Overview
The ICM7555CD/01,118 is a general-purpose CMOS timer produced by NXP USA Inc. This component is designed to provide significantly improved performance over the standard NE/SE555 timer, making it a direct replacement in most applications. It operates with low supply current, a wide operating supply voltage range, and offers high frequency performance. The ICM7555CD/01,118 is capable of producing accurate time delays or frequencies and can operate in both astable and monostable modes.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VDD supply voltage | Tmin ≤ Tamb ≤ Tmax | 3 | - | 16 | V |
| IDD supply current | VDD = Vmin | 50 | - | 200 | µA |
| IDD supply current | VDD = Vmax | 180 | - | 300 | µA |
| IO output current | - | - | - | 100 | mA |
| P power dissipation (SO8 package) | Tamb = 25 °C (still air) | - | - | 780 | mW |
| Tstg storage temperature | - | -65 | - | 150 | °C |
| Tsp solder point temperature | soldering 60 s | - | - | 300 | °C |
| ∆f/f frequency stability | - | - | - | 1.0 - 5.0 % | - |
| ∆f/∆V frequency variation with voltage | - | - | - | 0.1 - 3.0 %/V | - |
| ∆f/∆T frequency variation with temperature (VDD = 5 V) | - | - | - | -50 - ppm/°C | - |
Key Features
- Low supply current: Typically 50 µA to 300 µA depending on the supply voltage.
- Wide operating supply voltage range: 3 V to 16 V.
- High frequency performance: Up to 500 kHz.
- Operates in both astable and monostable modes.
- Adjustable duty cycle.
- High output source/sink driver capable of driving TTL/CMOS loads.
- Rail-to-rail outputs.
- Typical temperature stability of 0.005 % / °C at 25 °C.
- No crowbarring of the supply current during output transitions.
- No requirement to decouple CONTROL_VOLTAGE for stable operation.
Applications
- Automotive Control: Used for generating precise ignition timing in internal combustion engines, transmission control, and other timing functions.
- Industrial Automation: Synchronizes processes, controls machinery, and coordinates the timing of various operations.
- Digital Signal Processing (DSP): Used for scheduling and timing the execution of specific signal-processing tasks, maintaining signal integrity.
- Aerospace and Defense: Coordinates and synchronizes various aircraft, radar, and central control systems.
- Precision Timing: Generates precise time delays, pulse generation, sequential timing, and pulse width modulation.
Q & A
- What is the operating supply voltage range of the ICM7555CD/01,118?
The operating supply voltage range is from 3 V to 16 V.
- What are the typical supply current values for the ICM7555CD/01,118?
The typical supply current values are 50 µA to 300 µA depending on the supply voltage.
- What are the operating modes of the ICM7555CD/01,118?
The ICM7555CD/01,118 operates in both astable and monostable modes.
- What is the maximum output current of the ICM7555CD/01,118?
The maximum output current is 100 mA.
- What is the storage temperature range for the ICM7555CD/01,118?
The storage temperature range is from -65 °C to +150 °C.
- What is the solder point temperature for the ICM7555CD/01,118?
The solder point temperature is up to 300 °C for 60 seconds.
- How does the frequency stability of the ICM7555CD/01,118 vary?
The frequency stability varies from 1.0% to 5.0%.
- What is the frequency variation with voltage for the ICM7555CD/01,118?
The frequency variation with voltage is from 0.1% to 3.0% per volt.
- What is the temperature stability of the ICM7555CD/01,118?
The typical temperature stability is 0.005 % / °C at 25 °C.
- What are some common applications of the ICM7555CD/01,118?
Common applications include automotive control, industrial automation, digital signal processing, and aerospace and defense.
