The LP5524 device is a highly integrated dual-zone LED driver that can drive up to four LEDs in parallel with a total output current of 100 mA. Regulated high-side internal current sources deliver excellent current and brightness matching in all LEDs.

The LP5524 provides overcurrent protection and pulse-width modulation (PWM) control of four indicator LEDs without the need for external components.

LED driver current sources are split into two independently controlled banks for driving secondary displays, keypad and indicator LEDs. Brightness control is achieved by applying PWM signals to each enable pin. Default LED current is factory-programmable and an optional external resistor can be used to set LED current to user programmable values.

The LP5524 is available in a tiny, 9-pin, thin DSBGA package.

For all available packages, see the orderable addendum at the end of the data sheet.

• Wide Input Voltage Range: 2.7 V to 5.5 V
• High-Side LED Driver
• Drives Four LEDs With up to 25 mA per LED
• 0.4% Typical Current Matching
• PWM Brightness Control
• Overcurrent Protection
• Fast Transient Response
• Optional External ISET Resistor
• Ultra-Small Solution Size:
  • No External Components
  • 9-Pin DSBGA Package with 0.4-mm pitch:
    • 1.24 mm × 1.24 mm × 0.6 mm (L × W × H, maximum)

• Number of channels (#)
• 4
• LED current per channel (mA)
• 25
• LED configuration
• Parallel
• Program memory
• No
• Programmable ramp control
• No
• Vin (Min) (V)
• 2.7
• Vin (Max) (V)
• 5.5
• Iout (Max) (A)
• 0.1
• Features
• GPIO interface
• Iq (Typ) (mA)
• 0.17
• Shutdown current (Typ) (uA)
• 0.2
• Operating temperature range (C)
• -40 to 85
• Rating
• Catalog

LP5524的完整型号有：LP5524TM-5/NOPB、LP5524TMX-5/NOPB，以下是这些产品的关键参数及官网采购报价：

LP5524TM-5/NOPB，工作温度：-40 to 85，封装：DSBGA (YFQ)-9，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网LP5524TM-5/NOPB的批量USD价格：.337（1000+）

LP5524TMX-5/NOPB，工作温度：-40 to 85，封装：DSBGA (YFQ)-9，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网LP5524TMX-5/NOPB的批量USD价格：.281（1000+）

LP5524TM-5EV — 用于 LP5524 的评估板

LP5524 Evaluation Kit enables designers an easy way to evaluate the performance of the device. The evaluation board has jumpers for each enable pin for easy on/off type control. These inputs can also be fed with external PWM source. Jumpers on LED outputs allow easy LED current measuring. ISET pin (...)

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