IR36021 datasheet(11/41 Pages) IRF

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IR36021

DIGITAL POL BUCK CONTROLLER with I2C AND PMBus

Interface

February 27, 2013 | Rev 3.5

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

PWM Frequency Range

200‐2000

kHz

PWM frequency step size

0.83‐83

kHz

PWM resolution

160

NTC Temperature Sense

TSEN1

Output Current

For TSEN = 0 to 1.2V

100

104

µA

Accuracy

at 100°C (ideal NTC)

104

°C

Digital Inputs – Low Vth

Type 1

EN, VR_HOT

(during PoR)

Input High Voltage

0.7

‐

Input Low Voltage

‐

0.35

Input Leakage Current

Vpad = 0 to 2V ‐

‐

±5

µA

Digital inputs ‐ LVTTL

SM_DIO,

SM_CLK,

ADDR_PROT

Input voltage high

2.1

Input voltage low

0.8

Input leakage

Vpad=0 to 3.6V

±1

µA

Remote voltage sense inputs

VSEN, VRTN,

VSEN_L2,

VRTN_L2

VSENx Input current

Vout = 0.5V to 1.5V

‐250 to +250

VRTNx Input current

‐500

Differential Input voltage

range

VRTN= ±100mV

0 to 2.6

VRTN Input CM voltage

‐100 to 100

Remote current sense inputs

ISEN/IRTNx

Voltage range

‐0.1 to 2.7

Analog Address/Level Inputs

ADDR_PROT

16 levels

Output Current

Vpad = 0 to 1.2V

100

104

µA

Open‐Drain outputs ‐ 4mA

drive

PGood1,

PGood2,

SM_DIO,

SM_ALERT

Output low voltage

4mA

0.3

Output leakage

Vpad=0 to 3.6V

±5

µA

Open‐Drain outputs ‐ 20mA

drive

VRHOT_ICRIT#

Output low voltage

I=20mA

0.26

On resistance

I=20mA

13 Ω

Tri‐state leakage

Ileak

Vpad=0 to 3.6V

±5

µA

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