MAX8795AETJ-T Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

Список матч

MAX8795AETJ-T

TFT-LCD DC-DC Converter with Operational Amplifiers

Maxim Integrated 

TFT-LCD DC-DC Converter with

Operational Amplifiers

ELECTRICAL CHARACTERISTICS

(VIN = 3V, VMAIN = VSUP = 14V, VPGND = VAGND = VBGND = 0V, IREF = 25µA, TA = -40°C to +105°C, unless otherwise noted.) (Note3)

PARAMETER

IN Supply Range

IN Undervoltage-Lockout

Threshold

SYMBOL

VIN

(Note 2)

CONDITIONS

VUVLO VIN rising, typical hysteresis = 150mV

MIN

2.5

2.05

MAX

6.0

2.45

UNITS

V

V

IN Quiescent Current

REF Output Voltage

VFB = VFBP = 1.3V, VFBN = 0V,

LX not switching

IIN

VFB = 1.2V, VFBP = 1.4V, VFBN = 0V,

LX switching

No external load

1.218

1.0

mA

3

1.277

V

REF Undervoltage-Lockout

Threshold

Rising edge, typical hysteresis = 160mV

1.15

V

MAIN STEP-UP REGULATOR

Output Voltage Range

Operating Frequency

FB Regulation Voltage

FB Line Regulation

FB Transconductance

LX On-Resistance

LX Current Limit

OPERATIONAL AMPLIFIERS

SUP Supply Range

SUP Overvoltage Fault Threshold

VMAIN

fOSC

VFB

RLX(ON)

ILIM

No load

VIN = 2.5V to 6V

∆ICOMP = ±2.5µA

ILX = 200mA

VFB = 1.2V, duty cycle = 75%

VSUP

VIN

900

1.198

75

2.5

6

18.0

18

1400

1.260

±0.4

280

300

3.5

V

kHz

V

%/ V

µS

mΩ

A

18

V

19.9

V

SUP Supply Current

ISUP

Buffer configuration, VPOS_ = VSUP / 2,

no load

5

mA

Input Offset Voltage

VOS

(VNEG_, VPOS_, VOUT_) ≅ VSUP / 2

12

mV

Input Common-Mode Voltage

Range

Output Voltage Swing, High

Output Voltage Swing, Low

Short-Circuit Current

VCM

VOH

VOL

IOUT_ = 5mA

IOUT_ = -5mA

To VSUP / 2

Source

Sink

0

VSUP -

100

75

75

VSUP

V

mV

100

mV

mA

_______________________________________________________________________________________ 9

Share Link: