MAX8568AETE+T Maxim Integrated Products, MAX8568AETE+T Datasheet - Page 5

• Manufacturer Part Number: MAX8568AETE+T
• Description: IC BATT MANAGE LITH 16-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8568AETE+T

• Function: Back-Up Management
• Battery Type: Lithium-Ion (Li-Ion); Nickel-Metal Hydride (NiMH)
• Voltage - Supply: 2.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 7, V
R5 = 250kΩ, T
(Circuit of Figure 7, V
Note 1: All units are 100% production tested at T
Note 2: All backup step-up converter specifications are with V
Note 3: Specifications to -40°C are guaranteed by design and not production tested.
LX Current Limit (ILIM)
n-Channel Switch Maximum On-Time
p-Channel Zero-Channel Crossing Current
LOW-DROPOUT REGULATOR
BKSU Input Voltage Range
LDO Output-Voltage Accuracy
12
10
8
6
4
2
0
0
V
IN
vs. BACKUP BATTERY VOLTAGE
= 3.9V
0.4
BACKUP BATTERY VOLTAGE (V)
NiMH CHARGE CURRENT
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
PARAMETER
FALLING
0.8
_______________________________________________________________________________________
IN
IN
= 3.6V, V
= V
1.2
INOK
RISING
BK
1.6
= 3.6V, V
Complete Backup-Management ICs
= 1.4V, V
2.0
BK
NI/LI
= 1.4V, V
for Lithium and NiMH Batteries
V
A
14
12
10
= V
8
6
4
2
0
BKSU
= +25°C. Limits over the operating range are guaranteed by design.
0
BKSU
vs. BACKUP BATTERY VOLTAGE
NI/LI
0.6
= 3.3V
LITHIUM CHARGE CURRENT
BACKUP BATTERY VOLTAGE (V)
= 3.3V, T
= V
1.2
V
V
IN
BK(LIMAX)
IN
= 3.9V
BKSU
CONDITIONS
= V
1.8
V
IN
A
INOK
= 3.4V
= 5V, V
= 3.3V, V
= +25°C, unless otherwise noted.)
2.4
Typical Operating Characteristics
BK(LIMAX)
= 0V, unless otherwise noted.
3.0
BKV
3.6
MAX8568A
MAX8568B
= 4.2V
A
= GND = PGND = 0V, V
= +25°C.) (Note 3)
4.2
4.180
4.179
4.178
4.177
4.176
4.175
4.174
4.173
4.172
4.171
4.170
2.375
-40
1.71
MIN
400
3.5
2.7
5
Li-ION TERMINATION VOLTAGE
-15
vs. TEMPERATURE
TEMPERATURE (°C)
STRTV
10
= V
2.625
MAX
1.89
600
6.5
5.0
35
35
TERMV
60
UNITS
= 1.2V,
mA
mA
µs
V
V
85
5