MAX8725ETI+ Maxim Integrated Products, MAX8725ETI+ Datasheet - Page 4

• Manufacturer Part Number: MAX8725ETI+
• Description: IC CHARGER BATTERY 28-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8725ETI+

• Function: Charge Management
• Battery Type: Multi-Chemistry
• Voltage - Supply: 8 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-WFQFN Exposed Pad
• Product: Charge Management
• Operating Supply Voltage: 8 V to 28 V
• Supply Current: 2.7 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: No
• Mounting Style: SMD/SMT
• Temperature Monitoring: No
• Uvlo Start Threshold: 9.18 V
• Uvlo Stop Threshold: 9.42 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Multichemistry Battery Chargers with Automatic
System Power Selector
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
REF, GND = PGND = 0, PKPRES = GND, LDO = DLOV, T
4
SUPPLY AND LINEAR REGULATOR
DCIN Input Voltage Range
DCIN Undervoltage-Lockout Trip
Point
DCIN Quiescent Current
BATT Input Current
LDO Output Voltage
LDO Load Regulation
LDO Undervoltage-Lockout Trip
Point
REFERENCE
REF Output Voltage
REF Undervoltage-Lockout Trip
Point
TRIP POINTS
BATT POWER_FAIL Threshold
BATT POWER_FAIL Threshold
Hysteresis
ACIN Threshold
ACIN Threshold Hysteresis
ACIN Input Bias Current
SWITCHING REGULATOR
DHI Off-Time
DHI Minimum Off-Time
DLOV Supply Current
Sense Voltage for Minimum
Discontinuous Mode Ripple
Current
Cycle-by-Cycle Current-Limit
Sense Voltage
Sense Voltage for Battery
Undervoltage Charge Current
Battery Undervoltage Threshold
DHIV Output Voltage
_______________________________________________________________________________________
PARAMETER
DCIN
= V
CSSP
= V
SYMBOL
CSSN
V
I
I
I
DLOV
DCIN
BATT
DCIN
Ref
= 18V, V
DCIN falling
DCIN rising
8.0V < V
V
V
V
8.0V < V
0 < I
V
0 < I
REF falling
V
ACIN rising
V
V
V
DLO low
MAX1909 only, BATT = 3.0V per cell
MAX1909 only, MODE = float (3 cell),
V
MAX1909 only, MODE = LDO (4 cell),
V
With respect to SRC
BATT
BATT
BATT
DCIN
DCIN
ACIN
B AT T
B AT T
BATT
BATT
BATT
LDO
REF
A
= 19V, V
= 16.8V, V
= 2V to 19V, V
= 8.0V
- V
= 2.048V
= 16.0V , V
= 16.0V , V
rising
rising
= V
= 0°C to +85°C, unless otherwise noted. Typical values are at T
DCIN
DCIN
< 500µA
< 10mA
BATT
CSIP
< 28V
< 28V, no load
, V DCIN falling
CONDITIONS
DCIN
= V
D C I N
D C I N
DCIN
CSIN
= 0V, or ICTL = 0V
DCIN
= 19V , V
= 17V , V
= 19V, ICTL = 0V
= 12V, V
> V
BATT
M OD E
M OD E
VCTL
+ 0.3V
= 3.6V
= 3.6V
= V
ICTL
= 1.8V, MODE = float, ACIN = 0, CLS =
4.2023
12.235
2.007
5.25
3.20
9.18
MIN
100
360
260
-4.5
8.0
50
10
-1
7
3
4.2235
2.048
TYP
-5.0
200
100
200
400
300
7.4
7.5
2.7
0.1
0.1
5.4
3.1
7.5
4.5
80
20
97
4
5
4.2447
12.565
2.089
MAX
7.85
5.55
5.15
9.42
-5.5
500
115
150
300
440
350
3.9
+1
28
30
10
6
1
1
6
A
= +25°C.)
UNITS
mA
mV
mV
mV
mV
mV
mV
mV
µA
µA
µA
ns
ns
V
V
V
V
V
V
V
V
V