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參數資料
型號: TPS24710
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: POWER SUPPLY SUPPORT CKT, PDSO10
封裝: GREEN, PLASTIC, MSOP-10
文件頁數: 29/34頁
文件大小: 2148K
代理商: TPS24710
Time
T0494-01
50%
I
GATE
V
VCC
t
(prr50-50)
0
90%
t
(pff50-90)
Time
T0492-01
50%
0
V
GATE
V
EN
SLVSAL2C
– JANUARY 2011 – REVISED MAY 2011
ELECTRICAL CHARACTERISTICS (continued)
–40°C ≤ TJ ≤ 125°C, VCC = 12 V, VEN = 3 V, and RPROG = 50 kΩ to GND.
All voltages referenced to GND, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
NOM
MAX
UNIT
VTIMER = 2 V
8
10
12
A
Sinking current
VEN = 0 V, VTIMER = 2 V
2
4.5
7
mA
Upper threshold voltage
1.30
1.35
1.40
V
Lower threshold voltage
0.33
0.35
0.37
V
Timer activation voltage
Raise GATE until ITIMER sinking, measure V(GATE – VCC), VCC = 12 V
5
5.9
7
V
Bleed-down resistance
VENSD = 0 V, VTIMER = 2 V
70
104
130
k
Ω
OUT
Input bias current
VOUT = 12 V
16
30
A
GATE
Output voltage
VOUT = 12 V
23.5
25.8
28
V
Clamp voltage
Inject 10
A into GATE, measure V(GATE – VCC)
12
13.9
15.5
V
Sourcing current
VGATE = 12 V
20
30
40
A
Fast turnoff, VGATE = 14 V
0.5
1
1.4
A
Sinking current
Sustained, VGATE = 4 V to 23 V
6
11
20
mA
In inrush current limit, VGATE = 4 V to 23 V
20
30
40
A
Pulldown resistance
Thermal shutdown
14
20
26
k
Ω
Fast-turnoff duration
8
13.5
18
s
Turn on delay
VCC rising to GATE sourcing, tprr50-50, See Figure 2
100
250
s
SENSE
Input bias current
VSENSE = 12 V, sinking current
30
40
A
Current limit threshold
VOUT = 12 V
22.5
25
27.5
mV
VOUT = 7 V, RPROG = 50 k
10
12.5
15
Power limit threshold
mV
VOUT = 2 V, RPROG = 25 k
10
12.5
15
Fast-trip threshold
52
60
68
mV
Fast-turnoff duration
8
13.5
18
s
Fast-turnoff delay
V(VCC – SENSE) = 80 mV, CGATE = 0 pF, tprf50–50, See Figure 3
200
ns
OTSD
Threshold, rising
130
140
°C
Hysteresis(2)
10
°C
(2)
These parameters are provided for reference only and do not constitute part of TI
’s published device specifications for purposes of TI’s
product warranty.
Figure 1. tpff50–90 Timing Definition
Figure 2. tprr50–50 Timing Definition
4
Copyright
2011, Texas Instruments Incorporated
Product Folder Link(s): TPS24710 TPS24711 TPS24712 TPS24713
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