Datasheet > MP2370DGT

MP2370DGT

更新时间： 2024-02-02 07:02:25

品牌	Logo	应用领域
芯源 - MPS		驱动光电二极管接口集成电路
页数	文件大小	规格书
11页	469K
描述
Switching Regulator,

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技术参数
数据手册

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MP2370DGT 技术参数

是否Rohs认证：	不符合	生命周期：	Active
包装说明：	HVSON, SOLCC6,.08,20	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.66	输入特性：	STANDARD
接口集成电路类型：	LED DISPLAY DRIVER	JESD-30 代码：	S-PDSO-N6
长度：	2 mm	复用显示功能：	NO
功能数量：	1	区段数：	1
端子数量：	6	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVSON	封装等效代码：	SOLCC6,.08,20
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
座面最大高度：	0.8 mm	最大压摆率：	1 mA
最大供电电压：	24 V	最小供电电压：	4.5 V
标称供电电压：	12 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	DUAL
宽度：	2 mm	Base Number Matches：	1

MP2370DGT 数据手册

MP2370 – 1.2A, 24V, 1.4MHz STEP-DOWN WHITE LED DRIVER

OPERATION

The MP2370 is a current mode buck regulator.

That is, the EA output voltage is proportional to

the peak inductor current.

If the sum of the Current Sense Amplifier output

and the Slope Compensation signal does not

exceed the EA output for a whole cycle, then

the falling edge of the CLK resets the Flip-Flop.

At the beginning of a cycle, M1 is off. The EA

output voltage is higher than the current sense

amplifier output, and the current comparator’s

output is low. The rising edge of the 1.4MHz

CLK signal sets the RS Flip-Flop. Its output

turns on M1 thus connecting the SW pin and

inductor to the input supply.

The output of the Error Amplifier integrates the

voltage difference between the feedback and

the 0.15V bandgap reference. The polarity is

such that a FB pin voltage lower than 0.15V

increases the EA output voltage. Since the EA

output voltage is proportional to the peak

inductor current, an increase in its voltage also

increases current delivered to the output.

The increasing inductor current is sensed and

amplified by the Current Sense Amplifier. Ramp

compensation is summed to the Current Sense

Amplifier output and compared to the Error

Amplifier output by the PWM Comparator.

When the sum of the Current Sense Amplifier

output and the Slope Compensation signal

exceeds the EA output voltage, the RS Flip-

Flop is reset and M1 is turned off. The external

Schottky rectifier diode (D1) conducts the

inductor current.

The internal floating power MOSFET driver (M1)

is powered by an external bootstrap capacitor.

When M1 turns off and when external Schottky

turns on, the bootstrap capacitor is charged

through the internal diode (D) and regulator. For

application with lower input voltage, connect the

external diode between the IN pin and BST pin

to enhance the floating MOS driver capability.

RAMP

GENERATOR

REGULATO

OSCILLATOR

REGULATOR

1.4MHz/700KHz

CURRENT

LIMIT

1pF

COMPARATOR

27pF

REFERENCE

0.15V

PWM

ERROR

AMPLIFIER

COMPARATOR

GND

Figure 1—Functional Block Diagram

MP2370 Rev. 1.03

6/29/2016

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

1...4 5 678 9 10 11

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MP2370DGT-Z	MPS	Switching Regulator,	获取价格
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MP2371	MPS	1.8A, 24V, 700KHz降压变换器	获取价格

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