Overview
The ADP1614ACPZ-650-R7 is a step-up, DC-to-DC switching converter produced by Analog Devices Inc. This device is designed to provide a high-efficiency boost conversion with a range of features that make it versatile for various applications. It integrates a power switch and operates in current-mode, pulse-width modulation (PWM), allowing for excellent transient response and efficient use of external components.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 to 5.5 | V |
| Output Voltage | Up to 15 V | V |
| Switching Frequency | 650 kHz or 1.3 MHz | Hz |
| Peak Current Limit | Up to 4 A (adjustable) | A |
| Maximum Duty Cycle | 88% to 92% | % |
| Efficiency | Up to 94% | % |
| Soft Start Capacitor | 47 nF | nF |
| Thermal Shutdown | Yes | |
| Undervoltage Lockout (UVLO) | Yes |
Key Features
- Adjustable peak current limit up to 4 A, set via an external resistor
- Fixed switching frequency options: 650 kHz or 1.3 MHz, with the option to select frequency via the FREQ pin for fixed current-limit versions
- Current-mode PWM architecture for excellent transient response and efficient noise filtering
- Soft start capability to prevent input inrush current, adjustable via a capacitor from SS to GND
- Undervoltage lockout (UVLO) and thermal shutdown (TSD) for protection
- Jumper-selected enable/shutdown control
Applications
The ADP1614ACPZ-650-R7 is suitable for a variety of applications requiring efficient step-up DC-to-DC conversion. These include:
- Portable electronics and battery-powered devices where high efficiency and compact design are crucial
- Industrial control systems and automation where reliable and efficient power conversion is necessary
- Aerospace and automotive systems where the device's robust features and protections are beneficial
- LED lighting and display systems where stable and efficient power supply is required
Q & A
- What is the input voltage range of the ADP1614ACPZ-650-R7? The input voltage range is from 2.5 V to 5.5 V.
- What are the available switching frequencies for this device? The device can operate at either 650 kHz or 1.3 MHz.
- How is the peak current limit adjusted? The peak current limit can be adjusted up to 4 A via an external resistor connected from Pin 9 (CLRES) to ground.
- What is the maximum duty cycle of the ADP1614ACPZ-650-R7? The maximum duty cycle is between 88% and 92%.
- Does the device have built-in protection features? Yes, it includes undervoltage lockout (UVLO) and thermal shutdown (TSD).
- How does the soft start feature work? The soft start is implemented by connecting a capacitor from the SS pin to GND, which prevents input inrush current when the device is enabled.
- What is the efficiency of the ADP1614ACPZ-650-R7? The device can achieve up to 94% efficiency.
- Can the output voltage be adjusted? Yes, the output voltage can be adjusted by changing the feedback resistors (R1 and R2) on the evaluation board.
- What type of PWM architecture does the device use? The device uses current-mode PWM architecture.
- Is the device suitable for high-temperature environments? Yes, it includes thermal shutdown protection to prevent overheating.
