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RT9460 Datasheet(PDF) 7 Page - Richtek Technology Corporation

Part # RT9460
Description  Switch-Mode Single Cell Li-Ion Charger
Download  33 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9460 Datasheet(HTML) 7 Page - Richtek Technology Corporation

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DS9460-04 August 2017
www.richtek.com
RT9460
©
Copyright 2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Charge Termination Detection
End of Charge Current
IEOC
I2C programmable per 50mA
100
--
450
mA
Fixed IEOC
As IAICR = 100mA
--
50
--
mA
IEOC Accuracy
100
--
100
mA
Deglitch Time for EOC
TEOC
ICHG < IEOC, VBAT > VREC
--
2
--
ms
PWM
High-Side On-Resistance
From VIN to LX,
Exclude IAICR = 100mA
--
90
150
m
Low-Side On-Resistance
From LX to PGND
--
60
100
m
Charging Efficiency
VBATx = 4V, and ICHG = 2A,
--
85
--
%
Oscillator Frequency
OSC
I2C Programmable 0.75/1.5 MHz
--
1.5
--
MHz
Frequency Accuracy
10
--
10
%
Maximum Duty Cycle
At minimum voltage input
--
95
--
%
Minimum Duty Cycle
0
--
--
%
Peak OCP as Charger Mode
ICHGOCP
--
4.5
--
A
Power Path On-Resistance
From SYS to VBAT
--
35
60
m
Boost Mode Operation
Output Voltage Level
VOTG
To VIN
--
5.05
--
V
Output Voltage Accuracy
3
--
3
%
Efficiency
VBATx = 4V, and IIN = 0.8A,
--
85
--
%
MAX Output Current
I2C programmable, 0.5A/1A
1
--
--
A
Peak Over-Current Protection
--
4.5
--
A
VIN OVP as OTG Boost
--
6
--
V
VIN OVP Hysteresis
--
250
--
mV
Minimum Battery Voltage for
Boost
VBATMIN
As boost start-up
--
2.9
--
V
Minimum Battery Voltage
Hysteresis
--
400
--
mV
I
2C Characteristics
Output Low Voltage
VOL
IDS = 10mA
--
--
0.4
V
SCL, SDA Input
Threshold Voltage
Logic-High VIH
1.3
--
--
V
Logic-Low VIL
--
--
0.4
SCL Clock
--
--
400
kHz


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