Vishay GS6332UR24D1 3 pin, low-power, p reset circuit Datasheet

GS6332 and GS6333
Vishay
formerly General Semiconductor
3 Pin, Low-Power, µP Reset Circuits
Pin Configuration
SOT-23 (Top View)
Description
• The GS6333 and GS6332 are system supervisor circuits
designed to monitor VCC in digital systems and provide
a reset signal to the host processor when necessary. No
external components are required.
1
GND
3
Reset/
Reset
Vcc
2
• When the processor power supply voltage drops below
the reset threshold, the reset output is driven active, in
less than 40µs (TD1). Reset is maintained active for a
time period (TD2), after the Vcc rises above the threshold
voltage.
• To prevent jitter, the reset threshold voltage has a built-in
hysteresis of 0.4% of VTH.
Fig. 1 – Typical Application Diagram
• The GS6333 has an active-low reset output, while the
GS6332 has an active-high reset output. Both devices
have push/pull output drives.
VCC
• The reset signal is guaranteed valid, down to Vcc = 1.0V.
VCC
VCC
GS6332
GS6333
µP
RESET
(RESET)
• Both devices are available in a space-saving SOT-23
package.
RESET
INPUT
GND
• Low supply current of 3µA makes these devices well suited for battery powered applications. They are designed
to reject fast transients from causing false resets.
GND
Features
• Tight reset voltage tolerances ± 1.8%
• Low supply current: < 3µA
Applications
• Precision monitoring of 1.8V and 2.5V
powersupply voltages
•
•
•
•
• Other threshold voltage options available from 1.5V to
2.5V in approximately 100mV increments
Computers
Critical µP/µC power monitoring
Battery powered equipment
Automotive electronics
• Three reset active time-out period options:
typical 1.5mS, 30mS, 150mS
• Reset output guaranteed down to 1.0V
• Vcc transient immunity
• No external components
Document Number 74810
22-May-02
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1
GS6332 and GS6333
Vishay
formerly General Semiconductor
Ordering Information
Marking Codes
Reset Timeout
Period (Typical)
1: 1.5mS
2: 30mS
3: 150mS
(Standard)
Reset Active High
GS6332URxxDx
GS6333URxxDx
Reset Active Low
Reset Voltage
Options (Typical)
15:
16:
18:
19:
20:
21:
22:
23:
24:
25:
1.5V
1.6V (Standard)
1.8V (Standard)
1.9V
2.0V (Standard)
2.1V
2.2V (Standard)
2.3V (Standard)
2.4V
2.5V
Sample stock is generally available on standard parts.
Contact our local sales office for availability of non standard versions (minimum order quantity is 10,000 pcs).
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2
GS6333
Product No.
GS6332
Marking
Product No.
Marking
GS6333UR15D1
ADxxx
GS6332UR15D1
BNxxx
GS6333UR15D2
AExxx
GS6332UR15D2
BOxxx
GS6333UR15D3
AGxxx
GS6332UR15D3
BPxxx
GS6333UR16D1
AHxxx
GS6332UR16D1
BRxxx
GS6333UR16D2
AIxxx
GS6332UR16D2
BSxxx
GS6333UR16D3
AKxxx
GS6332UR16D3
BTxxx
GS6333UR18D1
ALxxx
GS6332UR18D1
BVxxx
GS6333UR18D2
AMxxx
GS6332UR18D2
BWxxx
GS6333UR18D3
ANxxx
GS6332UR18D3
BXxxx
GS6333UR19D1
AOxxx
GS6332UR19D1
BYxxx
GS6333UR19D2
APxxx
GS6332UR19D2
BZxxx
GS6333UR19D3
ARxxx
GS6332UR19D3
CAxxx
GS6333UR20D1
ASxxx
GS6332UR20D1
CBxxx
GS6333UR20D2
ATxxx
GS6332UR20D2
CCxxx
GS6333UR20D3
AVxxx
GS6332UR20D3
CDxxx
GS6333UR21D1
AWxxx
GS6332UR21D1
CExxx
GS6333UR21D2
AXxxx
GS6332UR21D2
CGxxx
GS6333UR21D3
AYxxx
GS6332UR21D3
CHxxx
GS6333UR22D1
AZxxx
GS6332UR22D1
CIxxx
GS6333UR22D2
BAxxx
GS6332UR22D2
CKxxx
GS6333UR22D3
BBxxx
GS6332UR22D3
CLxxx
GS6333UR23D1
BCxxx
GS6332UR23D1
CMxxx
GS6333UR23D2
BDxxx
GS6332UR23D2
CNxxx
GS6333UR23D3
BExxx
GS6332UR23D3
COxxx
GS6333UR24D1
BGxxx
GS6332UR24D1
CPxxx
GS6333UR24D2
BHxxx
GS6332UR24D2
CRxxx
GS6333UR24D3
BIxxx
GS6332UR24D3
CSxxx
GS6333UR25D1
BKxxx
GS6332UR25D1
CTxxx
GS6333UR25D2
BLxxx
GS6332UR25D2
CVxxx
GS6333UR25D3
BMxxx
GS6332UR25D3
CWxxx
Document Number 74810
22-May-02
GS6332 and GS6333
Vishay
formerly General Semiconductor
Absolute Maximum Ratings (1)
Parameter
Symbol
Value
Unit
Vcc
6.0
V
–0.3 to (Vcc + 0.3)
V
Input Current, Vcc
20
mA
Output Current, Reset/Reset
20
mA
dV/dT (Vcc)
100
V/µS
Supply Voltage
Reset/Reset
Operating Temperature Range
TA
–40 to +125
°C
Storage Temperature Range
Tstg
–65 to +150
°C
Power Dissipation (TA ≤ 70°C)
SOT-23 (Derate 4mW/°C above 70°C)
PD
260
mW
Note: (1) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
Electrical Characteristics
Parameter
Vcc Range
TA = –40°C to 125°C unless otherwise noted. Typical values are at TA = 25°C
Symbol
VRANGE
Supply Current
(No Load)
ICC
Reset Threshold
VTH
Threshold Hysteresis
Test Conditions
Min
Typ
Max
TA = 25°C
1
–
5.5
TA = –40 to +85°C
1
–
5.5
TA = –40 to +125°C
1.2
–
5.5
Vcc = 3.0V
–
–
7.0
TA = 25°C
–
–
3.0
TA = 25°C
VTH –1.8%
VTH
VTH+1.8%
TA = –40 to +125°C
VTH –3%
VTH
VTH+3%
VTH HIST
0.4
VOL
GS6332 VCC > VTH
GS6333 VCC < VTH
ISINK = 50µA, VCC ≥1.0V
ISINK = 500µA, VCC ≥1.8V
Reset Output Voltage High
VOH
GS6332 VCC < VTH
GS6333 VCC > VTH
ISOURCE = 200µA, VCC≥1.8V
ISOURCE = 500µA, VCC≥2.7V
0.8VCC
0.8VCC
VCC Falling Reset Delay
TD1
VCC to VTH – 100mV
Reset Timeout Period
TD2
GS633xUR−D1
GS633xUR−D2
GS633xUR−D3
Reset Output Voltage Low
Document Number 74810
22-May-02
–
–
Unit
V
µA
V
%VTH
0.4
0.3
V
–
–
V
–
–
40
µS
0.5
15
80
1.5
30
150
5
50
230
mS
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GS6332 and GS6333
Vishay
formerly General Semiconductor
Ratings and
Characteristic Curves (TA = 25°C unless otherwise noted)
Fig. 2 – Timing Diagram
VTH
VTH
VCC
TD2
50%
TD1
50%
Reset
TD2
50%
TD1
50%
Reset
Fig. 3 – Transient Rejection
140
These devices have a certain immunity to fast negative
going transients. The graph titled “Transient Rejection”
shows the maximum allowable transient amplitude and
duration to avoid triggering an unintended reset. As
shown in the graph shorter transients can have larger
amplitudes without triggering resets.
120
Transient Duration (µS)
Supply (VCC) Transients
100
80
60
40
20
0
0.01
0.1
1
Transient Amplitude (V)
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Document Number 74810
22-May-02
GS6332 and GS6333
Vishay
formerly General Semiconductor
Ratings and
Characteristic Curves (TA = 25°C unless otherwise noted)
Fig. 4 – Reset Time vs. Temperature
Fig. 5 – ICC vs. Temperature
2.35
170
Supply Current @5V (µA)
Reset Time (mS)
165
GS6333UR25D3
160
155
150
145
140
--50
--20
10
40
70
100
2.30
2.25
GS6333UR25D3
2.20
2.15
2.10
--50
130
--20
10
40
70
100
130
Temperature (°C)
Temperature (°C)
Fig. 7 – ICC vs. VCC
Fig. 6 – Reset Vth vs. Temperature
2
2.506
2.504
2.502
1.6
85°C
40°C
2.498
I CC (µA)
Reset Vth (V)
2.500
GS6333UR25D3
2.496
2.494
1.2
0°C
0.8
2.492
0.4
2.490
2.488
2.486
0
--50
--20
10
40
70
100
130
Temperature (°C)
0
1
2
3
4
5
VCC (V)
Fig. 8 – TD1 Delay vs. Temperature
43
TD1 Delay (µS)
42
41
40
39
38
37
--40
--20
0
20
40
60
80
100
Temperature (°C)
Document Number 74810
22-May-02
www.vishay.com
5
GS6332andGS6333
VishaySemiconductors
formerlyGeneralSemiconductor
Ratingsand
CharacteristicCurves(TA=25°Cunlessotherwisenoted)
Fig. 9 – Threshold Hysteresis
vs. Temperature
Fig. 10 – Reset VOL vs. Temperature
0.265
0.5
0.260
Reset VOL @0.8mA (V)
Hysteresis (% of VTH)
0.4
0.3
0.2
0.1
0.255
0.250
0.245
0.240
GS6333URxxDx
0.235
0.230
0.225
0.220
0
--40
--20
0
20
40
60
80
100
--50
Temperature (°C)
--20
10
40
70
100
130
Temperature (°C)
SOT-23CaseOutline
3.10
2.70
Top View
MountingPadLayout
3
0.031 (0.8)
3.00
2.60
1.80
1.40
0.035 (0.9)
1
2
1.90
(TYP.)
0.079 (2.0)
Dimensionsinmillimeters
1.40
1.00
0.037 (0.95)
0.25
0.10
1.25
0.70
0.50
0.35
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0.15
0.55
0.35
0.037 (0.95)
θ1 9°
1°
DocumentNumber74810
22-May-02
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