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RT5021 数据表(PDF) 14 Page - Richtek Technology Corporation

部件名 RT5021
功能描述  Channels DC/DC PMU with Li-ion Battery Charger
PDF  67 Pages
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制造商  RICHTEK [Richtek Technology Corporation]
网页  http://www.richtek.com
标志 RICHTEK - Richtek Technology Corporation

RT5021 数据表(HTML) 14 Page - Richtek Technology Corporation

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RT5021
14
DS5021-01 April 2013
www.richtek.com
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
©
(VIN = 5V, VBAT = 4V, TA = 25
°C, unless otherwise specified)
Charger Unit :
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Input
VIN Under Voltage Lockout
Threshold
VUVLO
VIN = 0V to 4.5V
3.1
3.3
3.5
V
VIN Under Voltage Lockout
Hysteresis
ΔVUVLO
VIN = 4.5V to 0V
--
240
--
mV
ISYS = IBAT = 0mA, A7.ENCH = 0
(VBAT > VREGx)
--
1
2
mA
VIN Supply Current
ISUPPLY
ISYS = IBAT = 0mA, A7.ENCH = 1
(VBAT > VREGx)
--
0.8
1.5
mA
VIN Suspend Current
IUSUS
VIN = 5V, A7.USUS = 1
--
195
300
μA
VIN
−BAT VOS Rising
VOS_H
--
200
300
mV
VIN
−BAT VOS Falling
VOS_L
10
50
--
mV
Voltage Regulation
System Regulation Voltage
VSYS
ISYS = 800mA
4.9
5
5.1
V
Battery Regulation Voltage
VREG1
0 to 85°C, Loading = 20mA,
When A9. VSETH = 1 and
A9.VSETC = 1
4.16
4.2
4.23
V
Battery Regulation Voltage
VREG2
0 to 85°C, Loading = 20mA, When
A9. VSETH = 0 and A9. VSETC = 0
4.01
4.05
4.08
V
APPM Regulation Voltage
VAPPM
4.05
4.15
4.25
V
DPM Regulation Voltage
VDPM
4.25
4.35
4.45
V
VIN to VSYS MOSFET Ron
RDS(ON)
IVIN = 1000mA
--
0.2
0.35
Ω
BAT to VSYS MOSFET Ron
RDS(ON)
VBAT = 4.2V, ISYS = 1A
--
0.05
0.1
Ω
Re-Charge Threshold
ΔVREGCHG Battery Regulation - Recharge level
60
100
140
mV
Current Regulation
Charge Current Setting Range ICHG
100
--
1200
mA
Charge Current Accuracy1
ICHG1
VBAT = 4V,
A8.ISETA [3 : 0] = 4’b0101
570
600
630
mA
Charge Current Accuracy2
ICHG2
VBAT = 3.8V,
A8.ISETA [3 : 0] = 4’b0010
285
300
315
mA
A7.ISETL = 1, A7.ISETU = 1 (1.5A
Mode)
1.5
1.8
2.1
A
A7.ISETL = 1, A7.ISETU = 0
(1A Mode)
0.85
0.925
1.0
A
A7.ISETL = 0, A7.ISETU = 1
(500mA mode)
450
475
500
mA
VIN Current Limit
ILIM_VIN
A7.ISETL = 0, A7.ISETU = 0
(100mA Mode)
80
90
100
mA
Pre-Charge
BAT Pre-Charge Threshold
VPRECH
BAT Falling
2.7
2.8
2.9
V
BAT Pre-Charge Threshold
Hysteresis
ΔVPRECH
--
200
--
mV
Pre-Charge Current
ICHG_PRE
VBAT = 2V
5
10
15
%



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