STM1061资料

Low Power Voltage Detector

Features

■■■■■■■■■

Figure 1.PackagesFactory-trimmed Voltage Thresholds in 0.1V Increments from 1.6 to 5.5V±2% Voltage Threshold AccuracyOperating Voltage 0.7 to 6.0VOpen Drain Output

Low Supply Current of 0.9µA (typ)

Guaranteed OUT Assertion Down to VCC = 0.7VPower Supply Transient Immunity

Available in SOT23-3 and SOT323-3 (SC70-3) packages

Operating Temperature –40 to 85°C.

SOT323-3, SC70-3 (W) (1)SOT23-3 (WX)1.Contact local sales office for availability.

July 2006 Rev 41/23

www.st.com

1ContentsSTM1061

Contents

12

Summary Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.12.22.3

OUT (Open Drain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.13.2

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Negative-Going VCC Transients and Undershoot . . . . . . . . . . . . . . . . . . . . 8

4567

Typical Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Maximum Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13DC and AC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Package Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Part Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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STM1061List of tables

List of tables

Table 1.Table 2.Table 3.Table 4.Table 5.Table 6.Table 7.Table 8.Table 9.Table 10.

Signal Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Operating and AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14DC and AC Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16SOT23-3 – 3-lead Small Outline Transistor Package Mechanical Data. . . . . . . . . . . . . . . 18SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Mechanical Data . . . . . . 19Ordering Information Scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Factory-Trimmed Thresholds with Marking Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Document Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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List of figuresSTM1061

List of figures

Figure 1.Figure 2.Figure 3.Figure 4.Figure 5.Figure 6.Figure 7.Figure 8.Figure 9.Figure 10.Figure 11.Figure 12.Figure 13.Figure 14.Figure 15.Figure 16.Figure 17.Figure 18.

Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Logic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5SOT23-3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5SOT323-3 (SC70-3) Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6N-Channel Open Drain Output Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6STM1061N Active-Low, Open Drain Hardware Hookup. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Supply Current vs. Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Supply Current vs. Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Output Detect Delay Time vs. Ambient Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Output Release Delay Time vs. Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Maximum Transient Duration vs. Reset Threshold Overdrive . . . . . . . . . . . . . . . . . . . . . . 11Detect, Release Voltage vs. Ambient Temperature for VTH– = 3.4V . . . . . . . . . . . . . . . . . 11N-channel Driver Output Current vs. VDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12N-channel Driver Output Current vs. Input Voltage for VDS = 0.5V . . . . . . . . . . . . . . . . . . 12AC Testing Input/Output Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Voltage Timing Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15SOT23-3 – 3-lead Small Outline Transistor Package Outline. . . . . . . . . . . . . . . . . . . . . . . 17SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Outline. . . . . . . . . . . . . . 19

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STM1061Summary Description

1 Summary Description

The STM1061 low power voltage detector provides monitoring of battery, power-supply, and

regulated system voltages. A precision voltage reference and comparator monitors the VCC input and compares it with a specified voltage threshold condition. When VCC falls below a specified trip point threshold, the output (OUT) is forced low and remains asserted as long as the VCC input remains below VTH– + hysteresis (VHYST). The STM1061 device is

guaranteed to output the correct logic state for VCC down to 0.7V. They are also designed to ignore fast transients on VCC.

This small, low power device is ideal for portable applications and is available in space-saving SOT23-3 and SOT323-3 (SC70-3) packages.Figure 2.Logic DiagramVCCSTM1061OUTVSSAI10477

Table 1.

OUTVCCVSS

Signal Names

Open Drain Active-Low OutputSupply VoltageGround

Figure 3.SOT23-3 ConnectionsOUTVSS123VCCAI10478 5/23

Summary Description

Figure 4.SOT323-3 (SC70-3) ConnectionsSTM1061

VSSOUT123VCCAI10479Figure 5.N-Channel Open Drain Output Block DiagramVCCOUT+–R2VREFR1VSSR3AI10482Figure 6.STM1061N Active-Low, Open Drain Hardware HookupDC/DCConverterVINVOUTVSSR3.6V+STM1061N(Open Drain)VCCVSSOUTVOUTVCCMCUSuspendVSSRegulated 3VAI10484a6/23

STM1061Pin Descriptions

2 Pin Descriptions

See Figure2 on page5 and Table1 on page5 for a brief overview of the signals connected

to this device.

2.1 OUT (Open Drain)This is the Open Drain Output. It goes low when VCC drops below VTH–, and remains low as long as VCC is below VTH– + VHYST.

2.2 VCC

This is the Supply voltage and input for the Voltage Detector.

2.3 VSS

Ground, VSS, is the reference for the power supply. It must be connected to the system ground.Table 2.

Pin Functions

Pin

SOT23-3

132

SOT323-3 (SC70-3)

231

Name

Function

OUTVCCVSS

Active-Low Open Drain OutputSupply VoltageGround

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OperationSTM1061

3 Operation

3.1 Output

The STM1061 Voltage Detector monitors system voltages from 1.6 to 5V in 100mV

increments. The detector is designed to ignore fast transients on VCC and has a voltage hysteresis (VHYST). The STM1061 asserts an output signal (OUT) whenever VCC goes below the Voltage Detect Threshold (VTH–). The output signal (OUT) stays asserted until VCC goes above the Voltage Detect Release (VTH+). Output voltage (VOUT) is guaranteed valid down to VCC =0.7V at 25°C.

The STM1061has an open drain active-low output which will sink current when output is asserted. Connect a pull-up resistor from OUT to any supply voltage up to 6V (see Figure6 on page6). Select a resistor value large enough to register a logic low, and small enough to register a logic high while all of the input current and leakage paths connected to the reset output line are being supplied. A 10k pull-up is sufficient in most applications.

The advantages of open drain output is the ability to connect more open drain outputs in parallel (wired OR connections) as well as connect the output to a power supply voltage different from VCC.

3.2 Negative-Going VCC Transients and Undershoot

The STM1061 device is relatively immune to negative-going VCC transients (glitches). The

graph (see Figure11 on page11) indicates the maximum pulse width a negative VCC transient can have without causing a reset pulse. As the magnitude of the transient

increases (further below the threshold), the maximum allowable pulse width decreases. Any combination of duration and overdrive which lies under the curve will NOT generate a reset signal.

A 0.1µF bypass capacitor mounted as close as possible to the VCC pin provides additional transient immunity.

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STM1061Typical Operating Characteristics

4 Typical Operating Characteristics

Figure 7.1400Supply Current vs. Input Voltage12001000ICC (nA)800600Temp = –40°CTemp = 25°C200Temp = 85°C40000123456AI11119bVCC (V)

Figure 8.1250Supply Current vs. Ambient TemperatureSupply Current: ICC (nA)1000750500VCC = 5VVCC = 3VVCC = 2V2500-40-20020406080AI11120bAmbient Temperature (°C) 9/23

Typical Operating CharacteristicsFigure 9.Output Detect Delay Time vs. Ambient TemperatureSTM1061

35.00VCC-to-OUT Detect Delay: tPD (µs)30.00VTH– = 3.4V25.0020.0015.00VTH– = 1.6V10.005.000.00–40–20020406080AI11121bAmbient Temperature: TA (°C)

Figure 10.Output Release Delay Time vs. Ambient Temperature50.0045.00VCC-to-OUT Release Delay: tPR (µs)40.00VTH+ = 3.57V35.0030.0025.0020.0015.00VTH+ = 1.68V10.005.000.00–40–20020406080AI11122bAmbient Temperature: TA (°C)10/23

STM1061Typical Operating Characteristics

Figure 11.Maximum Transient Duration vs. Reset Threshold Overdrive160140Transient Duration (µs)120100806040200110100VTH– = 3.4VVTH– = 1.6V100010000AI11123bThreshold Overdrive (mV)1.Reset occurs above the curve.

Figure 12.Detect, Release Voltage vs. Ambient Temperature for VTH– = 3.4V3.6Detect, Release Voltage: VTH–, VTH+ (V)3.5Detect Voltage, VTH–Release Voltage, VTH+3.43.3–40–20020406080AI11124bAmbient Temperature (°C) 11/23

Typical Operating Characteristics

Figure 13.N-channel Driver Output Current vs. VDS STM1061

0.06VCC = 3.3VVCC = 3.0VVCC = 2.7VVCC = 2.1VVCC = 1.5V0.03VCC = 1.0V0.05Output Current: ID (A)0.040.020.01000.250.50.7511.251.5AI11125bOutput Voltage: VDS (V)

Figure 14.N-channel Driver Output Current vs. Input Voltage for VDS = 0.5V3025Output Current: IOUT (mA)Temp. (25°C)20Temp. (85°C)Temp. (–40°C)15105000.511.522.53AI11126bInput Voltage: VCC (V)12/23

STM1061Maximum Rating

5 Maximum Rating

Stressing the device above the rating listed in the Table3: Absolute Maximum Ratings may

cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents.Table 3.

SymbolTSTGTSLD(1)VIOVCCIOPD

Absolute Maximum Ratings

Parameter

Storage Temperature (VCC Off, VBAT Off)Lead Solder Temperature for 10 secondsInput or Output VoltageSupply VoltageOutput CurrentPower Dissipation

Value–55 to 150

260–0.3 to VCC +0.3–0.3 to 7.0

20320

Unit°C°CVVmAmW

1.Reflow at peak temperature of 260°C (total thermal budget not to exceed 245°C for greater than 30

seconds).

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DC and AC ParametersSTM1061

6 DC and AC Parameters

This section summarizes the operating measurement conditions, and the DC and AC

characteristics of the device. The parameters in the DC and AC characteristics Tables that follow, are derived from tests performed under the Measurement Conditions summarized in Table4: Operating and AC Measurement Conditions. Designers should check that the operating conditions in their circuit match the operating conditions when relying on the quoted parameters.Table 4.

Operating and AC Measurement Conditions

STM1061 Unit0.7 to 6.0 –40 to 85 ≤ 050.2 to 0.8VCC 0.3 to 0.7VCC

V°CnsV V

Sym Parameter VCCTA

Supply Voltage

Ambient Operating Temperature Input Rise and Fall Times Input Pulse Voltages

Input and Output Timing Ref. Voltages

Figure 15.AC Testing Input/Output Waveforms0.8VCC0.7VCC0.3VCCAI025680.2VCC

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STM1061

Figure 16.Voltage Timing WaveformVCCVTH+VTH–VCC (min)VSSDC and AC Parameters

Release Voltage (VTH+ = VTH– + VHYST)Detect VoltageVOUTtPDDetect DelayVSStPRRelease DelayAI10483 15/23

DC and AC ParametersTable 5.

Sym.VCCICC

STM1061

DC and AC Characteristics

Description

Operating VoltageVCC Supply Current

VCC = 3.0V, No LoadVCC = 5.5V, No Load

VCC = 1.0V

1.03.05.06.07.0

VCC = 2.0VVCC = 3.0VVCC = 4.0VVCC = 5.0VTest Condition (1)

Min0.7

0.91.11.714222630Typ

Max6.03.03.6

UnitVµAµAmAmAmAmAmA

IOUT

Output Current, N-channel(VDS = 0.5V),Reset asserted

Voltage ThresholdsVTH–VTH+VHYSTtPD

Detect Voltage (2)(see Table9 on page21 for detailed listing)Release VoltageThreshold Hysteresis

VCC falling from (VTH– + 100mV) to (VTH– –

100mV)at 10mV/µsVCC rising from (VTH+ – 100mV) to (VTH+ +

100mV)at 10mV/µs

0.02VTH–VTH– – 2%

VTH–VTH– + VHYST0.05VTH–

25

0.08VTH–VTH– + 2%

V

VV

VCC to OUT Detect Delayµs

tPRVCC to OUT Release DelayThreshold Temperature Coefficient

30200µs

±100

ppm/oC

1.Valid for Ambient Operating Temperature: TA = 25°C.

2.Other VTH- threshold are offered. Minimum order quantities may apply. Contact local sales office for availability.

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STM1061Package Mechanical

7 Package Mechanical

In order to meet environmental requirements, ST offers these devices in ECOPACK®

packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97.

The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.Figure 17.SOT23-3 – 3-lead Small Outline Transistor Package OutlineEE1B0.15MCABA11ee1D0.20MCAB3XA0.10CCA2A3X bCθL1CLSOT23-31.Drawing is not to scale.

17/23

Package Mechanical

Table 6.

Symbol

Typ

AA1A2bCDEE1ee1LL1QN

0.

0.400°3

0.608°

Min0.0.010.880.300.082.802.101.200.1.78

Max1.120.101.020.500.203.042.1.401.032.05

0.021

0.0160°3

Typ

Min0.0350.0010.0350.0120.0030.1100.0830.0470.0350.070

STM1061

SOT23-3 – 3-lead Small Outline Transistor Package Mechanical Data

mm

inches

Max0.0440.0040.0420.0200.0080.1200.1040.0550.0410.0810.0248°

18/23

STM1061Package Mechanical

Figure 18.SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package OutlineEE1B0.30MCABA11e1eD0.10MCAB3XA0.10CCA2A3X bθ1CθL1CLSOT323-31.Drawing is not to scale.

Table 7.

SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Mechanical Data

mm

inches

Max1.100.101.000.400.182.202.401.35

Typ

Min0.0310.0000.0310.0100.0040.0710.0710.0450.0260.051

0.450.3030°12°

0.0140.0040°8°3

0.0180.01230°12°Max0.0430.0040.0390.0160.0070.0870.0940.053

Symbol

Typ

AA1A2bCDEE1ee1LL1QΘ1N

Min0.800.000.800.250.101.801.801.150.651.300.350.100°8°3

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Part NumberingSTM1061

8 Part Numbering

Table 8.

Example:Device TypeSTM1061Output Type

N = Open Drain (Active-Low)Threshold Voltage (1)xx = See Table9 on page21PackageWX = SOT23-3

W = SOT323-3 (SC70-3) (1)Temperature Range6 = –40 to 85°CShipping Method

F = ECOPACK Package, Tape & Reel

Ordering Information Scheme

STM1061

N

xx

WX

6

F

1.Other thresholds voltage options are offered. Minimum order quantities may apply. Contact local

sales office for availability.

For other options, or for more information on any aspect of this device, please contact the ST Sales Office nearest you.

20/23

STM1061

Table 9.

Suffix161719212223252627282930313438

Part Numbering

Factory-Trimmed Thresholds with Marking Description

Threshold Voltage VTH– (V) at TA = 25°C (1)Min (–2%)1.5681.6661.8622.0582.1562.22.4502.82.62.7442.8422.9403.0383.3323.724

Typ1.6001.7001.9002.1002.2002.3002.5002.6002.7002.8002.9003.0003.1003.4003.800

Max (+2%)1.6321.7341.9382.1422.2442.3462.5502.6522.72.8562.9583.0603.1623.4683.876

16Nx17Nx19Nx21Nx22Nx23Nx25Nx26Nx27Nx28Nx29Nx30Nx31Nx34Nx38NxTopside Marking

1.Other VTH- thresholds are offered. Minimum order quantities may apply. Contact local sales office for

availability.

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Revision HistorySTM1061

9 Revision History

Table 10.

Date20-January-200401-Aug-05

Document Revision History

Version1.0

First Edition

Update Operation section, characteristics; insert new graphics; add

ECOPACK information ( Figure7, 8, 9, 10, 11, 12, 13, and 14; Table Table5, 8, and 9)

Update characteristics, remove ‘push-pull output’ reference (Figure8, 9, 10, 11, 12, and 16; Table Table2, , 5, and 8)Status upgrade; update characteristics; add Marking information (Figure7, 8, 9, 10, 11, 12, 13, and 14; Table Table8, and 9)Update characteristics (Table3, and 4)

Update Chapter: Features, Figure1, 5, 6, Table8 and 9.

Description

1.1

02-Sep-0519-Oct-0518-Nov-0527-Jul-2006

1.22.03.04

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STM1061

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