MP8042 – HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE

INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE

MP8042 Rev. 0.9

www.MonolithicPower.com

2

5/23/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2006 MPS. All Rights Reserved.

TM

PACKAGE REFERENCE

NC

AGND1

PWM1

STBY

PWM2

FAULT

SHDN

AGND2

NC

VDR2

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

VDR1

BST1

PGND1

OUT1

VDD1

NC

VDD2

OUT2

PGND2

BST2

TOP VIEW

EXPOSED PAD

Part Number*

Package

Temperature

MP8042DF

TSSOP20F

–40

°C to +85°C

For RoHS Compliant Packaging, add suffix –LF (eg.

MP8042DF–LF–Z)

ABSOLUTE MAXIMUM RATINGS

(1)

VDD1/2 Supply Voltage............................... 26V

OUT1/2 to BST1/2 ......................... –0.3V to +6V

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

Storage Temperature ..............–55

°C to +150°C

Recommended Operating Conditions

(2)

VDD1/2 Supply Voltage................... 7.5V to 24V

Peak Output Current......................6A Maximum

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

°C to +85°C

Thermal Resistance

(3)

TSSOP20F ............................. 40 ....... 6....

°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

SHDN

V

Parameters

Symbol Condition

Min

Typ

Max

Units

VDD Operating Current

2.1

2.5

mA

VDD Shutdown Current

4.0

10

µA

VDD Operating Threshold, Low

5.8

6.1

V

VDD Operating Threshold, High

6.63

7.2

V

STBY

Threshold, Low

1.0

1.2

V

STBY

Threshold, High

1.85

2.0

V

SHDN Threshold, Low

1.0

1.2

V

SHDN

Threshold, High

1.9

2.0

V

1.5

1.69

V

1.83

2.0

V

PWM Input Bias Current

1

µA

OUT On Resistance

(4)

Side

0.15

Ω

5

A

OUT Current Limit

(4)

5

A