time.

Thermal Information

Note 1: Mounted on FR4 board

Electrical Characteristics (VCC = 2.5V to 5.5V, TA= -40 to +85°C 1unless otherwise noted.

Typical values are at TA=25°C )

Symbol Description Conditions Min Typ Max Units

VCC Operating Voltage Range TA= -40°C to +85°C 1 5.5 V

AAT3510/1/2/3/4/7/8: VCC = 3.6V 5 15

MR & WDI unconnected VCC = 5.5V 6 18

ICC Supply Current AAT3515/6/9: VCC = 3.6V 15 µA

MR unconnected VCC = 5.5V 18

VTH Reset Threshold Voltage TA= 25°C VTHNOM-1.5% VTH VTHNOM+1.5% V

TA= -40 to +85°C VTHNOM-2.5% VTH VTHNOM+2.5%

TCReference Voltage -40°C < TA< +85°C ±40 ppm/°C

Temp Coeff

AAT351xIGV-xx-A-x-T1 1 1.4 2

tRP

Reset Active Timeout AAT351xIGV-xx-B-x-T1 20 28 40 ms

Period AAT351xIGV-xx-C-x-T1 140 200 280

TRD VCC to RESET Delay VCC falling at 1mV/µs 40 µs

Symbol Description Value Units

ΘJA Maximum Thermal Resistance1190 °C/W

PDMaximum Power Dissipation1526 mW

Symbol Description Max Units

VCC VCC to GND -0.3 to 6 V

VMR, VWDI MR, WDI to GND -0.3 to VCC+0.3 V

VRESET

RESET to GND (Push-Pull or Bidirectional Output) -0.3 to VCC+0.3 V

RESET to GND (Open Drain Output) -0.3 to 6

IVCC, IMR, IWDI Maximum Continuous Input Current 20 mA

IRESET RESET/RESET Output Current 20 mA

dVCC/dt Rate of rise of VCC 100 V/µs

TJOperating Junction Temperature Range (-40° to 150°C) 150 °C

AAT3510/1/2/3/4/5/6/7/8/9

Micropower µP Reset with Watchdog Timer

43510.2004.08.1.4

Electrical Characteristics (VCC = 2.5V to 5.5V, TA= -40 to +85ºC1unless otherwise noted.

Typical values are at TA=25°C )

Symbol Description Conditions Min Typ Max Units

Push/Pull RESET Output (AAT3510, 3512, 3513, 3514, 3515, 3516, 3518, 3519)

VCC ≥1.0V, ISINK = 50µA 0.3

VCC ≥1.2V, ISINK = 100µA 0.3

VOL RESET Low Output Voltage VCC ≥2.7V, ISINK = 1.2mA 0.3 V

VCC ≥4.5V, ISINK = 3.2mA 0.4

VOH RESET High Output Voltage VCC ≥2.7V, ISOURCE = 500µA 0.8 x VCC V

VCC ≥4.5V, ISOURCE = 800µA VCC - 1.5

VCC ≥2.7V, ISINK = 1.2mA 0.3

RESET Low Output Voltage VCC ≥4.5V, ISINK = 3.2mA 0.4

VOH VCC ≥1.8V, ISOURCE = 150µA 0.8 x VCC V

RESET High Output Voltage VCC ≥2.7V, ISOURCE = 500µA 0.8 x VCC

VCC ≥4.5V, ISOURCE = 800µA VCC - 1.5

Bidirectional RESET Output (AAT3511, 3514, 3516)

tSTransition Flip-Flop Setup Time2400 ns

VCC = 3.0V, CL= 120pF 333

tRRESET Output Rise Time3VCC = 5.0V, CL= 200pF 333 ns

VCC = 3.0V, CL= 250pF 666

VCC = 5.0V, CL= 400pF 666

VPTH Active Pullup Enable Threshold VCC = 5.0V 0.4 0.65 V

RESET Active Pullup Current VCC = 5.0V 20 mA

RESET Pullup Resistance 4.2 4.7 5.2 kΩ

Open-Drain RESET Output (AAT3517, 3518, 3519)

VCC ≥1.0V, ISINK = 50µA 0.3

VCC ≥1.2V, ISINK = 100µA 0.3

VOL RESET Low Output Voltage VCC ≥2.7V, ISINK = 1.2mA 0.3 V

VCC ≥4.5V, ISINK = 3.2mA 0.4

ID(OFF) Reset Leakage Current 1.0 µA

Watchdog Input (AAT3510, 3511, 3512, 3513, 3514, 3517, 3518)

AAT351xIGV-xx-x-A-T1 4.3 6.3 9.3

tWD Watchdog Timeout Period AAT351xIGV-xx-x-B-T1 71 102 153 ms

AAT351xIGV-xx-x-C-T1 41.12 1.6 2.4 s

tWDI WDI Minimum Pulse Width VIL = 0.3 x VCC, VIH = 0.7 x VCC 50 ns

VIL WDI Input Threshold 50.3 x VCC

VIH WDI Input Threshold 50.8 x VCC V

IWDI WDI Input Current 6WDI = VCC, time average 120 160 µA

VWDI = 0, time average -20 -15

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Micropower µP Reset with Watchdog Timer

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Note 1: Over-temperature limits are guaranteed by design, not production tested.

Note 2: This is the minimum time RESET must be held low by an external pulldown source to set the active pullup flip-flop.

Note 3: Measured from RESET VOL to (0.8 x VCC), Open Circuit Output.

Note 4: Watchdog timeout period C is not available on AAT3513, AAT3514, and AAT3518.

Note 5: WDI is internally serviced within the watchdog period if WDI is left unconnected.

Note 6: The WDI input current is specified as the average input current when the WDI input is driven high or low. The WDI input is

designed for a three-stated-output device with a 10µA maximum leakage current and capable of driving a maximum capacitive load of

200pF. The three-state device must be able to source and sink at least 200µA when active.

Symbol Description Conditions Min Typ Max Units

Manual RESET Input (AAT3510, 3511, 3512, 3515, 3516, 3517, 3519)

VIL MR Input Threshold 0.3 x VCC

VIH MR Input Threshold 0.7 x VCC

MR Input Pulse Width 1 µs

MR Glitch Rejection 100 ns

MR Internal Pullup Resistance TA= 25°C 35 52 75 kΩ

MR to Reset Delay VCC = 5V 230 ns

AAT3510/1/2/3/4/5/6/7/8/9

Micropower µP Reset with Watchdog Timer

63510.2004.08.1.4

Typical Characteristics

(Unless otherwise noted, VIN = 3V, TA= 25°C)

Maximum VCC Transient Duration vs.

Reset Threshold Overdrive

10 100 1000

Reset Threshold Overdrive (mV) VRST-VCC

Transient Duration (µs)

VRST =2.63V

Normalized Watchdog Timeout Period

vs. Temperature

0.95

0.96

0.97

0.98

0.99

1.00

1.01

1.02

1.03

1.04

1.05

-40 -20 0 20 40 60 80 100

Temperature (°C)

Normalized Timeout Period

Normalized Reset Timeout Period vs.

Temperature

0.95

0.96

0.97

0.98

0.99

1.00

1.01

1.02

1.03

1.04

1.05

-40 -20 0 20 40 60 80 100

Temperature (°C)

Normalized Timeout Period

Manual Reset to RESET Propagation

Delay vs. Temperature

200

250

300

350

400

450

500

-40 -20 0 20 40 60 80 100

Temperature (°C)

Propagation Delay (ns)

VCC=5V

Vcc Falling To RESET Propagation

Delay vs. Temperature

100

120

140

160

-40 -20 0 20 40 60 80 100

Temperature (°C)

Reset Propagation Delay (µs)

Vcc falling at 1mV/µs

VRST -Vcc=100mV

Supply Current vs. Temperature

-40 -20 0 20 40 60 80 100

Temperature (°C)

Supply Current (µA)

Vcc=5V

Vcc=3V

Vcc=1V

AAT3510/1/2/3/4/5/6/7/8/9

Micropower µP Reset with Watchdog Timer

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Typical Characteristics

(Unless otherwise noted, VIN = 3V, TA= 25°C)

Bidirectional Pullup Characteristic

200ns/div

PASSIVE

4.7kΩ

PULLUP

2V/div

RESET,

ACTIVE

PULLUP

2V/div

RESET,

INPUT

5V/div

VCC

GND

100pF

INPUT

+5V

RESET

74HC05

100pF

4.7k

+5V

74HC05

INPUT

AAT3510/1/2/3/4/5/6/7/8/9

Micropower µP Reset with Watchdog Timer

83510.2004.08.1.4

Functional Block Diagram

Note 1: MR pin available on AAT3510/1/2/5/6/7/9

Note 2: WDI pin avaliable on AAT3510/1/2/3/4/7/8

Note 3: RESET pin available on AAT3510/1/3/4/5/6/7/8/9

Note 4: RESET pin available on AAT3512/3/4/5/6/8/9

Reset

Generator

Watchdog

Timer

Watchdog

Timer

Detector

VCC

GND

RESET3

VREF

MR1

WDI2

RESET4

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Micropower µP Reset with Watchdog Timer

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Factory Trimmed Reset Thresholds* and Ordering Information

Reset Active Period

A: TR(MIN) = 1ms

B: TR(MIN) = 20ms

C: TR(MIN) = 140ms

Watchdog Timeout Period

A: TWD(NOM) = 6.3ms

B: TWD(NOM) = 102ms

C: TWD(NOM) = 1600ms*

VDD Threshold Voltage

2.63: VTH(NOM) = 2.63V 3.90: VTH(NOM) = 3.9V

2.70: VTH(NOM) = 2.7V 4.00: VTH(NOM) = 4.0V

2.80: VTH(NOM) = 2.8V 4.10: VTH(NOM) = 4.1V

2.93: VTH(NOM) = 2.93V 4.20: VTH(NOM) = 4.2V

3.00: VTH(NOM) = 3.0V 4.38: VTH(NOM) = 4.3V

3.08: VTH(NOM) = 3.08V 4.40: VTH(NOM) = 4.38V

3.20: VTH(NOM) = 3.2V 4.50: VTH(NOM) = 4.5V

3.30: VTH(NOM) = 3.3V 4.63: VTH(NOM) = 4.63V

3.40: VTH(NOM) = 3.4V 4.70: VTH(NOM) = 4.7V

3.50: VTH(NOM) = 3.5V 4.80: VTH(NOM) = 4.8V

3.60: VTH(NOM) = 3.6V 4.90: VTH(NOM) = 4.9V

3.70: VTH(NOM) = 3.7V 5.00: VTH(NOM) = 5.0V

3.80: VTH(NOM) = 3.8V

* Watchdog timeout period C is not avaliable on AAT3513, AAT3514 and AAT3518.

AAT351x IGV - X.XX -X- X-T1

Reset Active Period

Watchdog Timeout (if applicable)

Threshold Voltage

AAT3510/1/2/3/4/5/6/7/8/9

Micropower µP Reset with Watchdog Timer

10 3510.2004.08.1.4

Ordering Information

Note: Sample stock is held on part numbers listed in bold.

Note 1: XYY = date and assembly code.

Package Marking1Part Number (Tape and Reel)

SOT23-5 HVXYY AAT3510IGV-2.63-C-C-T1

SOT23-5 HUXYY AAT3510IGV-2.93-C-C-T1

SOT23-5 HGXYY AAT3510IGV-3.08-C-C-T1

SOT23-5 HHXYY AAT3510IGV-4.38-C-C-T1

SOT23-5 EWXYY AAT3511IGV-2.63-C-C-T1

SOT23-5 MYXYY AAT3512IGV-2.63-A-C-T1

SOT23-5 JOXYY AAT3512IGV-2.63-C-C-T1

SOT23-5 HFXYY AAT3513IGV-2.63-C-C-T1

SOT23-5 HEXYY AAT3515IGV-2.63-C-T1

SOT23-5 HIXYY AAT3515IGV-2.93-B-T1

SOT23-5 KLXYY AAT3515IGV-2.93-C-T1

SOT23-5 JNXYY AAT3515IGV-3.08-C-T1

SOT23-5 KMXYY AAT3515IGV-4.38-C-T1

SOT23-5 MFXYY AAT3515IGV-4.63-C-T1

SOT23-5 INXYY AAT3517IGV-2.63-C-C-T1

SOT23-5 LZXYY AAT3517IGV-2.8-B-C-T1

SOT23-5 IQXYY AAT3517IGV-2.93-C-C-T1

Package Information

SOT23-5

All dimensions in millimeters.

4° ± 4°

0.15 ± 0.07

0.45 ± 0.15 0.10 BSC

1.20

0.25

1.575 ± 0.125

2.80 ± 0.20

0.40

0.10

0.60 REF

2.85 ± 0.15

1.90 BSC

0.95

BSC

1.10

0.20

10°

5°

GAUGE PLANE

0.075

0.60 REF

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Micropower µP Reset with Watchdog Timer

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AAT3510/1/2/3/4/5/6/7/8/9

Micropower µP Reset with Watchdog Timer

12 3510.2004.08.1.4

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Phone (408) 737-4600

Fax (408) 737-4611

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other quality control techniques are utilized to the extent AnalogicTech deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily

performed.