參數(shù)資料
型號(hào)： TPS40090QPWRQ1
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO24
封裝： GREEN, PLASTIC, TSSOP-24
文件頁(yè)數(shù)： 17/23頁(yè)
文件大?。?/td> 309K
代理商： TPS40090QPWRQ1
SLUS845C
– JUNE 2008 – REVISED MAY 2011
ABSOLUTE MAXIMUM RATING
over operating free-air temperature range unless otherwise noted
(1)
EN/SYNC, VIN,
16.5 V
VIN
Input voltage range
CS1, CS2, CS3, CS4, CSCN, DROOP, FB, GNDS, ILIM, VOUT
–0.3 V to 6 V
VOUT
Output voltage range
REF, COMP, DIFFO, PGOOD, SS, RT, PWM1, PWM2, PWM3, PWM4, BP5
–0.3 V to 6 V
TJ
Operating virtual-junction temperature range
–40°C to 125°C
Tstg
Storage temperature
–65°C to 150°C
ESD
Electrostatic discharge protection, Human-Body Model (HBM)
1500 V
(1)
Stresses beyond those listed under
"absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under
"recommended operating
conditions
" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
MIN
MAX
UNIT
VIN
Input voltage
4.5
15
V
TJ
Operating virtual-junction temperature
–40
125
°C
ELECTRICAL CHARACTERISTICS
TJ = –40°C to 125°C, VIN = 12 V, R(RT) = 64.9 k, TJ = TA (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT SUPPLY
VIN
Operating voltage range, VIN
4.5
15
VIN
UVLO
Rising VIN
4.25
4.45
V
VIN
UVLO(1)
Falling VIN
4.1
4.35
IIN
Shutdown current, VIN
2
10
μA
IIN
Quiescent current switching
Four channels, 400 kHz each, no load
4
6
mA
OSCILLATOR/SYNCHRONIZATION
Phase frequency accuracy
Four channels, RRT = 64.9 k
350
415
455
Phase frequency set range(1)
Four channels
100
1200
kHz
Synchronization frequency range(1)
Four channels
800
9600
Synchronization input threshold(1)
Four channels
VBP5/2
V
PWM
4-phase operation
87.5
Maximum duty cycle per channel
%
2- and 3-phase operation
83.3
Minimum duty cycle per channel(1)
0
%
Minimum controllable on-time(1)
50
100
ns
ERROR AMPLIFIER
Feedback input voltage
0.690
0.700
0.707
V
Feedback input bias current
VFB = 0.7 V
25
150
nA
VOH
High-level output voltage
ICOMP = –1 mA
2.5
2.9
V
VOL
low-level output voltage
ICOMP = 1 mA
0.5
0.8
GBW
Gain bandwidth(1)
5
MHz
AVOL
Open loop gain(1)
90
dB
SOFT START
ISS
Soft-start source current
3.5
5
6
μA
VSS
Soft-start clamp voltage
0.95
1.00
1.05
V
(1)
Specified by design
Copyright
2008–2011, Texas Instruments Incorporated
3
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