STMICROELECTRONICS STM1061N36W6F

STM1061
Low Power Voltage Detector
FEATURES
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FACTORY-TRIMMED VOLTAGE
THRESHOLDS IN 0.1V INCREMENTS
FROM 1.6V TO 5.5V
±2% VOLTAGE THRESHOLD ACCURACY
OPERATING VOLTAGE 0.7V to 6.0V
OPEN DRAIN OUTPUT
LOW SUPPLY CURRENT - 0.9µA (typ)
GUARANTEED OUT ASSERTION DOWN
TO VCC = 0.7V
POWER SUPPLY TRANSIENT IMMUNITY
AVAILABLE IN SOT23-3 and SOT323-3
(SC70-3) PACKAGES
OPERATING TEMPERATURE –40°C TO
85°C
Figure 1. Packages
SOT23-3 (WX)
SOT323-3, SC70-3 (W)(1)
Note: 1. Contact local sales office for availability.
Rev 2.0
October 2005
1/21
STM1061
TABLE OF CONTENTS
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 1. Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 2.
Table 1.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SOT23-3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SOT323-3 (SC70-3) Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
N-Channel Open Drain Output Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
STM1061N Active-Low, Open Drain Hardware Hookup . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PIN DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 2. Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Negative-Going VCC Transients and Undershoot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TYPICAL OPERATING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 7. Supply Current vs. Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 8. Supply Current vs. Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 9. Output Detect Delay Time vs. Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 10.Output Release Delay Time vs. Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 11.Maximum Transient Duration vs. Reset Threshold Overdrive. . . . . . . . . . . . . . . . . . . . . . 9
Figure 12.Detect, Release Voltage vs. Ambient Temperature for VTH– = 3.4V. . . . . . . . . . . . . . . . . 9
Figure 13.N-channel Driver Output Current vs. VDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 14.N-channel Driver Output Current vs. Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
MAXIMUM RATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 3. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DC AND AC PARAMETERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 4. Operating and AC Measurement Conditions . . . . .
Figure 15.AC Testing Input/Output Waveforms. . . . . . . . . . .
Figure 16.Voltage Timing Waveform . . . . . . . . . . . . . . . . . . .
Table 5. DC and AC Characteristics . . . . . . . . . . . . . . . . . .
......
......
......
......
.......
.......
.......
.......
......
......
......
......
......
......
......
......
. . . . 12
. . . . 12
. . . . 12
. . . . 13
PACKAGE MECHANICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 17.SOT23-3 – 3-lead Small Outline Transistor Package Outline . . . . . . . . . . . . . . . . .
Table 6. SOT23-3 – 3-lead Small Outline Transistor Package Mechanical Data . . . . . . . . .
Figure 18.SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Outline . . . . . . . .
Table 7. SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Mechanical Data
2/21
. . . . 15
. . . . 15
. . . . 16
. . . . 16
STM1061
PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 8. Ordering Information Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 9. Factory-Trimmed Thresholds with Marking Description . . . . . . . . . . . . . . . . . . . . . . . . . 18
REVISION HISTORY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 10. Document Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3/21
STM1061
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 re-
mains 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 Diagram
Table 1. Signal Names
VCC
STM1061
VCC
Supply Voltage
VSS
Ground
AI10477
Figure 3. SOT23-3 Connections
1
2
3
VCC
AI10478
4/21
Open Drain Active-Low Output
OUT
VSS
OUT
VSS
OUT
Figure 4. SOT323-3 (SC70-3) Connections
VSS
OUT
1
2
3
VCC
AI10479
STM1061
Figure 5. N-Channel Open Drain Output Block Diagram
VCC
VOUT
R1
+
–
VREF
R2
VSS
R3
AI10482
Figure 6. STM1061N Active-Low, Open Drain Hardware Hookup
DC/DC
Converter
VOUT
VIN
Regulated 3V
VSS
VCC
+
3.6V
STM1061N
(Open Drain)
OUT
VCC
VSS
MCU
Suspend
VSS
AI10484
5/21
STM1061
PIN DESCRIPTIONS
See Figure 2., page 4 and Table 1., page 4 for a
brief overview of the signals connected to this device.
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.
VCC. This is the Supply voltage and input for the
Voltage Detector.
VSS. Ground, VSS, is the reference for the power
supply. It must be connected to the system
ground.
Table 2. Pin Functions
Pin
Name
Function
SOT23-3
SOT323-3 (SC70-3)
1
2
OUT
Active-Low Open Drain Output
3
3
VCC
Supply Voltage
2
1
VSS
Ground
OPERATION
Output
The STM1061 Voltage Detector monitors system
voltages from 1.6V 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 Figure 6., page 5). 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.
6/21
Negative-Going VCC Transients and
Undershoot
The STM1061 device is relatively immune to negative-going VCC transients (glitches). The graph
(see Figure 11., page 9) 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.
STM1061
TYPICAL OPERATING CHARACTERISTICS
Figure 7. Supply Current vs. Input Voltage
1400
1200
ICC (nA)
1000
800
600
Temp = –40°C
400
Temp = 25°C
200
Temp = 85°C
0
0
1
2
3
4
5
VCC (V)
6
AI11119b
Figure 8. Supply Current vs. Ambient Temperature
Supply Current: ICC (nA)
1250
1000
750
VCC = 5V
500
VCC = 3V
VCC = 2V
250
0
-40
-20
0
20
40
60
80
Ambient Temperature (°C)
AI11120b
7/21
STM1061
Figure 9. Output Detect Delay Time vs. Ambient Temperature
VCC-to-OUT Detect Delay: tPD (µs)
35.00
30.00
VTH– = 3.4V
25.00
20.00
15.00
VTH– = 1.6V
10.00
5.00
0.00
–40
–20
0
20
40
60
80
Ambient Temperature: TA (°C)
AI11121b
Figure 10. Output Release Delay Time vs. Ambient Temperature
50.00
VCC-to-OUT Release Delay: tPR (µs)
45.00
40.00
VTH+ = 3.57V
35.00
30.00
25.00
20.00
15.00
VTH+ = 1.68V
10.00
5.00
0.00
–40
–20
0
20
40
Ambient Temperature: TA (°C)
8/21
60
80
AI11122b
STM1061
Figure 11. Maximum Transient Duration vs. Reset Threshold Overdrive
160
Transient Duration (µs)
140
VTH– = 3.4V
120
VTH– = 1.6V
100
80
60
40
20
0
1
10
100
1000
10000
Threshold Overdrive (mV)
AI11123b
Note: Reset occurs above the curve.
Figure 12. Detect, Release Voltage vs. Ambient Temperature for VTH– = 3.4V
Detect, Release Voltage: VTH–, VTH+ (V)
3.6
3.5
Detect Voltage, VTH–
Release Voltage, VTH+
3.4
3.3
–40
–20
0
20
40
60
80
Ambient Temperature (°C)
AI11124b
9/21
STM1061
Figure 13. N-channel Driver Output Current vs. VDS
0.06
VCC = 3.3V
0.05
Output Current: ID (A)
VCC = 3.0V
VCC = 2.7V
0.04
VCC = 2.1V
VCC = 1.5V
0.03
VCC = 1.0V
0.02
0.01
0
0
0.25
0.5
0.75
1
1.25
Output Voltage: VDS (V)
1.5
AI11125b
Figure 14. N-channel Driver Output Current vs. Input Voltage for VDS = 0.5V
30
Output Current: IOUT (mA)
25
Temp. (25°C)
20
Temp. (85°C)
Temp. (–40°C)
15
10
5
0
0
0.5
1
1.5
2
2.5
3
Input Voltage: VCC (V)
AI11126b
10/21
STM1061
MAXIMUM RATING
Stressing the device above the rating listed in the
Absolute Maximum Ratings” table 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 im-
plied. 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. Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
TSTG
Storage Temperature (VCC Off, VBAT Off)
–55 to 150
°C
TSLD(1)
Lead Solder Temperature for 10 seconds
260
°C
–0.3 to VCC +0.3
V
VIO
Input or Output Voltage
VCC
Supply Voltage
0.7 to 6.0
V
IO
Output Current
20
mA
PD
Power Dissipation
320
mW
Note: 1. Reflow at peak temperature of 255°C to 260°C for < 30 seconds (total thermal budget not to exceed 180°C for between 90 to 150
seconds).
11/21
STM1061
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 Table 4, 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
Parameter
STM1061
Unit
0.7 to 6.0
V
≤5
ns
Input Pulse Voltages
0.2 to 0.8VCC
V
Input and Output Timing Ref. Voltages
0.3 to 0.7VCC
V
VCC Supply Voltage
Input Rise and Fall Times
Figure 15. AC Testing Input/Output Waveforms
0.8VCC
0.7VCC
0.3VCC
0.2VCC
AI02568
Figure 16. Voltage Timing Waveform
VCC
VTH+
VTH–
Release Voltage (VTH+ = VTH– + VHYST)
Detect Voltage
VCC (min)
VSS
VOUT
tPD
Detect Delay
VSS
tPR
Release Delay
AI10483
12/21
STM1061
Table 5. DC and AC Characteristics
Sym
Description
VCC
Operating Voltage
ICC
VCC Supply Current
IOUT
Output Current, N-channel
(VDS = 0.5V),
Reset asserted
Test Condition(1)
Min
Typ
0.7
Max
Unit
6.0
V
VCC = 3.0V, No Load
0.9
3.0
µA
VCC = 5.5V, No Load
1.1
3.6
µA
VCC = 1.0V
1.0
1.7
mA
VCC = 2.0V
3.0
14
mA
VCC = 3.0V
5.0
22
mA
VCC = 4.0V
6.0
26
mA
VCC = 5.0V
7.0
30
mA
VTH– – 2%
VTH–
Voltage Thresholds
VTH–
Detect Voltage
(see Table 9., page 18 for
detailed listing)
VTH+
Release Voltage
VHYST
tPD
tPR
VTH– + 2%
VTH– +
VHYST
0.02VTH–
Threshold Hysteresis
0.05VTH–
VCC to OUT Detect Delay
VCC falling from
(VTH– + 100mV) to
(VTH– – 100mV)
at 10mV/µs
25
VCC to OUT Release Delay
VCC rising from
(VTH+ – 100mV) to
(VTH+ + 100mV)
at 10mV/µs
30
Threshold Temperature
Coefficient
±100
V
V
0.08VTH–
V
µs
200
µs
ppm/
oC
Note: 1. Valid for Ambient Operating Temperature: TA = 25°C.
13/21
STM1061
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.
14/21
STM1061
Figure 17. SOT23-3 – 3-lead Small Outline Transistor Package Outline
E
E1
0.15
B
M
CAB
A1
1
e
D
e1
0.20
M
3X
CAB
A2
0.10 C
A
3X b
C
A
C
θ
L1
C
L
SOT23-3
Note: Drawing is not to scale.
Table 6. SOT23-3 – 3-lead Small Outline Transistor Package Mechanical Data
mm
inches
Symbol
Typ
Min
Max
A
0.89
A1
Min
Max
1.12
0.035
0.044
0.01
0.10
0.001
0.004
A2
0.88
1.02
0.035
0.042
b
0.30
0.50
0.012
0.020
C
0.08
0.20
0.003
0.008
D
2.80
3.04
0.110
0.120
E
2.10
2.64
0.083
0.104
E1
1.20
1.40
0.047
0.055
e
0.89
1.03
0.035
0.041
e1
1.78
2.05
0.070
0.081
L
0.54
Typ
0.021
L1
0.40
0.60
0.016
0.024
Θ
0°
8°
0°
8°
N
3
3
15/21
STM1061
Figure 18. SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Outline
E
E1
0.30
B
M
CAB
A1
1
e
D
e1
0.10
M
3X
CAB
C
θ1
C
A2
0.10 C
A
3X b
A
θ
L1
C
L
SOT323-3
Note: Drawing is not to scale.
Table 7. SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Mechanical Data
mm
inches
Symbol
Typ
16/21
Min
Max
A
0.80
A1
Typ
Min
Max
1.10
0.031
0.043
0.00
0.10
0.000
0.004
A2
0.80
1.00
0.031
0.039
b
0.25
0.40
0.010
0.016
C
0.10
0.18
0.004
0.007
D
1.80
2.20
0.071
0.087
E
1.80
2.40
0.071
0.094
E1
1.15
1.35
0.045
0.053
e
0.65
0.026
e1
1.30
0.051
L
0.35
0.45
0.014
0.018
L1
0.10
0.30
0.004
0.012
Θ
0°
30°
0°
30°
Θ1
8°
12°
8°
12°
N
3
3
STM1061
PART NUMBERING
Table 8. Ordering Information Scheme
Example:
STM1061
N
xx
WX
6
F
Device Type
STM1061
Output Type
N = Open Drain (Active-Low)
Threshold Voltage (1.6V to 5.5V, 0.1V increments)
xx = See Table 9., page 18
Package
WX = SOT23-3
W = SOT323-3 (SC70-3)(1)
Temperature Range
6 = –40 to 85°C
Shipping Method
F = ECOPACK Package, Tape & Reel
Note: 1. 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.
17/21
STM1061
Table 9. Factory-Trimmed Thresholds with Marking Description
Suffix
18/21
Threshold Voltage VTH– (V) at TA = 25°C
Topside Marking
Min (–2%)
Typ
Max (+2%)
16
1.568
1.600
1.632
16Nx
17
1.666
1.700
1.734
17Nx
18(1)
1.764
1.800
1.836
18Nx
19(1)
1.862
1.900
1.938
19Nx
20(1)
1.960
2.000
2.040
20Nx
21(1)
2.058
2.100
2.142
21Nx
22
2.156
2.200
2.244
22Nx
23
2.254
2.300
2.346
23Nx
24(1)
2.352
2.400
2.448
24Nx
25(1)
2.450
2.500
2.550
25Nx
26
2.548
2.600
2.652
26Nx
27
2.646
2.700
2.754
27Nx
28
2.744
2.800
2.856
28Nx
29
2.842
2.900
2.958
29Nx
30(1)
2.940
3.000
3.060
30Nx
31
3.038
3.100
3.162
31Nx
32(1)
3.136
3.200
3.264
32Nx
33(1)
3.234
3.300
3.366
33Nx
34
3.332
3.400
3.468
34Nx
35(1)
3.430
3.500
3.570
35Nx
36(1)
3.528
3.600
3.672
36Nx
37(1)
3.626
3.700
3.774
37Nx
38(1)
3.724
3.800
3.876
38Nx
39(1)
3.822
3.900
3.978
39Nx
40(1)
3.920
4.000
4.080
40Nx
41(1)
4.018
4.100
4.182
41Nx
42(1)
4.116
4.200
4.284
42Nx
43(1)
4.214
4.300
4.386
43Nx
44(1)
4.312
4.400
4.488
44Nx
45(1)
4.410
4.500
4.590
45Nx
46(1)
4.508
4.600
4.692
46Nx
STM1061
Suffix
Threshold Voltage VTH– (V) at TA = 25°C
Topside Marking
Min (–2%)
Typ
Max (+2%)
47(1)
4.606
4.700
4.794
47Nx
48(1)
4.704
4.800
4.896
48Nx
49(1)
4.802
4.900
4.998
49Nx
50(1)
4.900
5.000
5.100
50Nx
51(1)
4.998
5.100
5.202
51Nx
52(1)
5.096
5.200
5.304
52Nx
53(1)
5.194
5.300
5.406
53Nx
54(1)
5.292
5.400
5.508
54Nx
55(1)
5.390
5.500
5.610
55Nx
Note: 1. Contact local ST sales office for availability.
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STM1061
REVISION HISTORY
Table 10. Document Revision History
Date
Version
20-January-2004
1.0
First Edition
01-Aug-05
1.1
Update Operation section, characteristics; insert new graphics; add ECOPACK
information (Figure 7, 8, 9, 10, 11, 12, 13, 14; Table 5, 8, 9)
02-Sep-05
1.2
Update characteristics, remove ‘push-pull output’ reference (Figure 8, 9, 10, 11, 12,
16; Table 2, 4, 5, 8)
19-Oct-05
2.0
Status upgrade; update characteristics; add Marking information (Figure 7, 8, 9, 10,
11, 12, 13, 14; Table 8, 9)
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Description
STM1061
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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