ADP5520 datasheet(3/40 Pages) AD

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ADP5520

Rev. 0 | Page 3 of 40

SPECIFICATIONS

VBAT = 2.7 V to 4.8 V, TJ = −40°C to +125°C, unless otherwise noted.1

Table 1.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

SUPPLY VOLTAGE

VBAT Input Voltage Range

VBAT

2.7

5.5

VDDIO Input Voltage Range

VVDDIO

1.8

3.32

Undervoltage Lockout Threshold

UVLOVBAT

VBAT falling

1.7

2.1

UVLOVBAT

VBAT rising

2.4

2.7

UVLOVDDIO

VDDIO falling

1.1

1.3

UVLOVDDIO

VDDIO rising

1.4

SW leakage

SWLEAKAGE

0.1

μA

SUPPLY CURRENT

Shutdown Current3

ISD

VDDIO = 0 V

0.1

μA

Standby Current4

ISTNBY

1.8 V ≤ VDDIO ≤ 3.3 V2,

nSTNBY = 0

μA

BACKLIGHT LED DRIVER (SW, BST)

Current Limit (Peak Inductor Current)

450

600

750

Switch On Resistance

100

200

400

mΩ

Overvoltage Limit

24.5

29.5

Boost Startup Time

BACKLIGHT LED CURRENT SINK (BL_SNK)

Full-Scale Backlight Current

Backlight Current Ramp Rate

Fade timers disabled

0.3

mA/ms

AMBIENT LIGHT SENSOR (CMP_IN)

Full-Scale Current

BLFULLSCALE

0.7

1.2

INPUT LOGIC LEVELS (SCL, SDA, nRST, C0, C1, C2, C3, R0, R1, R2, R3)5

Logic Low Input Voltage

VIL

1.8 V ≤ VDDIO ≤ 3.3 V2

0.3 × VDDIO

Logic High Input Voltage

VIH

1.8 V ≤ VDDIO ≤ 3.3 V2

0.7 × VDDIO

Input Leakage Current

VI-LEAKAGE

1.8 V ≤ VDDIO ≤ 3.3 V2

0.1

μA

INPUT LOGIC DEBOUNCE (nRST, C0, C1, C2, C3, R0, R1, R2, R3)6

VIL-DBNC

100

μs

PUSH-PULL OUTPUT LOGIC LEVELS (C0, C1, C2, C3, R0, R1, R2, R3)7

Logic Low Output Voltage

VOL

ISINK = 1 mA

0.4

Logic High Output Voltage

VOH

ISOURCE = 1 mA

VDDIO − 0.2

OPEN-DRAIN OUTPUT LOGIC LEVELS (nINT, SDA)

Logic Low Output Voltage

VOL

ISINK = 1 mA

0.4

Logic High Leakage Current

VOH-LEAKAGE

1.8 V ≤ VDDIO ≤ 3.3 V2

0.1

μA

AUX LED CURRENT SINK (ILED, C3, R3)8

Leakage

LEDLEAKAGE

Sink disabled

0.1

μA

Full-scale Current Sink

LEDFULLSCALE

Applied pin voltage = 1 V

10.5

16.5

GPIO PULL-UP RESISTANCE (C0, C1, C2, C3, R0, R1, R2, R3)9

kΩ

THERMAL SHUTDOWN

Thermal Shutdown Threshold

TJ rising

150

°C

Thermal Shutdown Hysteresis

TSHYS

TJ falling

°C

1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). Typical values are at TA = 25⁰C, VBAT = 3.6 V.

2 3.3 V or VBAT, whichever is smaller.

3 Internal LDO powered down, digital blocks inactive, I2C inactive, boost inactive.

4 Internal LDO powered up, digital blocks active, I2C active, boost inactive.

5 C0, C1, C2, C3, R0, R1, R2, and R3 are configured as digital inputs.

6 C0, C1, C2, C3, R0, R1, R2, and R3 are configured as digital inputs, with debounce enabled.

7 C0, C1, C2, C3, R0, R1, R2, and R3 are configured as digital outputs.

8 C3 and R3 are configured as digital inputs with pull-up.

9 C0, C1, C2, C3, R0, R1, R2, and R3 are configured as digital inputs with pull-up.

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