Datasheet > R1201N051A-TR-FE

R1201N051A-TR-FE

更新时间： 2024-11-11 20:57:31

品牌	Logo	应用领域
理光 - RICOH		开关光电二极管
页数	文件大小	规格书
17页	362K
描述
Switching Regulator, 1A, 1200kHz Switching Freq-Max, CMOS, PDSO6, ANTIMONY AND HALOGEN FREE, SOT-23, 6 PIN

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R1201N051A-TR-FE 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	SOT-23
包装说明：	SOT-23, 6 PIN	针数：	6
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.83
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	5.5 V	最小输入电压：	1.8 V
标称输入电压：	3.6 V	JESD-30 代码：	R-PDSO-G6
JESD-609代码：	e3	长度：	2.9 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	6	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	1 A
标称输出电压：	24 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	LSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	1.4 mm
表面贴装：	YES	切换器配置：	BOOST
最大切换频率：	1200 kHz	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.95 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	1.6 mm	Base Number Matches：	1

R1201N051A-TR-FE 数据手册

R1201x SERIES

STEP-UP DC/DC CONVERTER FOR WHITE LED BACK LIGHT

NO.EA-207-130509

OUTLINE

The R1201x Series are PWM control type step-up DC/DC converter ICs with low supply current.

The R1201x is fully dedicated to drive White LEDs with constant current. Each of these ICs consists of an

NMOS FET, a forward diode, an oscillator, a PWM comparator, a voltage reference unit, an error amplifier, a

current limit circuit, an under voltage lockout circuit (UVLO), and an over-voltage protection circuit (OVP).

The R1201x can drive white LEDs in constant current with high efficiency by using an inductor, a resistor and

capacitors as external components. A diode is built-in; therefore it is possible to drive up to 5 serial white LEDs

without an external diode.

The LEDs current can be set by an external resistance value and can adjust the dimming of LEDs by CE pin

according to the signal of PWM. Feedback voltage is 0.2V, therefore power loss by current setting resistance is

small and efficiency is good. Maximum duty cycle is internally fixed, Typ. 91%. LEDs can be driven from low

voltage. Protection circuits are the current limit of Lx peak current, the over voltage limit of output, and the under

voltage lockout function. The oscillator frequency can be selected from 1MHz or 1.2MHz.

It is controllable the dimming of LEDs quickly when the PWM signal (between 200Hz to 300kHz) input to CE

pin. If the CE pin input is "L" in the fixed time (Typ. 0.5ms), the IC becomes the standby mode and turns OFF

LEDs.

FEATURES

• Supply Current...........................................................Typ. 450μA (R1201xxx3A/4A)

Typ. 500μA (R1201xxx1A/2A)

• Standby Current.........................................................Max. 5μA

• Input Voltage Range ..................................................1.8V to 5.5V

• Feedback Voltage ......................................................0.2V

• Feedback Voltage Accuracy.......................................±10mV

• Temperature-Drift Coefficient of Feedback Voltage...±150ppm/°C

• Oscillator Frequency..................................................Typ. 1MHz, Typ. 1.2MHz

• Maximum Duty Cycle.................................................Typ. 91%

• Switch ON Resistance ...............................................Typ. 1.35Ω

• UVLO Detector Threshold..........................................Typ. 1.6V

• Lx Current Limit Protection ........................................Typ. 700mA

• OVP Detector Threshold............................................Select from 9.5V, 14.0V, 18.5V, 20.6V, 21.6V

• Switching Control.......................................................PWM

• LED dimming control..................................................by external PWM signal (Frequency 200Hz to 300kHz)

• Packages ...................................................................DFN1616-6 (Non-promotion), SOT-23-6

• Ceramic capacitors are recommended......................0.22μF (R1201x02xA/ 03xA/ 04xA)

1μF (R1201x05xA)

APPLICATION

• White LED Backlight for portable equipment

12 3 4 5 6 7...17

中文翻译

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与R1201N051A-TR-FE相关器件

型号	品牌	获取价格	描述	数据表
R1201N052A-TR-F	RICOH	获取价格	Switching Regulator, 1A, 1400kHz Switching Freq-Max, PDSO6, LEAD FREE, SOT-23, 6 PIN
R1201N052A-TR-FE	RICOH	获取价格	Switching Regulator, 1A, 1200kHz Switching Freq-Max, CMOS, PDSO6, ANTIMONY AND HALOGEN FRE
R1201N054A-TR-FE	RICOH	获取价格	Switching Regulator, 1A, 1000kHz Switching Freq-Max, CMOS, PDSO6, ANTIMONY AND HALOGEN FRE
R1202L311A-TR	RICOH	获取价格	Switching Regulator, 0.45A, 1400kHz Switching Freq-Max, CMOS, PDSO6, 1.60 X 1.60 MM, HALOG
R1202L311B-TR	RICOH	获取价格	Switching Regulator, 0.45A, 1400kHz Switching Freq-Max, CMOS, PDSO6, 1.60 X 1.60 MM, HALOG
R1202L321A-TR	RICOH	获取价格	Switching Regulator, 0.9A, 1400kHz Switching Freq-Max, CMOS, PDSO6, 1.60 X 1.60 MM, HALOGE
R1202L321B-TR	RICOH	获取价格	Switching Regulator, 0.9A, 1400kHz Switching Freq-Max, CMOS, PDSO6, 1.60 X 1.60 MM, HALOGE
R1202L421A-TR	RICOH	获取价格	Switching Regulator, 0.9A, 1400kHz Switching Freq-Max, CMOS, PDSO6, 1.60 X 1.60 MM, HALOGE
R1202L511A-TR	RICOH	获取价格	Switching Regulator, 0.45A, 1400kHz Switching Freq-Max, CMOS, PDSO6, 1.60 X 1.60 MM, HALOG
R1202L711A-TR	RICOH	获取价格	Switching Regulator, 0.45A, 1400kHz Switching Freq-Max, CMOS, PDSO6, 1.60 X 1.60 MM, HALOG

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