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RT9525 Datasheet(PDF) 7 Page - Richtek Technology Corporation

Part # RT9525
Description  Linear Single Cell Li-Ion Battery Charger with Auto Power Path
PDF  15 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9525 Datasheet(HTML) 7 Page - Richtek Technology Corporation

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RT9525
7
DS9525-01 May 2011
www.richtek.com
Typical Operating Characteristics
Load Transient Response
Time (1ms/Div)
IIN
(1A/Div)
VIN
(10V/Div)
VSYS
(5V/Div)
IBAT
(2A/Div)
APPM, 1.5A Mode, VIN = 5V, VBAT = 3.7V
RISETA = 1k
Ω, ISYS = 0 to 2A
ISYS
(2A/Div)
VBAT
(5V/Div)
SYSOFF On/Off With Input Power
Time (5ms/Div)
VBAT
(5V/Div)
VSYSOFF
(5V/Div)
VSYS
(5V/Div)
IBAT
(200mA/Div)
VIN = 6V, VBAT = 3.7V, 1.5A Mode, RISETA = 1k
Ω
VIN = 5V, VBAT = 3.7V, 1.5A Mode, RISETA = 1k
Ω
Charger Detect Sequence
Time (10ms/Div)
CHG
(5V/Div)
EN
(5V/Div)
VBAT
(2V/Div)
IBAT
(500mA/Div)
SYSOFF On/Off Without Input Power
Time (5ms/Div)
VBAT
(5V/Div)
VSYSOFF
(5V/Div)
VSYS
(5V/Div)
IBAT
(500mA/Div)
VIN = NC, VBAT = 3.7V, 1.5A Mode,
RISETA = 1k
Ω, RSYS = 10kΩ
OVP Fault
Time (50
μs/Div)
VSYS
(2V/Div)
VIN
(10V/Div)
VBAT
(1V/Div)
IBAT
(500mA/Div)
VIN = 5V to 15V, VBAT = 3.7V,
1.5A Mode, RISETA = 1k
Ω, RSYS = 10Ω
VIN
VSYS
VBAT
IBAT
Charger CHG Status After Safety Timers Expired
Time (250
μs/Div)
VIN
(5V/Div)
CHG
(2V/Div)
VBAT
(2V/Div)
IBAT
(500mA/Div)
VIN = 5V, VBAT = 3.7V, RISETA = 620
Ω



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