lt6700hvcs6-3-trpbf Linear Technology Corporation, lt6700hvcs6-3-trpbf Datasheet

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lt6700hvcs6-3-trpbf

Manufacturer Part Number
lt6700hvcs6-3-trpbf
Description
Micropower, Low Voltage, Dual Comparator With 400mv Reference
Manufacturer
Linear Technology Corporation
Datasheet
FEATURES
APPLICATIONS
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L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Over-The-Top
is a registered trademark of Linear Technology Corporation. ThinSOT is a trademark of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
ALKALINE
AA CELLS
Internal 400mV Reference
Total Threshold Error: ±1.25% Max at 25°C
Inputs and Outputs Operate to 36V
Wide Supply Range: 1.4V to 18V
Specifi ed for –55°C to 125°C Temperature Range
Low Quiescent Current: 6.5μA Typ at 5V
Internal Hysteresis: 6.5mV Typ
Low Input Bias Current: ±10nA Max
Over-The-Top
Open-Collector Outputs Allow Level Translation
Choice of Input Polarities: LT6700-1/LT6700-2/
LT6700-3/LT6700HV-1/LT6700HV-2/LT6700HV-3
Available in Low Profi le (1mm) SOT-23 (ThinSOT™)
and 2mm × 3mm DFN Packages
Battery-Powered System Monitoring
Threshold Detectors
Window Comparators
Relay Driving
Industrial Control Systems
Handheld Instruments
Automotive Monitor and Controls
+
+
0.1μF
®
Micropower Battery Monitor
1M
63.4k
261k
Input also Includes Ground
LT6700-3
+
+
V
REFERENCE
R
= 400mV
COMP B
COMP A
V
S
6700123 TA01
1M
1M
MONITOR CONSUMES ~10μA
HYSTERESIS IS APPROXIMATELY
2% OF TRIP VOLTAGE
V
V
V
1.4V (MIN)
3V (NOM)
BATT
BATT
BATT
> 1.6V
> 2V
LT6700-1/LT6700-2/LT6700-3/
DESCRIPTION
The LT
LT6700HV-2/LT6700HV-3 combine two micropower, low
voltage comparators with a 400mV reference in a 6-lead
SOT-23 or tiny DFN package. Operating with supplies from
1.4V up to 18V, these devices draw only 6.5μA, making
them ideal for low voltage system monitoring. Hysteresis
is included in the comparators, easing design requirements
to insure stable output operation.
The comparators each have one input available externally;
the other inputs are connected internally to the reference.
The comparator outputs are open collector and the output
load can be referred to any voltage up to 18V (36V for
LT6700HV), independent of supply voltage. The output
stage sinking capability is guaranteed to be greater than
5mA over temperature.
The three versions of this part differ by the polar-
ity of the available comparator inputs. The LT6700-1/
LT6700HV-1 has one inverting input and one noninvert-
ing input, making it suitable for use as a window com-
parator. The LT6700-2/LT6700HV-2 has two inverting
inputs and the LT6700-3/LT6700HV-3 has two nonin-
verting inputs. All versions are offered in commercial,
industrial and automotive temperature ranges.
Micropower, Low Voltage,
LT6700HV-1/LT6700HV-2/
®
Dual Comparator with
6700-1/LT6700-2/LT6700-3/LT6700HV-1/
406
404
402
400
398
396
394
392
390
–60
TWO TYPICAL PARTS
COMP A AND B
V
400mV Reference
Comparator Thresholds
S
–40 –20 0
= 5V
vs Temperature
#1A
#1B
TEMPERATURE (°C)
20 40 60 80 100
#2A
#2B
FALLING INPUT
RISING INPUT
LT6700HV-3
6700123 TA02
120
6700123ff
1

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lt6700hvcs6-3-trpbf Summary of contents

Page 1

... Automotive Monitor and Controls L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Over-The-Top is a registered trademark of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION Micropower Battery Monitor ...

Page 2

... JA SOLDERED EXPOSED PAD (PIN 7) INTERNALLY CONNECTED TO GND (PCB CONNECTION OPTIONAL) 2 (Note 1) Specifi ed Temperature Range (Note 5) LT6700CS6/LT6700HVCS6/ LT6700CDCB-1/-2/-3 .............................. 0°C to 70°C LT6700IS6/LT6700HVIS6/ LT6700IDCB-1/-2/-3 ............................ –40°C to 85°C LT6700HS6/LT6700HVHS6/ LT6700HDCB-1/-2/-3 ....................... –40°C to 125°C LT6700MPDCB-1/-2/-3 .................... –55°C to 125°C Maximum Junction Temperature S6 Package ....................................................... 150° ...

Page 3

... LT6700IS6-2#TRMPBF LT6700IS6-2#TRPBF LT6700HVIS6-2#TRMPBF LT6700HVIS6-2#TRPBF LT6700HS6-2#TRMPBF LT6700HS6-2#TRPBF LT6700HVHS6-2#TRMPBF LT6700HVHS6-2#TRPBF LT6700CS6-3#TRMPBF LT6700CS6-3#TRPBF LT6700HVCS6-3#TRMPBF LT6700HVCS6-3#TRPBF LT6700IS6-3#TRMPBF LT6700IS6-3#TRPBF LT6700HVIS6-3#TRMPBF LT6700HVIS6-3#TRPBF LT6700HS6-3#TRMPBF LT6700HS6-3#TRPBF LT6700HVHS6-3#TRMPBF LT6700HVHS6-3#TRPBF LT6700CDCB-1#TRMPBF ...

Page 4

LT6700-1/LT6700-2/LT6700-3/ LT6700HV-1/LT6700HV-2/ LT6700HV-3 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER V Rising Input Threshold Voltage (Note 6) TH(R) V Falling Input Threshold Voltage (Note 6) TH(F) HYS HYS = V – V TH(R) TH(F) I Input Bias Current B V Output Low Voltage ...

Page 5

ELECTRICAL CHARACTERISTICS l The denotes the specifi cations which apply over the temperature range of 0°C ≤ T otherwise specifi ed (Notes 4, 5). SYMBOL PARAMETER HYS HYS = V – V TH(R) TH(F) I Input Bias Current B V ...

Page 6

LT6700-1/LT6700-2/LT6700-3/ LT6700HV-1/LT6700HV-2/ LT6700HV-3 ELECTRICAL CHARACTERISTICS l The denotes the specifi cations which apply over the temperature range of –40°C ≤ T unless otherwise specifi ed (Notes 4, 5). SYMBOL PARAMETER V Rising Input Threshold Voltage (Note 6) TH(R) V Falling ...

Page 7

ELECTRICAL CHARACTERISTICS l The denotes the specifi cations which apply over the temperature range of –55°C ≤ T unless otherwise specifi ed (Notes 4, 5). SYMBOL PARAMETER I Output Leakage Current OFF I Supply Current 25°C, (LT6700HV-1/LT6700HV-2/LT6700HV-3) ...

Page 8

LT6700-1/LT6700-2/LT6700-3/ LT6700HV-1/LT6700HV-2/ LT6700HV-3 ELECTRICAL CHARACTERISTICS The l denotes the specifi cations which apply over the temperature range of 0°C ≤ T unless otherwise specifi ed (Notes 4, 5). SYMBOL PARAMETER V Rising Input Threshold Voltage TH(R) (Note 6) V Falling ...

Page 9

ELECTRICAL CHARACTERISTICS l The denotes the specifi cations which apply over the temperature range of –40°C ≤ T unless otherwise specifi ed (Notes 4, 5). SYMBOL PARAMETER I Supply Current S The l denotes the specifi cations which apply over ...

Page 10

LT6700-1/LT6700-2/LT6700-3/ LT6700HV-1/LT6700HV-2/ LT6700HV-3 PIN FUNCTIONS V S LT6700-1 LT6700HV-1 COMP B – –INB OUTB + V 400mV S REFERENCE COMP A – OUTA + +INA 6700123 PF01 GND OUTA: Open-Collector Output of Comparator Section A. This pin provides drive for ...

Page 11

TYPICAL PERFORMANCE CHARACTERISTICS Distribution of Rising Input Threshold Voltage 25° 394 396 398 400 402 404 406 RISING INPUT THRESHOLD VOLTAGE (mV) 6700123 ...

Page 12

LT6700-1/LT6700-2/LT6700-3/ LT6700HV-1/LT6700HV-2/ LT6700HV-3 TYPICAL PERFORMANCE CHARACTERISTICS Minimum Supply Voltage 1 0 –1 –2 – 25° 85°C – 125° –55°C A –5 0.9 1.1 1.3 1.5 1.7 1.9 SUPPLY VOLTAGE ...

Page 13

TYPICAL PERFORMANCE CHARACTERISTICS Output Saturation Voltage vs Output Sink Current 1000 T = –40° 1. 12V 18V S 100 10 1 0.001 0.01 0 100 ...

Page 14

LT6700-1/LT6700-2/LT6700-3/ LT6700HV-1/LT6700HV-2/ LT6700HV-3 APPLICATIONS INFORMATION The LT6700-1/LT6700-2/LT6700-3/LT6700HV-1/ LT6700HV-2/LT6700HV-3 devices are a family of dual micropower comparators with a built-in 400mV refer- ence. Features include wide supply voltage range (1.4V to 18V), Over-The-Top input and output range, 2% accurate rising input ...

Page 15

APPLICATIONS INFORMATION Power Supplies The comparator family core circuitry operates from a single 1.4V to 18V supply. A minimum 0.1μF bypass capacitor is required between the V pin and GND. When an output S load is connected to the supply ...

Page 16

LT6700-1/LT6700-2/LT6700-3/ LT6700HV-1/LT6700HV-2/ LT6700HV-3 APPLICATIONS INFORMATION ing into spec” condition, as with the examples in Figure 1), the nominal resistor values are selected as follows: R1 ≤ 400k (this sets the divider current >> • (1.02 • ...

Page 17

APPLICATIONS INFORMATION Instrumentation Grade Pulse Width Modulator (PWM) Comparators with hysteresis are frequently employed to make simple oscillator structures, and the LT6700/ LT6700HV lends itself nicely to forming a charge-balancing PWM function. The circuit shown in Figure 3 forms a ...

Page 18

LT6700-1/LT6700-2/LT6700-3/ LT6700HV-1/LT6700HV-2/ LT6700HV-3 PACKAGE INFORMATION 1.65 ±0.05 3.55 ±0.05 (2 SIDES) 2.15 ±0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS PIN 1 BAR TOP MARK (SEE NOTE 6) 0.200 REF NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 ...

Page 19

... JEDEC PACKAGE REFERENCE IS MO-193 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LT6700-1/LT6700-2/LT6700-3/ ...

Page 20

... R2 R1 1μF 150k 249k 6700123 TA04 R1 = 400k/(V AT LOW – 0.4) BATT R2 = 400k/(V AT MAX – 0.4) BATT HYSTERESIS ZONES APPROXIMATELY 2% OF TRIP VOLTAGE PowerPath IS A TRADEMARK OF LINEAR TECHNOLOGY CORPORATION 48V Status Monitor + 33k 1.74M V S +INA OUTA V 7.87k LT6700-1 IN –INB OUTB GND 0.1μ ...

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