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TC7660SMJA
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TC7660SMJA

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Converter
  • Characteristics: Low-power, voltage doubling/inverting, high efficiency
  • Package: Surface Mount (SMD)
  • Essence: Charge Pump Voltage Converter
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 1.5V to 10V
  • Output Voltage Range: -1.5V to -10V
  • Output Current: Up to 20mA
  • Operating Temperature Range: -40°C to +85°C
  • Supply Voltage: 2V to 12V
  • Quiescent Current: 100µA (typical)

Detailed Pin Configuration

The TC7660SMJA has a total of 8 pins:

  1. V+ (Positive Supply Voltage)
  2. GND (Ground)
  3. OSC (Oscillator Frequency Control)
  4. C1- (Negative Terminal of Flying Capacitor 1)
  5. C1+ (Positive Terminal of Flying Capacitor 1)
  6. C2- (Negative Terminal of Flying Capacitor 2)
  7. C2+ (Positive Terminal of Flying Capacitor 2)
  8. VOUT (Output Voltage)

Functional Features

  • Voltage doubling or inverting operation
  • Low-power consumption
  • High efficiency conversion
  • Wide input voltage range
  • Stable output voltage
  • Short-circuit protection

Advantages and Disadvantages

Advantages: - Compact surface mount package - Low quiescent current - Wide operating temperature range - Efficient voltage conversion

Disadvantages: - Limited output current capacity - Requires external capacitors for operation

Working Principles

The TC7660SMJA is a charge pump voltage converter that uses switched capacitor techniques to double or invert the input voltage. It employs an internal oscillator to control the charge and discharge of two flying capacitors, which are connected in a voltage doubling or inverting configuration. The converted output voltage is then regulated and made available at the VOUT pin.

Detailed Application Field Plans

The TC7660SMJA finds applications in various fields, including but not limited to:

  1. Portable electronic devices
  2. Battery-powered systems
  3. LCD displays
  4. Audio amplifiers
  5. Sensor circuits
  6. Industrial automation

Detailed and Complete Alternative Models

  1. MAX1044: Similar voltage converter IC with higher output current capability.
  2. ICL7660: Equivalent charge pump voltage converter with similar specifications.
  3. LT1054: Voltage converter IC with additional features like shutdown mode and adjustable frequency.

These alternative models can be considered based on specific requirements and design constraints.

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تکنیکی حل میں TC7660SMJA کے اطلاق سے متعلق 10 عام سوالات اور جوابات کی فہرست بنائیں

Sure! Here are 10 common questions and answers related to the application of TC7660SMJA in technical solutions:

  1. Q: What is TC7660SMJA? A: TC7660SMJA is a voltage converter IC that can generate a negative voltage from a positive input voltage.

  2. Q: What is the input voltage range for TC7660SMJA? A: The input voltage range for TC7660SMJA is typically between 1.5V and 12V.

  3. Q: What is the output voltage range of TC7660SMJA? A: The output voltage range of TC7660SMJA is typically -1.5V to -12V.

  4. Q: Can TC7660SMJA be used to generate positive voltages? A: No, TC7660SMJA is specifically designed to generate negative voltages only.

  5. Q: What is the maximum output current of TC7660SMJA? A: The maximum output current of TC7660SMJA is typically around 20mA.

  6. Q: Is TC7660SMJA suitable for battery-powered applications? A: Yes, TC7660SMJA is suitable for battery-powered applications as it has low power consumption.

  7. Q: Can TC7660SMJA be used in audio applications? A: Yes, TC7660SMJA can be used in audio applications where a negative voltage is required, such as biasing audio amplifiers.

  8. Q: Does TC7660SMJA require external components for operation? A: Yes, TC7660SMJA requires a few external capacitors for proper operation.

  9. Q: What is the typical efficiency of TC7660SMJA? A: The typical efficiency of TC7660SMJA is around 90%.

  10. Q: Can TC7660SMJA tolerate short-circuits or overloads? A: No, TC7660SMJA does not have built-in protection against short-circuits or overloads, so external protection circuitry may be required.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.