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R1214 系列

用于白光LED的PWM/VFM升压DC/DC转换器

  • Consumer
  • PLP
  • RoHS

The R1214 Series are PWM/VFM step-up DC/DC converters for white LEDs. The R1214 includes 2-channel current drivers for white LEDs, an under voltage lockout circuit (UVLO), an overvoltage protection circuit (LxOVP, LEDOVP) and a thermal shutdown protection circuit. The R1214 requires only a small numbers of external components to drive white LEDs with constant current and high efficiency. The power controlling method can be selected from fixed PWM control or PWM/VFM auto switching control. The brightness of the LEDs can be adjusted quickly by applying a 200-Hz to 300-kHz PWM signal to the PWM pin. A 1.27-mm square compact WLCSP-9-P1 package is available.

规格&数据表

  消费
输入电压范围 2.7 V to 5.5 V (6.5 V)
工作温度范围 -40°C to 85°C (125°C)
电源电流 Typ. 500 µA
待机电流 Typ. 0.2 µA
输出电压范围 Externally Adjustable: Max. 29 V
驱动器导通电阻 Typ. 0.25 Ω (VIN = 3.6 V)
振荡器频率 Typ. 750 kHz, 450 kHz
最大占空比 Typ. 96% (R1214Z211x)
Typ. 94% (R1214Z221x)
封装 WLCSP-9-P1
LED電流精度 ±2.0% (R1214ZxxxA/B)
±1.5% (R1214ZxxxC/D)

下载数据表

保护回路/功能

功能说明

TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust
                   

技术资料

Typical Application

Typical Application

R1214Z Efficiency vs. Output Current

R1214Z Efficiency vs. Output Current

品质&封装

产品名称 对应 封装 标注 信赖性
R1214Z2x1x-E2-F
  • gradeConsumerC
  • plpP
WLCSP-9-P1 R1214Z R1214Z-F

有关产品的详细信息,请参见数据表。
封装文件包括封装尺寸,卷带规格,卷带盘尺寸,功耗和建议的焊盘图案。
请联系我们或我们的代理商以获取未发布的可靠性信息。

买入/样品

功能说明

TSD 热关断电路
ILX LX Current Limit Function
OCP 过流保护
OVP 过压保护
UVLO 欠压锁定功能
OVLO Overvoltage Lockout Protection
Reverse 反向电流保护电路
Shutdown 关机功能
Soft Start 软启动功能
SSCG Spread Spectrum Clock Generator Function
PGOOD Power Good Output
Auto Discharge 自动放电功能
Anti-ringing Anti-ringing Switch Function
Sequencing Start-up Sequencing Control
Max Duty 最大占空比
Ext. Phase 外部可调相位补偿
LED Adjust LED High-speed Dimming Control

用以下条件检索类似商品

分类:DC / DC开关稳压器

拓扑结构 Boost
输入电压
min (V)
2.7
输入电压
max (V)
5.5
输出电压
max (V)
29
消费电流
(µA)
500