INTEGRATED CIRCUITS
SA56606-XX
CMOS system reset
Product data
Supersedes data of 2001 Apr 24
File under Integrated Circuits, Standard Analog
2001 Jun 19
Philips
Semiconductors
Philips Semiconductors
Product data
CMOS system reset
SA56606-XX
GENERAL DESCRIPTION
The SA56606-XX is a CMOS device designed to generate a reset
signal for a variety of microprocessor and logic systems. Accurate
reset signals are generated during momentary power interruptions
or whenever power supply voltages sag to intolerable levels. An
Open Drain output topology is incorporated for adaptability to a wide
variety of logic and microprocessor applications. Several reset
threshold versions of the device are available.
The SA56606-XX is available in the SOT23-5 surface mount
package.
FEATURES
•
12 V
DC
maximum operating voltage
•
CMOS N-channel Open Drain output
•
Offered in reset thresholds of
•
Available in SOT23-5 surface mount package
SIMPLIFIED SYSTEM DIAGRAM
V
DD
2 V
DD
APPLICATIONS
2.0, 2.7, 2.8, 2.9, 3.0, 3.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7 V
DC
•
Microcomputer systems
•
Logic systems
•
Battery monitoring systems
•
Back-up power supply circuits
•
Voltage detection circuits
V
DD
SA56606-XX
R
V
OUT
R
PU
CPU
V
REF
R
R
1
RESET
V
SS
3 V
SS
V
SS
SL01313
Figure 1. Simplified system diagram.
2001 Jun 19
2
885–2247 26559
Philips Semiconductors
Product data
CMOS system reset
SA56606-XX
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
SA56606-XXGW
NAME
SOT23-5, SOT25, SO5
DESCRIPTION
plastic small outline package; 5 leads (see dimensional drawing)
TEMPERATURE
RANGE
–40 to +85
°C
NOTE:
The device has twelve detection voltage options, indicated by the
XX
on the order code.
XX
20
27
28
29
30
31
42
43
44
45
46
47
DETECT VOLTAGE (Typical)
2.0 V
2.7 V
2.8 V
2.9 V
3.0 V
3.1 V
4.2 V
4.3 V
4.4 V
4.5 V
4.6 V
4.7 V
Part number marking
Each package is marked with a four letter code. The first three
letters designate the product. The fourth letter, represented by ‘x’, is
a date tracking code. For example, AAKB is device AAK (the
SA56606-30 reset), produced in time period ‘B’.
Part number
SA56606-20
SA56606-27
SA56606-28
SA56606-29
SA56606-30
SA56606-31
SA56606-42
SA56606-43
SA56606-44
SA56606-45
SA56606-46
SA56606-47
Marking
AA F x
AA G x
AA H x
AA J x
AA K x
AA L x
AA M x
AA N x
AA P x
AA R x
AA S x
AAT x
PIN CONFIGURATION
PIN DESCRIPTION
PIN
SYMBOL
V
OUT
V
DD
V
SS
N/C
N/C
DESCRIPTION
Reset High Output
Positive Supply
Ground. Negative Supply
No connection
No connection
1
2
V
OUT
1
5
N/C
V
DD
2
SA56606-XX
3
4
V
SS
3
4
N/C
5
SL01312
Figure 2. Pin configuration.
MAXIMUM RATINGS
SYMBOL
V
DD
V
OUT
I
OUT
T
oper
T
stg
P
Power supply voltage
Output voltage
Output current
Operating temperature
Storage temperature
Power dissipation
PARAMETER
MIN.
–0.3
–
–
–40
–40
–
MAX.
12
V
SS
– 0.3
50
85
125
150
UNIT
V
V
mA
°C
°C
mW
2001 Jun 19
3
Philips Semiconductors
Product data
CMOS system reset
SA56606-XX
DC ELECTRICAL CHARACTERISTICS
Characteristics measured with T
amb
= 25
°C,
unless otherwise specified.
SYMBOL
V
S
∆V
S
V
S
/∆T
I
CC
I
OH
I
DS1
I
DS2
I
DS3
PARAMETER
Reset detection threshold
Hysteresis
Threshold voltage temperature
coefficient
Supply current
I
DS
leakage current when OFF
N-channel I
DS
output sink current 1
N-channel I
DS
output sink current 2
(for V
S
> 2.6 V)
N-channel I
DS
output sink current 3
(for V
S
> 3.9 V)
V
DD
= 0 V
→
V
S
+ 1.0 V
→
0 V
–40
°C ≤
T
amb
≤
+85
°C
V
DD
= V
S
+ 1.0 V
V
DD
= V
DS
= 10 V
V
DS
= 0.5 V; V
DD
= 1.2 V
V
DS
= 0.5 V; V
DD
= 2.4 V
V
DS
= 0.5 V; V
DD
= 3.6 V
2
Fig. 18
1
Fig. 17
CONDITIONS
TEST
CIRCUIT
MIN.
V
S
– 2%
V
S
×
0.03
–
–
–
–0.23
–1.6
–3.2
TYP.
V
S
V
S
×
0.05
±0.01
0.25
–
–1.4
–8.3
–14.7
MAX.
V
S
+ 2%
V
S
×
0.08
–
1.0
0.1
–
–
–
UNIT
V
V
%/°C
µA
µA
mA
mA
mA
2001 Jun 19
4
Philips Semiconductors
Product data
CMOS system reset
SA56606-XX
TYPICAL PERFORMANCE CURVES
0.50
0.45
I
DD
, SUPPLY CURRENT (mA)
0.40
0.35
0.30
0.25
0.20
0.15
0.10
–50
V
DD
= V
S
+ 1.0 V
NORMALIZED TO 25
°C
+0.20
+0.15
+0.10
+0.05
V
S
–0.05
–0.10
–0.15
–0.20
–50
V
CC
FALLING
V
S
NORMALIZED TO 25
°C
V
S
, NORMALIZED THRESHOLD (V)
–25
0
25
50
75
100
125
–25
0
25
50
75
100
125
T
amb
, TEMPERATURE (°C)
T
amb
, TEMPERATURE (°C)
SL01344
SL01345
Figure 3. Supply current versus temperature.
Figure 4. Detection threshold versus temperature.
200
V
S(HYS)
, DETECTION HYSTERESIS (mV)
I
DS
, OUTPUT FET CURRENT (mA)
V
S(HYS)
= V
SH
– V
SL
(V
CC
RISING – V
CC
FALLING)
150
3.0
V
DS
= 0.5 V
2.5
2.0
100
1.5
1.0
N-CHANNEL
50
0.5
0
–50
0
–25
0
25
50
75
100
125
–50
–25
0
25
50
75
100
125
T
amb
, TEMPERATURE (°C)
T
amb
, AMBIENT TEMPERATURE (°C)
SL01346
SL01317
Figure 5. Detection hysteresis versus temperature.
Figure 6. Output FET current versus temperature.
5.0
T
AMB
= 25
°C
TYPICAL CHARACTERISTIC.
DETECTION AND RELEASE
VOLTAGE POINTS DEPEND ON
THE SPECIFIC DEVICE TYPE.
V
S(HYS)
2.0
DETECTION (V
SL
)
RELEASE (V
SH
)
0.6
T
AMB
= 25
°C
0.5
I
DD
, SUPPLY CURRENT (
µ
A)
V
OUT
, OUTPUT VOLTAGE (V)
4.0
0.4
3.0
0.3
0.2
1.0
0.1
0
0
1.0
2 .0
3.0
4.0
5.0
6.0
V
DD
, SUPPLY VOLTAGE (V)
0
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10
V
DD
, SUPPLY VOLTAGE (V)
SL01348
SL01349
Figure 7. Output voltage versus supply voltage
Figure 8. Supply current versus supply voltage
2001 Jun 19
5
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