Datasheet

ADP5520
Rev. A | Page 3 of 40
SPECIFICATIONS
VBAT = 2.7 V to 4.8 V, T
J
= −40°C to +125°C, unless otherwise noted.
1
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
SUPPLY VOLTAGE
VBAT Input Voltage Range V
BAT
2.7 5.5 V
VDDIO Input Voltage Range V
VDDIO
1.7 3.3
2
V
Undervoltage Lockout Threshold UVLO
VBAT
VBAT falling 1.7 2.1 V
UVLO
VBAT
VBAT rising 2.4 2.7 V
UVLO
VDDIO
VDDIO falling 1.1 1.3 V
UVLO
VDDIO
VDDIO rising 1.4 1.62 V
SW leakage SW
LEAKAGE
0.1 1 A
SUPPLY CURRENT
Shutdown Current
3
I
SD
VDDIO = 0 V 0.1 1 A
Standby Current
4
I
STNBY
1.7 V ≤ VDDIO ≤ 3.3 V
2
,
nSTNBY = 0
25 45 A
BACKLIGHT LED DRIVER (SW, BST)
Current Limit (Peak Inductor Current) 450 600 750 mA
Switch On Resistance 100 200 400 mΩ
Overvoltage Limit 24.5 27 29.5 V
Boost Startup Time 1 ms
BACKLIGHT LED CURRENT SINK (BL_SNK)
Full-Scale Backlight Current 26 30 32 mA
Backlight Current Ramp Rate Fade timers disabled 0.3 mA/ms
AMBIENT LIGHT SENSOR (CMP_IN)
Full-Scale Current BL
FULLSCALE
0.7 1 1.2 mA
INPUT LOGIC LEVELS (SCL, SDA, nRST, C0, C1, C2, C3, R0, R1, R2, R3)
5
Logic Low Input Voltage V
IL
1.7 V ≤ VDDIO ≤ 3.3 V
2
0.3 × VDDIO V
Logic High Input Voltage V
IH
1.7 V ≤ VDDIO ≤ 3.3 V
2
0.7 × VDDIO V
Input Leakage Current V
I-LEAKAGE
1.7 V ≤ VDDIO ≤ 3.3 V
2
0.1 1 µA
INPUT LOGIC DEBOUNCE (nRST, C0, C1, C2, C3, R0, R1, R2, R3)
6
V
IL-DBNC
50 75 100 µs
PUSH-PULL OUTPUT LOGIC LEVELS (C0, C1, C2, C3, R0, R1, R2, R3)
7
Logic Low Output Voltage V
OL
I
SINK
= 1 mA 0.4 V
Logic High Output Voltage V
OH
I
SOURCE
= 1 mA VDDIO − 0.2 V
OPEN-DRAIN OUTPUT LOGIC LEVELS (nINT, SDA)
Logic Low Output Voltage V
OL
I
SINK
= 1 mA 0.4 V
Logic High Leakage Current V
OH-LEAKAGE
1.7 V ≤ VDDIO ≤ 3.3 V
2
0.1 1 µA
AUX LED CURRENT SINK (ILED, C3, R3)
8
Leakage LED
LEAKAGE
Sink disabled 0.1 1 µA
Full-scale Current Sink LED
FULLSCALE
Applied pin voltage = 1 V 10.5 14 16.5 mA
GPIO PULL-UP RESISTANCE (C0, C1, C2, C3, R0, R1, R2, R3)
9
50 65 80 kΩ
THERMAL SHUTDOWN
Thermal Shutdown Threshold TS T
J
rising 150 °C
Thermal Shutdown Hysteresis TS
HYS
T
J
falling 10 °C
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). Typical values are at T
A
= 25⁰C, VBAT = 3.6 V.
2
3.3 V or VBAT, whichever is smaller.
3
Internal LDO powered down, digital blocks inactive, I
2
C inactive, boost inactive.
4
Internal LDO powered up, digital blocks active, I
2
C 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.