參數(shù)資料
型號(hào)： TPS40009DGQRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PDSO10
封裝： 3.05 X 4.98 MM, GREEN, PLASTIC, MSOP-10
文件頁數(shù)： 22/28頁
文件大?。?/td> 677K
代理商： TPS40009DGQRG4
TPS40007
TPS40009
SLUS589B NOVEMBER 2003 REVISED FEBRUARY 2005
3
www.ti.com
ELECTRICAL CHARACTERISTICS
temperature range, TA = 40_C to 85_C, VDD = 5.0 V, TA = TJ; all parameters measured at zero power dissipation
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT SUPPLY
VDD
Input voltage range
2.25
5.5
V
VHGATE High-side gate voltage
VBOOT VSW
6
V
Shutdown current
SS/SD = 0 V,
Outputs off
0.25
0.45
IDD
Quiescent current
FB = 0.8 V
1.4
2.0
mA
IDD
Switching current
No load at HDRV/LDRV
1.5
4.0
mA
UVLO
Minimum on-voltage
1.95
2.05
2.15
V
Hysteresis
80
150
220
mV
OSCILLATOR
fOSC
Oscillator frequency
TPS40007
2.25 V
≤ VDD ≤ 5.00 V
250
300
350
kHz
fOSC
Oscillator frequency
TPS40009
2.25 V
≤ VDD ≤ 5.00 V
500
600
700
kHz
VRAMP Ramp voltage
VPEAK VVALLEY
0.80
0.93
1.07
V
Ramp valley voltage
0.24
0.31
0.44
V
PWM
Maximum duty cycle(2)
TPS40007
FB = 0 V,
VDD = 3.3 V
87.0%
94.0%
Maximum duty cycle(2)
TPS40009
FB = 0 V,
VDD = 3.3 V
83.0%
93.0%
Minimum duty cycle
0%
Minimum controllable pulse width(1)(3)
100
150
ns
ERROR AMPLIFIER
VFB
FB input voltage
Line,
Temperature
0.690
0.700
0.711
V
VFB
FB input voltage
TA = 25°C
0.693
0.700
0.707
V
IFB
FB input bias current
30
130
nA
VOH
High-level output voltage
FB = 0 V,
IOH = 1.0 mA
2.0
2.5
V
VOL
Low-level output voltage
FB =VDD,
IOL = 0.5 mA
0.08
0.15
V
IOH
Output source current
COMP = 0.7 V,
FB = GND
2
6
mA
IOL
Output sink current
COMP = 0.7 V,
FB = VDD
3
8
mA
GBW
Gain bandwidth(1)
5
10
MHz
AOL
Open loop gain
55
85
dB
SHORT CIRCUIT CURRENT PROTECTION
ISINK
ILIM sink current
VDD = 5 V
11
15
19
A
ISINK
ILIM sink current
VDD = 2.25 V
9.5
13.0
16.5
A
VOS
Offset voltage SW vs ILIM(1)
2.25 V
≤ VDD ≤ 5.00
20
0
20
mV
VILIM
Input voltage range
2
VDD
V
tON
Minimum HDRV pulse time in overcurrent
VDD = 3.3 V
220
330
ns
SW leading edge blanking pulse in over-
current detection(1)
100
ns
tSS
Soft-start capacitor cycles as fault timer(1)
6
(1)
Ensured by design. Not production tested.
(2)
Derate the maximum duty cycle by 3% for VDD < 3 V
(3)
Operating at PWM on-times of less than 100 ns could lead to overlap between HDRV and LDRV pulses.
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TPS40020PWPG4 功能描述:DC/DC 開關(guān)控制器 Enh Lo Input Freq Sync. Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
TPS40020PWPR 功能描述:DC/DC 開關(guān)控制器 Enh Lo Input Freq Sync. Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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