MP5921

– 16V, 50A, 1mΩ RDS(ON), HOT-SWAP INTELLI-FUSE SOLUTION

MP5921 Rev. 1.1

www.MonolithicPower.com

13

5/17/2022

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TYPICAL PERFORMANCE CHARACTERISTICS (continued)

VIN = 12V, COUT = 4700µF, CSS = 100nF, RCS = RIMON =

2kΩ, RCLREF = 110kΩ, GOK is pulled

up to VDD3, TA = +25°C, unless otherwise noted.

SCP Entry

Short-Circuit Start-Up

CH1: VOUT

5V/div.

CH2: VIN

5V/div.

CH3: GOK

2V/div.

CH4: IIN

25A/div.

CH1: D_OC

2V/div.

CH3: GOK

2V/div.

CH2: CS

500mV/div.

CH4: IIN

10A/div.

10µs/div.

1ms/div.

D_OC Status at Normal Operation

Increase Load, D_OC is pulled down when CS

reaches 0.94V

VIN OVP

IOUT = 5A, apply 18.5V on VIN, then turn off VIN

CH1: VOUT

5V/div.

CH3: D_OC

2V/div.

CH2: CS

500mV/div.

CH4: IIN

25A/div.

CH2: VIN

10V/div.

CH1: VOUT

10V/div.

CH3: GOK

2V/div.

CH4: IIN

5A/div.

400µs/div.

10ms/div.

Current Balance During Start-Up

at Paralleling

3-MP5921 parallel, RIMON = RCS per MP5921,

IOUT = 0A

Current Balance During Start-Up

at Paralleling

3-MP5921 parallel, RIMON = RCS per MP5921,

IOUT = 37.5A

CH1: VOUT

5V/div.

CH2: CS1

200mV/div.

CH3: CS2

200mV/div.

CH4: CS3

200mV/div.

CH1: VOUT

5V/div.

CH2: CS1

200mV/div.

CH3: CS2

200mV/div.

CH4: CS3

200mV/div.

4ms/div.

4ms/div.