Overview
The LMS33460MG, produced by Texas Instruments, is an ultra-low power, 3-V undervoltage detector designed to accurately monitor power supplies. This device is particularly suited for battery-powered systems where low quiescent current and small size are crucial. It features a precision on-chip voltage reference and a comparator to measure the input voltage, along with built-in hysteresis to prevent erratic operation in noisy environments. The LMS33460MG is available in an ultra-miniature 5-pin SC70 package and operates over an extended temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-SC70 (DCK) | - |
| Pins | 5 | - |
| Operating Temperature Range | –40 to 85 | °C |
| Input Voltage Range | 0.8 to 7 | V |
| Detection Threshold | 3 V | V |
| Output Type | Open-Drain | - |
| Quiescent Current (Typical) | 1 µA | - |
| Maximum Operating Voltage | 7 V | V |
| Output Current Low (VOUT = 0.05 V, VIN = 1.1 V) | 0.01 mA | - |
| Output Delay Time (CL = 10 pF, RL = 470 kΩ) | 70 to 130 µsec | - |
| Detect Voltage Temperature Coefficient | ±120 PPM/°C | - |
Key Features
- Ultra-Low Power Consumption
- 3-V Detection Threshold
- Input Voltage Range from 0.8 V to 7 V
- Open-Drain Output
- Ultra-Small 5-Pin SC70 Package
- Extended Temperature Range (–40°C to 85°C)
- Ultra-Low Quiescent Current (1 µA Typical)
- Built-in Hysteresis to Prevent Erratic Operation
Applications
- Low Battery Voltage Detectors
- Power Fail Indicators
- Processor Reset Generators
- Battery Backup Controls
- Battery-Operated Equipment
- Hand-Held Instruments
- Undervoltage Detectors
Q & A
- What is the primary function of the LMS33460MG?
The LMS33460MG is an undervoltage detector that monitors the input voltage and generates an active output when the voltage drops below 3 V. - What is the typical quiescent current of the LMS33460MG?
The typical quiescent current is 1 µA. - What is the operating temperature range of the LMS33460MG?
The operating temperature range is –40°C to 85°C. - What type of package does the LMS33460MG come in?
The LMS33460MG comes in a 5-pin SC70 package. - What is the input voltage range for the LMS33460MG?
The input voltage range is from 0.8 V to 7 V. - Does the LMS33460MG have built-in hysteresis?
Yes, the LMS33460MG has built-in hysteresis to prevent erratic operation in noisy environments. - What are some common applications for the LMS33460MG?
Common applications include low battery voltage detectors, power fail indicators, processor reset generators, battery backup controls, and battery-operated equipment. - What is the maximum operating voltage for the LMS33460MG?
The maximum operating voltage is 7 V. - How does the output of the LMS33460MG behave when the input voltage drops below 3 V?
When the input voltage drops below 3 V, the output transitions to a logic low state. - Is any external capacitor required for the input of the LMS33460MG?
No, no input capacitor is required.
