SiP6332/SiP6333
New Product
Vishay Siliconix
3-Pin, Low-Power,
mP
Reset Circuits
FEATRES
D
Tight Reset Voltage Tolerances
"1.5%
D
Low Supply CRrent: < 3
mA
D
Precision Monitoring of 1.6 V and 2.5 V Power Supply
Voltages
D
Other Threshold Voltage Options Available From 1.5 V to
2.5 V In Approximately 100-mV Increments
D
Three Reset Active Time-out Period Options: Typical
1.5 mS, 30 mS, 150 m
D
RESET Output Guaranteed Down to 1.0 V
D
V
CC
Transient Immunity
D
No External Components
APPLICATIONS
D
Computers
D
Critical
mP/mC
Power Monitoring
D
Battery Powered Equipment
D
Automotive Electronics
DESCRIPTION
The SiP6332/SiP6333 are system supervisor circuits
designed to monitor V
CC
in digital systems and provide a reset
signal to the host processor when necessary. No external
components are required.
When the processor power supply voltage drops below the
reset threshold, the reset output is driven active, in less than
40
ms
(T
D1
). Reset is maintained active for a time period (T
D2
),
after the V
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 SiP6333 has an active-low RESET output, while the
SiP6332 has an active-high reset output. Both devices have
push/pull output drives.
The reset signal is guaranteed valid, down to V
CC
= 1.0 V.
Low supply cRrent of 3
mA
makes these devices well suited for
battery powered applications. They are designed to reject fast
transients from causing false resets.
Both devices are available in a space-saving SOT-23
package.
PACKAGING AND PIN DEFINITION
SOT-23
GND
1
3
RESET/RESET
2
V
CC
Top View
See page 2 for ordering and marking information.
TYPICAL APPLICATION CIRCUIT
V
CC
V
CC
V
CC
Processor
RESET
INPUT
GND
SiP6332
SiP6333
RESET
(RESET)
GND
Document Number: 72044
S-32698—Rev. A, 19-Jan-04
www.vishay.com
1
SiP6332/SiP6333
Vishay Siliconix
ORDERING INFORMATION
SiP6332/SiP6333 RxxDx
−
TR1
RESET Active High
RESET Active Low
Reset Voltage Options (Typical)
15: 1.5 V
16: 1.6 V (standard)
18: 1.8 V (standard)
19: 1.9 V
20: 2.0 V (standard)
21: 2.1 V
22: 2.2 V (standard)
23: 2.3 V (standard)
24: 2.4 V
25: 2.5 V
Tape/Reel
Reset Timeout Period (Typical)
1: 1.5 mS
2: 30 mS
3: 150 mS (standard)
New Product
Sample stock is generally available on standard parts. Contact oR local sales office for availability of non standard versions (mini-
mum order quantity is 10,000 pcs).
MARKING CODES
SiP6332
Part Number
SiP6332R15D1
SiP6332R15D2
SiP6332R15D3
SiP6332R16D1
SiP6332R16D2
SiP6332R16D3
SiP6332R18D1
SiP6332R18D2
SiP6332R18D3
SiP6332R19D1
SiP6332R19D2
SiP6332R19D3
SiP6332R20D1
SiP6332R20D2
SiP6332R20D3
SiP6332R21D1
SiP6332R21D2
SiP6332R21D3
SiP6332R22D1
SiP6332R22D2
SiP6332R22D3
SiP6332R23D1
SiP6332R23D2
SiP6332R23D3
SiP6332R24D1
SiP6332R24D2
SiP6332R24D3
SiP6332R25D1
SiP6332R25D2
SiP6332R25D3
www.vishay.com
SiP6333
Marking
BNxxx
BOxxx
BPxxx
BRxxx
BSxxx
BTxxx
BVxxx
VWxxx
BXxxx
BYxxx
BZxxx
CAxxx
CBxxx
CCxxx
CDxxx
CExxx
CGxxx
CHxxx
CIxxx
CKxxx
CLxxx
CMxxx
CNxxx
COxxx
CPxxx
CRxxx
CSxxx
CTxxx
CVxxx
CWxxx
Part Number
SiP6333R15D1
SiP6333R15D2
SiP6333R15D3
SiP6333R16D1
SiP6333R16D2
SiP6333R16D3
SiP6333R18D1
SiP6333R18D2
SiP6333R18D3
SiP6333R19D1
SiP6333R19D2
SiP6333R19D3
SiP6333R20D1
SiP6333R20D2
SiP6333R20D3
SiP6333R21D1
SiP6333R21D2
SiP6333R21D3
SiP6333R22D1
SiP6333R22D2
SiP6333R22D3
SiP6333R23D1
SiP6333R23D2
SiP6333R23D3
SiP6333R24D1
SiP6333R24D2
SiP6333R24D3
SiP6333R25D1
SiP6333R25D2
SiP6333R25D3
Marking
ADxxx
AExxx
AGxxx
AHxxx
AIxxx
AKxxx
ALxxx
AMxxx
ANxxx
AOxxx
APxxx
ARxxx
ASxxx
ATxxx
AVxxx
AWxxx
AXxxx
AYxxx
AZxxx
BAxxx
BBxxx
BCxxx
BDxxx
BExxx
BGxxx
BHxxx
BIxxx
BKxxx
BLxxx
BMxxx
Document Number: 72044
S-32698—Rev. A, 19-Jan-04
2
SiP6332/SiP6333
New Product
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS (T
A
= 25_C UNLESS OTHERWISE NOTED)
Parameter
Supply Voltage
RESET/RESET
Input CRrent, V
CC
Output CRrent, RESET/RESET
dv/dt (V
CC
)
Operating TemperatRe Range
Storage TemperatRe Range
Power Dissipation (T
A
v
70_C)
SOT-23 (Derate 4 mW/_C above 70_C)
T
A
T
stg
P
D
I
CC
Symbol
V
CC
Limit
6.0
−0.3
to (V
CC
+ 0.3)
20
20
100
−40
to 125
−65
to 150
260
Unit
V
mA
V/mS
_C
mW
SPECIFICATIONS
Test Conditions Unless Specified
Parameter
Symbol
T
A
=
−40_C
to 125_C
Limits
Min
a
1
1
1.2
Typ
b
Max
a
5.5
5.5
5.5
7.0
3.0
Unit
T
A
= 25_C
V
CC
Range
g
V
RANGE
T
A
=
−40_C
to 85_C
V
CC
= 3.0 V
V
CC
= 3.0 V, T
A
= 25_C
T
A
= 25_C
T
A
=
−40_C
to 125_C
I
SINK
= 50
mA
V
CC
w
1.0 V
I
SINK
= 500
mA
V
CC
w
1.8 V
I
SORCE
= 200
mA
V
CC
w
1.8 V
I
SORCE
= 500
mA
V
CC
w
2.7 V
D1
Reset Timeout Period
T
D2
SiP633xR
D2
D3
V
Supply CRrent (No Load)
Reset Threshold
Threshold Hysteresis
I
CC
V
TH
V
TH(hys)
mA
V
%V
TH
V
TH
−1.5%
V
TH
−3%
V
TH
V
TH
0.7
V
TH
+1.5%
V
TH
+3%
Reset Output Voltage Low
V
OL
SiP6332 V
SiP6332—V
CC
u
V
TH
SiP6333—V
CC
t
V
TH
0.4
0.3
V
0.8 V
CC
0.8 V
CC
40
0.5
15
80
1.5
30
150
5
50
230
mS
mS
Reset Output Voltage High
V
OH
T
D1
SiP6332 V
SiP6332—V
CC
t
V
TH
SiP6333—V
CC
u
V
TH
V
CC
to Reset Delay
V
CC
= V
TH
−
100 mV
Notes
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
b. T
A
= 25_C. Typical values are for DESIGN AID ONLY, not guaranteed or subject to production testing.
Document Number: 72044
S-32698—Rev. A, 19-Jan-04
www.vishay.com
3
SiP6332/SiP6333
Vishay Siliconix
New Product
TYPICAL CHARACTERISTICS (T
A
= 25_C Unless Otherwise Noted)
V
TH
V
TH
V
CC
T
D2
RESET
50%
T
D1
50%
T
D2
RESET
50%
T
D1
50%
These devices have a cer tain immunity to fast negative going
transients. The graph titled “Transient Rejection” shows the
maximum allowable transient amplitude and dRation to avoid
triggering an unintended reset. As shown in the graph shorter
transients can have larger amplitudes without triggering
resets.
Transient Rejection
140
120
220
215
Reset Time vs. TemperatRe
Transient DRation (mS)
80
60
40
20
0
Reset Time (mS)
100
SiP6333R25D3
210
205
200
195
190
0.01
0.1
1
−50
−20
10
40
70
100
130
Transient Amplitude
TemperatRe (_C)
www.vishay.com
4
Document Number: 72044
S-32698—Rev. A, 19-Jan-04
SiP6332/SiP6333
New Product
TYPICAL CHARACTERISTICS (T
A
= 25_C Unless Otherwise Noted)
Vishay Siliconix
2.35
I
CC
vs. TemperatRe
2.650
2.648
Reset V
TH
vs. TemperatRe
Supply CRrent @ 5 V (mA)
2.30
2.646
2.644
2.25
Reset V
TH
(v)
SiP6333R25D3
2.642
2.640
2.638
2.636
SiP6333R25D3
2.20
2.15
2.634
2.632
2.10
−50
−20
10
40
70
100
130
2.630
−50
−20
10
40
70
100
130
TemperatRe (_C)
TemperatRe (_C)
2
I
CC
vs. V
CC
43
42
T
D1
Delay vs. TemperatRe
1.6
85_C
40_C
I
CC
(mA)
1.2
0_C
T
D1
Delay (mS)
41
40
39
38
37
−40
0.8
0.4
0
0
1
2
3
4
5
−20
0
20
40
60
80
100
V
cc
(V)
TemperatRe (_C)
Threshold Hysteresis vs. TemperatRe
0.5
0.265
0.260
Reset V
OL
vs. TemperatRe
Reset V
OL
@ 0.8 mA (V)
0.4
Hysteresis (% of V
TH
)
0.255
0.250
0.245
0.240
0.235
0.230
0.225
SiP6333R25D3
0.3
0.2
0.1
0
−40
−20
0
20
40
60
80
100
0.220
−50
−20
10
40
70
100
130
TemperatRe (_C)
Document Number: 72044
S-32698—Rev. A, 19-Jan-04
TemperatRe (_C)
www.vishay.com
5
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