TSM931 TOUCHSTONE [Touchstone Semiconductor Inc], TSM931 Datasheet

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TSM931

Manufacturer Part Number
TSM931
Description
Ultra Low-Power Single/Dual-Supply Comparators with Reference
Manufacturer
TOUCHSTONE [Touchstone Semiconductor Inc]
Datasheet
FEATURES
♦ Alternate source for MAX931-MAX934
♦ Ultra-Low Quiescent Current Over Temperature
♦ Single or Dual Power Supplies:
♦ Input Voltage Range Includes Negative Supply
♦ 12μs Propagation Delay at 10mV Overdrive
♦ Push-pull TTL/CMOS-Compatible Outputs
♦ Crowbar-Current-Free Switching
♦ Continuous Source Current Capability: 40mA
♦ Internal 1.182V ±2% Reference:
♦ Adjustable Hysteresis:
APPLICATIONS
Threshold Detectors
Window Comparator
Level Translators
Oscillator Circuits
Battery-Powered Systems
TYPICAL APPLICATION CIRCUIT
Ultra Low-Power Single/Dual-Supply Comparators with Reference
The Touchstone Semiconductor logo is a registered
trademark of Touchstone Semiconductor, Incorporated.
TSM931 Single+Reference: 4μA (max)
TSM932/TSM933 Dual+Reference: 6μA (max)
TSM934 Quad+Reference: 8.5μA (max)
Single: +2.5V to +11V
Dual: ±1.25V to ±5.5V
TSM931/TSM932/TSM933
TSM931/TSM932/TSM933
A 5V, Low-Parts-Count Window Detector
© 2012 Touchstone Semiconductor, Inc. All rights reserved.
TSM931
TSM932
TSM933
TSM934
DESCRIPTION
The TSM931–TSM934 family of single/dual/quad,
low-voltage, micropower analog comparators is
electrically and form-factor identical to the MAX931-
MAX934 family of analog comparators. Ideal for 3V or
5V single-supply applications, the TSM931–TSM934
family can operate from single +2.5V to +11V
supplies or from ±1.25V to ±5.5V dual supplies. The
single TSM931 draws less than 4μA (max) supply
current over temperature. The dual TSM932/933 and
the quad TSM934 each draw less than 3μA per
comparator over temperature.
All comparators in this family exhibit an input voltage
range from the negative supply rail to within 1.3V of
the positive supply. In addition, the comparators’
push-pull output stages are TTL/CMOS compatible
and capable of sinking and sourcing current. The
TSM931/TSM932/TSM933
internal 1.182V ±2% voltage reference. Without
complicated
requiring two additional resistors, adding external
hysteresis via a separate pin is available on the
TSM931, the TSM932, and the TSM933.
PART
TSM931C
TSM932C
TSM933C
TSM934C
TSM931E
TSM932E
TSM933E
TSM934E
REFERENCE
PART
INTERNAL
Yes
Yes
Yes
Yes
TSM931-TSM934
feedback
TEMPERATURE
-40ºC to 85ºC
-40ºC to 85ºC
-40ºC to 85ºC
-40ºC to 85ºC
0ºC to 70ºC
0ºC to 70ºC
0ºC to 70ºC
0ºC to 70ºC
COMPARATORS
PER PACKAGE
RANGE
configurations
each
1
2
2
4
8-Pin MSOP/SOIC
8-Pin MSOP/SOIC
8-Pin MSOP/SOIC
incorporates
16-Pin SOIC
PACKAGE
HYSTERESIS
INTERNAL
and
Yes
Yes
Yes
No
Page 1
only
an

Related parts for TSM931

TSM931 Summary of contents

Page 1

... TSM931–TSM934 family can operate from single +2.5V to +11V supplies or from ±1.25V to ±5.5V dual supplies. The single TSM931 draws less than 4μA (max) supply current over temperature. The dual TSM932/933 and the quad TSM934 each draw less than 3μA per comparator over temperature ...

Page 2

... IN-)..............................................(V+ + 0.3V) to (V- - 0.3V) HYST…………………………………….(REF + 5V) to (V- - 0.3V) Output Voltage REF..................................................... (V+ + 0.3V) to (V- - 0.3V) OUT (TSM931/934)...........................(V+ + 0.3V) to (GND - 0.3V) OUT (TSM932/933)...............................(V+ + 0.3V) to (V- - 0.3V) Input Current (IN+, IN-, HYST)..............................................20mA Output Current REF…………………………………………………………….20mA OUT… ...

Page 3

... PACKAGE/ORDERING INFORMATION PART ORDER NUMBER CARRIER QUANTITY ORDER NUMBER MARKING TSM932CUA+ TABD TSM932CUA+T PART ORDER NUMBER CARRIER QUANTITY ORDER NUMBER MARKING TSM933CUA+ TABB TSM933CUA+T TSM931_34DS r1p0 TSM932CSA+ Tube 50 TSM932CSA+T TSM932ESA+ Tape 2500 & Reel TSM932ESA+T TSM933CSA+ Tube 50 TSM933CSA+T TSM933ESA+ Tape 2500 & ...

Page 4

... Lead-free Program: Touchstone Semiconductor supplies only lead-free packaging. Consult Touchstone Semiconductor for products specified with wider operating temperature ranges. Page 4 ORDER CARRIER QUANTITY NUMBER Tube 48 TSM934ESE+ Tape 2500 TSM934ESE+T & Reel PART CARRIER QUANTITY MARKING Tube 48 TS934E Tape 2500 & Reel TSM931_34DS r1p0 RTFDS ...

Page 5

... IN+ = IN- + 100mV COMPARATOR Input Offset Voltage V CM Input Leakage Current (IN-, IN+) IN+ = IN- = 2.5V Input Leakage Current (HYST) TSM931, TSM932, TSM933 Input Common-Mode Voltage Range V- to (V+ – 1.3V) Common-Mode Rejection Ratio Power-Supply Rejection Ratio V+ = 2.5V to 11V Voltage Noise 100Hz to 100kHz Hysteresis Input Voltage Range ...

Page 6

... IN+ = IN- + 100mV COMPARATOR Input Offset Voltage V CM Input Leakage Current (IN-, IN+) IN+ = IN- = 1.5V Input Leakage Current (HYST) TSM931, TSM932, TSM933 Input Common-Mode Voltage Range V- to (V+ – 1.3V) Common-Mode Rejection Ratio Power-Supply Rejection Ratio V+ = 2.5V to 11V Voltage Noise 100Hz to 100kHz Hysteresis Input Voltage Range ...

Page 7

... Reference Output Voltage vs Output Load Current 1.190 SINK 1.185 1.180 1.175 1.170 SOURCE 1.165 1.160 1.155 LOAD CURRENT - µA TSM931 Supply Current vs Temperature 4.5 IN+ = IN- + 100mV 5V - 1.5 -40 - TEMPERATURE - ºC TSM931_34DS r1p0 5 4 ...

Page 8

... IN+ = IN- + 100mV -40 - TEMPERATURE - ºC Hysteresis Control OUTPUT HIGH NO CHANGE OUTPUT LOW REF HYST Response Time vs Load Capacitance OHL V OLH 100 LOAD CAPACITANCE - nF TSM931_34DS r1p0 RTFDS ...

Page 9

... OVERDRIVE 10 ±100mV OVERDRIVE 1 1.5 2 SINGLE-SUPPLY VOLTAGE - V Short-Circuit Source Current vs Supply Voltage 200 160 120 OUT CONNECTED 2.5 3 3.5 4 4.5 TOTAL SUPPLY VOLTAGE - V TSM931_34DS r1p0 100 0 -2 100 10 1 2.5 1 5.5 5 TSM931-TSM934 Response Time For Various ...

Page 10

... Comparator C Inverting Input Comparator C Noninverting Input Comparator D Inverting Input Comparator D Noninverting Input Ground. Connect to V- for single-supply operation. Comparator D Output. Sinks and sources current. Swings from V+ to GND. Comparator C Output. Sinks and sources current. Swings from V+ to GND. FUNCTION TSM931_34DS r1p0 RTFDS ...

Page 11

... BLOCK DIAGRAMS TSM931_34DS r1p0 TSM931-TSM934 Page 11 RTFDS ...

Page 12

... Comparator Output comparators The TSM931 and the TSM934 have a GND pin that allows the output to swing from V+ to GND while the V- pin can be set to a voltage below GND as long as the voltage difference between V+ and V- is within 11V ...

Page 13

... Hysteresis (TSM934) Relative to adding hysteresis with the HYST pin as was done for the TSM931-TSM933, the circuit in Figure 3 uses positive feedback along with two external resistors to set the desired hysteresis. The circuit consumes more current and it slows down the ...

Page 14

... THR features that make it perfect for this application. While consuming only 3.5μA of quiescent current with a 10mA load, the TSM931 is able to generate a voltage of VBATT – 0.12V. As shown in the figure, three resistors are used to generate a hysteresis band of 100mV and sets the IN+ trip point to 50mV when IN+ is going low ...

Page 15

... Calculating R2. As the input voltage VIN 5. Calculating R3. low undervoltage TSM931-TSM934 (TSM931-TSM933)”, determine the desired hysteresis and select resistors R4 and R5 accordingly. This circuit has ±5mV of hysteresis at the input where the input voltage V will appear larger due to the IN input resistor divider. ...

Page 16

... V thresholds, the outputs will be HIGH. The design procedure used to design the window detector can be used to design this circuit. Figure 7. Level Shifter: ±5V Input into CMOS output =(R1 + R2)/R1 volts. All other IN is above the LOW and FAIL IN TSM931_34DS r1p0 RTFDS ...

Page 17

... Figure 8. Two-Stage Low-Voltage Detector TSM931_34DS r1p0 TSM931-TSM934 Page 17 RTFDS ...

Page 18

... This part is compliant with JEDEC specification MS-012 Lead span/stand off height/coplanarity are considered as 6. Special characteristic. Page 18 (N.B., Drawings are not to scale) 5.80 – 6.20 LEADFARME 1 THICKNESS 0.19 – 0.25 1.32 – 1.52 GAUGE PLANE 0.25 0.10 – 0.25 0.10 Max 2 3.73 - 3.89 0.48 Max 0.76 Max 7' REF 0.28 Min 0.66 Min ALL SIDE 45' Angle 3.81 – 3. 8° 0.406 – 0.863 TSM931_34DS r1p0 RTFDS ...

Page 19

... PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 2. PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTUSIONS. 3. CONTROLLING DIMENSION IN MILIMETERS. 4. THIS PART IS COMPLIANT WITH JEDEC MO-187 VARIATIONS AA 5. LEAD SPAN/STAND OFF HEIGHT/COPLANARITY ARE CONSIDERED AS SPECIAL CHARACTERISTIC. TSM931_34DS r1p0 TSM931-TSM934 (N.B., Drawings are not to scale) 0.38 Max 0.127 3 ...

Page 20

... Drawings are not to scale) 0.25 GAUGE PLANE 6.20 Max 3.99 Max 5.80Min 3.81 Min ( 1.75 Max 0.25 Max O.10 Min 0.10 Max 0.79 Max 0.69 Min 7' TYP ALL SIDE 0.863 Max DETAIL ‘A’ 0.406 Min 3.89 Max 3.73 Min 0.48 Max 0.28 Min 45' Angle 3.99 Max 3.81 Min 0.25 Max 0.19 Min DETAIL ‘A’ TSM931_34DS r1p0 RTFDS ...

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