The NE56610/11/12-XX series is a family of devices designed to
generate a reset signal for a variety of microprocessor and logic
systems. Accurate reset signals are generated during momentary
power interruptions or when ever power supply voltages sag to
intolerable levels. The NE56610/11/12 incorporates an internal timer
to provide reset delay and ensure proper operating voltage has been
attained. In addition, a manual reset pin (M/R) is available. An Open
Collector output topology provides adaptability for a wide variety of
logic and microprocessor systems.
NE56610/11/12 is available in the SOT23-5 surface mount package.
FEATURES
•
12 V
DC
maximum operating voltage
•
Low operating voltage (0.65 V)
•
Manual Reset input
•
SOT23-5 surface mount package
•
Offered in reset thresholds of 2.5, 2.7, 2.9, 3.9, 4.2, 4.5 V
DC
•
Internal reset delay timer
–
NE56610 (50 ms typical)
–
NE56611 (100 ms typical)
–
NE56612 (200 ms typical)
APPLICATIONS
•
Microcomputer systems
•
Logic systems
•
Battery monitoring systems
•
Back-up power supply circuits
•
Voltage detection circuits
•
Mechanical reset circuits
SIMPLIFIED DEVICE DIAGRAM
V
DD
M/R 1
V
CC
5
R
RESET
DELAY
R
V
REF
4
V
OUT
RESET
NE56610/11/12-XX
R
PU
V
DD
CPU
3
GND
2 SUB
GND
SL01362
Figure 1. Simplified device diagram.
2001 Jun 19
2
853–2246 26559
Philips Semiconductors
Product data
System reset
NE56610/11/12-XX
ORDERING INFORMATION
TYPE NUMBER
NE56610-XXGW
NE56611-XXGW
NE56612-XXGW
PACKAGE
NAME
SOT23-5, SOT25, SO5
SOT23-5, SOT25, SO5
SOT23-5, SOT25, SO5
DESCRIPTION
plastic small outline package; 5 leads
(see dimensional drawing)
plastic small outline package; 5 leads
(see dimensional drawing)
plastic small outline package; 5 leads
(see dimensional drawing)
TEMPERATURE
RANGE
–20 to +75
°C
–20 to +75
°C
–20 to +75
°C
TYPICAL
RESET DELAY
50 ms
100 ms
200 ms
NOTE:
Each device has six detection voltage options, indicated by the XX on the ‘Type number’.
XX
25
27
29
39
42
45
DETECT VOLTAGE (Typical)
2.5 V
2.7 V
2.9 V
3.9 V
4.2 V
4.5 V
Part number marking
Each device 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, ACNB is device ACN (the NE56610-25 reset) produced in time period ‘B’.
Part number
NE56610-25
NE56610-27
NE56610-29
NE56610-39
NE56610-42
NE56610-45
Marking
ACNx
ACMx
ACLx
ACKx
ACJx
ACHx
Part number
NE56611-25
NE56611-27
NE56611-29
NE56611-39
NE56611-42
NE56611-45
Marking
ACVx
ACUx
ACTx
ACSx
ACRx
ACPx
Part number
NE56612-25
NE56612-27
NE56612-29
NE56612-39
NE56612-42
NE56612-45
Marking
ACBx
ACAx
ACZx
ACYx
ACXx
ACWx
PIN CONFIGURATION
PIN DESCRIPTION
PIN
SYMBOL
M/R
SUB
GND
V
OUT
V
CC
DESCRIPTION
Manual Reset input.
Connect to ground when not using.
Substrate pin. Connect to ground.
Ground
Reset HIGH output pin
Positive power supply input
1
2
3
4
V
OUT
M/R
1
5
V
CC
SUB
2
NE56610-XX
NE56611-XX
NE56612-XX
GND
3
4
5
SL01361
Figure 2. Pin configuration.
MAXIMUM RATINGS
SYMBOL
V
CC
V
M/R
T
amb
T
stg
P
Power supply voltage
Manual Reset input voltage
Operating ambient temperature
Storage temperature
Power dissipation
PARAMETER
MIN.
–0.3
–0.3
–20
–40
–
MAX.
12
12
75
125
150
UNIT
V
V
°C
°C
mW
2001 Jun 19
3
Philips Semiconductors
Product data
System reset
NE56610/11/12-XX
ELECTRICAL CHARACTERISTICS
Characteristics noted with M/R pin connected to ground. Typical values reflect appropriate average value at T
amb
= 25
°C.
SYMBOL
V
S
PARAMETER
Threshold detection
CONDITIONS
V
CC
falling; R
L
= 470
Ω;
V
OL
≤
0.4 V
TEST
CIRCUIT
PART #
–45
–42
–39
–29
–27
–25
∆V
S
∆T
C
/∆V
S
V
OL
I
LO
I
CCL
I
CCH
t
DLH
Hysteresis
Threshold temperature
coefficient
LOW-level output voltage
Output leakage current
Circuit current (output LOW)
Circuit current (output HIGH)
Reset delay time HIGH
(Note 1)
∆V
S
= V
SH
(rising V
CC
) – V
SL
(falling V
CC
);
R
L
= 470
Ω
R
L
= 470
Ω;
–20
°C ≤
T
amb
≤
+75
°C
V
CC
= V
S(min)
– 0.05 V; R
L
= 470
Ω
V
CC
= 10 V
V
CC
= V
S(min)
– 0.05 V; R
L
=
∞
V
CC
= V
S(typ)
/ 0.85 V; R
L
=
∞
R
L
= 4.7 kΩ; C
L
= 100 pF
2
Fig. 21
t
DHL
V
OPL
I
OL1
I
OL2
V
M/RH
I
M/RH
V
M/RL
t
M/R
Reset delay time LOW
(Note 2)
Operating supply voltage
Output sink current 1
Output sink current 2
HIGH-level M/R threshold
voltage (Note 3)
HIGH-level M/R threshold
current
LOW-level M/R threshold
voltage
M/R pulse width (Note 4)
V
M/RH
= 2.0 V
R
L
= 4.7 kΩ; C
L
= 100 pF
R
L
= 4.7 kΩ; V
OL
≤
0.4 V
V
CC
= V
S(min)
– 0.05 V; R
L
= 0
V
CC
= V
S(min)
– 0.05 V; R
L
= 0;
–20
°C ≤
T
amb
≤
+75
°C
1
Fig.
Fig 20
1
Fig. 20
All
All
All
All
All
All
NE56610
NE56611
NE56612
MIN.
4.3
4.0
3.7
2.75
2.55
2.35
30
–
–
–
–
–
30
60
120
–
–
–8.0
–6.0
2.0
–
–0.3
15
TYP.
4.5
4.2
3.9
2.90
2.70
2.50
50
±0.01
0.01
–
300
15
50
100
200
20
0.65
–
–
–
10
–
–
MAX.
4.7
4.4
4.1
3.05
2.85
2.65
100
–
0.4
±0.1
500
25
75
150
300
–
0.85
–
–
–
60
0.8
–
UNIT
V
V
V
V
V
V
mV
%/°C
V
µA
µA
µA
ms
ms
ms
µs
V
mA
mA
V
µA
V
µs
All
All
All
All
All
All
All
All
NOTES:
1. t
DLH
measured with V
CC
= (V
S(typ)
– 0.4 V) and abruptly transitioning to (V
S(typ)
+ 0.4 V). t
DLH
is the duration from V
CC
transition HIGH to
output transition HIGH.
2. t
DHL
measured with V
CC
= (V
S(typ)
+ 0.4 V) and abruptly transitioning to (V
S(typ)
– 0.4 V). t
DHL
is the duration from V
CC
transition LOW to
output transition LOW.
3. Ramp M/R voltage until output RESET goes LOW.
4. Minimum M/R pulse width for detection.
2001 Jun 19
4
Philips Semiconductors
Product data
System reset
NE56610/11/12-XX
TYPICAL PERFORMANCE CURVES
0.10
V
S
, NORMALIZED DETECTION (V)
I
CCL
, CIRCUIT ON CURRENT (
µ
A)
THRESHOLD NORMALIZED TO 25
°C
R
L
(PULL-UP TO V
CC
) 470
Ω
V
OL
≤
0.4 V
0.05
500
V
CC
= V
S(min)
– 0.05 V
R
L
=
∞
400
0.00
300
–0.05
200
–0.10
–50
–25
0
25
50
75
100
125
100
–50
–25
0
25
50
75
100
125
T
amb
, AMBIENT TEMPERATURE
(°C)
T
amb
, AMBIENT TEMPERATURE (°C)
SL01363
SL01334
Figure 3. Normalized detection versus temperature.
Figure 4. Circuit ON current versus temperature.
80
∆
V
S
, DETECTION HYSTERESIS (mV)
I
CCH
, CIRCUIT OFF CURRENT (
µ
A)
∆V
S
= V
SH
– V
SL
R
L
(PULL-UP TO V
CC
) = 470
Ω
70
30
V
CC
= V
S(typ)
+ 0.85 V
R
L
=
∞
25
60
20
50
15
40
–50
–25
0
25
50
75
100
125
10
–50
–25
0
25
50
75
100
125
T
amb
, AMBIENT TEMPERATURE (°C)
T
amb
, AMBIENT TEMPERATURE (°C)
SL01365
SL01366
Figure 5. Detection hysteresis versus temperature.
Figure 6. Circuit OFF current versus temperature.
120
V
CC
= V
S(min)
– 0.05 V
R
L
(PULL-UP TO V
CC
) = 470
Ω
V
OL
, LOW-LEVEL OUTPUT (mV)
100
V
OPL
, OPERATING SUPPLY (mV)
900
V
OL
≤
0.4 V
R
L
= 4.7 kΩ
800
700
80
600
60
500
40
–50
–25
0
25
50
75
100
125
400
–50
–25
0
25
50
75
100
125
T
amb
, AMBIENT TEMPERATURE (°C)
T
amb
, AMBIENT TEMPERATURE (°C)
SL01367
SL01368
Figure 7. LOW-level output voltage versus temperature.
Figure 8. Operating supply voltage versus temperature.
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