PT8A2803 Datasheet, PDF (5/8 Pages) Pericom Semiconductor Corporation – 500mA Li-ion/Polymer Battery Charger

PT8A2803
500mA Li-ion/Polymer Battery Charger
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Maximum Ratings
StorageTemperature........................................................................................................................ -65oCto +150oC
Supply Voltage to Ground Potential (V_IN PT8A2803)........................................................... -0.3V to+7.0V
SupplyVoltage to Ground Potential (IMIN/IREF/BAT/ CHG / EN / PPR )............... 0.3Vto+7.0V
Thermal Resistance (Typical for DFN Package) .................................................. θJA (°C/W)=59,
θJC (°C/W)=4.5
Recommended Operating Conditions
Note:
Stresses greater than those listed under
MAXIMUM RATINGS may cause
permanent damage to the device. This is a
stress rating only and functional operation
of the device at these or any other condi-
tions above those indicated in the
operational sec-tions of this specification is
not implied. Exposureto absolute maximum
rating conditions for extended periods may
affect reliability.
Sym
Parameter
Min
Typ
Max
Unit
VIN
Operating Voltage
4.3
-
5.5
V
Programmable Current
-
50
-
500
mA
T_A
Operating temperature
-30
-
+85
°C
Electrical Specifications
Typical values are at V_IN=5V and T_A =25°C. All maximum and minimum values are at T_A = -30°C to +85°C, unless otherwise
noted.
Parameter
Sym
Conditions
Min Typ Max Units
POWER-ON RESET
Rising POR Threshold
Falling POR Threshold
VIN-VBAT OFFSET VOLTAGE
V_POR
V_POR
V_BAT=3.0V, use PPR to indicate the ^3.3
output
3.1
3.9 4.3 V
3.6 4.15 V
Rising Edge
Falling Edge
STANDBY CURRENT
V_OS
V_BAT=4.0V, use CHG pin to indicate the -
90 150 mV
V_OS
comparator output
10 50 - mV
BAT pin sink current
DC Supply Current
DC Supply Current
VOLTAGE REGULATION
I_STBY
I_DC
I_DC
Charger disabled or the input is floating
Charger disabled
Charger enabled
-
1
- µA
- 300 400 µA
- 500 700 µA
Output voltage
Power FET “ON” Resistance
V_CH
R_DS(ON)
4.3V < V_IN<5.5V Charge current=20mA 4.158 4.20 4.242 V
V_BAT=3.8V, charge current=0.5A, R_IREF
=8kΩ
-
0.6 -
Ω
CHARGE CURRENT
Constant Charge Current
I_CHG
Precharge Charge Current
I_PRE
End of Charge Current
I_MIN
EOC Rising Threshold
I_RECHG
PRECHARGE CHARGE THRESHOLD
R_IREF=29.4kΩ, V_BAT = 2.8–4.0V
R_IREF=29.4kΩ, V_BAT = 2.4V
R_IMIN=137kΩ
R_IREF =29.4kΩ
135 150 165 mA
18 25 32 mA
20 30 40 mA
90 100 130 mA
Precharge Threshold Voltage
V_PRE
-
Precharge Voltage Hysteresis
V_PREHYS
-
INTERNAL TEMPERATURE MONITORING
2.45 2.55 2.65 V
40 100 150 mV
Thermal regulation threshold (Note) T_FOLD
-
LOGIC INPUT AND OUTPUTS
100 115 130 °C
EN Pin Logic Input High
V_ENH
-
1.3 -
-V
EN Pin Logic Input Low
V_ENL
-
-
- 0.5 V
EN Pin Internal Pull Down Resistance ^REN
-
100 200 400 kΩ
CHG Pin Sink Current When LOW
I_CHGOL
CHG Pin Leakage Current When HIGH ICHGOH
V_CHG=1V
V_CHG=5.5V
10 20
-
-
- mA
1 µA
PPR Pin Sink Current When LOW
I_PPROL
V_PPR=1V
10 20 - mA
PPR Pin Leakage Current When HIGH ^IPPROH
V_PPR=5.5V
Note: This parameter is guaranteed by design, not tested.
-
-
1 µA
12-03-0002
PT0324-1
03/06/12
5