參數(shù)資料
型號： TPS2068IDGNRQ1
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PDSO8
封裝： GREEN, PLASTIC, MSOP-8
文件頁數(shù)： 18/24頁
文件大小： 756K
代理商： TPS2068IDGNRQ1
www.ti.com ................................................................................................................................................................................................ SLVS999 – AUGUST 2009
ELECTRICAL CHARACTERISTICS
–40°C
≤ TJ ≤ 105° VI(IN) = 5.5 V, IO = 1 A, VI(EN) = 0 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS (1)
MIN
TYP
MAX
UNIT
POWER SWITCH
Static drain-source on-state resistance,
VI(IN) = 5 V or 3.3 V, IO = 1.5 A
70
150
m
5-V operation and 3.3-V operation
rDS(on)
Static drain-source on-state resistance,
VI(IN) = 2.7 V, IO = 1.5 A
75
150
m
2.7-V operation
VI(IN) = 5.5 V
0.6
1.5
tr
Rise time, output(2)
VI(IN) = 2.7 V
0.4
1
CL = 1 μF,
TJ =25°C
ms
RL = 5
VI(IN) = 5.5 V
0.05
0.5
tf
Fall time, output(2)
VI(IN) = 2.7 V
0.05
0.5
ENABLE INPUT EN
VIH
High-level input voltage
2.7 V < VI(IN) < 5.5 V
2
V
VIL
Low-level input voltage
2.7 V < VI(IN) < 5.5 V
0.8
II
Input current
VI(EN) = 0 V or 5.5 V
-0.5
0.5
μA
ton
Turn-on time(2)
CL = 100 μF, RL = 5
3
ms
toff
Turn-off time(2)
CL = 100 μF, RL = 5
10
CURRENT LIMIT
VI(IN) = 5 V, OUT connected to GND,
IOS
Short-circuit output current
1.6
2.1
2.6
A
Device enabled into short-circuit
IOC_TRIP
Overcurrent trip threshold(2)
VI(IN) = 5 V, Current ramp (≤ 100 A/s) on OUT
2.3
2.85
3.4
A
VI(IN) = 5 V, OUT connected to GND, Device enabled into
IOS
(3)
Short-circuit output current(2)
3.2
4.2
5.2
A
short-circuit, current measured at VI(IN)
TJ = 25°C
0.5
1
IOL
Supply current, low-level output
No load on OUT, VI(EN) = 5.5 V
μA
Over TJ range
0.5
5
TJ = 25°C
43
60
IOH
Supply current, high-level output
No load on OUT, VI(EN) = 0 V
μA
Over TJ range
43
70
Ilkg
Leakage current
OUT connected to ground, VI(EN) = 5.5 V
1
μA
Reverse leakage current
VI(OUT) = 5.5 V, IN = ground
TJ = 25°C
0.2
μA
UNDERVOLTAGE LOCKOUT
Low-level input voltage, IN
2
2.5
V
Hysteresis, IN
TJ = 25°C
75
mV
OVERCURRENT OC
VOL(OC)
Output low voltage
IO(OC) = 5 mA
0.4
V
Off-state current
VO(OC) = 5 V or 3.3 V
1
μA
OC deglitch(2)
OC assertion or deassertion
4
8
15
ms
THERMAL SHUTDOWN(4)
Thermal shutdown threshold(2)
135
°C
Recovery from thermal shutdown(2)
125
°C
Hysteresis
10
°C
(1)
Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account
separately.
(2)
Specified by design
(3)
This configuration has not been tested for UL certification.
(4)
The thermal shutdown only reacts under overcurrent conditions.
Copyright 2009, Texas Instruments Incorporated
3
Product Folder Link(s): TPS2068-Q1
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