MCP8024 datasheet(7/46 Pages) MICROCHIP

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 2013 Microchip Technology Inc.

DS20005228A-page 7

MCP8024

Feedback Voltage Line

Regulation

VFB/VFB) /

VDD|

—

0.1

0.5

%/V

VDD = 6V to 28V

Feedback Voltage Load

Regulation

VFB / VFB|—

0.1

0.5

IOUT = 5 mA to 150 mA

Feedback Input Bias Current

IFB

-100

—

+100

Sink/Source

Switching Frequency

fSW

—

461

—

kHz

Duty Cycle Range

DCMAX

3—

PMOS Switch On Resistance

RDSON

—0.6

—

Ω

VDD = 13V, TJ=25°C

PMOS Switch Current Limit

IP(MAX)

—2.5

—

Ground Current – PWM Mode

IGND

—

1.5

2.5

Switching

Quiescent Current – PFM

Mode

—

150

200

AIOUT = 0mA

Output Voltage Adjust Range

VOUT

2.0

—

5.0

Output Current

IOUT

150

——mA

250

—

Output Power

POUT

—

750

—

P = IOUT * VOUT

Voltage Supervisor

Undervoltage Lockout Start

UVLOSTRT

—6.0

6.25

VDD rising

Undervoltage Lockout Stop

UVLOSTOP

5.1

5.5

—

VDD falling

Undervoltage Lockout

Hysteresis

UVLOHYS

0.35

0.5

0.65

Overvoltage Lockout All

Functions Disabled

OVLOSTOP

—

32.0

33.0

VDD rising

Overvoltage Lockout All

Functions Enabled

OVLOSTRT

29.0

30.0

—

VDD falling

Overvoltage Lockout

Hysteresis

OVLOHYS

1.0

2.0

3.0

Temperature Supervisor

Thermal Warning

Temperature (115°C)

TWARN

—

Rising temperature,

percentage of thermal

shutdown temperature “MIN”

Thermal Warning Hysteresis

TWARN

—

°C

Falling temperature

Thermal Shutdown

Temperature

TSD

160

170

—

°C

Rising temperature

Thermal Shutdown Hysteresis

TSD

—

°C

Falling temperature

MOTOR CONTROL UNIT

Output Drivers

PWMH/L Input Pull-Down

RPULLDN

kΩ

AC/DC CHARACTERISTICS (CONTINUED)

ectrical Specifications: Unless otherwise noted TJ = -40°C to +150°C.

Parameters

Symbol

Min.

Typ.

Max.

Units

Conditions

Note 1:

The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable

junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). Exceeding the

maximum allowable power dissipation may cause the device operating junction temperature to exceed the

maximum 160°C rating. Sustained junction temperatures above 150°C can impact the device reliability

and OTP data retention.

1000 hour cumulative maximum for OTP data retention (typical).

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