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参数资料
| 型号： | TPS53124PW |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, PDSO28 |
| 封装： | GREEN, PLASTIC, TSSOP-28 |
| 文件页数： | 18/22页 |
| 文件大小： | 656K |
| 代理商： | TPS53124PW |
www.ti.com ..................................................................................................................................................... SLUS825B – FEBRUARY 2008 – REVISED MAY 2008
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range, , VIN = 12 V, (unless otherwise noted)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
UVLO
Wake up
3.7
4
4.3
VUV5VFILT V5FILT UVLO threshold
V
Hysteresis
0.2
0.3
0.4
LOGIC Threshold
VENH
ENx H-level input voltage
EN 1/2
2
V
VENL
ENx L-level input voltage
EN 1/2
0.3
Current Sense
ITRIP
TRIP source current
VTRIPx = 0.1 V, TA = 25°C
8.5
10
11.5
A
TCITRIP
ITRIP temperature coefficient
On the basis of 25
°C
4000
ppm/
°C
(VTRIPx-GND - VPGNDx-LLx) voltage,VTRIPx-GND = 60
-10
0
10
mV, TA = 25°C
VOCL(off)
OCP compensation offset
(VTRIPx-GND - VPGNDx-LLx) voltage, VTRIPx-GND = 60
-15
15
mV
Current limit threshold setting
VR(trip)
VTRIPx-GND voltage
30
200
range
Output Undervoltage and Overvoltage Protection
VOVP
Output OVP trip threshold
OVP detect
110%
115%
120%
TOVPDEL
Output OVP prop delay
1.5
s
UVP detect
65%
70%
75%
VUVP
Output UVP trip threshold
Hysteresis (recovery < 20
s)
10%
TUVPDEL
Output UVP delay
17
30
40
s
TUVPEN
Output UVP enable delay
1.2
2
2.5
ms
Thermal Shutdown
Shutdown temperature(1)
150
TSDN
Thermal shutdown threshold
°C
Hysteresis(1)
20
(1)
Ensured by design. Not production tested.
Copyright 2008, Texas Instruments Incorporated
5
Product Folder Link(s): TPS53124
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