Datasheet > MP2618

MP2618

更新时间： 2024-04-09 19:01:25

品牌	Logo	应用领域
芯源 - MPS		电池开关
页数	文件大小	规格书
19页	614K
描述
600kHz开关型锂离子电池充电器, 带电源路径管理功能

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数据手册

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MP2618 数据手册

MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER

PIN FUNCTIONS

Pin #

Name Description

1,10,12,22

No Connection

Thermistor Input. Connect a resistor from this pin to the pin VREF33 and the Thermistor

from this pin to ground.

NTC

Valid Input Supply Indicator. A logic LOW on this pin indicates the presence of a valid

input supply.

ACOK

Charging status Indicator. A logic LOW indicates charging operation. The pin will become

an open drain once the charging is stopped.

CHGOK

VREF33

Internal linear regulator 3.3V reference output. Bypass to GND with a 1µF ceramic

capacitor.

VREF25 Internal linear regulator 2.5V reference output.

On/Off Control Input.

SHDN

RG1

Shutdown control of current sense amplifier. Connect this pin to EN.

Gain Resistor of current sense amplifier.

Ground. This pin is the voltage reference for the regulated output voltage. For this reason

care must be taken in its layout. This node should be placed outside of the D1 to C1

ground path to prevent switching current spikes from inducing voltage noise into the part.

Connect exposed pad to ground plane for optional thermal performance.

GND,

Exposed

Pad

11, 21

OUT1 Output for Driving Resistor Load.

RG2

VCC

Gain Resistor of current sense amplifier.

Power Input of current sense amplifier.

COMPV VLOOP Compensation. Decouple this pin with a capacitor and a resistor.

Command Input for the Number of Li-Ion Cells. Make this pin float for 3-cell operation or

connect this pin to ground for 2-cell operation.

CELLS

COMPI ILOOP Compensation. Decouple this pin with a capacitor and a resistor.

BATT Positive Battery Terminal.

CSP

TMR

Battery Current Sense Positive Input. Connect a resistor RS1 between CSP and BATT.

Set time constant. 0.1uA charge and discharge the external cap. Connect TMR pin to

GND to disable the internal timer.

Bootstrap. This capacitor is needed to drive the power switch’s gate above the supply

voltage. It is connected between SW and BST pins to form a floating supply across the

power switch driver.

BST

25, 26

AIN

Switch Output.

Power Supply Voltage. The MP2618 operates from a +5.5V to +24V unregulated input.

C1 is needed to prevent large voltage spikes from appearing at the input.

Controller Supply Voltage.

MP2618 Rev. 0.92

7/14/2010

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

1...3 4 567 8 9...19

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MP2618EV	MPS	Power Supply Support Circuit, Adjustable, 1 Channel, 4 X 5 MM, MO-220VHGD-3, QFN-28	获取价格
MP2618EV-LF	MPS	Power Supply Support Circuit, Adjustable, 1 Channel, 4 X 5 MM, ROHS COMPLIANT, MO-220VHGD-	获取价格
MP2618EV-LF-Z	MPS	Power Supply Support Circuit, Adjustable, 1 Channel, 4 X 5 MM, ROHS COMPLIANT, MO-220VHGD-	获取价格
MP2618EV-Z	MPS	Power Supply Support Circuit, Adjustable, 1 Channel, 4 X 5 MM, MO-220VHGD-3, QFN-28	获取价格
MP2619	MPS	2A, 24V Input, 600kHz 2-3 Cell Switching Li-Ion Battery Charger With System Power Path Man	获取价格
MP2619EV	MPS	2A, 24V Input, 600kHz 2-3 Cell Switching Li-Ion Battery Charger With System Power Path Man	获取价格
MP2623	MPS	Stand-Alone, 2A, 1- or2-Cell Switching LiFePO4 Battery Charger	获取价格
MP2623GR	MPS	Stand-Alone, 2A, 1- or2-Cell Switching LiFePO4 Battery Charger	获取价格
MP2624	MPS	I2C Controlled 4.5A Single Cell USB / Adaptor Charger with Narrow VDC Power Path Managemen	获取价格
MP2624A	MPS	4.5A, I2C-Controlled, Single-Cell USB/Adaptor Charger with Narrow VDC Power-Path Managemen	获取价格

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