LTM4686BIVPBF datasheet(7/130 Pages) AD

7 / 130 page

LTM4686B

Rev. 0

For more information www.analog.com

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the specified internal

operating temperature range (Note 2). Specified as each individual output channel (Note 4). TA = 25°C, VIN = 5V, RUNn = 5V,

FREQUENCY_SWITCH = 1MHz, VOUT_COMMANDn = 1V and VOUT_UV_FAULT_RESPONSEn = TON_MAX_FAULT_RESPONSEn = 0x00

unless otherwise noted. All other command codes configured per factory-default EEPROM settings unless otherwise noted. Tested per

Circuit 1, unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX UNITS

Input Voltage (SVIN) Readback (READ_VIN)

NSVIN–RB

Input Voltage

Readback Resolution

and LSB Step Size

(Notes 10, 15)

15.625

Bits

SVIN–F/S

Input Voltage Full-

Scale Digitizable

Range

(Notes 11, 15)

38.91

SVIN–RB–ACC

Input Voltage

Readback Accuracy

READ_VIN, 4.5V ≤ SVIN ≤ 5.75V

Within ±2% of Reading

tCONVERT–SVIN–RB Input Voltage

Readback Update Rate

MFR_ADC_CONTROL = 0x00 (Notes 9, 15)

MFR_ADC_CONTROL = 0x01 (Notes 9, 15)

Channels0and1OutputCurrent(READ_IOUTn),DutyCycle(READ_DUTY_CYCLEn),andComputedInputCurrent(MFR_READ_IINn)Readback

NIO–RB

Output Current

Readback Resolution

and LSB Step Size

(Notes 10, 12)

15.6

Bits

IO–F/S, II–F/S

Output Current

Full-Scale Digitizable

Range and Input

Current Range of

Calculation

(Note 12)

±40

IO–RB–ACC

Output Current,

Readback Accuracy

READ_IOUTn, Channels 0 and 1, 0 ≤ IOUTn ≤ 10A,

Forced-Continuous Mode, MFR_PWM_MODEn[1:0] = 11b

Within 1A of Reading

IO–RB(10A)

Full Load Output

Current Readback

IOUTn = 10A (Note 12). See Histograms in Typical Performance

Characteristics

NII–RB

Computed Input

Current, Readback

Resolution and LSB

Step Size

(Notes 10, 12)

1.95

Bits

II–RB–ACC

Computed Input

Current, Readback

Accuracy, Neglecting

ISVIN

MFR_READ_IINn, Channels 0 and 1, 0 ≤ IOUTn ≤ 10A,

Forced Continuous Mode, MFR_PWM_MODEn[1:0] = 11b,

MFR_IIN_OFFSETn = 0mA

Within150mAofReading

tCONVERT–IO–RB

Output Current

Readback Update Rate

MFR_ADC_CONTROL = 0x00 (Notes 9, 15)

MFR_ADC_CONTROL = 0x0D (Notes 9, 15)

MFR_ADC_CONTROL = 0x06 or 0x0A (Notes 9, 15)

tCONVERT–II–RB

Computed Input

Current, Readback

Update Rate

MFR_ADC_CONTROL = 0x00 (Notes 9, 15)

NDUTY–RB

Resolution, Duty Cycle

Readback

(Notes 10, 15)

Bits

DRB–ACC

Duty Cycle TUE

READ_DUTY_CYCLEn, 16.3% Duty Cycle (Note 15)

±3

tCONVERT–DUTY–RB Duty Cycle Readback

Update Rate

MFR_ADC_CONTROL = 0x00 (Notes 9, 15)

LTM4686BIVPBF 数据表(PDF) 7 Page - Analog Devices

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