NEX10058 is designed for powering AMOLED (Active-Matrix Organic LED) displays which require ELVDD, ELVSS and AVDD.
It integrates a boost converter for ELVDD, an inverting buck-boost converter for ELVSS and a boost converter for AVDD. Output voltages of all the three converters can be programmed in digital steps through the digital interface control pins (ASWIRE and ESWIRE).
The device features high efficiency and excellent line and load regulation and transient performance which are well suited for AMOLED applications and is critical to battery-powered applications supply. It features an enhanced output current capability of up to 1 A with precise output voltage accuracy, resulting in higher brightness and superior display performance for AMOLED screens.
NEX10058 is available in a green WLCSP25 package.
Figure 1.Typical application circuit
Features and benefits
Input voltage range: 2.5 V to 5.0 V
Synchronous boost converter (ELVDD)
4.6 V to 5.0 V output voltage with 100 mV steps
4.6 V default output voltage
±0.5% output accuracy
VIN (VAVIN;PVIN) and VOUT bi-directional isolation
Synchronous inverting buck-boost converter (ELVSS)
-6.6 V to -0.5 V output voltage with 100 mV steps
-4.0 V default output voltage
±0.5% output accuracy
VIN (VAVIN;PVIN) and VOUT bi-directional isolation
ELVDD-ELVSS combined output current capability:
1 A at VIN (VAVIN;PVIN) = 3.2 V; VELVSS = -5.5 V
1 A at VIN (VAVIN;PVIN) = 2.9 V; VELVSS = -4.0 V
0.8 A at VIN (VAVIN;PVIN) = 2.5 V; VELVSS = -4.0 V
Synchronous boost converter (AVDD)
7.1 V to 7.8 V output voltage (SET = low) with 100 mV steps
6.9 V to 7.9 V output voltage (SET = high) with 50 mV steps
7.6 V default output voltage
±1% output accuracy
150 mA output current capability
VIN (VAVIN;PVIN) and VOUT bi-directional isolation
High switching frequency: 1.45 MHz
Dual SWIRE interfaces
ELVDD/ELVSS and AVDD output voltage programming
Output discharge on/off control
ELVSS transition time programming
Excellent line and load transient performance
UVLO and OTSD protection
Soft start with inrush current limitation
Short-circuit protection
High efficiency at full load range
25-ball 1.965 mm x 1.965 mm WLCSP package
Applications
Mobile phones
Tablets
Active-Matrix OLED power supply management
NEX10058 is designed for powering AMOLED (Active-Matrix Organic LED) displays which require ELVDD, ELVSS and AVDD.
It integrates a boost converter for ELVDD, an inverting buck-boost converter for ELVSS and a boost converter for AVDD. Output voltages of all the three converters can be programmed in digital steps through the digital interface control pins (ASWIRE and ESWIRE).
The device features high efficiency and excellent line and load regulation and transient performance which are well suited for AMOLED applications and is critical to battery-powered applications supply. It features an enhanced output current capability of up to 1 A with precise output voltage accuracy, resulting in higher brightness and superior display performance for AMOLED screens.
NEX10058 is available in a green WLCSP25 package.
Figure 1.Typical application circuit
Features and benefits
- Input voltage range: 2.5 V to 5.0 V
- Synchronous boost converter (ELVDD)
- 4.6 V to 5.0 V output voltage with 100 mV steps
- 4.6 V default output voltage
- ±0.5% output accuracy
- VIN (VAVIN;PVIN) and VOUT bi-directional isolation
- Synchronous inverting buck-boost converter (ELVSS)
- -6.6 V to -0.5 V output voltage with 100 mV steps
- -4.0 V default output voltage
- ±0.5% output accuracy
- VIN (VAVIN;PVIN) and VOUT bi-directional isolation
- ELVDD-ELVSS combined output current capability:
- 1 A at VIN (VAVIN;PVIN) = 3.2 V; VELVSS = -5.5 V
- 1 A at VIN (VAVIN;PVIN) = 2.9 V; VELVSS = -4.0 V
- 0.8 A at VIN (VAVIN;PVIN) = 2.5 V; VELVSS = -4.0 V
- Synchronous boost converter (AVDD)
- 7.1 V to 7.8 V output voltage (SET = low) with 100 mV steps
- 6.9 V to 7.9 V output voltage (SET = high) with 50 mV steps
- 7.6 V default output voltage
- ±1% output accuracy
- 150 mA output current capability
- VIN (VAVIN;PVIN) and VOUT bi-directional isolation
- High switching frequency: 1.45 MHz
- Dual SWIRE interfaces
- ELVDD/ELVSS and AVDD output voltage programming
- Output discharge on/off control
- ELVSS transition time programming
- Excellent line and load transient performance
- UVLO and OTSD protection
- Soft start with inrush current limitation
- Short-circuit protection
- High efficiency at full load range
- 25-ball 1.965 mm x 1.965 mm WLCSP package
Applications
- Mobile phones
- Tablets
- Active-Matrix OLED power supply management
