ETA9742 SOP-8 Power Bank Power Management IC
- Product Code:
- 2018-2-810
- Availability:
- 10
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9.50 ₺
Ex Tax: 8.33 ₺
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ETA9742 SOP-8 Power Bank Power Management IC
The ETA9742E8A (ETA9742) is a high-efficiency power management IC designed for 3.7 V/4.2 V Li-Ion/Li-Po batteries, featuring synchronous charging and a 5 V boost converter.
It is suitable for power bank designs, portable charging units, and battery-powered portable electronic projects.
Technical Specifications
| Specification | Value |
|---|---|
| IC Code | ETA9742E8A / ETA9742 |
| Package Type | SOP-8 (SOP8-EP - Exposed Pad) |
| Input Voltage (IN) | 4.75 V – 5.5 V |
| Maximum Charging Current | 2.1 A (Adjustable) |
| Output Voltage (BOOST) | 5 V fixed |
| Maximum Output Current | 2.4 A |
| Power Conversion Efficiency | 92% - 95% |
| Switching Frequency | ~1 MHz |
| Compatibility | 1S (3.7 V nominal / 4.2 V full) Li-Ion / Li-Po batteries |
| Architecture | Synchronous charging and boost architecture (high efficiency, low heat generation) |
| LED Indicator Support | Built-in battery level indicator support with 4 LEDs (25%, 50%, 75%, 100%) |
| Protections | Built-in overcharge, over-discharge, short-circuit, and overcurrent protection |
| NTC Thermistor | Battery temperature monitoring via NTC thermistor connection |
