Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - system monitor Reserve capacity circuit VSSOP 8

FEATURES

DESCRIPTION

APPLICATIONS

BAT

RESET

PFO

OUT

GND

PFI

DGK PACKAGE

(TOP VIEW)

ACTUAL SIZE

3,05 mm x 4,98 mm

TYPICAL OPERATING CIRCUIT

BAT

PFI

Backup

Battery

RESET

PFO

OUT

GND

External

Source

0.1 µF

Power

Supply

GND

RESET

I/O

Switchover

Capacitor

0.1 µF

TPS3619

TPS3620

Microcontroller

Microprocessor

Manual

Reset

TPS3619-33 , , TPS3619-50

TPS3620-33 , TPS3620-50

SLVS387H – APRIL 2001 – REVISED DECEMBER 2007

www.ti.com

BACKUP-BATTERY SUPERVISORS FOR RAM RETENTION

• Supply Current of 40 µ A (Max)

• Battery-Supply Current of 100 nA (Max)

The TPS3619 and TPS3620 families of supervisory

circuits monitor and control processor activity by

• Precision Supply Voltage Monitor 3.3 V, 5 V,

providing backup-battery switchover for data retention

Other Options on Request

of CMOS RAM.

• Backup-Battery Voltage Can Exceed V

During power on, RESET is asserted when the

• Power On Reset Generator With Fixed 100-ms

supply voltage (V

or V

BAT

) becomes higher than 1.1

Reset Delay Time

V. Thereafter, the supply voltage supervisor monitors

• Voltage Monitor For Power-Fail or Low-Battery

and keeps RESET output active as long as V

Monitoring

remains below the threshold voltage (V

). An internal

timer delays the return of the output to the inactive

• Battery Freshness Seal (TPS3619)

state (high) to ensure proper system reset. The delay

• Pin-For-Pin Compatible With MAX819,

time starts after V

has risen above V

. When the

MAX703, and MAX704

supply voltage drops below V

IT,

the output becomes

• 8-Pin MSOP Package

active (low) again.

• Temperature Range – 40 ° C to +85 ° C

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

• Fax Machines

of – 40 ° C to +85 ° C.

• 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

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.

2 All trademarks are the property of their respective owners.

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.

Summary of content (17 pages)

PAGE 1
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 BACKUP-BATTERY SUPERVISORS FOR RAM RETENTION FEATURES 1 DESCRIPTION • Supply Current of 40 µA (Max) • Battery-Supply Current of 100 nA (Max) • Precision Supply Voltage Monitor 3.
PAGE 2
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 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.
PAGE 3
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 RECOMMENDED OPERATING CONDITIONS At specified temperature range. MIN Supply voltage, VDD Battery supply voltage, VBAT Input voltage, VI High-level input voltage, VIH MAX UNIT 1.65 5.5 V 1.5 5.5 V 0 VDD + 0.3 V 0.7 x VDD V Low-level input voltage, VIL 0.
PAGE 4
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 ELECTRICAL CHARACTERISTICS (continued) Over recommended operating conditions (unless otherwise noted). PARAMETER TEST CONDITIONS IIH High-level input current IIL Low-level input current II Input current PFI IOS Short-circuit current PFO IDD VDD supply current I(BAT) VBAT supply current Ci Input capacitance MR MR = 0.
PAGE 5
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 TIMING DIAGRAM VBAT VDD VIT t VOUT t RESET td td t Table 1. FUNCTION TABLE VDD > VIT VDD > VBAT MR VOUT RESET 0 0 0 VBAT 0 0 0 1 VBAT 0 0 1 0 VDD 0 0 1 1 VDD 0 1 0 0 VDD 0 1 0 1 VDD 1 1 1 0 VDD 0 1 1 1 VDD 1 PFI > VPFI PFO 0 0 1 1 CONDITION.
PAGE 6
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 Table 2. TERMINAL FUNCTIONS TERMINAL NAME I/O NO.
PAGE 7
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 TYPICAL CHARACTERISTICS − Static Drain-Source On-State Resistance − Ω 500 VDD = 3.3 V VBAT = GND 900 TA = 85°C 800 TA = 25°C 700 TA = 0°C TA = −40°C 600 50 75 100 125 150 175 200 IO − Output Current − mA VIT − Normalized Threshold Voltage at RESET − V I DD − Supply Current − µ A or VDD Mode VBAT = GND TA = 0°C TA = −40°C 10 5 0 1 15 TA = 85°C 12.5 TA = 25°C TA = 0°C 10 7.5 5 2.
PAGE 8
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 TYPICAL CHARACTERISTICS (continued) HIGH-LEVEL OUTPUT VOLTAGE AT RESET vs HIGH-LEVEL OUTPUT CURRENT HIGH-LEVEL OUTPUT VOLTAGE AT RESET vs HIGH-LEVEL OUTPUT CURRENT 5.1 VDD = 5 V VBAT = GND VOH − High-Level Output Voltage at RESET − V VOH − High-Level Output Voltage at RESET − V 6 5 TA = −40°C TA = 25°C 4 TA = 0°C 3 2 TA = 85°C 1 0 Expanded View 5 TA = −40°C 4.9 TA = 0°C 4.8 4.7 TA = 85°C 4.
PAGE 9
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 TYPICAL CHARACTERISTICS (continued) LOW-LEVEL OUTPUT VOLTAGE AT RESET vs LOW-LEVEL OUTPUT CURRENT 3.5 500 VDD = 3.3 V VBAT = GND 3 VOL − Low-Level Output Voltage at RESET − mV VOL − Low-Level Output Voltage at RESET − V LOW-LEVEL OUTPUT VOLTAGE AT RESET vs LOW-LEVEL OUTPUT CURRENT 2.5 TA = 0°C 2 TA = 25°C 1.5 TA = 85°C 1 TA = −40°C 0.
PAGE 10
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 DETAILED DESCRIPTION Battery Freshness Seal (TPS3619) The battery freshness seal of the TPS3619 family disconnects the backup-battery from internal circuitry until it is needed. This function prevents the backup-battery from being discharged unitl the final product is put to use. The following steps explain how to enable the freshness seal mode. 1. Connect VBAT (VBAT > VBAT min) 2. Ground PFO 3.
PAGE 11
TPS3619-33,, TPS3619-50 TPS3620-33, TPS3620-50 www.ti.com VDD – Normal Supply Voltage – V SLVS387H – APRIL 2001 – REVISED DECEMBER 2007 VDD Mode VIT Hysteresis VBAT Mode VBSW Hysteresis Undefined VBAT – Backup-Battery Supply Voltage – V Figure 13.
PAGE 12
PACKAGE OPTION ADDENDUM www.ti.
PAGE 13
PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details.
PAGE 14
PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS3619-33DGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TPS3619-50DGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TPS3620-33DGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.
PAGE 15
PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS3619-33DGKR VSSOP DGK 8 2500 358.0 335.0 35.0 TPS3619-50DGKR VSSOP DGK 8 2500 358.0 335.0 35.0 TPS3620-33DGKR VSSOP DGK 8 2500 358.0 335.0 35.0 TPS3620-33DGKT VSSOP DGK 8 250 358.0 335.0 35.0 TPS3620-50DGKR VSSOP DGK 8 2500 358.0 335.0 35.0 TPS3620-50DGKT VSSOP DGK 8 250 358.0 335.0 35.
PAGE 16
PAGE 17
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.