MCP19124 datasheet(24/236 Pages) MICROCHIP

24 / 236 page

MCP19124/5

DS20005619A-page 24

 2016 Microchip Technology Inc.

Input OVLO Voltage

OVLO Range

OVLOON

8.8

—

VVIN rising

OVLOON Trip

Tolerance

OVLOTOL

-18

—

%VIN rising

OVLO trip set to 18V

VINOVLO = 0x1Fh

OVLO Hysteresis

OVLOHYS

Hysteresis is based upon

the

OVLOON setting

OVLO trip set to 18V

VINOVLO = 0x1Fh

Resolution

nbits

—

bits

Logarithmic Steps

OVLO Comparator

Input-to-Output Delay

—

µs

100 ns rise time to 1V

overdrive on VIN

VIN > OVLO to flag set

Output OV DAC (OVREF)

Resolution

nbits

—

bits

Linear DAC

Full Scale Range

FSR

—

2 x BG

Tolerance

OVREFTOL

-2.0

±0.3

2.0

Trimmed @ code 0=CC

at 25°C,

0°C to 85°C

-3.3

—

3.3

-45°C to 0°C

85°C to 125°C

Output OV Comparator

OV Hysteresis

OVHYS

—50

—

Input Bias Current

IBIAS

—±1

—

µA

Common-Mode Input

Voltage Range

VCMR

0—

3.0

Note 4

Input-to-Output Delay

—

200

—

100 ns rise time to 1V

overdrive on VS

VS > OV to flag set

(Note 4)

Voltage Reference DAC (VREF)

Resolution

nbits

—

V/V

Linear DAC

Full-Scale Range

FSR

—

2 x BG

Pedestal set to BG

4.2

Electrical Characteristics (Continued)

Electrical Specifications: Unless otherwise noted, VIN =12V, FSW = 150 kHz, TA =+25°C. Boldface specifications

apply over the TA range of -40°C to +125°C.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Note 1:

Refer to Section 14.0 “Power-Down Mode (Sleep)”.

2: VDD is the voltage present at the VDD pin.

3: Dropout voltage is defined as the input-to-output voltage differential at which the output voltage drops 2%

below its nominal value measured at a 1V differential between VIN and VDD.

4: Ensured by design, not production tested.

5: These parameters are characterized, but not production tested.

6: The VDD LDO will limit the total source current to a maximum of 35 mA. Individually each pin can source a

maximum of 15 mA.

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