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参数资料
| 型号： | TPS2074 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24 |
| 封装： | PLASTIC, SSOP-24 |
| 文件页数： | 22/24页 |
| 文件大小： | 389K |
| 代理商： | TPS2074 |
TPS2074, TPS2075
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS288 – SEPTEMBER 2000
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating junction temperature range,
4.5 V
≤ VI(BP) ≤ 5.5 V, 4.85 V ≤ VI(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
2.4
VOH
High level output voltage
BPMODE
4.25 V
≤ VI(BP) ≤ 5.5 V,
VI(SP) < 4 V
IO =2mA
2.4
V
VOH
High-level output voltage
OCx
4.25 V
≤ VI(BP) ≤ 5.5 V,
VI(ENx) = 3.3 V or Hi-Z
IO = 2 mA
2.4
V
DPO_RST
4.25 V
≤ VI(BP) ≤ 5.5 V,
VI(PG_DLY) = 3.3 V
2.4
BPMODE
4.25 V
≤ VI(BP) ≤ 5.5 V,
VI(SP) < 4 V
IO =3 2mA
0.4
VOL
Low-level output voltage
BPMODE
4.25 V
≤ VI(BP) ≤ 5.5 V,
4.5 V
≤ VI(SP) ≤ 5.5 V
IO = 3.2 mA
0.4
V
OCx
4.25 V
≤ VI(BP) ≤ 5.5 V,
OUTx = 0 V
IO(OC) = 3.2 mA
0.4
Minimum input voltage at BP for
IO = 300 A,
VO(BPMODE)≤ 0.4 V
1.5
VI(BP)
Minimum input voltage at BP for
low-level output
IO = 300 A, VI(SP) = 5 V
VO(BPMODE)≤ 0.4 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
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
UNIT
Start threshold
SP
4.5
V
Start threshold
BP
VI(SP) = Hi-Z
4.25
V
Stop threshold
SP
4
V
Stop threshold
BP
3.75
V
Vh
Hysteresis voltage (see Note 1)
SP
300
mV
Vhys
Hysteresis voltage (see Note 1)
BP
300
mV
NOTE 1: Specified by design, not tested in production.
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