MP8044DF datasheet(2/9 Pages) MPS

2 / 9 page

MP8044 - 22V, 4A DUAL CHANNEL POWER HALF-BRIDGE

M8044 Rev. 1.0

www.MonolithicPower.com

5/5/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

ORDERING INFORMATION

Part Number*

Package

Top Marking

Free Air Temperature (TA)

MP8044DF

TSSOP20F

MP8044DF

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (e.g. MP8044DF–Z). For Lead Free, add suffix –LF

(e.g. MP8044DF–LF–Z)

PACKAGE REFERENCE

POR-VFB

AGND1

PWM1

STBYB

PWM2

FAULTB

SHDNB

AGND2

POR-OUT

VDR2

VDR1

BST1

PGND1

SW1

VSP

SW2

PGND2

BST2

TOP VIEW

EXPOSED PAD

GND

ABSOLUTE MAXIMUM RATINGS (1)

VSP Supply Voltage .................................... 24V

SW1/2 Pin Voltage.............. –0.3V to VSP + 0.3V

SW1/2 to BST1/2 ...........................–0.3V to +6V

Voltage at All Other Pins................–0.3V to +6V

Continuous Power Dissipation (TA = +25°C)

(2)

……………………………………………....3.1W

Storage Temperature.............. –55

°C to +150°C

Junction Temperature.............................150°C

Lead Temperature .................................260°C

Recommended Operating Conditions

(3)

VSP Supply Voltage ........................ 7.5V to 22V

Peak Output Current......................4A Maximum

Operating Junct. Temp (TJ) ......-40°C to +125°C

Thermal Resistance

(4)

θJA

θJC

TSSOP20F ............................. 40 ....... 6....

°C/W

Notes:

1) Exceeding these ratings may damage the device.

2) The maximum allowable power dissipation is a function of

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

ambient thermal resistance θJA, and the ambient temperature

TA. The maximum allowable continuous power dissipation at

any ambient temperature is calculated by PD (MAX) = (TJ

(MAX)-TA)/θJA. Exceeding the maximum allowable power

dissipation will cause excessive die temperature, and the

regulator will go into thermal shutdown. Internal thermal

shutdown circuitry protects the device from permanent

damage.

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

operating conditions.

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

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