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MP8040

High Current Integrated Half Bridge + Driver

Monolithic Power Systems 

TM

MP8040 – HIGH CURRENT INTEGRATED HALF BRIDGE + DRIVER

PACKAGE REFERENCE

TOP VIEW

PWM 1

SP 2

SW 3

GND 4

EXPOSED PAD

ON BACKSIDE

CONNECT TO PIN 4

8 FLT

7 DRV

6 SHDN

5 BS

MP8040_PD01-SOIC8N

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

SP Operating Current

SP Shutdown Current

SHDN, SP Threshold Low

SHDN, SP Threshold High

SHDN, SP Input Bias Current

SW On Resistance

SW Current Limit (4)

SW Switching Frequency

SW Maximum Duty Cycle (5)

SW Rise/Fall Time

PWM Pulse Width

PWM to SW Delay Time Rising

PWM to SW Delay Time

Falling

Thermal Shutdown

Temperature (4)

VSHDN = 2V

2

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

VPWM = 5, (Sinking)

VPWM = 0, (Sourcing)

VPWM = 0 to 2V, 50% Duty Cycle

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

fSW = 3.3KHz

VPWM = 0 to 5V

VPWM = 0 to 2V, High or Low Pulse 200

VPWM = 0 to 5V

VPWM = 5 to 0V

TJ Rising, Hysteresis = 20°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.

Typ Max Units

1.5 2.5 mA

2.5 10 µA

1

V

V

1

µA

0.1

Ω

9

A

9

A

1.2 MHz

99.5

%

20

ns

ns

70

ns

70

ns

160

°C

MP8040 Rev. 1.5

www.MonolithicPower.com

2

5/3/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2005 MPS. All Rights Reserved.

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