HT7038

The HT7038 is a low-power voltage detector IC designed to monitor power supply levels in electronic circuits. It operates within a voltage range of 1.2V to 7V, making it suitable for battery-powered devices and embedded systems.
Key features include:
- Adjustable detection voltage (set via external resistors).
- Ultra-low current consumption (typically 1µA), ideal for energy-efficient applications.
- High accuracy (±2% detection voltage tolerance).
- Open-drain output for flexible interfacing.
Common applications include:
- Battery voltage monitoring.
- Power-on reset circuits.
- System fault detection.
The HT7038 is available in small packages like SOT-23, making it compact for space-constrained designs. Its simplicity and reliability make it a popular choice for power management tasks.
For exact specifications, refer to the datasheet from Holtek or your distributor.

The HT7038 is a voltage detector IC. Equivalent alternatives include:
- Torex XC61CN
- Richtek RT9818
- Seiko S-808 series
- ABLIC S-808
- Microchip TC54
These chips offer similar fixed-voltage detection (e.g., 3.8V) with low power consumption. Verify pin compatibility and threshold voltage before substitution.

The HT7038 is a low-power voltage detector IC with the following key features:
- Wide Operating Voltage Range: 1.5V to 12V.
- Low Power Consumption: Typically 1µA, making it ideal for battery-powered devices.
- High Accuracy: Detection voltage accuracy of ±2%.
- Adjustable Detection Voltage: Configurable via external resistors.
- Output Options: Open-drain or CMOS output (varies by model).
- Temperature Stability: Operates reliably across -40°C to +85°C.
- Small Package: Available in SOT-23 and TO-92 for compact designs.
Commonly used in power monitoring, battery protection, and reset circuits.

The HT7038 is a 3-pin voltage detector IC, commonly used for system reset and power monitoring.
Pin Functions:
1. VDD (Pin 1): Power supply input (typically 1.1V–12V).
2. GND (Pin 2): Ground connection.
3. RESET (Pin 3): Open-drain output; goes low when VDD drops below the detection threshold.
Key Features:
- Fixed detection voltage (e.g., 3.08V, 4.38V, etc., depending on the variant).
- Low power consumption.
- Used for microcontroller reset circuits and battery monitoring.

The HT7038 is manufactured by Holtek Semiconductor Inc., a Taiwan-based company specializing in integrated circuits (ICs).
Holtek is known for producing microcontrollers (MCUs), audio/video ICs, and power management chips. Founded in 1983, it serves consumer electronics, automotive, and industrial applications. The HT7038 is likely a voltage detector or power management IC, typical of Holtek's product range.
The company emphasizes cost-effective, reliable solutions for embedded systems.

The HT7038 is a voltage detector IC commonly used in:
1. Power Management – Monitors battery voltage to prevent over-discharge in portable devices.
2. Microcontroller Reset – Ensures stable operation by resetting MCUs during power fluctuations.
3. Consumer Electronics – Used in gadgets like cameras, toys, and smart home devices for voltage supervision.
4. Automotive Systems – Protects ECUs and sensors from undervoltage conditions.
5. Industrial Equipment – Safeguards control systems and IoT devices from power failures.
Its low power consumption and precision make it ideal for battery-powered and critical applications.

The HT7038 is typically available in a TO-92 package, a common through-hole transistor-style casing with three pins. It is compact, cost-effective, and widely used for voltage regulation applications. Some variants may also come in SOT-89 (surface-mount) packages for higher power handling. Confirm specifics with the datasheet or supplier for exact packaging details.