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PDF TSM9117 Data sheet ( Hoja de datos )
| Número de pieza | TSM9117 | |
| Descripción | 1.6V Nanopower Comparators with/without Internal References | |
| Fabricantes | Silicon Laboratories | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TSM9117 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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TSM9117-TSM9120
1.6V Nanopower Comparators with/without Internal References
FEATURES
♦ Second-source for MAX9117-MAX9120
♦ Guaranteed to Operate Down to +1.6V
♦ Ultra-Low Supply Current
350nA - TSM9119/TSM9120
600nA - TSM9117/TSM9118
♦ Internal 1.252V ±1.75% Reference
♦ Input Voltage Range Extends 200mV Outside-the-Rails
♦ No Phase Reversal for Overdriven Inputs
♦ Push-pull and Open-Drain Output Versions Available
♦ Crowbar-Current-Free Switching
♦ Internal Hysteresis for Clean Switching
♦ 5-pin SC70 and 8-pin SOIC Packaging
APPLICATIONS
2-Cell Battery Monitoring/Management
Medical Instruments
Threshold Detectors/Discriminators
Sensing at Ground or Supply Line
Ultra-Low-Power Systems
Mobile Communications
Telemetry and Remote Systems
DESCRIPTION
The TSM9117–TSM9120 family of nanopower
comparators is electrically and form-factor identical to
the MAX9117-MAX9120 family of analog
comparators. Ideally suited for all 2-cell battery-
management/monitoring applications, these 5-pin
SC70 analog comparators guarantee +1.6V
operation, draw very little supply current, and have
robust input stages that can tolerate input voltages
beyond the power supply. The TSM9117 and the
TSM9118 draw 600nA of supply current and include
an on-board 1.252V ±1.75% reference. The
comparator-only TSM9119 and the TSM9120 draw a
supply current of 350nA.
The TSM9117 and TSM9119’s push-pull output
drivers were designed to drive 5mA loads from one
supply rail to the other supply rail. The TSM9118 and
the TSM9120’s open-drain output stages make it
easy to incorporate these comparators into systems
that operate on different supply voltages.
TYPICAL APPLICATION CIRCUIT
PART
TSM9117
TSM9118
TSM9119
TSM9120
INTERNAL
REFERENCE
Yes
Yes
No
No
OUTPUT
TYPE
Push-Pull
Open-Drain
Push-Pull
Open-Drain
SUPPLY
CURRENT (nA)
600
600
350
350
Page 1
© 2014 Silicon Laboratories, Inc. All rights reserved.
1 page  
TSM9117-TSM9120
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = +5V; VEE = 0V; CL = 15pF; VOVERDRIVE = 100mV; TA = +25°C, unless otherwise noted.
TSM9117/9118 Supply Current vs
Supply Voltage and Temperature
1.25
TSM9119/9120 Supply Current
vs Supply Voltage and Temperature
1
1.15
1.05
0.95
0.85
0.75
0.65
0.55
0.45
1.5
TA = +85°C
TA = +25°C
TA = -40°C
2.5 3.5 4.5
5.5
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
1.5
TA = +85°C
TA = +25°C
TA = -40°C
2.5 3.5 4.5
5.5
SUPPLY VOLTAGE - Volt
SUPPLY VOLTAGE - Volt
TSM9117/9118 Supply Current vs Temperature
1.1
1
0.9 VCC =+5V
0.8
VCC =+3V
0.7
0.6
VCC =+1.8V
0.5
0.4
-40
-15 10 35 60
TEMPERATURE - °C
85
TSM9117/9118 Supply Current
vs Output Transition Frequency
35
30
25
20 VCC =+5V
15
VCC =+3V
10
VCC =+1.8V
5
0
1
10 100 1k 10k
OUTPUT TRANSITION FREQUENCY - Hz
TSM9117/20 Rev. 1.0
TSM9119/9120 Supply Current vs Temperature
1
0.9
0.8
0.7 VCC =+5V
0.6
0.5 VCC =+3V
0.4
0.3 VCC =+1.8V
0.2
-40 -15 10 35 60 85
TEMPERATURE - °C
TSM9119/9120 Supply Current
vs Output Transition Frequency
35
30
25
20 VCC =+5V
15
VCC =+3V
10
VCC =+1.8V
5
0
1
10 100 1k 10k
OUTPUT TRANSITION FREQUENCY- Hz
Page 5
5 Page 
TSM9117-TSM9120
PIN FUNCTIONS
TSM9117/TSM9118
SC70
SO
16
24
33
42
57
——
— 1, 5, 8
TSM9119/TSM9120
SC70
SO
16
24
33
——
57
42
— 1, 5, 8
NAME
OUT
VEE
IN+
REF
VCC
IN-
NC
FUNCTION
Comparator Output
Negative Supply Voltage
Comparator Noninverting Input
1.252V Reference Output and
Comparator Inverting Input
Positive Supply Voltage
Comparator Inverting Input
No Connection. Not internally connected.
BLOCK DIAGRAMS
DESCRIPTION OF OPERATION
Guaranteed to operate from +1.6V supplies, the
TSM9117 and the TSM9118 comparators only draw
600nA supply current, feature a robust input stage
that can tolerate input voltages 200mV beyond the
power supply rails, and include an on-board +1.252V
±1.75% voltage reference. The comparator-only
TSM9119 and the TSM9120 have the same attributes
and only draw a supply current of 350nA. To insure
clean output switching behavior, all four analog
comparators feature 4mV internal hysteresis. The
TSM9117 and the TSM9119’s push-pull output
drivers were designed to minimize supply-current
surges while driving ±5mA loads with rail-to-rail
output swings. The open-drain output stage
TSM9118 and TSM9120 can be connected to supply
voltages above VCC to an absolute maximum of 6V
above VEE. Where wired-OR logic connections are
needed, their open-drain output stages make it easy
to use these analog comparators.
Input Stage Circuitry
The robust design of the analog comparators’ input
stage can accommodate any differential input voltage
from VEE - 0.2V to VCC + 0.2V. Input bias currents are
typically ±0.15nA so long as the applied input voltage
remains between the supply rails. ESD protection
diodes - connected internally to the supply rails -
protect comparator inputs against overvoltage
conditions. However, if the applied input voltage
exceeds either or both supply rails, an increase in
input current can occur when these ESD protection
diodes start to conduct.
TSM9117/20 Rev. 1.0
Page 11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet TSM9117.PDF ] | |
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