MP8040DN datasheet(2/8 Pages) MPS

2 / 8 page

MP8040 – HIGH CURRENT INTEGRATED HALF BRIDGE + DRIVER

MP8040 Rev. 1.5

www.MonolithicPower.com

5/3/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

PACKAGE REFERENCE

Part Number*

Package

Temperature

MP8040DN

SOIC8N

(Exposed Pad)

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (eg. MP8040DN–Z)

For Lead Free, add suffix –LF (eg. MP8040DN–LF–Z)

ABSOLUTE MAXIMUM RATINGS

(1)

SP Supply Voltage (VSP).............................. 28V

SW Pin Voltage .............................. –0.3V to VSP

SW to BS ....................................... –0.3V to +6V

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

Storage Temperature ..............–55

°C to +150°C

Recommended Operating Conditions

(2)

SP Supply Voltage (VSP).................. 7.5V to 24V

Peak Output Current......................9A Maximum

Operating Temperature .............–40

°C to +85°C

Thermal Resistance

(3)

θJA

θJC

SOIC8N .................................. 50 ....... 8....

°C/W

Notes:

1) Exceeding these ratings may damage the device.

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

operating conditions.

3) Measured on approximately 1” square of 1 oz copper.

ELECTRICAL CHARACTERISTICS

VSP = 12V, VSHDN = 0V, TA = +25°C, unless otherwise noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

SP Operating Current

1.5

2.5

SP Shutdown Current

VSHDN = 2V

2.5

µA

SHDN, SP Threshold Low

SHDN, SP Threshold High

SHDN, SP Input Bias Current

µA

SW On Resistance

VSP = 7.5V, High-Side and Low-Side

0.1

Ω

VPWM = 5, (Sinking)

SW Current Limit

(4)

VPWM = 0, (Sourcing)

SW Switching Frequency

VPWM = 0 to 2V, 50% Duty Cycle

1.2

MHz

SW Maximum Duty Cycle

(5)

VSP = 7.5V, VPWM = 2V, CSW 100nF,

fSW = 3.3KHz

99.5

SW Rise/Fall Time

VPWM = 0 to 5V

PWM Pulse Width

VPWM = 0 to 2V, High or Low Pulse

200

PWM to SW Delay Time Rising

VPWM = 0 to 5V

PWM to SW Delay Time

Falling

VPWM = 5 to 0V

Thermal Shutdown

Temperature

(4)

TJ Rising, Hysteresis = 20°C

160

°C

Notes:

4) Guaranteed by design; not production tested.

5) SW drives low for 1.5µs every 300µs to charge the BS to SW capacitor.

PWM

GND

FLT

DRV

SHDN

TOP VIEW

MP8040_PD01-SOIC8N

EXPOSED PAD

ON BACKSIDE

CONNECT TO PIN 4

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