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RT9470 Datasheet(PDF) 11 Page - Richtek Technology Corporation

Part # RT9470
Description  3A Single Cell Switching Battery Charger
PDF  50 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9470 Datasheet(HTML) 11 Page - Richtek Technology Corporation

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RT9470/D
Copyright © 2023 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS9470/D-02
October 2023
www.richtek.com
11
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
OTG Voltage Limit
Regulation Range
VOTG_CV_RANGE
Default = 5.15V
4.85
--
5.3
V
OTG Voltage Limit
Regulation Step
VOTG_CV_STEP
--
150
--
mV
OTG Voltage Limit
Regulation Accuracy
VOTG_CV_ACC
VBAT = 3.8V, IPMID = 0A, VOTG_REG
= 5.15V
−3
--
3
%
OTG Current Limit
Regulation Accuracy
IOTG_CC
IOTG_LIMIT_REG_SEL = 1.2A
1.2
1.4
1.6
A
IOTG_LIMIT_REG_SEL = 0.5A
0.5
0.6
0.7
OTG Over-Voltage
Threshold
VOTG_OVP
VAC rising, VAC_OVP = 6.5V
6.2
6.5
6.8
V
OTG Capacitive Load
COTG_LOAD
VBAT = 3.8V, VOTG_REG = 5.15V,
capacitive load plug in
--
--
300
F
PWM
PWM Switching
Frequency
fSW_BUCK
Oscillator frequency, buck mode
1350
1500
1650
kHz
fSW_BOOST
Oscillator frequency, boost mode
1350
1500
1650
Maximum PWM Duty
Cycle
DMAX
--
97
--
%
REGN
REGN LDO Output
Voltage
VREGN
VBUS = 9V, IREGN = 40mA
4.5
4.9
5.3
V
VBUS = 5V, IREGN = 20mA
4.5
4.9
5
Control I/O Pin (CE, PSEL, SCL and SDA)
Input High Threshold
Voltage
VIH_CTRL
1.3
--
--
V
Input Low Threshold
Voltage
VIL_CTRL
--
--
0.4
V
High Level Leakage
Current
IBIAS
Pull high to 1.8V
--
--
1
A
Control I/O Pin (PG, STAT and INT)
Output Low Threshold
Voltage
VOL_CTRL
--
--
0.4
V
INT Pull Low Time
tINT_PULL_LOW
INT pull low time
--
256
--
s
D+/D- Detection
Data Detect Voltage
VDAT_REF
0.25
0.325
0.4
V
D- Current Sink
ID-_ISNK
50
100
150
A
D+D- Leakage Current
ID+D-_LKG
−1
--
1
A
D- Pull Down for
Connection Check
RD-_19K
14.25
19.53
24.8
k
D+D- Threshold for
Non-Standard Adapter
(1.2V)
VD+D-_1P2
--
1.2
--
V
D+D- Threshold for
Non-Standard Adapter
(2V)
VD+D-_2P0
--
2
--
V



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