參數(shù)資料
型號： TPS65020RHA
廠商： Texas Instruments, Inc.
英文描述： POWER MANAGEMENT IC FOR LI-ION POWERED SYSTEMS
中文描述： 電源管理IC鋰離子供電系統(tǒng)
文件頁數(shù)： 9/44頁
文件大?。?/td> 3085K
代理商： TPS65020RHA
www.ti.com
ELECTRICAL CHARACTERISTICS
VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, T
A
= –40
°
C to 85
°
C, typical values are
at T
A
= 25
°
C (unless otherwise noted)
TPS65020
SLVS607–SEPTEMBER 2005
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VLDO1 and VLDO2 LOW DROPOUT REGULATORS
V
I
Input voltage range for LDO1, 2
V
O
LDO1 output voltage range
V
O
LDO2 output voltage range
Maximum output current for LDO1,
I
O
LDO2
LDO1 and LDO2 short circuit cur-
I
(SC)
rent limit
Minimum voltage drop at LDO1,
LDO2
Minimum voltage drop at LDO1,
LDO2
Output voltage accuracy for LDO1,
LDO2
1.5
6.5
3.3
3.3
V
V
V
1
1.0
50
mA
VLDO1 = GND, VLDO2 = GND
400
mA
I
O
= 50 mA, VINLDO = 1.8 V
120
mV
I
O
= 50 mA, VINLDO = 1.5 V
65
150
mV
I
O
= 10 mA
–2%
1%
VINLDO1,2 = VLDO1,2 + 0.5 V (min.
2.5 V) to 6.5 V, I
O
= 10 mA
I
O
= 0 mA to 50 mA
Load change from 10% to 90%
Line regulation for LDO1, LDO2
–1%
1%
Load regulation for LDO1, LDO2
Regulation time for LDO1, LDO2
–1%
1%
10
μ
s
ANALOGIC SIGNALS DEFDCDC1, DEFDCDC2, DEFDCDC3
V
IH
High level input voltage
V
IL
Low level input voltage
I
H
Input bias current
LOGIC SIGNALS PB_IN; PB_OUT
Low level output voltage at
V
OL
PB_OUT
V
OH
High level output voltage PB_OUT
V
IL
Low level input voltage PB_IN
V
IH
High level input voltage PB_IN
II Input leakage current PB_IN
THERMAL SHUTDOWN
T
(SD)
Thermal shutdown
Thermal shudown hysteresis
INTERNAL UNDER VOLTAGE LOCK OUT
UVLO
Internal UVLO
Internal UVLO comparator hyster-
V
(UVLO_HYST)
esis
VOLTAGE DETECTOR COMPARATORS
Comparator threshold
(PWRFAIL_SNS, LOWBAT_SNS)
Hysteresis
Propagation delay
POWER GOOD
1.3
VCC
0.4
0.05
V
V
μ
A
0
0.001
I
OL
= 20 mA
0.5
V
6
V
V
V
μ
A
0.4
1.3
Vcc
(1)
1
Increasing junction temperature
Decreasing junction temperature
160
20
°
C
°
C
VCC falling
–2%
2.35
2%
V
120
mV
Falling threshold
–1%
1.0
1%
V
40
50
60
10
mV
μ
s
25 mV overdrive
VDCDC1, VDCDC2, VDCDC3, VLDO1,
VLDO2, decreasing
VDCDC1, VDCDC2, VDCDC3, VLDO1,
VLDO2, increasing
V
(PGOODF)
–12%
–10%
–8%
V
(PGOODR)
–7%
–5%
–3%
(1)
The input voltage can go as high as 6 V. If the input voltage exceeds VCC, an input current of (V
(PB_IN)
- 0.7 V - VCC) / 10 kR flows.
9
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