Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - system monitor Dual voltage detector SOT 23 6

www.ti.com

FEATURES DESCRIPTION

(TOP VIEW)

RSTSENSE

GND

RESET

HSENSE

TPS3806

DBV PACKAGE

LSENSE

HSENSE

RESET

RSTSENSE

GND

R4 R5

3.6 V

Li-lon

Cell

TPS3806I33

Typical Operating Circuit

TPS3806J20

TPS3806I33

SLVS393A – JULY 2001 – REVISED NOVEMBER 2004

Dual Voltage Detector with Adjustable Hysteresis

• Dual Voltage Detector With Adjustable

The TPS3806 integrates two independent voltage

Hysteresis 3.3-V/Adjustable and

detectors for battery voltage monitoring. During

2-V/Adjustable

power-on, RESET and RSTSENSE are asserted

when supply voltage V

or the voltage at LSENSE

• Assured Reset at V

= 0.8 V

input become higher than 0.8 V. Thereafter, the

• Supply Current: 3 µA Typical at V

= 3.3 V

supervisory circuit monitors V

and LSENSE, keep-

• Independent Open-Drain Reset Outputs

ing RESET and RSTSENSE active as long as V

and LSENSE remain below the threshold voltage, V

• Temperature Range: -40 ° C to +85 ° C

As soon as V

or LSENSE rise above the threshold

• 6-Pin SOT-23 Package

voltage V

, RESET or RSTSENSE is deasserted,

respectively. The TPS3806 device has a fixed-sense

threshold voltage V

set by an internal voltage divider

at V

and an adjustable second-LSENSE input. In

addition, an upper voltage threshold can be set at

HSENSE to allow a wide adjustable

hysteresis window.

The devices are available in a 6-pin SOT-23 pack-

age. The TPS3806 device is characterized for oper-

ation over a temperature range of -40 ° C to +85 ° C.

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.

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 (14 pages)

PAGE 1
TPS3806J20 TPS3806I33 www.ti.com SLVS393A – JULY 2001 – REVISED NOVEMBER 2004 Dual Voltage Detector with Adjustable Hysteresis FEATURES • • • • • • DESCRIPTION Dual Voltage Detector With Adjustable Hysteresis 3.3-V/Adjustable and 2-V/Adjustable Assured Reset at VDD = 0.8 V Supply Current: 3 µA Typical at VDD = 3.3 V Independent Open-Drain Reset Outputs Temperature Range: -40°C to +85°C 6-Pin SOT-23 Package The TPS3806 integrates two independent voltage detectors for battery voltage monitoring.
PAGE 2
TPS3806J20 TPS3806I33 www.ti.com SLVS393A – JULY 2001 – REVISED NOVEMBER 2004 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
TPS3806J20 TPS3806I33 www.ti.com SLVS393A – JULY 2001 – REVISED NOVEMBER 2004 RECOMMENDED OPERATING CONDITIONS Supply voltage, VDD Input voltage, VI Operating free-air temperature range, TA MIN MAX UNIT 1.3 6 V 0 VDD + 0.3 V -40 +85 °C ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDD = 1.5 V, IOL = 1 mA VOL Low-level output voltage VDD = 3.3 V, IOL = 2 mA 0.3 V 0.
PAGE 4
TPS3806J20 TPS3806I33 www.ti.com SLVS393A – JULY 2001 – REVISED NOVEMBER 2004 VDD VIT(HSENSE) VIT(LSENSE) VIT,VDD+Vhys VIT(VDD) 0.8 V RSTSENSE RESET = Undefined Table 1. TERMINAL FUNCTIONS TERMINAL NAME NO.
PAGE 5
TPS3806J20 TPS3806I33 www.ti.com SLVS393A – JULY 2001 – REVISED NOVEMBER 2004 FUNCTIONAL BLOCK DIAGRAM TPS3806 LSENSE _ HSENSE RSTSENSE + R1 _ VDD R2 RESET + GND Reference Voltage of 1.207 V Detailed Description Operation The TPS3806 is used for monitoring battery voltage and asserting RESET when a battery gets discharged below a certain threshold voltage. The battery voltage is monitored by a comparator via an external resistor divider.
PAGE 6
TPS3806J20 TPS3806I33 www.ti.com SLVS393A – JULY 2001 – REVISED NOVEMBER 2004 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs SUPPLY VOLTAGE LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 6 1.60 V(HSENSE) < V(LSENSE) RESET = Open RSTSENSE = Open 4 3 85°C 25°C 2 0°C −40°C 1 VDD = 1.5 V V(SENSE) = Low 1.40 VOL − Low-Level Output Voltage − V I DD − Supply Current − µ A 5 1.20 85°C 1.00 25°C 0.80 0°C 0.60 −40°C 0.40 0.20 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.
PAGE 7
TPS3806J20 TPS3806I33 www.ti.com SLVS393A – JULY 2001 – REVISED NOVEMBER 2004 TYPICAL CHARACTERISTICS (continued) NORMALIZED INPUT THRESHOLD VOLTAGE vs FREE-AIR TEMPERATURE AT VDD 1 VDD = 6 V V(SENSE) = Low VOL − Low-Level Output Voltage − V 0.9 85°C 0.8 25°C 0.7 0°C 0.6 −40°C 0.5 0.4 0.3 0.2 Expanded View 0.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 22-Dec-2011 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) TPS3806I33DBVR SOT-23 DBV 6 3000 179.0 8.4 TPS3806I33DBVR SOT-23 DBV 6 3000 178.0 TPS3806I33DBVT SOT-23 DBV 6 250 178.0 TPS3806I33DBVT SOT-23 DBV 6 250 TPS3806J20DBVR SOT-23 DBV 6 TPS3806J20DBVT SOT-23 DBV 6 3.2 3.2 1.4 4.0 8.0 Q3 9.0 3.
PAGE 11
PACKAGE MATERIALS INFORMATION www.ti.com 22-Dec-2011 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS3806I33DBVR SOT-23 DBV 6 3000 203.0 203.0 35.0 TPS3806I33DBVR SOT-23 DBV 6 3000 180.0 180.0 18.0 TPS3806I33DBVT SOT-23 DBV 6 250 180.0 180.0 18.0 TPS3806I33DBVT SOT-23 DBV 6 250 203.0 203.0 35.0 TPS3806J20DBVR SOT-23 DBV 6 3000 180.0 180.0 18.0 TPS3806J20DBVT SOT-23 DBV 6 250 180.0 180.
PAGE 12
PAGE 13
PAGE 14
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.