MP8007 ― IEEE 802.3AF PD WITH 13W FLYBACK / BUCK CONVERTER

MP8007 Rev.1.0

www.MonolithicPower.com

3

6/27/2016

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ABSOLUTE MAXIMUM RATINGS (1)

Pins Voltage Respects to VSS: (2)

VDD, RTN, DET, T2P, AUX, GND, AGND

..............................................-0.3V to +100V

CLASS, FTY ................................-0.3V to +6.5V

Pins Voltage Respects to GND(2):

VDD ............................................-0.3V to +100V

SW ..............................................-0.7V to +180V

FB1 ...........................................-0.7V to +6.5V(3)

VCC(4), MODE, ILIM, PG..............-0.3V to +6.5V

Pins Voltage Respects to VDD:

AUX, FB2.....................................-6.5V to +0.3V

Pins Current:

T2P ........................................................... 10mA

VCC Sinking Current............................ 1.5 mA(4)

AUX Sinking Current.............................. -5 mA(5)

FB1 Sinking Current.............................. ±1 mA(3)

Continuous Power Dissipation (TA=+25)

(6)

QFN28 4X5……………………….…..……3.12W

Junction Temperature...............................150

C

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

C

Storage Temperature............... -65

C to +150C

Recommended Operating Conditions (7)

Supply Voltage VDD .............................0V to 57V

Switching Voltage VSW ................-0.5V to +150V

Maximum T2P Current................................ 5mA

Maximum VCC Sinking Current ............ 1.2mA(4)

Maximum AUX Sinking Current ............. -3 mA(5)

Maximum FB1 Sinking Current .......... ±0.5 mA(3)

Maximum Switching Frequency ............ 200 kHz

Maximum Switching Current Limit ................. 3A

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

Thermal Resistance (8)

θJA

θJC

QFN-28 (4mmx5mm) ……

. ….…40

9 °C/W

Notes:

1) Exceeding these ratings may damage the device.

2) GND and AGND must be connected to RTN

3) Refer to the “Converter Output Voltage Setting” section.

4) VCC voltage can be pulled higher than this rating, but the

external pull-up current should be limited. Refer to “VCC

sinking current” rating and “VCC Power Supply Setting”

section.

5) When VDD to Adapter-ground voltage is high, AUX-VDD

voltage may exceed -6.5V if the divider resistor is not

appropriate, in this condition VDD will clamp the -6.5V voltage

on AUX pin, but the current should be limited by external

resistor.

6) 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.

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

operating conditions.

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