MP7770 datasheet(3/23 Pages) MPS

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MP7770 –2 X 45W STEREO SE OR 90W MONO BTL CLASS D AUDIO AMPLIFIER

MP7770 Rev.1.0

www.MonolithicPower.com

12/4/2012

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

ORDERING INFORMATION

Part Number*

Package

Top Marking

MP7770GF

TSSOP28-EP

MP7770

**MP7770GFR

TSSOP28-EPR

MP7770R

* For Tape & Reel, add suffix –Z (e.g. MP7770GF–Z);

** Contact Factory for TSSOP28F-EPR Availability

PACKAGE REFERENCE

TSSOP28-EP

SW1

BST1

SW1

VDD1

PGND2

VDD1

PGND1

SW2

BST2

VDD2

N/C

REF1

IN1

AGND1

TIMER1

FAULT

OTW

REF2

AGND2

TIMER2

UVP

IN2

N/C

PGND2

PGND1

EXPOSED PAD

ON TOP

TSSOP28-EPR

ABSOLUTE MAXIMUM RATINGS (1)

Supply Voltage VDD ...................................... 40V

BS Voltage.............. (VSW - 0.3V) to (VSW + 6.5V)

VOTW, VFAULT, VUVP, VTIMER, VEN .......–0.3V to +6V

VSW.......................................–0.3V to (VDD + 1V)

VREF, VIN .......................................–0.3V to +34V

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

Continuous Power Dissipation (TA = 25°C)

(2)

............................................................ 3.9 W

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 36V

Operating Junction Temp. (TJ)............................

........................................... -40°C to +125°C

Thermal Resistance

(4)

θJA

θJC

TSSOP28F-EP ....................... 32 ....... 6.... °C/W

TSSOP28F-EPR...................... .. ........ 6.... °C/W

The TSSOP28F-EPR is not intended to be used

without

heatsink.

Therefore,

RθJA

TSSOP28F-EPR is not specified.

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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