參數(shù)資料
型號: TPS54980PWP
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
封裝: GREEN, PLASTIC, HTSSOP-28
文件頁數(shù): 16/21頁
文件大?。?/td> 568K
代理商: TPS54980PWP
TPS54980
SLVS452A FEBRUARY 2003 REVISED FEBRUARY 2005
www.ti.com
4
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ERROR AMPLIFIER
Error amplifier open loop voltage gain
1 k
COMP to AGND(1)
90
110
dB
Error amplifier unity gain bandwidth
Parallel 10 k
, 160 pF COMP to AGND(1)
3
5
MHz
Error amplifier common mode input voltage
range
Powered by internal LDO(1)
0
VBIAS
V
Input bias current, VSENSE
VSENSE = Vref
60
250
nA
Output voltage slew rate (symmetric), COMP
1.0
1.4
V/
s
PWM COMPARATOR
PWM comparator propagation delay time,
PWM comparator input to PH pin (excluding
deadtime)
10-mV overdrive(1)
70
85
ns
ENABLE
Enable threshold voltage, ENA
0.82
1.20
1.40
V
Enable hysteresis voltage, ENA
0.03
V
Falling edge deglitch, ENA(1)
2.5
s
Leakage current, ENA
VI = 3.6 V
1
A
POWER GOOD
Power good threshold voltage
VSENSE falling
90
%Vref
Power good hysteresis voltage(1)
3
%Vref
Power good falling edge deglitch(1)
35
s
Output saturation voltage, PWRGD
I(sink) = 2.5 mA
0.18
0.3
V
Leakage current, PWRGD
VI = 3.6 V
1
A
CURRENT LIMIT
Current limit trip point
VI = 3.6 V Output shorted(1)
11
15
A
Current limit leading edge blanking time
100
ns
Current limit total response time
200
ns
THERMAL SHUTDOWN
Thermal shutdown trip point(1)
135
150
165
°C
Thermal shutdown hysteresis(1)
10
°C
OUTPUT POWER MOSFETS
rDS(on) Power MOSFET switches
VI = 3.6 V(4)
14
28
m
rDS(on) Power MOSFET switches
VI = 3 V(4)
15
30
m
TRACKIN
Input offset, TRACKIN
VSENSE = TRACKIN = 1.25 V
1.5
mV
Input voltage range, TRACKIN
See Note 1
0
Vref
V
(1) Specified by design
(2) Static resistive loads only
(3) Specified by the circuit used in Figure 9
(4) Matched MOSFETs low-side rDS(on) production tested, high-side rDS(on) specified by design
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