MAX8819CETI+ Maxim Integrated Products, MAX8819CETI+ Datasheet - Page 18

• Manufacturer Part Number: MAX8819CETI+
• Description: IC PMIC W/INT CHARGER 28TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: PMIC with Integrated Chargersr

Specifications of MAX8819CETI+

• Applications: Handheld/Mobile Devices
• Voltage - Supply: 4.1 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Output Voltage Range: 1 V to 4 V
• Input Voltage Range: 4.1 V to 5.5 V
• Input Current: 1.33 mA
• Power Dissipation: 2285.7 mW
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PMIC with Integrated Chargers and Smart
Power Selector in a 4mm x 4mm TQFN
where charge current starts tapering down. When
charge current decreases to 10% of the maximum fast-
charge current, the charger enters a 33min top-off state
and then charging stops. If the battery voltage subse-
quently drops 100mV below the battery regulation volt-
age, charging restarts and the timers reset.
The battery charge rate is set by several factors:
Figure 3. Li+/Li-Poly Charger State Diagram
18
______________________________________________________________________________________
INPUT SUSPENDED
DLIM[1:2] = 11
I
CHG
CHG = 1
= 0mA
I
CHGMAX
DC = VALID
= 2000 x
DLIM[1:2] ≠ 11
R
1.5V
CISET
I
CHG
IC SETS TIMER = 0
V
IC SETS TIMER = 0
< I
BAT
CHGMAX
< 2.82V
(V
BATREG
x 20%
CHARGER DISABLED
t
PREQUALIFICATION
TOPOFF
NO INPUT POWER
I
I
CHG
-100mV) ≤ V
CHG
V
DLIM[1:2] = 11
FAST-CHARGE
I
CHG
BAT
I
I
I
CHG
CHG
CHG
TOP-OFF
≤ I
CHG = 1
CHG = 0
≤ I
CHG = 1
CHG = 1
CHG = 1
CHG = 0
DONE
>
≤ I
= V
CHGMAX
CHGMAX
= 0mA
= 0mA
= 0mA
CHGMAX
BATREG
CEN = 1
IC SETS TIMER = 0
33min
BAT
I
IC SETS TIMER = 0
V
IC SETS TIMER = 0
CHG
/10
/10
BAT
≤ V
< I
> 3V,
BATREG
CHGMAX
• Battery voltage
• DC input current limit
• The charge-setting resistor, R
• The system load (I
• The die temperature
x 10% AND V
t > t
PREQUAL
DC = INVALID
IC SETS TIMER = 0
V
BAT
BAT
100mV)
< (V
CEN = 0
BATREG
t > t
ANY STATE
IC EXTENDS TIMER BY 2x
I
FSTCHG
CHG
AND V
CHG = 2Hz SQUAREWAVE
< I
BAT
CHGMAX
TIMER FAULT
SYS
I
CHG
(I
< V
I
CHG
CHGMAX
AND V
)
BATREG
= 0mA
IC SUSPENDS
x
< I
50%
CHGMAX
BAT
TIMER
x 20%) < I
I
CHG
<V
TIMER SUSPEND
TIMER EXTEND
BATREG
< (I
x
CISET
CHG = 0
20%
CHG = 0
CHGMAX
CHG
I
IC RESUMES TIMER
CHG
< (I
OR V
IC RESUMES TIMER
I
OR V
CHG
x 20%)
CHGMAX
< I
BAT
< I
BAT
CHGMAX
SET
= V
= V
x 50%)
x
BATREG
BATREG
23%
x
53%