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TPS60252的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:LED 驱动器 - 背光 LED 驱动器
  • 功能描述:可驱动 7 个 WLED 的高效电荷泵,具有 I2C 接口和 0x76 I2C 从地址
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TPS60252的产品详情:

The TPS60250/2 are high efficiency, constant frequency charge pump DC/DC converters that use dual mode 1× and 1.5× conversions to maximize efficiency over the input voltage range. The devices drive up to five white LEDs for the main display and up to two white LEDs for the sub display with regulated constant current for uniform intensity. By utilizing adaptive 1×/1.5× charge pump modes and very low-dropout current regulators, the TPS60250/2 achieve high efficiency over the full 1-cell lithium-battery input voltage range.

Four enable inputs, ENmain, ENsub1, ENsub2, and ENaux, available through the I2C, are used for simple on/off controls for the independent main, sub1, sub2, and DM5 displays, respectively. To lower the operating current when using one sub display LED, the devices provide completely separate operation for the sub display LEDs.

The TPS60250/2 are available in a 16-pin 3mm x 3mm thin QFN.

TPS60252的优势和特性:
  • 3.0 V to 6.0 V Input Voltage Range
  • ×1 and ×1.5 Charge Pump
  • Fully Programmable Current with I2C
    • 64 Dimming Steps with 25mA Maximum (Sub and Main Display Banks)
    • 4 Dimming Steps with 80mA Maximum (DM5 for Auxiliary Application)
  • 2% Current Matching for Sub LEDs at Light Load Condition (Each 100μA)
  • 750 kHz Charge Pump Frequency
  • Continuous 230mA Maximum Output Current
  • Auto Switching Between ×1 and ×1.5 Mode for Maximum Efficiency
  • Built-in Soft Start and Current Limit
  • Open Lamp Detection
  • 16-Pin 3mm x 3mm QFN
  • TPS60250 (I2C Slave Address: 1110111)
  • TPS60252 (I2C Slave Address: 1110110)
  • APPLICATIONS
    • Cellular Phones
    • PDA, PMP, GPS (Up To 4 Inch LCD Display)
    • Multidisplay Handheld Devices
TPS60252的参数(英文):
  • Number of channels (#)
  • 7
  • Vin (Min) (V)
  • 3
  • Vin (Max) (V)
  • 6
  • Vout (Min) (V)
  • 2.7
  • Vout (Max) (V)
  • 6.5
  • Type
  • Capacitive
  • Switching frequency (Max) (kHz)
  • 875
  • LED current per channel (mA)
  • 25
  • Peak efficiency (%)
  • 93
  • Topology
  • Boost
  • Features
  • Analog Dimming, Enable/Shutdown, Fault Detection, I2C Control, Integrated Switch, Load Disconnect During Shutdown, OVP, Soft Start, Synchronous Rectification
  • Operating temperature range (C)
  • -40 to 85
TPS60252具体的完整产品型号参数及价格(美元):

TPS60252的完整型号有:TPS60252RTER、TPS60252RTET,以下是这些产品的关键参数及官网采购报价:

TPS60252RTER,工作温度:-40 to 85,封装:WQFN (RTE)-16,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网TPS60252RTER的批量USD价格:.739(1000+)

TPS60252RTET,工作温度:-40 to 85,封装:WQFN (RTE)-16,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网TPS60252RTET的批量USD价格:.887(1000+)

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TPS60252的评估套件:

TPS6025xEVM Software (Rev. A)

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