GS809C24EUE [VISHAY]
Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, SOT-23, 3 PIN;
| 型号： | GS809C24EUE |
| 厂家： | 
VISHAY |
| 描述： | Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, SOT-23, 3 PIN 光电二极管 |
| 文件： | 总6页 (文件大小：44K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
GS809C and GS810C
New Product
Vishay
formerly General Semiconductor
Microprocessor Reset Monitors
Pin Configuration
SOT-23 (Top View)
Description
• The GS809C and 810C are system supervisor
circuits designed to monitor V in digital systems
CC
1
GND
and provide a reset signal to the host processor
when necessary. No external components are
required.
V
cc
3
• When the processor power supply voltage drops
below the reset threshold, the reset output is driven
Reset
Output
2
active, in less than 40µs (T ). Reset is main-
D1
tained active for a time period (T ), after the V
D2
cc
rises above the threshold voltage.
• To prevent jitter, the reset threshold voltage has a
built-in hysteresis of 0.4% of V
.
TH
• The GS809C has an active-low reset output, while
the GS810C has an active-high reset output. Both
devices have push/pull output drives.
Fig. 1 – Typical Application Diagram
• The reset signal is guaranteed valid, down to
VCC
V
cc
= 1.0V.
• 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.
VCC
Processor
VCC
GS809C
Reset
Input
Reset
• Both devices are available in a space-saving
SOT-23 package.
GND
GND
Applications
Features
• Computers
• Tight reset voltage tolerances ± 1.5%
• 4 reset active timeout period options
• Low quiescent current: <3µA
• Battery Powered Equipment
• Critical uProcessor and uController power supply
monitoring
• 9 reset threshold options from 2.1V to 4.63V
• Reset output guaranteed down to 1.0V
• No external components
• V Transient immunity
cc
• Wide temperature range –40°C to +85°C
Document Number 74808
01-Nov-02
www.vishay.com
1
GS809C and GS810C
Vishay
formerly General Semiconductor
Ordering Information
Reset Timeout
Period
Reset Active Low
Default: 210mS
E: 150mS
GS809CxxEUx
GS810CxxEUx
D: 30mS
A: 1.5mS
Reset Active High
Reset Voltage
Options
th = 4.63V
M Vth = 4.38V
L
V
J
T
S
V
V
V
th = 4.0V
th = 3.08V
th = 2.93V
27 Vth = 2.7V
th = 2.63V
R
V
24 Vth = 2.4V
21 Vth = 2.1V
Marking Information
X XX XX
Date Code
Year --Week
Threshold Voltage
26: 2.63V 38: 3.8V 46: 4.63V Etc.
No letters
A: GS809C,
1.5mS
L: GS810C,
1.5mS
D: GS809C, 30.0mS
E: GS809C, 150.0mS
G: GS809C, 210.0mS
Q: GS810C, 30.0mS
R: GS810C, 150.0mS
S: GS810C, 210.0mS
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2
Document Number 74808
01-Nov-02
GS809C and GS810C
Vishay
formerly General Semiconductor
Absolute Maximum Ratings(1)
Parameter
Symbol
Value
Unit
V
Supply Voltage
Vcc
6.0
–0.3 to (Vcc + 0.3)
20
Reset/Reset
V
Input Current, Vcc
mA
mA
V/µS
°C
Output Current, Reset/Reset
dV/dT (Vcc)
20
100
Operating Temperature Range
Storage Temperature Range
TA
–40 to +85
–65 to +150
Tstg
°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 TA = 25°C unless otherwise noted.
Parameter
Symbol
Test Conditions
Min
1
Typ
–
Max
5.5
5.5
3.0
5.0
Unit
V
Vcc Range
VRANGE
TA = –40 to +85°C
Vcc = 3.0V
1
–
–
–
µA
Supply Current
ICC
Vcc=3.0V, TA= –40 to +85°C
–
–
VTHNOM–1.5% VTHNOM VTHNOM+1.5%
Reset Threshold
VTH
V
TA = –40 to +85°C VTHNOM–2.0% VTHNOM VTHNOM+2.0%
Threshold Hysteresis
VTH HIST
0.4
%VTH
Reset Threshold
Temperature Coefficient
–
–
30
–
–
ppm/°C
Reset Output Voltage Low
809C/810C
809C Vcc < VTH min
810C Vcc > VTH max
TA = –40 to +85°C
ISINK = 1.2mA
VOL
0.5
V
V
Reset Output Voltage High
809C/810C
809C Vcc > VTH max
810C Vcc < VTH min
TA = –40 to +85°C
ISOURCE = 0.5mA
VOH
0.8VCC
–
–
VCC = VTH – 100mV
TA = –40 to +85°C
VCC to Reset Delay
TD1
TD2
–
40
–
µS
Reset Timeout Period
TA = –40 to +85°C
TD2NOM–35%
TD2NOM
TD2NOM+35%
mS
Document Number 74808
01-Nov-02
www.vishay.com
3
GS809C and GS810C
Vishay
formerly General Semiconductor
Ratings and
Characteristic Curves(TA = 25°C unless otherwise noted)
Fig. 2 – Timing Diagram
V
V
TH
TH
V
CC
T
T
D2
50%
T
T
D1
50%
Reset
Reset
D2
50%
50%
D1
Fig. 3 – Transient Rejection
140
120
100
Supply (V ) Transients
CC
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.
80
60
40
20
0
0.01
0.1
1
Transient Amplitude (V)
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Document Number 74808
01-Nov-02
GS809C and GS810C
Vishay
formerly General Semiconductor
Ratings and
Characteristic Curves(TA = 25°C unless otherwise noted)
Fig. 4 – Reset Time vs.Temperature
Fig. 5 – I vs.Temperature
CC
2.35
220
215
2.30
2.25
210
205
200
195
190
GS809CREU
GS809CREU
2.20
2.15
2.10
--50
--20
10
40
70
100
130
130
100
--50
--20
10
40
70
100
130
Temperature (°C)
Temperature (°C)
Fig. 6 – Reset V vs.Temperature
Fig. 7 – I vs. V
CC CC
th
2
2.650
2.648
2.646
1.6
1.2
0.8
0.4
85°C
2.644
2.642
2.640
2.638
2.636
2.634
2.632
2.630
40°C
GS809CREU
0°C
0
0
1
2
3
4
5
--50
--20
10
40
70
100
Temperature (°C)
VCC (V)
Fig. 8 – TD1 Delay vs.Temperature
43
42
41
40
39
38
37
--40
--20
0
20
40
60
80
Temperature (°C)
Document Number 74808
01-Nov-02
www.vishay.com
5
GS809C and GS810C
Vishay
formerly General Semiconductor
Ratings and
Characteristic Curves(TA = 25°C unless otherwise noted)
Fig. 9 – Threshold Hysteresis
vs.Temperature
Fig. 10 – Reset V vs.Temperature
OL
0.5
0.265
0.260
0.255
0.4
0.3
0.2
0.1
0.250
0.245
0.240
0.235
0.230
0.225
0.220
GS809CREU
0
--40
--20
0
20
40
60
80
100
--50
--20
10
40
70
100
130
Temperature (°C)
Temperature (°C)
SOT-23 Case Outline
3.10
2.70
Top View
Mounting Pad Layout
3
0.031 (0.8)
3.00
2.60
1.80
1.40
0.035 (0.9)
1
2
0.079 (2.0)
1.90
(TYP.)
Dimensions in millimeters
1.40
0.037 (0.95)
1.00
0.037 (0.95)
0.25
0.10
1.25
0.70
θ1 9°
1°
0.55
0.35
0.15
0.50
0.35
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Document Number 74808
01-Nov-02
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