Description
Here's a concise introduction to the DS1816R-10:
The DS1816R-10 is a voltage detector module from Dallas Semiconductor, designed for power management and system reset applications. This compact device features a fixed +2.88V detection level and an open-drain output with internal 5kΩ pull-up resistor. It automatically restarts a microprocessor after power failure and maintains reset for 150ms if the supply voltage remains out of tolerance.
The DS1816R-10 is suitable for various applications, including telecommunications equipment, industrial controllers, medical instruments, and automotive electronics. Its temperature range is -40°C to +85°C, making it suitable for most industrial and consumer applications. With its small SOT-23 package and low cost, the DS1816R-10 provides an efficient solution for monitoring power status and triggering reset actions in a wide range of electronic systems.
Features
According to the product information, the features of DS1816R-10 include:
- Automatically restarts a microprocessor after power failure
- Maintains reset for 150ms after VCC returns to an in-tolerance condition
- Precision temperature-compensated voltage reference and voltage sensor
- Accurate power monitoring with 10% tolerance for use with 3V systems
- Low-cost TO-92 or space-saving SOT-23 packages available
- Efficient open-drain output with internal 5kΩ pull-up resistor
- Operating temperature range of -40°C to +85°C
Package
The package type of DS1816R-10 is SOT-23-3 (also known as TO-236).
Pinout
According to the product information, the DS1816R-10 has a 3-pin package (SOT-236) and its features include:
- Pin 1: VCC (power input)
- Pin 2: OUT (output)
- Pin 3: GND (ground)
The output pin (OUT) is an open-drain type with an internal 5kΩ pull-up resistor.
Manufacturer
The manufacturer of the DS1816R-10 is Dallas Semiconductor.
Applications
The DS1816R-10 can be used in various applications such as power management, temperature monitoring, system reset in telecommunications equipment, industrial controllers, medical instruments, and automotive electronics. It is a voltage detector with a fixed threshold of +2.88V, making it suitable for detecting power-on or power-off conditions in systems that require precise voltage monitoring.
Specifications
| Category |
Integrated Circuits (ICs)Power Management (PMIC)Supervisors |
Programmable |
Not Verified |
| Type |
Simple Reset/Power-On Reset |
Number of Voltages Monitored |
1 |
| Voltage - Threshold |
2.88V |
Output |
Open Drain or Open Collector |
| Reset |
Active Low |
Reset Timeout |
100ms Minimum |
| Operating Temperature |
-40°C ~ 85°C (TA) |
Mounting Type |
Surface Mount |
| Base Product Number |
DS1816 |
Product Category |
Supervisory Circuits |
| Mounting Style |
SMD/SMT |
Threshold Voltage |
4.35 V |
| Number of Inputs Monitored |
1 Input |
Output Type |
Active Low, Open Drain |
| Manual Reset |
No Manual Reset |
Watchdog Timers |
No Watchdog |
| Battery Backup Switching |
No Backup |
Reset Delay Time |
150 ms |
| Supply Voltage - Max |
5.5 V |
Minimum Operating Temperature |
- 40 C |
| Maximum Operating Temperature |
+ 85 C |
Chip Enable Signals |
No Chip Enable |
| Height |
0.94 mm |
Length |
2.92 mm |
| Operating Supply Current |
35 uA |
Overvoltage Threshold |
2.97 V |
| Power Fail Detection |
Yes |
Product Type |
Supervisory Circuits |
| Subcategory |
PMIC - Power Management ICs |
Supply Voltage - Min |
0 V |
| Undervoltage Threshold |
2.8 V |
Width |
1.3 mm |
| Part # Aliases |
DS1816R |
Unit Weight |
0.050717 oz |
| Package/Case |
SOT23-3
|
DS1816R-10 FAQs
1.Q: What is the reset delay time of the DS1816R-10?
A: The DS1816R-10 provides a fixed 150ms reset delay after VCC stabilizes above the threshold.
2.Q: Are there related parts to the DS1816R-10 for similar applications?
A: Consider Maxim’s DS1813 or DS1818 for alternative supervisory ICs with adjustable thresholds or additional features.
3.Q: Does the DS1816R-10 support manual reset or watchdog functionality?
A: No, it lacks manual reset and watchdog timer features but focuses on voltage supervision.
4.Q: What is the typical operating current of the DS1816R-10?
A: The DS1816R-10 consumes 35µA (typical) during normal operation.
5.Q: How does the DS1816R-10 handle power failure detection?
A: It monitors VCC against a 4.35V threshold; if voltage drops below, it asserts RESET (active-low) after a 150ms delay.
6.Q: What are the recommended operating conditions for the DS1816R-10?
A: It operates at 0V to 5.5V supply voltage and within a temperature range of -40°C to +85°C.
7.Q: What package does the DS1816R-10 use?
A: The DS1816R-10 is housed in a compact SOT-23-3 package with dimensions 2.92mm (L) × 1.3mm (W) × 0.94mm (H).
8.Q: What applications is the DS1816R-10 designed for?
A: It is ideal for industrial systems, embedded controllers, power supply sequencing, and equipment requiring voltage monitoring/supervision.
9.Q: What are the key features of the DS1816R-10?
A: Key features include 4.35V undervoltage monitoring, active-low open-drain reset output, 150ms reset delay, and a low operating current of 35µA.
10.Q: What is the pinout configuration of the DS1816R-10?
A: The DS1816R-10 in SOT-23-3 has Pin 1 (GND), Pin 2 (VCC), and Pin 3 (RESET Output, active-low open drain).
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