三输出 AMOLED 显示屏电源
| Display type | AMOLED |
| IC integration | AMOLED bias |
| Vin (Min) (V) | 2.9 |
| Vin (Max) (V) | 4.5 |
| Source driver voltage (Min) (V) | 7.7 |
| Source driver voltage (Max) (V) | 7.7 |
| Level shifter/scan driver (ch) | 0 |
| V_POS (Min) (V) | 4.6 |
| V_POS (Max) (V) | 4.6 |
| V_NEG (Min) (V) | -4 |
| V_NEG (Max) (V) | -4 |
| Features | Digital control interface |
| Topology | Boost, Buck-Boost |
| Rating | Catalog |
- 2.9V to 4.5V Input Voltage Range
- Fixed 4.6V VPOS Output Voltage
- 0.5% Accuracy VPOS at 25°C to Approximately 85oC
- External Output Sense Pin for VPOS
- Excellent Line Transient Regulation
- Digitally Programmable VNEG, –1.4V to –5.4V
- - 4V Default Value for VNEG
- TPS65632 Selectable AVDD, 5.8V and 7.7V TPS65632A Fixed AVDD 7.7V
- 300mA Output Current for VPOS and VNEG
- Short Circuit Protection
- Thermal Shutdown
- 3 x 3mm 16 pin QFN package
The TPS65632A is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring three supply rails, VPOS, VNEG and AVDD. The device integrates a boost converter for VPOS, an inverting buck boost converter for VNEG and a boost converter for AVDD which are suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65632A uses a novel technology enabling excellent line and load regulation.
