MAX8814 MAXIM [Maxim Integrated Products], MAX8814 Datasheet - Page 3

• Manufacturer Part Number: MAX8814
• Description: 28V Linear Li+ Battery Charger with Smart Autoboot Assistant
• Manufacturer: MAXIM [Maxim Integrated Products]

ELECTRICAL CHARACTERISTICS (continued)
(V
wise noted. Typical values are at T
(V
wise noted. Typical values are at T
Note 1: Specifications are 100% production tested at T
Regulator Dropout Voltage
(V
EN Logic-Input Low Voltage
EN Logic-Input High Voltage
EN and ABI Internal Pulldown
Resistance
ABI Logic-Input Low Voltage
ABI Logic-Input High Voltage
ABO Output Low Voltage
ABO Output High Voltage
POK Output Low Voltage
POK Output High Leakage
Current
IN
IN
IN
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
= 5V, V
0
= 5V, V
- V
0
BATT
design and characterization.
PARAMETER
4
BATT
BATT
)
SUPPLY CURRENT
8
INPUT VOLTAGE (V)
= 4V, R
= 4V, R
vs. VOLTAGE
12
_______________________________________________________________________________________
POK
16
POK
= 1MΩ to BATT, EN = 0V, R
20
= 1MΩ to BATT, EN = 0V, R
28V Linear Li+ Battery Charger with
EN = 0V
A
24
A
= +25°C.) (Note 1)
= +25°C.)
V
4.25V < V
4.25V < V
V
V
I
I
I
V
ABO (SINK)
ABO (SOURCE)
POK
BATT
IN
IN
POK
28
= 0V
= 0V
= 5mA
= 5.5V
= 4.1V, I
IN
IN
= 1mA
800
700
600
500
400
300
200
100
< 6.5V
< 6.5V
0
= 1mA
BATT
0
DISABLED MODE SUPPLY CURRENT
A
= 425mA
ISET
5
= +25°C. Limits over the operating temperature range are guaranteed by
CONDITIONS
ISET
vs. INPUT VOLTAGE
Smart Autoboot Assistant
= 2.8kΩ to GND, C
INPUT VOLTAGE (V)
10
= 2.8kΩ to GND, C
15
T
T
A
A
Typical Operating Characteristics
= +25°C
= +85°C
20
V
EN
25
= 5V
BATT
BATT
30
= 2.2µF, T
= 2.2µF, T
1000
900
800
700
600
500
400
300
200
100
0
V
A
0
BATT
MIN
0.4V
100
1.3
1.3
= -40°C to +85°C, unless other-
A
0.5
= -40°C to +85°C, unless other-
-
1.0 1.5 2.0
vs. BATTERY VOLTAGE
CHARGE CURRENT
BATTERY VOLTAGE (V)
0.001
0.002
TYP
240
200
2.5 3.0 3.5 4.0 4.5
MAX
500
400
0.4
0.4
0.4
0.4
1
UNITS
mV
kΩ
µA
V
V
V
V
V
V
V
3