MP4655 datasheet(4/31 Pages) MPS

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MP4655–PURE, SINGLE-STAGE, LLC, LED CURRENT AND SYSTEM VOLTAGE CONTROLLER

MP4655 Rev 1.0

www.MonolithicPower.com

2/2/2016

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

ABSOLUTE MAXIMUM RATINGS

(1)

VIN, PS_ON, PWMIN .....................-0.3V to 40V

GL, GR, VCC, DIMO, CFLY............-0.3V to 18V

SOURCE ........................................-0.3V to 30V

VDR_DN, GATEN...........................-0.3V to 48V

VDR_DN - SOURCE, GATEN - SOURCE……….

........................................................-0.3V to 18V

IOCP/FAULT, VOCP, CMODE .........-6.5V to 6V

Other pins ......................................-0.3V to 6.5V

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

Continuous power dissipation (TA = +25°C)

(2)

SOIC-28..................................................... 2.1W

Storage temperature................ -65°C to +150°C

Operating frequency .............................. 400kHz

Recommended Operating Conditions

(3)

Supply voltage (VIN) ........................-0.3V to 35V

Operating frequency ............... 20kHz to 350kHz

Operating junction temp. ......... -40°C to +125°C

Thermal Resistance

(4)

θJA

θJC

SOIC-28 ................................. 60 ...... 30... °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 produces an excessive die temperature, causing

the regulator to 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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