NCS2220A D

NCS2220A
Low Voltage Comparator
The NCS2220A is an industry first sub−one volt, low power dual
comparator. This device consumes only 0.85 mA per Comparator of
supply current. It is guaranteed to operate at a low voltage of 0.85 V
which allows it to be used in systems that require less than 1.0 V and is
fully operational up to 6.0 V. Additional features include no output
phase inversion with overdriven inputs, internal hysteresis, which
allows for clean output switching, and rail−to−rail input and output
performance. The NCS2220A is available in the tiny UDFN 1.6 X 1.6
package.
Features
•
•
•
•
•
•
•
Operating Voltage of 0.85 V to 6.0 V
Rail−to−Rail Input/Output Performance
Low Supply Current of 7.5 mA per Comparator Typ
No Phase Inversion with Overdriven Input Signals
Internal Hysteresis
Propagation Delay of 0.5 ms
These are Pb−Free Devices
April, 2013 − Rev. 2
8
CZ
M
G
1
CZ MG
G
= Specific Device Code
= Date Code
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Single Cell NiCd/NiMH Battery Powered Applications
Cellular Telephones
Alarm and Security Systems
Personal Digital Assistants
© Semiconductor Components Industries, LLC, 2013
MARKING
DIAGRAMS
1
UDFN8 1.6 X 1.6
MU SUFFIX
CASE 517AC
Typical Applications
•
•
•
•
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Device
Package
Shipping†
NCS2220AMUT1G
UDFN8
(Pb−Free)
3000/
Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
1
Publication Order Number:
NCS2220A/D
NCS2220A
OUT1 1
8
VCC
IN−1 2
7
OUT2
6
IN−2
5
IN+2
IN+1 3
2220A
VEE 4
Top View
NOTE: The NCS2220A has three exposed pads on the bottom side which may be used to reduce thermal
resistance by soldering to a copper heat−spreader. Electrically the exposed pads must be allowed to float.
Figure 1. Pin Connections
MAXIMUM RATINGS
Symbol
Value
Unit
Supply Voltage Range (VCC to VEE)
Rating
VS
6.0
V
Non−inverting/Inverting Input to VEE
−
−0.2 to (VCC + 0.2)
V
Operating Junction Temperature
TJ
150
°C
Operating Ambient Temperature
TA
−40 to +105
°C
Storage Temperature Range
Tstg
−65 to +150
°C
Output Short Circuit Duration Time (Note 1)
tS
Indefinite
s
ESD Tolerance (Note 2)
Human Body Model
Machine Model
−
Thermal Resistance, Junction−to−Ambient
UDFN
RqJA
2000
200
350
V
°C/W
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. The maximum package power dissipation limit must not be exceeded.
TJ(max) * TA
PD +
RqJA
2. ESD data available upon request.
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2
NCS2220A
ELECTRICAL CHARACTERISTICS (For all values VCC = 0.85 V to 6.0 V, VEE = 0 V, TA = 25°C, unless otherwise noted.) (Note 3)
Characteristics
Symbol
Min
Typ
Max
Unit
VHYS
2.0
4.5
20
mV
Input Hysteresis TA = 25°C
Input Offset Voltage
VCC = 0.85 V
TA = 25°C
TA = −40°C to 105°C
VCC = 3.0 V
TA = 25°C
TA = −40°C to 105°C
VCC = 6.0 V
TA = 25°C
TA = −40°C to 105°C
VIO
Common Mode Voltage Range
VCM
Output Short−Circuit Sourcing or Sinking
Common Mode Rejection Ratio VCM = VCC
Input Bias Current
Power Supply Rejection Ratio DVS = 2.575 V
mV
−10
−12
0.5
−
+10
+12
−6.0
−8.0
0.5
−
+6.0
+8.0
−5.0
−7.0
0.5
−
+5.0
+7.0
−
VEE to VCC
−
V
ISC
−
60
−
mA
CMRR
53
70
−
dB
IIB
−
1.0
−
pA
PSRR
45
80
−
dB
Supply Current per Comparator
VCC = 0.85 V
TA = 25°C
TA = −40°C to 105°C
VCC = 3.0 V
TA = 25°C
TA = −40°C to 105°C
VCC = 6.0 V
TA = 25°C
TA = −40°C to 105°C
ICC
Output Voltage High
VCC = 0.85 V, Isource = 0.5 mA
TA = 25°C
TA = −40°C to 105°C
VCC = 3.0 V, Isource = 3.0 mA
TA = 25°C
TA = −40°C to 105°C
VCC = 6.0 V, Isource = 5.0 mA
TA = 25°C
TA = −40°C to 105°C
VOH
Output Voltage Low
VCC = 0.85 V, Isink = 0.5 mA
TA = 25°C
TA = −40°C to 105°C
VCC = 3.0 V, Isink = 3.0 mA
TA = 25°C
TA = −40°C to 105°C
VCC = 6.0 V, Isink = 5.0 mA
TA = 25°C
TA = −40°C to 105°C
VOL
mA
−
7.5
−
15
17
−
8.0
−
15
17
−
9.0
−
15
17
V
VCC − 0.25
VCC − 0.275
VCC − 0.12
−
−
VCC − 0.3
VCC − 0.35
VCC − 0.12
−
−
VCC − 0.3
VCC − 0.35
VCC − 0.17
−
−
V
−
VEE + 0.10
−
VEE + 0.25
VEE + 0.275
−
VEE + 0.12
−
VEE + 0.3
VEE + 0.35
−
VEE + 0.12
−
VEE + 0.3
VEE + 0.35
tPHL
tPLH
−
−
0.5
0.5
−
−
Output Fall Time VCC = 6.0 V, CL = 50 pF (Note 4)
tFALL
−
20
−
ns
Output Rise Time VCC = 6.0 V, CL = 50 pF (Note 4)
tRISE
−
16
−
ns
Propagation Delay 20 mV Overdrive, CL = 15 pF
3. The limits over the extended temperature range are guaranteed by design only.
4. Input signal: 1 kHz, squarewave signal with 10 ns edge rate.
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3
ms
NCS2220A
1000
VCC = 5.0 V
11
ICC, SUPPLY CURRENT (mA)
ICC, SUPPLY CURRENT (mA)
12
10
9.0
8.0
7.0
6.0
−50
0
−25
25
50
75
VCC = 5.0 V
VCC = 2.7 V
10
0.1
300
Figure 1. Supply Current versus
Temperature/Comparator
Figure 2. Supply Current versus Output Transition
Frequency/Comparator
VCC − VOH, OUTPUT VOLTAGE
HIGH STATE (mV)
10
8.0
6.0
4.0
TA = 85°C
TA = 25°C
2.0
TA = −40°C
2.0
1.0
3.0
4.0
5.0
VCC = 5.0 V
TA = 25°C
100
10
1.0
0.1
0.01
6.0
0.1
1.0
10
VCC, SUPPLY VOLTAGE (V)
Isource, OUTPUT SOURCE CURRENT (mA)
Figure 3. Supply Current versus Supply
Voltage/Comparator
Figure 4. Output Voltage
High State versus Output Source Current
1000
VCC = 5.0 V
TA = 25°C
100
10
1.0
0.1
0.01
100
FREQUENCY (kHz)
1000
0
10
1.0
TA, AMBIENT TEMPERATURE (°C)
0.1
1.0
10
VOL, OUTPUT VOLTAGE LOW STATE (mV)
ICC, SUPPLY CURRENT (mA)
VOL, OUTPUT VOLTAGE LOW STATE (mV)
100
1.0
0.01
100
12
0
TA = 25°C
160
140
VCC = 5.0 V
ILOAD = 4.0 mA
120
100
80
60
40
20
0
−100
−50
0
50
100
Isink, OUTPUT SINK CURRENT, (mA)
TA, AMBIENT TEMPERATURE (°C)
Figure 5. Output Voltage
Low State versus Output Sink Current
Figure 6. Output Voltage
Low State versus Temperature
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4
150
4.95
1.0
VCC = 5.0 V
ILOAD = 4.0 mA
4.94
PROPAGATION DELAY (ms)
VOH, OUTPUT VOLTAGE HIGH STATE (mV)
NCS2220A
4.93
4.92
4.91
4.90
4.89
4.88
−100
−50
0
50
100
0.8
tPLH
0.6
tPHL
0.4
0.2
VCC = 5.0 V
Input Overdrive = 50 mV
0
−50
150
Figure 7. Output Voltage
High State versus Temperature
25
1.2
600
PROPAGATION DELAY (ms)
OUTPUT RESPONSE TIME (ns)
0
tLH
500
400
tHL
300
200
TA = 25°C
Input Overdrive = 100 mV
100
0
1.0
2.0
3.0
4.0
50
75
5.0
1.0
0.8
0.6
tPLH
0.4
tPHL
0.2
0
6.0
VCC = 2.7 V
TA = 25°C
0
VCC, SUPPLY VOLTAGE (V)
50
100
150
INPUT OVERDRIVE (mV)
Figure 9. Output Response Time versus
Supply Voltage
Figure 10. Propagation Delay versus Input
Overdrive
VCC = 5.0 V
TA = 25°C
tPLH
0.6
VCC
0.5
2 V/Div
PROPAGATION DELAY (ms)
0.8
0.7
0.4
0.3
tPHL
0.2
Output
0.1
0
Input Overdrive = 50 mV
0
50
100
100
Figure 8. Propagation Delay versus
Temperature
700
0
−25
TA, AMBIENT TEMPERATURE (°C)
TA, AMBIENT TEMPERATURE (°C)
150
200
INPUT OVERDRIVE (mV)
10 ms/Div
Figure 12. Powerup Delay
Figure 11. Propagation Delay versus Input
Overdrive
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5
200
VCM, INPUT COMMON MODE VOLTAGE RANGE (V)
NCS2220A
3.0
TA = 25°C
2.0
1.0
0
−1.0
−2.0
−3.0
1.0
2.0
3.0
4.0
5.0
6.0
VS, SUPPLY VOLTAGE (V)
Figure 13. Input Common Mode Voltage Range
versus Supply Voltage
OPERATING DESCRIPTION
The NCS2220A is an industry first sub−one volt, low
power comparator. This device is designed for rail−to−rail
input and output performance. This device consumes only
7.5ĂmA/Comparator of supply current while achieving a
typical propagation delay of 0.5 ms at a 20 mV input
overdrive. Figures 10 and 11 show propagation delay with
various input overdrives. This comparator is guaranteed to
operate at a low voltage of 0.85 V up to 6.0 V. This is
accomplished by the use of a modified analog CMOS
process that implements depletion MOSFET devices. The
common−mode input voltage range extends 0.1 V beyond
the upper and lower rail without phase inversion or other
adverse effects. This device has a typical internal hysteresis
of "8.0 mV. This allows for greater noise immunity and
clean output switching.
Output Stage
The NCS2220A has a complementary P and N Channel
output stage that has capability of driving a rail−to−rail
output swing with a load ranging up to 5.0 mA. It is designed
such that shoot−through current is minimized while
switching. This feature eliminates the need for bypass
capacitors under most circumstances.
VCC
IN (+)
Output
IN (−)
VEE
Figure 14. NCS2220A Complementary Output Configuration
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6
NCS2220A
VCC
Rx
IN (−)
Cx
VO
OUT
IN (+)
R2
R1
The oscillation frequency can be programmed as follows:
1
f+1+
T
2.2 RxCx
Figure 15. Schmitt Trigger Oscillator
VCC
1M
R1
100 pF
VCC
IN (−)
t0
R2
1M
VO
OUT
IN (+)
C1
R3
The resistor divider R1 and R2 can be used to
set the magnitude of the input pulse. The pulse
width is set by adjusting C1 and R3.
Figure 16. One−Shot Multivibrator
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7
t0
t1
0
NCS2220A
+5 V
100 k
IN (−)
100 k
+3 V Logic Output
OUT
IN (+)
+5 V Logic Input
This circuit converts 5 V logic to 3 V logic. Using the
NCS2220/A allows for full 5 V logic swing without creating
overvoltage on the 3 V logic input.
Figure 17. Logic Level Translator
VCC
IN (−)
OUT
IN (+)
100 mV
Figure 18. Zero−Crossing Detector
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8
NCS2220A
PACKAGE DIMENSIONS
UDFN8, 1.6x1.6, 0.4P
CASE 517AC−01
ISSUE A
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED TERMINAL
AND IS MEASURED BETWEEN 0.25 AND
0.30 mm FROM TERMINAL.
4. COPLANARITY APPLIES TO THE EXPOSED
PAD AS WELL AS THE TERMINALS.
5. EXPOSED PADS CONNECTED TO DIE FLAG.
USED AS TEST CONTACTS.
A
B
D
2X
0.10 C
ÉÉ
ÉÉ
PIN ONE
REFERENCE
2X
E
(A3)
0.10 C
DIM
A
A1
A3
b
D
D2
E
E2
e
K
L
TOP VIEW
(A3)
A
0.10 C
8X
0.08 C
SEATING
PLANE
SIDE VIEW
MILLIMETERS
MIN
NOM MAX
0.45
0.50
0.55
0.00
0.03
0.05
0.127 REF
0.15
0.20
0.25
1.60 BSC
0.70
0.80
0.90
1.60 BSC
0.40
0.50
0.60
0.40 BSC
0.20
−−−
−−−
0.20
0.30
0.40
C
A1
D2
8X
e
L
1
4
SOLDERING FOOTPRINT*
E2
8X
K
8
5
0.490
0.0193
0.924
0.0364
8X b
BOTTOM VIEW
0.10 C A B
0.05 C
NOTE 3
0.902
0.0355
0.200
0.0079
0.400
0.0157
PITCH
0.502
0.0197
SCALE 20:1
mm Ǔ
ǒinches
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
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are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks,
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particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without
limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications
and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC
does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for
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NCS2220A/D