TSM917
1.8V Nanopower Comparator with Internal 1.245V Reference
FEATURES
♦
Second-source for MAX917
♦
Guaranteed to Operate Down to +1.8V
♦
Ultra-Low Supply Current: 750nA
♦
Internal 1.245V ±1.5% Reference
♦
Input Voltage Range Extends 200mV Outside-the-Rails
♦
No Phase Reversal for Overdriven Inputs
♦
Push-pull Output
♦
Crowbar-Current-Free Switching
♦
Internal Hysteresis for Clean Switching
♦
5-pin SOT23 and 8-pin SOIC Packaging
DESCRIPTION
The TSM917 nanopower analog comparator is
electrically and form-factor identical to the MAX917
analog comparator. Ideally suited for all 2-cell battery-
management/monitoring applications, this 5-pin
SOT23 analog comparator guarantees +1.8V
operation, draws very little supply current, and has a
robust input stage that can tolerate input voltages
beyond its power supply. The TSM917 draws 750nA
of supply current and includes an on-board 1.245V
±1.5% reference.
The TSM917’s push-push output drivers were
designed to drive 8mA loads from one supply rail to
the other supply rail. The TSM917 is also available in
an 8-pin SOIC package.
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
TYPICAL APPLICATION CIRCUIT
The Touchstone Semiconductor logo is a registered
trademark of Touchstone Semiconductor, Incorporated.
Page 1
© 2011 Touchstone Semiconductor, Inc. All rights reserved.