产品概述 返回TOPAtp嘉泰姆
CXLC8961是一款用于有源矩阵有机发光二极管(AMOLED)面板供电的芯片。其内部集成了一个升压转换器和一个负压转换器，非常适合用于由电池供电的电子设备。高精度高效率的升压转换器内部集成了0.5Ω的NMOS功率管和0.6Ω的PMOS功率管，带载能力达250mA，1.4MHz的工作频率允许采用较小的电感。升压转换器采用同步整流技术并具有真关断功能，内部数字软启动控制浪涌电流。其输出可通过外部反馈电阻调节为4V~8V。高精度的负压转换器内部集成了0.4Ω的NMOS功率管和0.5Ω的PMOS功率管，带载能力达250mA，1.4MHz的工作频率允许采用较小的电感。输出范围-6V~-1V，外部可调。效率可达80%以上，内部数字软启动控制浪涌电流。CXLC8961采用12引脚的小型TDFN封装(3mm x 3mm x 0.6mm)。工作温度范围-40oC to +85oC。The CXLC8961 generates power supply rails for active-matrix
organic light emitting diode (AMOLED) displays. It includes
a step-up DC-DC and an inverting DC-DC converter making
it suitable for battery operated products.
The step-up converter is a high-accuracy power-efficiency
250mA output regulator. It features an internal 0.5Ω
N-MOSFET, 0.6Ω P-MOSFET and 1.4MHz operation
frequency allowing the use of small inductor and capacitors.
The integrated synchronous rectifier allows the true
shutdown of the outputs. An internal digital soft-start
function controls inrush currents. The step-up converter
output can be externally set 4V to 8V.
The inverting converter is a high-accuracy 250mA regulator.
It features an internal 0.4Ω N-MOSFET, 0.5Ω P-MOSFET
and 1.4MHz operation frequency allowing the use of small
inductor and capacitors. Its -6V to -1V output efficiency up
to 80% at 150mA. An internal digital soft-start function
controls inrush currents.
The CXLC8961 is available in a small (3mm× 3mm× 0.6mm)
12 pin thin TDFN package and operates over the -40oC to
+85oC temperature range.
产品特点 返回TOPAtp嘉泰姆
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• 输入电压范围2.5V~4.5VAtp嘉泰姆
• 1.4MHz电流模升压转换器Atp嘉泰姆
- 输出范围外部可调4V~8VAtp嘉泰姆
- 带载高达250mAAtp嘉泰姆
- 高精度(+/- 1%)Atp嘉泰姆
- 集成18V 0.5Ω NMOS功率管</p>
- 集成18V 0.6Ω PMOS同步管</p>
- 峰值电流限制</p>
- 效率高达85%Atp嘉泰姆
- 小占空比下较好的工作Atp嘉泰姆
• 1.4MHz电流模负压转换器Atp嘉泰姆
- 输出范围外部可调-6V~-1VAtp嘉泰姆
- 带载高达250mAAtp嘉泰姆
- 高精度(+/- 2%)Atp嘉泰姆
- 集成18V 0.5Ω PMOS功率管</p>
- 集成18V 0.4Ω NMOS同步管</p>
- 峰值电流限制</p>
- 效率高达80%Atp嘉泰姆
• 具有真关断功能</p>
• 具有输出欠压关断功能Atp嘉泰姆
• 过温保护Atp嘉泰姆
• 12脚 3mm x 3mm TDFN封装Atp嘉泰姆
• 符合RoHS规范及Lead(Pb)-Free Halogen-FreeAtp嘉泰姆
2.5V to 4.5V Input Supply RangeAtp嘉泰姆
1.4MHz Current Mode Step Up RegulatorAtp嘉泰姆
- External Programmable 4V~8V Output VoltageAtp嘉泰姆
- Maximum 250mA OutputAtp嘉泰姆
- High Accuracy (+/- 1%)Atp嘉泰姆
- Built-In 18V, 0.5 N-MOSFETAtp嘉泰姆
- Built-In 18V, 0.6 P-MOSFETAtp嘉泰姆
Synchronous RectifierAtp嘉泰姆
- Cycle-by-Cycle Current LimitAtp嘉泰姆
- More than 85% Efficiency at 150mAAtp嘉泰姆
- Good Low-Duty Factor OperationAtp嘉泰姆
1.4MHz Current Mode Inverting RegulatorAtp嘉泰姆
- -6V to -1VAtp嘉泰姆
- Maximum 250mA OutputAtp嘉泰姆
- High Accuracy (+/- 1%)Atp嘉泰姆
- Built-In 18V, 0.5 P-MOSFETAtp嘉泰姆
- Built-In 18V, 0.4 N-MOSFETAtp嘉泰姆
Synchronous RectifierAtp嘉泰姆
- Cycle-by-Cycle Current LimitAtp嘉泰姆
- Up to 80% Efficiency at 150mAAtp嘉泰姆
True Shutdown Mode for Dual OutputsAtp嘉泰姆
Timer-Delayed Output Under-Voltage Shutdown forAtp嘉泰姆
Dual OutputsAtp嘉泰姆
Over Temperature ProtectionAtp嘉泰姆
12 Pin 3mm′ 3mm thin TDFN PackageAtp嘉泰姆
RoHS Compliant and 100% Lead(Pb)-FreeAtp嘉泰姆
Halogen-FreeAtp嘉泰姆
应用范围 返回TOPAtp嘉泰姆
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• OLED显示屏</p>
• 手机，DSC显示屏</p>
• 汽车导航Atp嘉泰姆
OLED DisplaysAtp嘉泰姆
Phone, DSC DisplayAtp嘉泰姆
Automobile NavigationAtp嘉泰姆
技术规格书（产品PDF) 返回TOP Atp嘉泰姆
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