參數(shù)資料
型號(hào): TPS51211DSCT
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 314 kHz SWITCHING FREQ-MAX, PDSO10
封裝: PLASTIC, SON-10
文件頁數(shù): 22/26頁
文件大?。?/td> 674K
代理商: TPS51211DSCT
TPS51211
www.ti.com
SLUSAA7 – NOVEMBER 2010
ELECTRICAL CHARACTERISTICS (continued)
over recommended free-air temperature range, V5IN=5V. (Unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PROTECTION: CURRENT SENSE
ITRIP
TRIP source current
VTRIP = 1V, TA = 25°C
9
10
11
mA
TRIP current temperature
TCITRIP
On the basis of 25°C (3)
4700
ppm/°C
coeffficient
Current limit threshold setting
VTRIP
VTRIP-GND Voltage
0.2
3
V
range
VTRIP = 3.0 V
375
mV
VOCL
Current limit threshold
VTRIP = 0.2 V
25
Positive
3
15
Auto zero cross adjustable
VAZCADJ
mV
range
Negative
–15
–3
PROTECTION: UVP AND OVP
VOVP
OVP trip threshold
OVP detect
115%
120%
125%
tOVPDEL
OVP propagation delay time
50-mV overdrive
1
ms
VUVP
Output UVP trip threshold
UVP detect
65%
70%
75%
Output UVP propagation delay
tUVPDEL
0.8
1
1.2
ms
time
tUVPEN
Output UVP enable delay time
From Enable to UVP workable
1.0
1.2
1.4
ms
UVLO
Wake up
4.20
4.38
4.50
VUVV5IN
V5IN UVLO threshold
V
Shutdown
3.7
3.93
4.1
THERMAL SHUTDOWN
Shutdown temperature(3)
145
TSDN
Thermal shutdown threshold
°C
Hysteresis(3)
10
(3)
Ensured by design. Not production tested.
Copyright 2010, Texas Instruments Incorporated
5
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