TP2021/TP2025
SC70, 1.8V, Nano-power Comparators with Voltage Reference
Features
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
Ultra-Low Supply Current:
390 nA Comparator with Reference
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.
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
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.
Applications
Battery Monitoring / Management
Alarm and Monitoring Circuits
Threshold Detectors/Discriminators
Sensing at Ground or Supply Line
Oscillators and RC Timers
3PEAK and the 3PEAK logo are registered trademarks of
3PEAK INCORPORATED. All other trademarks are the property
of their respective owners.
Mobile Communications and Notebooks
Ultra-Low-Power Systems
Related Products
VBattery
DEVICE
DESCRIPTION
Fast 68ns, 1.8V Low Power (46µA), Internal Hysteresis,
±3mV Maximum VOS, – 0.2V to VDD + 0.2V RRI, Push-
Pull (CMOS/TTL) Output Comparators
(1)
TP1941/TP1941N
/TP1942/TP1944
Load
RPU
TP2021
Fast 68ns, 1.8V Low Power (46µA), Internal Hysteresis,
±3mV Maximum VOS, – 0.2V to VDD + 0.2V RRI, Open-
Drain Output Comparators
TP1945/TP1945N
/TP1946/TP1948
Battery
Ref
R1
R2
TP1931
/TP1932/TP1934
950ns, 3µA, 1.8V, ±2.5mV VOS-MAX, – 0.2V to VDD + 0.2V
RRI, Internal Hysteresis, Push-Pull Output Comparators
Rsense
TP1935
/TP1936/TP1938
950ns, 3µA, 1.8V, ±2.5mV VOS-MAX, – 0.2V to VDD + 0.2V
RRI, Internal Hysteresis, Open-Drain Comparators
Ultra-low 200nA, 13µs, 1.6V, ±2mV Maximum VOS
Internal Hysteresis, – 0.2V to VDD + 0.2V RRI, Push-Pull
(CMOS/TTL) Output Comparators
,
TP2011
/TP2012/TP2014
NOTE: (1) Use RPU with the TP2025
Ultra-low 200nA, 13µs, 1.6V, ±2mV Maximum VOS
Internal Hysteresis, – 0.2V to VDD + 0.2V RRI, Open-
Drain Output Comparators
,
TP2015
/TP2016/TP2018
TP2021 in Low-Side Current Sensing
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1