Philips SA56614-20, SA56614-27, SA56614-28, SA56614-29, SA56614-30 User Guide
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INTEGRATED CIRCUITS
SA56614-XX
CMOS system reset
Product data
Supersedes data of 2001 Apr 24
File under Integrated Circuits, Standard Analog
2001 Jun 19
Philips Semiconductors Product data
SA56614-XXCMOS system reset
GENERAL DESCRIPTION
The SA56614-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.
Several reset threshold versions of the device are available. A
totem-pole output topology is incorporated to provide both current
source and sink capability to the user.
SA56614-XX is available in the SOT23-5 surface mount package.
FEA TURES
•12 V
maximum operating voltage
DC
•Low operating voltage (0.65 V)
•Totem pole CMOS output
•Offered in reset thresholds of
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
•Available in SOT23-5 surface mount package
SIMPLIFIED SYSTEM DIAGRAM
V
DD
V
REF
R
V
SS
V
2
R
R
3
V
DC
DD
NE56614-XX
SS
APPLICATIONS
•Microcomputer systems
•Logic systems
•Battery monitoring systems
•Back-up power supply circuits
•Voltage detection circuits
V
OUT
1
RESET
V
CPU
V
SS
SL01343
DD
Figure 1. Simplified system diagram.
2001 Jun 19 853–2248 26559
2
Philips Semiconductors Product data
TYPE NUMBER
SA56614-XXCMOS system reset
ORDERING INFORMATION
PACKAGE
NAME DESCRIPTION
SA56614-XXGW SOT23-5, SOT25, SO5 plastic small outline package; 5 leads (see dimensional drawing) –40 to +85 °C
TEMPERATURE
RANGE
NOTE:
The device has twelve detection voltage options, indicated by the
XX on the ‘Type number’.
XX
DETECT VOLTAGE (Typical)
20 2.0 V
27 2.7 V
28 2.8 V
29 2.9 V
30 3.0 V
31 3.1 V
42 4.2 V
43 4.3 V
44 4.4 V
45 4.5 V
46 4.6 V
47 4.7 V
PIN CONFIGURATION
1
V
OUT
2
V
DD
SS
SA56614-XX
34
5 N/C
N/CV
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, AALB is device AAW (the
SA56614-28 reset) produced in time period ‘B’.
Part number
Marking
SA56614-20 A A U x
SA56614-27 A A V x
SA56614-28 A A W x
SA56614-29 A A X x
SA56614-30 A A Y x
SA56614-31 A A Z x
SA56614-42 A B A x
SA56614-43 A B B x
SA56614-44 A B C x
SA56614-45 A B D x
SA56614-46 A B E x
SA56614-47 A B F x
PIN DESCRIPTION
PIN SYMBOL DESCRIPTION
1 V
2 V
3 V
OUT
DD
SS
4 N/C No connection.
5 N/C No connection.
Reset HIGH output.
Positive supply.
Ground. Negative supply.
MAXIMUM RATINGS
2001 Jun 19
SL01360
Figure 2. Pin configuration.
SYMBOL PARAMETER MIN. MAX. UNIT
V
V
I
OUT
T
T
DD
OUT
oper
stg
Power supply voltage –0.3 12 V
Output voltage – VSS – 0.3 V
Output current – 50 mA
Operating temperature –40 85 °C
Storage temperature –40 125 °C
P Power dissipation – 150 mW
3
Philips Semiconductors Product data
1
Fig. 17
SA56614-XXCMOS system reset
DC ELECTRICAL CHARACTERISTICS
Characteristics measured with T
SYMBOL
V
S
∆V
S
Reset detection threshold VS – 2% V
Hysteresis VDD = 0 V → VS + 1.0 V → 0 V
PARAMETER CONDITIONS TEST
VS/∆T Threshold voltage temperature
coefficient
I
CC
I
OH
I
NDS1
I
NDS2
I
NDS3
I
PDS1
I
PDS2
I
PDS3
Supply current VDD = VS + 1.0 V – 0.25 1.0 µA
IDS leakage current when OFF VDD = VDS = 10 V 3
N-channel IDS output sink current 1 VDD = 1.2 V; VDS = 0.5 V –0.23 –1.4 – mA
N-channel IDS output sink current 2
(for VS > 2.6 V)
N-channel IDS output sink current 3
(for VS > 3.9 V)
P-channel IDS output source current 1
(for VS < 4.0 V)
P-channel IDS output source current 2
(for VS < 5.7 V)
P-channel IDS output source current 3
(for V
< 5.7 V)
S
= 25 °C, unless otherwise specified.
amb
–40 °C ≤ T
VDS = 0.5 V; VDD = 2.4 V
VDS = 0.5 V; VDD = 3.6 V
VDS = 0.5 V; VDD = 4.8 V 0.36 2.1 – mA
VDS = 0.5 V; VDD = 6.0 V;
4.0 V < VS < 5.7 V
VDS = 0.5 V; VDD = 8.4 V 0.59 3.3 – mA
≤ +85 °C
amb
CIRCUIT
Fig. 16
Fig. 18
2
Fig. 17
3
Fig. 18
MIN. TYP. MAX. UNIT
VS + 2% V
S
VS × 0.03 VS × 0.05 VS × 0.08 V
– ±0.01 – %/°C
– – 0.1 µA
–1.6 –8.3 – mA
–3.2 –14.7 – mA
0.46 2.5 – mA
2001 Jun 19
4
Philips Semiconductors Product data
SA56614-XXCMOS system reset
TYPICAL PERFORMANCE CURVES
0.50
VDD = VS + 1.0 V
0.45
NORMALIZED TO 25 °C
0.40
0.35
0.30
0.25
, SUPPLY CURRENT (mA)I
0.20
DD
0.15
0.10
–50 –25 0 25 50 75 100 125
T
, TEMPERATURE (°C)
amb
Figure 3. Supply current versus temperature.
SL01344
+0.20
VCC FALLING
+0.15
VS NORMALIZED TO 25 °C
+0.10
+0.05
V
S
–0.05
–0.10
, NORMALIZED THRESHOLD (V)V
S
–0.15
–0.20
–50 –25 0 25 50 75 100 125
T
, TEMPERATURE (°C)
amb
Figure 4. Detection threshold versus temperature.
SL01345
200
V
= VSH – V
S(HYS)
(VCC RISING – VCC FALLING)
150
100
, DETECTION HYSTERESIS (mV)V
50
S(HYS)
0
–50 –25 0 25 50 75 100 125
SL
T
, TEMPERATURE (°C)
amb
Figure 5. Detection hysteresis versus temperature.
5.0
T
= 25 °C
AMB
TYPICAL CHARACTERISTIC.
4.0
DETECTION AND RELEASE
VOLTAGE POINTS DEPEND ON
THE SPECIFIC DEVICE TYPE.
3.0
2.0
, OUTPUT VOLTAGE (V)V
OUT
1.0
0
0 1.0 2 .0 3.0 4.0 5.0 6.0
VDD, SUPPLY VOLTAGE (V)
V
S(HYS)
SL
DETECTION (V )
Figure 7. Output voltage versus supply voltage.
SL01346
SH
RELEASE (V )
SL01348
3.0
VDS = 0.5 V
2.5
2.0
N-CHANNEL
1.5
1.0
, OUTPUT FET CURRENT (mA)I
0.5
DS
0
–50 –25 0 25 50 75 100 125
T
amb
P-CHANNEL
, TEMPERATURE (°C)
Figure 6. Output FET current versus temperature.
0.6
T
= 25 °C
AMB
0.5
µ
0.4
0.3
0.2
, SUPPLY CURRENT ( A)I
DD
0.1
0
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 100
VDD, SUPPLY VOLTAGE (V)
Figure 8. Supply current versus supply voltage.
SL01347
SL01349
2001 Jun 19
5
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