MAX8819A MAXIM [Maxim Integrated Products], MAX8819A Datasheet - Page 6

• Manufacturer Part Number: MAX8819A
• Description: PMIC with Integrated Chargers and Smart Power Selector in a 4mm x 4mm TQFN
• Manufacturer: MAXIM [Maxim Integrated Products]

PMIC with Integrated Chargers and Smart
Power Selector in a 4mm x 4mm TQFN
ELECTRICAL CHARACTERISTICS (continued)
(DC, LX_ unconnected; V
PV13 = PV2 = SYS, T
6
Maximum Output Current
Short-Circuit Current
Short-Circuit Detection Threshold
Short-Circuit Foldback Frequency
FB3 Voltage
Output Voltage Range
FB3 Leakage Current
Load Regulation
Line Regulation
p-Channel Current-Limit
Threshold
Skip-Mode Transition Current
n-Channel Zero-Crossing
Threshold
p-Channel On-Resistance
n-Channel On-Resistance
Maximum Duty Cycle
Minimum Duty Cycle
PWM Frequency
Internal Discharge Resistance in
Shutdown
REG4–STEP-UP CONVERTER
Input Voltage
Output Voltage Range
FB4 Regulation Voltage
FB4 Leakage
Switching Frequency
Minimum Duty Cycle
Maximum Duty Cycle
OVP4 Overvoltage Detection
OVP4 Input Current
OVP4 Leakage Current
n-Channel On-Resistance
n-Channel Off-Leakage Current
n-Channel Current Limit
_______________________________________________________________________________________
PARAMETER
A
= -40°C to +85°C, capacitors as shown in Figure 1, R
EP
= V
GND
= 0V, V
SYMBOL
V
V
V
f
OUT4
OSC
OVP
FB4
BAT
= 4V, DLIM[1:2] = 00, EN123 = EN4 = low, V
L = 4.7µH,
R
(Note 6)
L = 4.7µH, R
(Note 7)
V
I
(Note 9)
MAX8819A/MAX8819B
MAX8819C
(Note 8)
V
V
EN123 = low, resistance from LX3 to PG3
Power supplied from SYS (see Figure 1)
No dimming
REG4 disabled (EN4 = low)
OVP4 = SYS, EN4 = high
REG4 disabled (EN4 = low),
OVP4 = SYS
V
V
OUT3
FB3
PV13
PV13
SYS
LX4
LSR
= 28V
= 1.01V
= 4.0V, I
= 0.13Ω
= 100mA to 300mA
= 4.0V, I
= 4.0V, I
LSR
LX4
LX3
LX3
CONDITIONS
= 0.13Ω
= 200mA
= 180mA
= 180mA
MAX8819A/MAX8819B
MAX8819C
T
T
A
A
= +25°C
= +85°C
CISET
= 3kΩ, unless otherwise noted.) (Note 3)
FB1
-0.050
0.997
0.512
0.565
V
= V
MIN
300
500
100
475
555
-50
1.8
2.4
0.9
90
24
SYS
-1
-1
1
FB2
= V
+0.005
+0.001
+0.001
f
OSC
0.550
0.600
TYP
1.01
12.5
600
230
290
120
500
395
695
-50
1.3
2.0
1.0
80
10
94
25
-5
FB3
1
1
5
4
/3
= 1.1V, V
+0.050
1.028
0.595
0.700
MAX
V
+50
525
950
2.2
5.5
1.1
+1
+1
SYS
24
26
FB4
UNITS
= 0.6V,
MHz
MHz
%/D
mΩ
mΩ
mΩ
mA
mA
mV
mA
mA
mV
mA
kΩ
Hz
nA
µA
µA
µA
µA
%
%
%
%
%
V
V
A
V
V
V