参数资料
型号: TPS70758PWPR
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20
封装: GREEN, PLASTIC, HTSSOP-20
文件页数: 34/38页
文件大小: 626K
代理商: TPS70758PWPR
www.ti.com
TPS70745, TPS70748
TPS70751, TPS70758
TPS70702
SLVS291D – MAY 2000 – REVISED DECEMBER 2007
ELECTRICAL CHARACTERISTICS (continued)
Over recommended operating junction temperature range (TJ = –40°C to +125°C), VIN1 or VIN2 = VOUT(nom) + 1V, IO = 1mA,
EN = 0V, and CO = 33F (unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
RESET Terminal
Minimum input voltage for valid RESET
IRESET = 300A,
V(RESET) ≤ 0.8V
1.0
1.3
V
Trip threshold voltage
VO decreasing
92%
95%
98%
VOUT
Hysteresis voltage
Measured at VO
0.5%
VOUT
t(RESET)
RESET pulse duration
80
120
160
ms
tr(RESET)
Rising edge deglitch
30
s
Output low voltage
VI = 3.5V,
IO(RESET) = 1mA
0.15
0.4
V
Leakage current
V(RESET) = 6V
1
A
PG1 Terminal
Minimum input voltage for valid PG1
I(PG1) = 300A,
V(PG1) ≤ 0.8V
1.0
1.3
V
Trip threshold voltage
VO decreasing
92%
95%
98%
VOUT
Hysteresis voltage
Measured at VO
0.5%
VOUT
tf(PG1)
Falling edge deglitch
30
s
Output low voltage
VI = 2.7V,
IO(PG1) = 1mA
0.15
0.4
V
Leakage current
V(PG1) = 6V
1
A
EN Terminal
High level EN input voltage
2
V
Low level EN input voltage
0.7
V
Input current (EN)
–1
1
A
SEQ Terminal
High level SEQ input voltage
2
V
Low level SEQ input voltage
0.7
V
Falling edge delay
Measured at VO
140
s
SEQ pull-up current source
6
A
MR1 / MR2 Terminals
High level input voltage
2
V
Low level input voltage
0.7
V
Pull-up current source
6
A
VOUT2 Terminal
VOUT2 UV comparator: Positive-going
input threshold voltage of VOUT2 UV
80% VO
83% VO
86% VO
V
comparator
VOUT2 UV comparator: Falling edge
VSENSE_2 decreasing below threshold
140
s
deglitch
Peak output current
2ms pulse width
375
mA
Discharge transistor current
VOUT2 = 1.5V
7.5
mA
Copyright 2000–2007, Texas Instruments Incorporated
5
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