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MAX8819CETI+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P29
MAX8819A/MAX8819B/MAX8819C
PMIC with Integrated Chargers and Smart
Power Selector in a 4mm x 4mm TQFN
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(DC, LX_ unconnected; V
EP
= V
GND
= 0V, V
BAT
= 4V, DLIM[1:2] = 00, EN123 = EN4 = low, V
FB1
= V
FB2
= V
FB3
= 1.1V, V
FB4
= 0.6V,
PV13 = PV2 = SYS, T
A
= -40°C to +85°C, capacitors as shown in Figure 1, R
CISET
= 3kΩ, unless otherwise noted.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Slew rate 333 mA/ms
Time from 0 to 500mA 1.5
Time from 0 to 100mA 0.3
Charger Soft-Start Time t
SS_CHG
Time from 100mA to 500mA 1.2
ms
Timer Accuracy +15 %
Timer Suspend Threshold
CISET voltage when the fast-charge timer
suspends; 300mV translates to 20% of the
maximum fast-charge current limit
250 300 350 mV
Timer Extend Threshold
CISET voltage when the fast-charge timer
extends; 750mV translates to 50% of the
maximum fast-charge current limit
700 750 800 mV
Prequalification Time t
PREQUAL
33 min
Fast-Charge Time t
FSTCHG
660 min
Top-Off Time t
TOPOFF
33 min
POWER SEQUENCING (Figures 6 and 7)
REG1, REG2, REG3 Soft-Start
Time
t
SS1
, t
SS2
,
t
SS3
2.6 ms
REG4 Soft-Start Time t
SS4
C
COMP4
= 0.022μF to GND 5 ms
REGULATOR THERMAL SHUTDOWN
Thermal Shutdown Temperature T
J
rising +165 °C
Thermal Shutdown Hysteresis 15 °C
REG1–SYNCHRONOUS STEP-DOWN CONVERTER
Input Voltage PV13 supplied from SYS V
SYS
V
MAX8819A/MAX8819B 400
Maximum Output Current
L = 4.7μH,
R
LSR
= 0.13Ω
(Note 6)
MAX8819C 550
mA
Short-Circuit Current L = 4.7μH, R
LSR
= 0.13Ω 600 mA
Short-Circuit Detection Threshold 230 mV
Short-Circuit Foldback Frequency f
OSC
/3 Hz
FB1 Voltage (Note 7) 0.997 1.01 1.028 V
Output Voltage Range 1V
SYS
V
T
A
= +25°C -50 -5 +50
FB1 Leakage Current V
FB1
= 1.01V
T
A
= +85°C -10
nA
Load Regulation I
OUT1
= 100mA to 300mA 1 %
Line Regulation (Note 9) 1 %/D
p-Channel On-Resistance V
PV13
= 4.0V, I
LX1
= 180mA 190 mΩ
n-Channel On-Resistance V
PV13
= 4.0V, I
LX1
= 180mA 250 mΩ
MAX8819A/MAX8819B 0.565 0.600 0.640
p-Channel Current-Limit
Threshold
MAX8819C 0.615 0.650 0.750
A
MAX8819A/MAX8819B/MAX8819C
ELECTRICAL CHARACTERISTICS (continued)
(DC, LX_ unconnected; V
EP
= V
GND
= 0V, V
BAT
= 4V, DLIM[1:2] = 00, EN123 = EN4 = low, V
FB1
= V
FB2
= V
FB3
= 1.1V, V
FB4
= 0.6V,
PV13 = PV2 = SYS, T
A
= -40°C to +85°C, capacitors as shown in Figure 1, R
CISET
= 3kΩ, unless otherwise noted.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Skip-Mode Transition Current (Note 8) 80 mA
n-Channel Zero-Crossing
Threshold
10 mA
Maximum Duty Cycle 100 %
Minimum Duty Cycle 12.5 %
PWM Frequency f
OSC
1.8 2.0 2.2 MHz
Internal Discharge Resistance in
Shutdown
EN123 = low, resistance from LX1 to PG1 1.0 kΩ
REG2–SYNCHRONOUS STEP-DOWN CONVERTER
Input Voltage PV2 supplied from SYS V
SYS
V
MAX8819A/MAX8819B 300
Maximum Output Current
L = 4.7μH,
R
LSR
= 0.13Ω
(Note 6)
MAX8819C 500
mA
Short-Circuit Current L = 4.7μH, R
LSR
= 0.13Ω 600 mA
Short-Circuit Detection Threshold 230 mV
Short-Circuit Foldback Frequency f
OSC
/3 Hz
FB2 Voltage (Note 7) 0.997 1.012 1.028 V
Output Voltage Range 1V
SYS
V
T
A
= +25°C -50 -5 +50
FB2 Leakage Current V
FB2
= 1.01V
T
A
= +85°C -50
nA
Load Regulation I
OUT2
= 100mA to 300mA 1 %
Line Regulation (Note 9) 1 %/D
p-Channel On-Resistance V
PV2
= 4.0V, I
LX2
= 180mA 290 mΩ
n-Channel On-Resistance V
PV2
= 4.0V, I
LX2
= 180mA 200 mΩ
MAX8819A/MAX8819B 0.512 0.550 0.595
p-Channel Current-Limit
Threshold
MAX8819C 0.565 0.600 0.700
A
Skip-Mode Transition Current (Note 8) 80 mA
n-Channel Zero-Crossing
Threshold
10 mA
Maximum Duty Cycle 100 %
Minimum Duty Cycle 12.5 %
PWM Frequency f
OSC
1.8 2.0 2.2 MHz
Internal Discharge Resistance in
Shutdown
EN123 = low, resistance from LX2 to PG2 1.0 kΩ
REG2 Disable ΔI
SYS
V
PV2
= 0V, REG2 disabled (Note 10) -25 μA
REG3–SYNCHRONOUS STEP-DOWN CONVERTER
Input Voltage PV13 supplied from SYS V
SYS
V
PMIC with Integrated Chargers and Smart
Power Selector in a 4mm x 4mm TQFN
_______________________________________________________________________________________ 5
MAX8819A/MAX8819B/MAX8819C
PMIC with Integrated Chargers and Smart
Power Selector in a 4mm x 4mm TQFN
6 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(DC, LX_ unconnected; V
EP
= V
GND
= 0V, V
BAT
= 4V, DLIM[1:2] = 00, EN123 = EN4 = low, V
FB1
= V
FB2
= V
FB3
= 1.1V, V
FB4
= 0.6V,
PV13 = PV2 = SYS, T
A
= -40°C to +85°C, capacitors as shown in Figure 1, R
CISET
= 3kΩ, unless otherwise noted.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX8819A/MAX8819B 300
Maximum Output Current
L = 4.7μH,
R
LSR
= 0.13Ω
(Note 6)
MAX8819C 500
mA
Short-Circuit Current L = 4.7μH, R
LSR
= 0.13Ω 600 mA
Short-Circuit Detection Threshold 230 mV
Short-Circuit Foldback Frequency f
OSC
/3 Hz
FB3 Voltage (Note 7) 0.997 1.01 1.028 V
Output Voltage Range 1V
SYS
V
T
A
= +25°C -50 -5 +50
FB3 Leakage Current V
FB3
= 1.01V
T
A
= +85°C -50
nA
Load Regulation I
OUT3
= 100mA to 300mA 1.3 %
Line Regulation (Note 9) 1 %/D
MAX8819A/MAX8819B 0.512 0.550 0.595
p-Channel Current-Limit
Threshold
MAX8819C 0.565 0.600 0.700
A
Skip-Mode Transition Current (Note 8) 80 mA
n-Channel Zero-Crossing
Threshold
10 mA
p-Channel On-Resistance V
PV13
= 4.0V, I
LX3
= 180mA 290 mΩ
n-Channel On-Resistance V
PV13
= 4.0V, I
LX3
= 180mA 120 mΩ
Maximum Duty Cycle 100 %
Minimum Duty Cycle 12.5 %
PWM Frequency f
OSC
1.8 2.0 2.2 MHz
Internal Discharge Resistance in
Shutdown
EN123 = low, resistance from LX3 to PG3 1.0 kΩ
REG4–STEP-UP CONVERTER
Input Voltage Power supplied from SYS (see Figure 1) 2.4 5.5 V
Output Voltage Range V
OUT4
V
SYS
24 V
FB4 Regulation Voltage V
FB4
No dimming 475 500 525 mV
FB4 Leakage REG4 disabled (EN4 = low) -0.050 +0.005 +0.050 μA
Switching Frequency 0.9 1 1.1 MHz
Minimum Duty Cycle 5%
Maximum Duty Cycle 90 94 %
OVP4 Overvoltage Detection
V
OVP
24 25 26 V
OVP4 Input Current OVP4 = SYS, EN4 = high 4 μA
OVP4 Leakage Current
REG4 disabled (EN4 = low),
OVP4 = SYS
-1 +0.001 +1 μA
n-Channel On-Resistance V
SYS
= 4.0V, I
LX4
= 200mA 395 mΩ
n-Channel Off-Leakage Current V
LX4
= 28V -1 +0.001 +1 μA
n-Channel Current Limit 555 695 950 mA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P29

MAX8819CETI+

Mfr. #:
Buy MAX8819CETI+
Manufacturer:
Maxim Integrated
Description:
Power Management Specialized - PMIC PMIC w/Charger & Smart Power Selector
Lifecycle:
New from this manufacturer.
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