MP8046 –28V, 5A DUAL CHANNEL POWER HALF-BRIDGE

MP8046 Rev. 0.92

www.MonolithicPower.com

3

4/29/2010

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© 2010 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

SHDN

V

Parameters

Symbol Condition

Min

Typ

Max

Units

VDD Operating Current

2.4

2.6

mA

VDD Shutdown Current

SHDN

V

= 0V

5.0

15

µA

VDD Operating Threshold, Low

5.7

5.9

V

VDD Operating Threshold, High

6.79

7.2

V

STBY Threshold, Low

1.0

1.2

V

STBY

Threshold, High

1.87

2.2

V

SHDN

Threshold, Low

1.0

1.2

V

SHDN Threshold, High

1.87

2.2

V

1.0

1.69

V

1.83

2.2

V

PWM Input Bias Current

1

µA

OUT On Resistance

(5)

Side

0.165

Ω

5

A

OUT Current Limit

(5)

5

A

OUT Switching Frequency

0.6

MHz

OUT Maximum Duty Cycle

(6)

99.5

%

OUT Rise/Fall Time

(5)

10

ns

PWM Pulse Width

Pulse

200

ns

Dead Time

(5)

30

ns

PWM to OUT Delay Time Rising

46

55

ns

PWM to OUT Delay Time Falling

47

55

ns

Thermal Shutdown Temperature

(5)

150

°C

Notes:

5) Not production tested.

6) OUT drives low for 1.5µs every 300µs to charge the BST to SW capacitor.