RT9502 Datasheet, PDF (5/13 Pages) Richtek Technology Corporation – Linear Single Cell Li-Ion Battery Charger IC with Dual Input Supply

RT9502
Absolute Maximum Ratings (Note 1)
z ACIN Input Voltage -------------------------------------------------------------------------------------------------------- −0.3V to 18V
z USB Input Voltage --------------------------------------------------------------------------------------------------------- −0.3V to 7V
z EN Input Voltage ----------------------------------------------------------------------------------------------------------- −0.3V to 6V
z Output Current ------------------------------------------------------------------------------------------------------------- 1.2A
z Power Dissipation, P_D @ T_A = 25°C
WDFN-10L 3x3 ------------------------------------------------------------------------------------------------------------- 0.926W
z Package Thermal Resistance (Note 2)
WDFN-10L 3x3, θ_JA ------------------------------------------------------------------------------------------------------- 108°C/W
WDFN-10L 3x3, θ_JC ------------------------------------------------------------------------------------------------------- 8.2°C/W
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
z Junction Temperature ---------------------------------------------------------------------------------------------------- 150°C
z Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 3)
HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V
Recommended Operating Conditions (Note 4)
z ACIN, USB Input Voltage Range --------------------------------------------------------------------------------------- 4.5V to 6V
z Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(ACIN = USB = 5V, TA = 27°C, Unless Otherwise specification)
Parameter
Symbol
Test Conditions
Supply Input
ACIN/USB UVP Rising Threshold
Voltage
ACIN/USB UVP Hysteresis
ACIN/USB Standby Current
ACIN/USB Shutdown Current
ACIN/USB UVP Current
V_{UV_HIGH}
V_{UV_LOW}
I_STBY
I_{SHD N}
I_UVP
BATT Sleep Leakage Current
Voltage Regulation
I_SLEEP
V_BATT = 4.5V
V_EN = High
V_ACIN = 4V, V_USB = 4V,
V_BATT = 3V
V_ACIN = 4V, V_USB = 4V
V_BATT = 4.5V
BATT Regulation Voltage
Regulation Voltage Accuracy
ACIN MOSFET
USB MOSFET
V_REG
I_BATT = 60mA
R_{DS(ON)_ACI}
N
R_{DS (ON)_U SB}
I_BATT = 500mA
I_BATT = 500mA
Current Regulation
ISETA Set Voltage
(Fast Charge Phase)
Full Charge setting range
V_ISETA
I_{CHG_ACIN}
V_BATT = 3.5V
DS9502-02 April 2011
Min Typ Max Units
--
4.4 4.5
V
50
80 120 mV
--
300 500 uA
--
50 100 uA
--
150 250 uA
--
2
5
uA
4.158 4.2 4.242 V
−1
--
+1
%
--
600
--
mΩ
-- 1200 --
mΩ
2.42
100
2.5 2.55 V
-- 1200 mA
To be continued
www.richtek.com
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