HM8116 datasheet(4/9 Pages) HMSEMI

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Standoff 42V 0.6A 800kHz Sync Step-Down Regulator

Thermal Information

Item

Description

Value

Unit

RθJA

Junction-to-ambient thermal resistance (1)(2)

120

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

°C/W

Note (1): The package thermal impedance is calculated in accordance to JESD 51-7.

Note (2): Thermal Resistances were simulated on a 4-layer, JEDEC board

Electrical Characteristics (1) (2) (3)

Note (1): VIN=12V, TA = 25°C, unless otherwise noted.

Parameter

Test Conditions

Min

Typ.

Max

Unit

Input Voltage Range

Supply Current in Operation

PSM Mode

400

800

PWM Mode

Supply Current in Shutdown

VEN =0 or EN = GND

Regulated Feedback Voltage

0.785

0.800

0.815

High-Side Switch On-Resistance

500

mΩ

Low-Side Switch On-Resistance

300

mΩ

High-Side Switch Leakage Current

VEN=0V, VSW=0V

Upper Switch Current Limit

Minimum Duty Cycle

Switching Frequency

800

kHz

Maximum Duty Cycle

VFB=0.8V

Minimum On-Time

Minimum Off-Time

EN Input Current

VEN=2V

VEN=0V

FB Input Current

Under-Voltage Lockout

Threshold-Hysteresis

On Threshold

3.4

Off Threshold

3.1

Shutdown Threshold

Device ON

1.1

Device OFF

1.0

EN up Threshold

VEN-Rising

1.05

1.15

1.25

EN Threshold Hysteresis

140

Soft Start

Thermal Shutdown

150

℃

Thermal Hysteresis

℃

Note (1): MOSFET on-resistance specifications are guaranteed by correlation to wafer level measurements.

Note (2): Thermal shutdown specifications are guaranteed by correlation to the design and characteristics analysis.

HM8116 Datasheet(PDF) 4 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

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