參數(shù)資料
型號(hào): TPS2074DBR
廠商: Texas Instruments, Inc.
英文描述: FOUR-PORT USB HUB POWER CONTROLLERS
中文描述: 4端口USB集線器電源控制器
文件頁(yè)數(shù): 7/25頁(yè)
文件大小: 416K
代理商: TPS2074DBR
TPS2074, TPS2075
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS288A
SEPTEMBER 2000
REVISED FEBRUARY 2001
7
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, ENx = 0 V, BP_DIS = 0 V (unless otherwise noted)
(continued)
output signals (BPMODE or BPMODE, OCx, DPO_RST)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
BPMODE
4.25 V
VI(BP)
5.5 V,
4.5 V
VI(SP)
5.5 V
4.25 V
VI(BP)
5.5 V,
VI(SP) < 4 V
4.25 V
VI(BP)
5.5 V,
VI(ENx) = 3.3 V or Hi-Z
4.25 V
VI(BP)
5.5 V,
VI(PG_DLY) = 3.3 V
4.25 V
VI(BP)
5.5 V,
VI(SP) < 4 V
4.25 V
VI(BP)
5.5 V,
4.5 V
VI(SP)
5.5 V
4.25 V
VI(BP)
5.5 V,
OUTx = 0 V
2.4
VOH
High level output voltage
High-level output voltage
BPMODE
IO= 2 mA
IO = 2 mA
2.4
V
OCx
2.4
DPO_RST
2.4
BPMODE
IO= 3 2 mA
IO = 3.2 mA
0.4
VOL
Low-level output voltage
BPMODE
0.4
V
OCx
IO(OC) = 3.2 mA
0.4
Minimum input voltage at BP for
low-level output
IO = 300
μ
A,
VO(BPMODE)
0.4 V
VO(BPMODE)
0.4 V,
1.5
VI(BP)
IO = 300
μ
A, VI(SP) = 5 V
1.5
V
Ilkg
Hi-Z leakage current at DP0_RST
0 V
VI(DPO_RST)
3.3 V, VI(SP) = 0 V,
VI(BP) = 5.5 V, VI(PG_DLY) = 0.9 V
5
5
μ
A
td
Overcurrent response delay time
(see Note 1)
1
10
ms
NOTE 1: Specified by design, not tested in production.
undervoltage lockout (SP and BP)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
4.5
UNIT
Start threshold
SP
V
BP
VI(SP) = Hi-Z
4.25
Stop threshold
SP
4
V
BP
3.75
Vhys
Hysteresis voltage (see Note 1)
SP
BP
300
300
mV
NOTE 1: Specified by design, not tested in production.
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