ZXSC400：Low Voltage DC-DC LED Drivers
| Part Number | Data Sheet | SPICE Model | Topologies (Buck) | Topologies (Buck-Boost) | Topologies (Boost) | MinimumInput Voltage (V) | MaximumInput Voltage (V) | Maximum Output Voltage (V) | LED Current (A) | Switching Frequency (kHz) | Efficiency (%) | OperatingTemperatureRange (°C) | QuiescentCurrentTyp (mA) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ZXSC400 | ZXSC400.pdf | - | - | - | Yes | 1.8 | 8 | Ext BJT | Ext BJT | 200 | 94 | -40 to +85 | 0.22 |
Description
The ZXSC400 is a voltage mode boost converter in the SOT26 package. Its low feedback voltage allows the current in a chain of °Cs to be set and accurately monitored with a single resistor giving minimal losses. Its excellent load and line regulation means that for the full supply range from lithium-ion cells, the °C current will typically change by less than 1%. Using high efficiency Zetex switching transistors with ratings of 20V and higher allow many °Cs to be chained in series for the best °C current matching possible.
Application
- White LED backlighting for colour LCD panels
- General LED backlighting
- High performance white LED flashlights
- General LED driving from batteries
Features
- 1.8V to 8V supply range
- Typical output regulation of ±1%
- Over 80% typical efficiency
- 4.5μA typical shutdown current
- Series connection for ultimate °C current matching
Ordering Information
- ZXSC400E6TA
SOT26
- ZXSC400.pdf ZXSC400
- ZXTP2006E6 ZXTP2006E6
- ZXTP2006E6 ZXTP2006E6
