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参数资料
| 型号： | TPS2074DB |
| 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： | GREEN, PLASTIC, SSOP-24 |
| 文件页数： | 29/29页 |
| 文件大小： | 732K |
| 代理商： | TPS2074DB |
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ELECTRICAL CHARACTERISTICS
SLVS287B – SEPTEMBER 2000 – REVISED SEPTEMBER 2007
over recommended operating junction temperature range, 4.5 V
≤ VI(BP) ≤ 5.5 V, 4.85 V ≤ VI(SP) ≤ 5.5 V, 6 V ≤ VI(VEXT) ≤ 9 V,
ENx = 0 V, EN_REG = 0 V, BP_DIS = 0 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT SIGNALS (ENx, EN_REG, BP_DIS)
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
Pullup
ENx (active-low)
VI(ENx) = 0 V
5
II
Input current
EN_REG (active-high)
VI(EN_REG) = 5 V
5
μA
Pulldown
BP_DIS (active-high)
VI(BP_DIS) = 5 V
5
over recommended operating junction temperature range, 4.5 V
≤ VI(BP) ≤ 5.5 V, 4.85 V ≤ VI(SP) ≤ 5.5 V, 6 V ≤ VI(VEXT) ≤ 9 V,
ENx = 0 V, EN_REG = 0 V, BP_DIS = 0 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OUTPUT SIGNALS (BPMODE or BPMODE, OCx, DPO_RST)
4.25 V
≤ VI(BP) ≤ 5.5 V,
BPMODE
2.4
4.5 V
≤ VI(SP) ≤ 5.5 V
BPMODE
4.25 V
≤ VI(BP) ≤ 5.5 V,
2.4
VI(SP) < 4 V
High-level output
VOH
IO = 2 mA
V
voltage
OCx
4.25 V
≤ VI(BP) ≤ 5.5 V,
2.4
VI(ENx) = 3.3 V or Hi-Z
DPO_RST
4.25 V
≤ VI(BP) ≤ 5.5 V,
2.4
VI(PG_DLY) = 3.3 V
BPMODE
4.25 V
≤ VI(BP) ≤ 5.5 V,
0.4
VI(SP) < 4 V
IO = 3.2 mA
Low-level output
BPMODE
4.25 V
≤ VI(BP) ≤ 5.5 V,
VOL
V
0.4
voltage
4.5 V
≤ VI(SP) ≤ 5.5 V
OCx
4.25 V
≤ VI(BP) ≤ 5.5 V,
IO(OC) = 3.2 mA
0.4
OUTx = 0 V
IO = 300 μA, VO(BPMODE) ≤ 0.4 V
1.5
Minimum input voltage at BP for
VI(BP)
μA
low-level output
IO = 300 μA, VO(BPMODE) ≤ 0.4 V, VI(SP) = 5 V
1.5
0 V
≤ VI(DP0_RST) ≤ 3.3 V, VI(SP) = 0 V,
IIkg
Hi-Z leakage current at DP0_RST
–5
5
VI(BP) = 5.5 V, VI(PG_DLY) = 0.9 V
td
Overcurrent response delay time(1)
1
10
ms
UNDERVOLTAGE LOCKOUT (SP, BP, VEXT)
SP
4.5
Start threshold
BP
VI(SP) = Hi-Z
4.25
V
VEXT
3
SP
4
Stop threshold
BP
3.75
V
VEXT
2.5
SP
300
Vhys
Hysteresis voltage (1)
BP
300
mV
VEXT
150
(1)
Specified by design, not tested in production.
Copyright 2000–2007, Texas Instruments Incorporated
9
Product Folder Link(s): TPS2070 TPS2071
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