Datasheet > MP3378

MP3378

更新时间： 2024-04-09 19:02:43

品牌	Logo	应用领域
芯源 - MPS		控制器
页数	文件大小	规格书
25页	1089K
描述
4 路 WLED 控制器和高效率降压变换器

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数据手册

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MP3378 数据手册

MP3378 – 4-CHANNEL WLED CONTROLLER PLUS BUCK CONVERTER

PACKAGE REFERENCE

TOP VIEW

PWM

GND1

OSC

GND1

OSC

ISET

ADIM

LED4

LED3

LED2

LED1

OVP

PWM

COMP

VCC1

VIN1

ISET

ADIM

LED4

COMP

VCC1

VIN1

LED3

LED2

GATE

ISENSE

GATE

ISENSE

SYNC

BST

Exposed Pad

Connect to GND

LED1

OVP

SYNC

BST

AGND

GND2

AGND

GND2

AAM

VCC2

AAM

VCC2

VIN2

SOIC28

TSSOP28EP

ABSOLUTE MAXIMUM RATINGS ⁽¹⁾

WLED Driver

Thermal Resistance ⁽⁴⁾

SOIC-28…………………..……62.5……30....°C/W

θ_JAθ_JC

V_IN1........................................... -0.3 V to + 28 V

V_LED1to V_LED4............................... -1 V to + 55 V

V_GATE, V_CC1, V_ISENSE.................. -0.3 V to + 6.5 V

All other pins............................. –0.3 V to VCC1

Buck Converter

TSSOP-28 EP……………...…32…….…6....°C/W

NOTES:

1) Exceeding these ratings may damage the device. The voltage

is measured with a 20 MHz bandwidth limited oscilloscope.

2) The maximum allowable power dissipation is a function of the

maximum junction temperature T_J(MAX), the junction-to-

ambient thermal resistance θ_JA, and the ambient temperature

T_A. The maximum allowable continuous power dissipation at

any ambient temperature is calculated by P_D(MAX) = (T_J

(MAX)-T_A)/θ_JA. Exceeding the maximum allowable power

dissipation produces an excessive die temperature, causing

the regulator to go into thermal shutdown. Internal thermal

shutdown circuitry protects the device from permanent

damage.

V_IN2, V_SW..................................... –0.3 V to 28 V

V_BST....................................................V_SW+ 6 V

All other pins................................. –0.3 V to 6 V

(2)

Continuous power dissipation (T_A= 25°C)

SOIC-28 ......................................................2 W

TSSOP-28 EP ..........................................3.9 W

Junction temperature...............................150°C

Lead temperature ....................................260°C

3) The device is not guaranteed to function outside of its

operating conditions.

4) Measured on JESD51-7, 4-layer PCB.

Recommended Operating Conditions ⁽³⁾

Supply voltage (V_IN1, V_IN2) ................ 5 V to 24 V

Operating junction temp. (T_J). ..-40°C to +125°C

MP3378 Rev. 1.01

5/26/2017

www.MonolithicPower.com

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

1 2 345 6 7...25

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