參數(shù)資料
型號： TPS2070
廠商： Texas Instruments, Inc.
英文描述： "Pwr Controller for Bus/Self Pwrd Hub w/ 5V LDO Control
中文描述： 具有 5V LDO 控制、3.3V LDO、8 個電源開關(guān)、工作態(tài)低電平 BPMode Ind，用于總線/自供電集線器的功率控制器
文件頁數(shù)： 10/29頁
文件大小： 472K
代理商： TPS2070
TPS2070, TPS2071
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS287A
–
SEPTEMBER 2000
–
REVISED FEBRUARY 2001
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating junction temperature range,
4.5 V
≤
V
I(BP)
≤
5.5 V, 4.85 V
≤
V
I(SP)
≤
5.5 V, 6 V
≤
V
I(VEXT)
≤
9 V, ENx = 0 V, EN_REG = 3.3 V,
BP_DIS = 0 V, C
L(SP)
= 220
μ
F (unless otherwise noted)
voltage regulator controller
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VO(CP)
Output voltage, charge pump
VI(VEXT) = 6 V,
C(CP_P) = 10 nF,
6 V
≤
VI(VEXT)
≤
9 V, IO(VCP) = 5 mA,
VO(VCP)= 10 V
VI(VCP) = 9 V, VO(GATE) = 7.5 V,
VI(SP) = 4.5 V
VI(VCP) = 9 V, VO(GATE) = 5.5 V,
VI(SP) = 5.5 V
VI(VEXT) = 6 V, 0.5 V
≤
VO(GATE)
≤
9 V
IO(VCP) = 5 mA
C(VCP)=100 nF
10
V
fosc
Oscillator frequency (see Note 1)
850
kHz
Gate drive current
Sourcing
500
μ
A
Sinking
1.5
mA
Open-loop gain (see Note 1)
80
dB
Reference voltage at VI(SP), using external
regulator
VI(VEXT) = 6 V to 9 V, IRLZ24N FET
4.90
5.1
5.25
V
Gate clamp voltage
Gate to SP
10
V
NOTE 1: Specified by design, not tested in production.
power switch timing requirements
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ton
Turnon time (see Note 1)
BP to OUTx
switch
VI(BP) = 5 V, VI(SP) = open, TA = 25
°
C,
CL = 100
μ
F, RL = 50
VI(SP) = VI(BP) = 5 V, TA = 25
°
C,
CL = 100
μ
F, RL = 10
VI(BP) = 5 V, VI(SP) = open, TA = 25
°
C,
CL = 100
μ
F, RL = 50
VI(SP) = VI(BP) = 5 V, TA = 25
°
C,
CL = 100
μ
F, RL = 10
VI(BP) = 5 V, VI(SP) = open, TA = 25
°
C,
CL = 100
μ
F, RL = 50
VI(SP) = VI(BP) = 5 V, TA = 25
°
C,
CL = 100
μ
F, RL = 10
VI(BP) = 5 V, VI(SP) = open, TA = 25
°
C,
CL = 100
μ
F, RL = 50
VI(SP) = VI(BP) = 5 V, TA = 25
°
C,
CL = 100
μ
F, RL = 10
4.5
ms
SP to OUTx
switch
4.5
tff
toff
Turnoff time (see Note 1)
BP to OUTx
switch
15
ms
SP to OUTx
switch
10
t
tr
Rise time output (see Note 1)
Rise time, output (see Note 1)
BP to OUTx
switch
4
ms
SP to OUTx
switch
3
tf
Fall time output (see Note 1)
Fall time, output (see Note 1)
BP to OUTx
switch
10
ms
SP to OUTx
switch
3
Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately.
NOTE 1. Specified by design, not tested in production.
thermal shutdown
PARAMETER
MIN
TYP
MAX
UNIT
TJ
Thermal shutdown
First
140
°
C
Second
150
Hysteresis
First
Second
15
25
°
C
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TPS2070DAP 制造商:Texas Instruments 功能描述:Controller IC
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