Texas Instruments TPS3619-33-EP, TPS3619-50-EP, TPS3620-33-EP, TPS3620-50-EP Datasheet

V

BAT

RESET
MR
PFO

8
7
6
5

1
2
3
4

V

OUT

V

DD

GND

PFI

DGK PACKAGE

(TOP VIEW)

ACTUAL SIZE

3,05 mm x 4,98 mm

TPS3619-33-EP, TPS3619-50-EP
TPS3620-33-EP, TPS3620-50-EP

www.ti.com

SGLS350C –JULY 2006–REVISED SEPTEMBER 2010

BACKUP-BATTERY SUPERVISORS FOR RAM RETENTION

Check for Samples: TPS3619-33-EP, TPS3619-50-EP, TPS3620-33-EP, TPS3620-50-EP

1

FEATURES

• Supply Current of 40 mA (Max)

• Battery-Supply Current of 100 nA (Max)

• Precision Supply-Voltage Monitor 3.3 V, 5 V,
and Other Options on Request

• Backup-Battery Voltage Can Exceed V

DD

• Power-On Reset Generator with Fixed 100-ms
Reset Delay Time

• Voltage Monitor for Power-Fail or Low-Battery
Monitoring

• Battery Freshness Seal (TPS3619)

• Pin-to-Pin Compatible With MAX819, MAX703,
and MAX704

• 8-Pin Mini Small-Outline Package (MSOP)
Package

SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS

• Controlled Baseline

• One Assembly/Test Site

• One Fabrication Site

• Available in Military (–55°C/125°C)
Temperature Range

• Extended Product Life Cycle

• Extended Product-Change Notification

• Product Traceability

(1) Additional temperature ranges available - contact factory of –55°C to 125°C.

(1)

APPLICATIONS

• Fax Machines

• Set-Top Boxes

• Advanced Voice-Mail Systems

• Portable Battery-Powered Equipment

• Computer Equipment

• Advanced Modems

• Automotive Systems

• Portable Long-Time Monitoring Equipment

• Point-of-Sale Equipment

DESCRIPTION

The TPS3619 and TPS3620 families of supervisory
circuits monitor and control processor activity by
providing backup-battery switchover for data retention
of CMOS RAM.

During power on, RESET is asserted when the
supply voltage (VDDor V
V. Thereafter, the supply voltage supervisor monitors
VDDand keeps RESET output active as long as V
remains below the threshold voltage (VIT). An internal
timer delays the return of the output to the inactive
state (high) to ensure proper system reset. The delay
time starts after VDDhas risen above VIT. When the
supply voltage drops below VIT, the output becomes
active (low) again.

The product spectrum is designed for supply voltages
of 3.3 V and 5 V. The TPS3619 and TPS3620 are
available in an 8-pin MSOP package and are
characterized for operation over a temperature range

) becomes higher than 1.1

BAT

DD

1

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright © 2006–2010, Texas Instruments Incorporated

V

DD

V

BAT

PFI

Backup
Battery

RESET

PFO

V

OUT

GND

R

x

R

y

External

Source

0.1 µF

Power

Supply

GND

RESET

I/O

V

CC

Switchover

Capacitor

0.1 µF

TPS3619
TPS3620

Microcontroller

or

Microprocessor

Manual

Reset

MR

Reel

Nominal Supply Voltage

Package

Functionality

Family

DGK EP

R

Temperature Range

Designator

TPS361 9 33 M

TPS3619-33-EP, TPS3619-50-EP
TPS3620-33-EP, TPS3620-50-EP

SGLS350C –JULY 2006–REVISED SEPTEMBER 2010

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

www.ti.com

TYPICAL OPERATING CIRCUIT

PACKAGE INFORMATION

T

A

–55°C to 125°C

(1) For the most current specifications and package information, see the Package Option Addendum located at the end of this data sheet or

see the TI web site at www.ti.com.

(2) Product Preview. Parameters in electrical characteristics are subject to change.

PRODUCT ORDERABLE PART NUMBER

TPS3619-33 BZP

TPS3619-50 TBD

TPS3620-33 BTY

TPS3620-50 TBD

PACKAGE TRANSPORT MEDIA,

MARKING QUANTITY

(1)

TPS3619-33MDGKEP

TPS3619-33MDGKREP Tape and reel, 2500

TPS3619-50MDGK

TPS3619-50MDGKREP

TPS3620-33MDGKTEP Tape and reel, 250

TPS3620-33MDGKREP Tape and reel, 2500
TPS3620-50MDGKTEP
TPS3620-50MDGKREP

(2)

(2)

(2)

(2)
(2)

Tube, 80

Tube, 80

Tape and reel, 2500

Tape and reel, 250

Tape and reel, 2500

2 Submit Documentation Feedback Copyright © 2006–2010, Texas Instruments Incorporated

Standard and Application-Specific Versions

DEVICE NAME NOMINAL VOLTAGE

TPS3619-33 DGK 3.3 V
TPS3619-50 DGK 5 V
TPS3620-33 DGK 3.3 V
TPS3620-50 DGK 5 V

Product Folder Link(s): TPS3619-33-EP TPS3619-50-EP TPS3620-33-EP TPS3620-50-EP

(1) For other threshold voltage versions, contact the local TI sales

office for availability and lead time.

(1)

, V

NOM

TPS3619-33-EP, TPS3619-50-EP
TPS3620-33-EP, TPS3620-50-EP

www.ti.com

SGLS350C –JULY 2006–REVISED SEPTEMBER 2010

Absolute Maximum Ratings

over operating free-air temperature (unless otherwise noted)

(2)

V

Supply voltage

Continuous output current, I

O

Continuous total power dissipation See Dissipation Ratings Table
Operating free-air temperature range, T
Storage temperature range, T

stg

A

Lead temperature soldering 1,6 mm (1/16 in) from case for 10 s 260°C

(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) All voltage values are with respect to GND. For reliable operation, the device must not be continuously operated at 7 V for more than

t = 1000 h.

DD

MR and PFI pins
V

OUT

All other pins

(1)

UNIT

7 V

(2)

–0.3 V to (VDD+ 0.3 V)

400 mA

(2)

±10 mA

–55°C to 125°C
–65°C to 150°C

Dissipation Ratings

PACKAGE

DGK 470 mW 3.76 mW/°C 301 mW 241 mW 93.98 mW

TA< 25°C DERATING FACTOR TA= 70°C TA= 85°C TA= 125°C

POWER RATING ABOVE TA= 25°C POWER RATING POWER RATING POWER RATING

Recommended Operating Conditions

at specified temperature range

V

DD

V

BAT

V

I

V

IH

V

IL

I

O

Δt/ΔV Slew rate at VDDor V
T

A

Supply voltage 1.65 5.5 V
Battery supply voltage 1.5 5.5 V
Input voltage 0 VDD+ 0.3 V
High-level input voltage 0.7 × V
Low-level input voltage 0.3 × V
Continuous output current at V

OUT

Input transition rise and fall rate at MR 100 ns/V

BAT

Operating free-air temperature –55 125 °C

MIN MAX UNIT

DD

V
V

DD

300 mA

1 V/ms

Copyright © 2006–2010, Texas Instruments Incorporated Submit Documentation Feedback 3

Product Folder Link(s): TPS3619-33-EP TPS3619-50-EP TPS3620-33-EP TPS3620-50-EP

TPS3619-33-EP, TPS3619-50-EP
TPS3620-33-EP, TPS3620-50-EP

SGLS350C –JULY 2006–REVISED SEPTEMBER 2010

www.ti.com

Electrical Characteristics

over recommended operating conditions (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

RESET

V

High-level output voltage VDD= 1.8 V, IOH= –20 mA VDD– 0.3 V

OH

PFO VDD= 3.3 V, IOH= –80 mA VDD– 0.4

V

V

Low-level output voltage RESET, PFO VDD= 3.3 V, IOL= 2 mA 0.4 V

OL

Power-up reset voltage

res

(1)

Normal mode VDD– 150

V

OUT

Battery-backup mode

r

DS(on)

V

IT–

V

PFI

V

hys

VDDto V
V

BAT

Negative-going input threshold
voltage

Hysteresis 3.5 V < VIT< 5.5 V 60 mV

on resistance VDD= 5 V 0.6 1

OUT

to V

on resistance VDD= 3.3 V 8 20

OUT

TPS36XX-33 2.88 2.93 3.05

(2)

TPS36XX-50 4.46 4.55 4.64

V

IT

PFI 12

(3)

VBSW
I
I
I

I

I

I

C

High-level input current MR MR = 0.7 × VDD, VDD= 5 V –30 –76 mA

IH

Low-level input current MR MR = 0 V, VDD= 5 V –110 –255 mA

IL

Input current PFI –25 25 nA

I

Short-circuit current PFO PFO = 0 V VDD= 3.3 V –1.1 mA

OS

VDDsupply current mA

DD

(BAT)VBAT

I

supply current mA

Input capacitance VI= 0 V to 5 V 5 pF

(1) The lowest supply voltage at which RESET becomes active. t
(2) To ensure the best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1 mF) should be placed near the supply terminals.
(3) For VDD< 1.6 V, V

switches to V

OUT

, regardless of V

BAT

VDD= 3.3 V, IOH= –2 mA VDD– 0.4
VDD= 5 V, IOH= –3 mA VDD– 0.4

VDD= 5 V, IOH= –120 mA VDD– 0.4
VDD= 1.8 V, IOL= –400 mA 0.2

VDD= 5 V, IOL= 3 mA 0.4
IOL= 20 mA, V

VDD> 1.1 V
I

= 8.5 mA, V

OUT

VDD= 1.8 V
I

= 125 mA, V

OUT

VDD= 3.3 V
I

= 190 mA, V

OUT

VDD= 5 V
I

= 0.5 mA, V

OUT

VDD= 0 V
I

= 7.5 mA, V

OUT

> 1.1 V or

BAT

= 0 V,

BAT

= 0 V,

BAT

= 0 V, mV

BAT

= 1.5 V,

BAT

= 3.3 V V

BAT

VDD– 50

VDD– 200

V

– 50

BAT

– 150

BAT

0.4 V

TA= –55°C to 125°C V

TA= –55°C to 125°C 1.13 1.15 1.185 V

1.65 V < VIT< 2.5 V 20

2.5 V < VIT< 3.5 V 40

VDD= 1.8 V 55

VDD= 1.8 V –0.3

VDD= 5 V –2.4

V

= V

OUT

DD

V

= V

OUT

BAT

V

= V

OUT

DD

V

= V

OUT

BAT

≥ 15 ms/V.

r,VDD

.

BAT

–0.1 0.1

40
40

0.5

Ω

4 Submit Documentation Feedback Copyright © 2006–2010, Texas Instruments Incorporated

Product Folder Link(s): TPS3619-33-EP TPS3619-50-EP TPS3620-33-EP TPS3620-50-EP

V

IT

V

BAT

V

DD

V

OUT

RESET

t

d

t

t

t

t

d

TPS3619-33-EP, TPS3619-50-EP
TPS3620-33-EP, TPS3620-50-EP

www.ti.com

SGLS350C –JULY 2006–REVISED SEPTEMBER 2010

Timing Requirements

at RL= 1 MΩ, CL= 50 pF, TA= 25°C

PARAMETER TEST CONDITIONS MIN MAX UNIT

t

w

Pulse width

at V

DD

at MR VDD= VIT+ 0.2 V, VIL= 0.3 x VDD, VIH= 0.7 × V

VIH= VIT+ 0.2 V, VIL= VIT– 0.2 V 6 ms

DD

100 ns

Switching Characteristics

at RL= 1 MΩ, CL= 50 pF, TA= –55°C to 125°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

t

Delay time 60 100 140 ms

d

VDDto RESET VIL= VIT– 0.4 V, VIH= VIT+ 0.4 V 2 5

Propagation (delay) time, PFI to PFO delay VIL= V

t

PHL

high-to-low-level output

MR to RESET 0.1 1

VDD≥ VIT+ 0.2 V, MR ≥ 0.7 × VDD,
See timing diagram

– 0.35 V, VIH= V

PFI

PFI

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

DD

Timing Diagram

+ 0.35 V 3 5

ms

Copyright © 2006–2010, Texas Instruments Incorporated Submit Documentation Feedback 5

Product Folder Link(s): TPS3619-33-EP TPS3619-50-EP TPS3620-33-EP TPS3620-50-EP

TPS3619-33-EP, TPS3619-50-EP
TPS3620-33-EP, TPS3620-50-EP

SGLS350C –JULY 2006–REVISED SEPTEMBER 2010

Table 1. FUNCTION TABLE

VDD> V

0 0 L V
0 0 H V
0 1 L V
0 1 H V
1 0 L V
1 0 H V
1 1 L V
1 1 H V

IT

VDD> V

BAT

PFI > V

PFI

0 L
1 H

CONDITION: VDD> VDD(MIN)

TERMINAL FUNCTIONS

TERMINAL

NAME NO.

GND 3 I Ground
MR 6 I Manual reset
PFI 4 I Power-fail comparator input
PFO 5 O Power-fail comparator output
RESET 7 O Active-low reset
V

BAT

V

DD

V

OUT

8 I Backup battery
2 I Supply input voltage
1 O Supply output voltage

I/O DESCRIPTION

MR V

PFO

OUT

BAT
BAT

DD
DD
DD
DD
DD
DD

www.ti.com

RESET

L
L
L
L
L

H

L

H

6 Submit Documentation Feedback Copyright © 2006–2010, Texas Instruments Incorporated

Product Folder Link(s): TPS3619-33-EP TPS3619-50-EP TPS3620-33-EP TPS3620-50-EP