參數(shù)資料
型號(hào)： TPS24701DGK
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PDSO8
封裝： GREEN, PLASTIC, MSOP-8
文件頁(yè)數(shù)： 23/29頁(yè)
文件大?。?/td> 1956K
代理商： TPS24701DGK
SLVSAL3B
– MARCH 2011 – REVISED MAY 2011
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
SENSE, VCC
2.5
18
Input voltage range
V
EN, PGb, OUT
0
18
Sink current
PGb
0
2
mA
TIMER
1
nF
External capacitance
GATE(1)
1
F
Operating junction temperature range, TJ
–40
125
°C
(1)
External capacitance tied to GATE should be in series with a resistor no less than 1 k
.
ELECTRICAL CHARACTERISTICS
–40°C ≤ TJ ≤ 125°C, VCC = 12 V, and VEN = 3 V.
All voltages referenced to GND, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
NOM
MAX
UNIT
VCC
UVLO threshold, rising
2.2
2.32
2.45
V
UVLO threshold, falling
2.1
2.22
2.35
V
UVLO hysteresis(1)
0.1
V
Enabled
― IOUT + IVCC + ISENSE
1
1.4
mA
Supply current
Disabled
― EN = 0 V, IOUT + IVCC + ISENSE
0.45
mA
EN
Threshold voltage, falling
1.2
1.3
1.4
V
Hysteresis(1)
50
mV
Input leakage current
0 V
≤ VEN ≤ 30 V
–1
0
1
A
Turnoff time
EN
↓ to VGATE < 1 V, CGATE = 33 nF
20
60
150
s
Deglitch time
EN
↑
8
14
18
s
Disable delay
EN
↓ to GATE ↓, CGATE = 0, tpff50–90, See Figure 1
0.1
0.4
1
s
PGb
Threshold
V(SENSE–OUT) rising, PGb going high
140
240
340
mV
Hysteresis(1)
Measured V(SENSE–OUT) falling, PGb going low
70
Output low voltage
Sinking 2 mA
0.11
0.25
V
Input leakage current
VPGb = 0 V, 30 V
–1
0
1
A
Delay (deglitch) time
Rising or falling edge
2
3.4
6
ms
TIMER
Sourcing current
VTIMER = 0 V
8
10
12
A
VTIMER = 2 V
8
10
12
A
Sinking current
VEN = 0 V, VTIMER = 2 V
2
4.5
7
mA
Upper threshold voltage
1.3
1.35
1.4
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
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
(1)
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.
Copyright
2011, Texas Instruments Incorporated
3
Product Folder Link(s): TPS24700 TPS24701
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