MP7745DF datasheet(2/13 Pages) MPS

2 / 13 page

MP7745 – 2 x20 W CLASS D STEREO SINGLE ENDED AUDIO AMPLIFIER

MP7745 Rev. 0.9

www.MonolithicPower.com

5/11/2009

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

ORDERING INFORMATION

Part Number*

Package

Top Marking

Temperature

MP7745DF

TSSOP20F

MP7745DF

–40

°C to +85°C

*For Tape & Reel, add suffix –Z (e.g. MP7745DF–Z). For Lead Free, add suffix –LF (e.g. MP7745DF–LF–Z)

PACKAGE REFERENCE

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage VDD ...................................... 32V

BS Voltage.................. VSW – 0.3V to VSW + 6.5V

Enable Voltage VEN........................–0.3V to +6V

VSW...................–1V (-5V for <10nS) to VDD + 1V

VPIN, VNIN ................................... –1V to VDD + 1V

AGND to PGND ..........................–0.3V to +0.3V

Continuous Power Dissipation (TA = +25°C)

(2)

……………………………………………....3.1W

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

Lead Temperature ....................................260

°C

Storage Temperature.............. –65

°C to +150°C

Recommended Operating Conditions

(3)

Supply Voltage VDD ..........................9.5V to 26V

Operating Temperature TA........ –40°C to +85°C

Thermal Resistance

(4)

θJA

θJC

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

°C

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 JESD5 1-7, 4-layer PCB.

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