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RT5021 数据表(PDF) 9 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) 9 Page - Richtek Technology Corporation

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RT5021
9
DS5021-01 April 2013
www.richtek.com
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
©
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Current
Shutdown Supply Current into BAT
(Include IDDQ of RTC LDO)
IOFF-BAT
EN = L, and PMU off,
BAT = 4.2V
--
10
20
μA
CH1 + CH2 + CH3 + CH4
Supply Current
IQ1234
Non switching, EN = 3.3V
--
--
2000
μA
CH5 Supply Current
IQ5
Non switching, A2.EN5 = 1
--
--
500
μA
CH6 Supply Current
IQ6
A2.EN6 = 1
--
--
100
μA
CH7 in Step-Up Mode Supply
Current
IQ7b
Non switching,
A2.EN7_DIM7 [4:0] = 5’b11111
--
--
500
μA
CH7 in Current Source mode Supply
Current
IQ7c
A2.EN7_DIM7 [4:0] = 5’b11111
PVD7 = 5V
--
--
400
μA
CH8 Supply Current
IQ8
A2.EN8 = 1
--
--
100
μA
Oscillator
CH1, 3, 4, 5 Operation Frequency
fOSC_1345
1800
2000
2200
kHz
CH2, 7 Operation Frequency
fOSC_27
CH7 in Step-Up mode
900
1000
1100
kHz
CH1 LV Sync Step-Up
Output Voltage Accuracy at PVD1
Target voltage defined at
A4.VOUT1 [3:0]
−1.5
--
1.5
%
Minimum On Time for PSM
--
100
--
ns
Soft-Start Time
PVD1 = 0 to 5V
--
4
--
ms
Maximum Duty Cycle (Step-Up)
PVD1 < Target defined in
A4.VOUT1 [3:0]
80
83
86
%
RDS(ON)_P
P-MOSFET, PVD1 = 3.3V
--
200
300
m
Ω
On Resistance of MOSFET
RDS(ON)_N N-MOSFET, PVD1 = 3.3V
--
150
250
m
Ω
Current Limitation (Step-Up)
ILIM_1
2.2
3
4
A
Over Voltage Protection at PVD1
5.82
6
6.18
V
Under Voltage Protection -1 at
PVD1
--
SYS
− 0.8
--
V
Under Voltage Protection -2 at
PVD1
Target Voltage is defined in
A4.VOUT1 [3:0]
--
Target
x 0.5
--
V
Over Load Protection at PVD1
Target Voltage is defined in
A4.VOUT1 [3:0]
--
Target
− 0.6
--
V
Off Discharge Current at PVD1
PVD1 = 5V, SYS = 3.3V
--
20
--
mA
Discharge Finishing Threshold at
PVD1
--
0.6
--
V
CH2 LV Sync Step-Up/Down
Feedback Regulation Voltage at
FB2
A4.FB2 [2:0] = 3’b100
0.788
0.8
0.812
V
Soft-Start Time
FB2 = 0 to 0.8V
--
4
--
ms
LX2B
--
55
--
%
Maximum Duty Cycle
LX2A
--
--
100
%
LX2A
− GND,
N-MOSFET PVD2 = 3.3V
--
200
300
m
Ω
On Resistance of MOSFET
RDS(ON)_2A
PVD2
− LX2A,
P-MOSFET PVD2 = 3.3V
--
150
250
m
Ω



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