ADP5050ACPZ-R7 datasheet(6/60 Pages) AD

6 / 60 page

ADP5050

Data Sheet

Rev. 0 | Page 6 of 60

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

LOW INPUT VOLTAGE DETECTION

Low Input Voltage Threshold

VLVIN-TH

4.07

4.236

4.39

LVIN_TH[3:0] = 0000

10.05

10.25

10.4

LVIN_TH[3:0] = 1100

Low Input Voltage Threshold Range

4.2

11.2

I2C programmable (4-bit value)

THERMAL SHUTDOWN

Thermal Shutdown Threshold

TSHDN

150

°C

Thermal Shutdown Hysteresis

THYS

°C

THERMAL OVERHEAT WARNING

Thermal Overheat Threshold

THOT

115

°C

TEMP_TH[1:0] = 10

Overheat Threshold Range

105

125

°C

I2C programmable (2-bit value)

Thermal Overheat Hysteresis

THOT(HYS)

°C

BUCK REGULATOR SPECIFICATIONS

VIN = 12 V, VVREG = 5.1 V, fSW = 600 kHz for all channels, TJ = −40°C to +125°C for minimum and maximum specifications, and TA = 25°C

for typical specifications, unless otherwise noted.

Table 2.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

CHANNEL 1 SYNC BUCK REGULATOR

FB1 Pin

Fixed Output Options

VOUT1

0.85

1.60

Fuse trim or I2C interface

(5-bit value)

Adjustable Feedback Voltage

VFB1

0.800

Feedback Voltage Accuracy

VFB1(DEFAULT)

−0.55

+0.55

TJ = 25°C

−1.25

+1.0

0°C ≤ TJ ≤ 85°C

−1.5

+1.5

−40°C ≤ TJ ≤ +125°C

Feedback Bias Current

IFB1

0.1

µA

Adjustable voltage

SW1 Pin

High-Side Power FET

On Resistance

RDSON(1H)

100

mΩ

Pin-to-pin measurement

Current-Limit Threshold

ITH(ILIM1)

3.50

4.4

5.28

RILIM1 = floating

1.91

2.63

3.08

RILIM1 = 47 kΩ

4.95

6.44

7.48

RILIM1 = 22 kΩ

Minimum On Time

tMIN_ON1

117

155

fSW = 250 kHz to 1.4 MHz

Minimum Off Time

tMIN_OFF1

1/9 × tSW

fSW = 250 kHz to 1.4 MHz

Low-Side Driver, DL1 Pin

Rising Time

tRISING1

CISS = 1.2 nF

Falling Time

tFALLING1

3.4

CISS = 1.2 nF

Sourcing Resistor

tSOURCING1

Ω

Sinking Resistor

tSINKING1

0.95

Ω

Error Amplifier (EA), COMP1 Pin

EA Transconductance

gm1

310

470

620

µS

Soft Start

Soft Start Time

tSS1

2.0

SS12 connected to VREG

Programmable Soft Start Range

2.0

8.0

Hiccup Time

tHICCUP1

7 × tSS1

COUT Discharge Switch On Resistance

RDIS1

250

Ω

ADP5050ACPZ-R7 数据表(PDF) 6 Page - Analog Devices

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