TP2021U2 datasheet(1/20 Pages) 3PEAK

Part #	TP2021U2

Description	SC70, 1.8V, Nano-power Comparators with Voltage Reference

PDF	20 Pages

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Manufacturer	3PEAK [3PEAK INC.]

Direct Link	http://www.3peakic.com/

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TP2021/TP2025

SC70, 1.8V, Nano-power Comparators with Voltage Reference

www.3peakic.com.cn

Features



Ultra-Low Supply Current:

390 nA Comparator with Reference



Internal 1.248V ± 1.8% Reference @ VDD =5V



Fast Response Time: 13 μs Propagation Delay,

with 100 mV Overdrive



Internal Hysteresis for Clean Switching



Offset Voltage: ± 2.0 mV Maximum



Offset Voltage Temperature Drift: 0.3 μV/°C



Input Bias Current: 6 pA Typical



Input Common-Mode Range Extends 200 mV



Push-Pull Output with ±25 mA Drive Capability



Open-Drain Output Version Available: TP2025



No Phase Reversal for Overdriven Inputs



Low Supply Voltage: 1.8V to 5.5V



Green, Space-Saving SC70/SOT23 Package

Applications



Battery Monitoring / Management



Alarm and Monitoring Circuits



Threshold Detectors/Discriminators



Sensing at Ground or Supply Line



Oscillators and RC Timers



Mobile Communications and Notebooks



Ultra-Low-Power Systems

Description

The TP2021 has a push-pull output stage with loads

up to 25mA. The TP2025 has an open-drain output

stage that makes it suitable for mixed-voltage

system design. Both feature an on-chip 1.248V

±1.8% reference and draw an ultra-low supply

current of only 440nA (max). The TP202x

incorporate 3PEAK’s proprietary and patented

design techniques to achieve the best world-class

performance among all nano-power comparators.

Both have 13μs fast response time under 1.8V to

5.5V supply. The internal input hysteresis eliminates

output switching due to internal input noise voltage,

reducing

current

draw.

They

have

input

common-mode range 200mV beyond the supply

rails, and operate down to +1.8V. The integrated

1.248V voltage reference offers low 120ppm/°C drift,

is stable with up to 10nF capacitive load, and can

provide up to 25mA of output current. These

features make the TP202x ideal for all 2-Cell Battery

Monitoring/Management.

The TP202x is available in the tiny SC70/SOT23

package for space-conservative designs. Both

versions are specified for the temperature range of

–40°C to +85°C.

3PEAK and the 3PEAK logo are registered trademarks of

3PEAK INCORPORATED. All other trademarks are the property

of their respective owners.

Battery

TP2021

NOTE: (1) Use RPU with the TP2025

Ref

Rsense

Load

R1

R2

RPU

(1)

VBattery

TP2021 in Low-Side Current Sensing

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TP2021U2 Datasheet(PDF) 1 Page - 3PEAK INC.

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