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参数资料
| 型号： | TPS40193DRCR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 360 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, SON-10 |
| 文件页数： | 33/38页 |
| 文件大小： | 707K |
| 代理商： | TPS40193DRCR |
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SLUS719C – MARCH 2007 – REVISED AUGUST 2010
www.ti.com
ELECTRICAL CHARACTERISTICS
TJ = –40°C to 85°C, VVDD= 12 Vdc, all parameters at zero power dissipation (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
REFERENCE
0°C
≤ TJ ≤ 85°C
588
591
594
VFB
Feedback voltage range
mV
-40°C
≤ TJ ≤ 85°C
585
591
594
INPUT SUPPLY
VVDD
Input voltage range
4.5
18.0
V
VENABLE = 3 V
2.5
4.0
mA
IVDD
Operating current
VENABLE = 0.6 V
45
70
mA
ON BOARD REGULATOR
V5VBP
Output voltage
VVDD > 6 V, I5VBP ≤ 10 mA
5.1
5.3
5.5
V
VDO
Regulator dropout voltage
VVDD - VBP5 , VVDD = 5 V, IBP5 ≤ 25 mA
350
550
mV
ISC
Regulator current limit threshold
50
mA
IBP5
Average current
50
OSCILLATOR
TPS40193
240
300
360
fSW
Switching frequency
kHz
TPS40192
500
600
700
VRMP
Ramp amplitude(1)
1
V
PWM
DMAX
Maximum duty cycle(1)
85%
tON(min)
Minimum controlled pulse(1)
110
HDRV off to LDRV on
50
ns
tDEAD
Output driver dead time
LDRV off to HDRV on
25
SOFT-START
tSS
Soft-start time
3
4
6
tSSDLY
Soft-start delay time
2
ms
tREG
Time to regulation
6
ERROR AMPLIFIER
GBWP
Gain bandwidth product(1)
7
10
MHz
AOL
DC gain(1)
60
dB
Input bias current (current out of FB
IIB
100
nA
pin)
IEAOP
Output source current
VFB = 0 V
1
mA
IEAOM
Output sink current
VFB = 2 V
1
SHORT CIRCUIT PROTECTION
tPSS(min)
Minimum pulse during short circuit(1)
250
ns
tBLNK
Blanking time(1)
60
90
120
tOFF
Off-time between restart attempts
30
50
ms
RCOMP(GND) = OPEN, TJ = 25°C
160
200
240
Short circuit comparator threshold
VILIM
RCOMP(GND) = 4 k, TJ = 25°C
80
100
120
voltage
mV
RCOMP(GND) = 12 k, TJ = 25°C
228
280
342
Short circuit threshold voltage on
VILIMH
TJ = 25°C
400
550
650
high-side MOSFET
(1)
Ensured by design. Not production tested.
4
Copyright 2007–2010, Texas Instruments Incorporated
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