产品概述
描述
The LED1202 is a 12-channel low quiescent current LED driver; it guarantees 5 V output driving capability and each channel is able to provide up to 20 mA with a headroom voltage of 350 mV (typ.) only. The output current can be adjusted separately for each channel by 8-bit analog and 12-bit digital dimming control.
A slow turn-on and turn-off time improves the system low noise generation performance; moreover, the phase shifting function helps to reduce the inrush current. Eight patterns can be stored in the internal registers for automatic sequencing without MCU intervention.
The pattern sequence can be also configured for duration time and number of repetition. For multi-device applications, a common clock domain can be shared for timing synchronization. The device includes thermal shutdown and open LED detection.
The device I²C interface is based on fast mode specification and works up to 400 kHz. Eight I²C addresses are possible by using two configuration pins (A0/A1) only.
The LED1202 is available in WLCSP20 package 1.71 x 2.16 x 0.5 mm with 0.4 mm pitch and in QFN20 3x3 package 3 x 3 x 0.6 mm with 0.5 mm pitch.
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所有功能
- Supply range from 2.6 V to 5 V
- 12 channels for single LED
- 20 mA current capability per channel
- 1% (typ.) current matching at 16 mA and 2% (typ.) at 2.5 mA
- 1.8 V compatible I²C control interface
- 8-bit analog dimming individual control
- 12-bit local PWM resolution
- 8 programmable patterns
- Programmable pattern sequence
- Synchronization for multi-device application
- Phase shifting between channels
- Open LED detection
- Overtemperature protection
- 8 configurable I²C slave addresses plus global address
- Fault flag pin
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EDA符号、封装和3D模型
STMicroelectronics - LED1202
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符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| LED1202JR | 批量生产 | WLCSP MSL1 | 工业 | N/A | |
| LED1202QTR | 批量生产 | WFQFPN 3X3X0.60 20L PITCH 0.5 | 工业 | Ecopack2 |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 封装 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | 温度（ºC） | Operating Temperature (°C) (min) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| LED1202JR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | WLCSP MSL1 | Tape and Reel | TAIWAN | EAR99 | NEC | - | - | - | |||
| LED1202QTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | WFQFPN 3X3X0.60 20L PITCH 0.5 | Tape and Reel | MALAYSIA | EAR99 | NEC | - | - | - | |||
LED1202JR 批量生产
LED1202QTR 批量生产