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RT9480 데이터시트(PDF) 7 Page - Richtek Technology Corporation

부품명 RT9480
상세설명  Easy to Use Power Bank Solution
PDF  16 Pages
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제조업체  RICHTEK [Richtek Technology Corporation]
홈페이지  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9480 데이터시트(HTML) 7 Page - Richtek Technology Corporation

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RT9480
7
DS9480-04
December 2014
www.richtek.com
©
Copyright
2014 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Input
Output Voltage
VOUTBST
--
5.1
--
V
Output Voltage Accuracy
VOUTBST
5
--
5
%
MAX Output Current
As VBAT > 3.3V, VOUT = 5V
--
2.5
--
A
PFET Peak Current Limit
IOCP
6
--
--
A
Power Switch
Switching Frequency
fSW
0.2
0.25
0.3
MHz
Protection
Over-Voltage Protection
VMID_OVP
5.6
5.7
6
V
Over-Voltage Protection
Hysteresis
VMID_OVP_hys
--
0.2
--
V
Under-Voltage Protection
(Short-Circuit Protection)
VBST_FBUV
--
3.37
--
V
Boost Unit Electrical Characteristics
(VBUS = 5V, VBAT = 3.7V, TA = 25
°C, unless otherwise specified)
Charger Unit Electrical Characteristics
(VBUS = 5V, VBAT = 3.7V, TA = 25
°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Input
VBUS
 VBAT VOS Rising
VOS_H
--
100
200
mV
VBUS
 VBAT VOS Falling
VOS_L
10
50
--
mV
Battery Charger
VBUS Operating Range
VBUS_CHG
4.5
--
5.5
V
VBUS Regulation
DPM
VDPM = 4.5V
5
--
5
%
Voltage Regulation
VBAT Regulation
VREG
TA = 0 to 85C, VREG = 4.2V
1
--
1
%
Re-Charge Threshold
VRECHG
VREG  Recharge Level
--
150
--
mV
VBUS Power FET RDS(ON)
RDS(ON)_chg IBAT = 1A
--
200
300
m
Current Regulation
Fast-Charge Current Accuracy ICHG
ICHG = 1.2A
5
--
5
%
Pre-Charge Current Accuracy
ICHG_Pre
Ratio of Fast-Charge Current
5.5
10
14.5
%
Pre-Charge Threshold
Vpre
VBAT Rising
2.35
2.5
2.65
V
Pre-Charge Threshold
Hysteresis
Vpre
VBAT Falling
120
200
280
mV
Charge Termination Detection
Termination Current Ratio
ITERMI
--
10
--
%
Timer
Fast-Charge Time Fault
TF_CC
--
24
--
hour



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