RT5021 Datasheet, PDF (27/67 Pages) Richtek Technology Corporation – Channels DC/DC PMU with Li-ion Battery Charger

RT5021
Battery with NTC Resistor Plug-Out
With Battery without NTC Resistor
IBAT
(500mA/Div)
VBAT
(5V/Div)
VIN
(5V/Div)
VTS
(5V/Div)
VBAT = Real Battery, 500mA Mode
Time (250ms/Div)
IBAT
(500mA/Div)
VBAT
(5V/Div)
VIN
(5V/Div)
VTS
(5V/Div)
VBAT = Real Battery, 500mA Mode
Time (50ms/Div)
With NTC Resistor without Battery
V_IN Exist then Negative Battery and Plug-out
IBAT
(500mA/Div)
VBAT
(5V/Div)
VIN
(5V/Div)
VTS
(5V/Div)
VBAT = Real Battery, 500mA Mode
Time (50ms/Div)
VBAT
(5V/Div)
VIN
(5V/Div)
VSYS
(10V/Div)
IIN
(100mA/Div)
VBAT = Real Battery, RSYS = 50Ω, 100mA Mode
Time (500ms/Div)
Negative Battery then V_IN Plug-In
VBAT
(5V/Div)
VBAT = Real Battery,
RSYS = 10Ω, 500mA Mode
VIN
(5V/Div)
VSYS
(10V/Div)
IIN
(500mA/Div)
Time (50ms/Div)
The Temperature of Battery Status
Normal -> Too Cold (Voltage)
VTS
(2V/Div)
JEITA = 0, VSETH = 1, VSETC = 1, or
JEITA = 0, VSETH = 0, VSETC = 1, or
JEITA = 1, VSETH = 1, VSETC = x
VBAT
(2V/Div)
VBAT = Real Battery, 1.5A Mode
Time (25ms/Div)
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS5021-01 April 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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