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参数资料
| 型号： | TPS40050PWP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | GREEN, PLASTIC, HTSSOP-16 |
| 文件页数： | 31/36页 |
| 文件大小： | 648K |
| 代理商： | TPS40050PWP |
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TPS40050
TPS40051
TPS40053
SLUS540F DECEMBER 2002 REVISED JUNE 2004
www.ti.com
4
ELECTRICAL CHARACTERISTICS
TA = 40°C to 85°C, VIN = 24 Vdc, RT = 90.9 k, IKFF = 150 A, fSW = 500 kHz, all parameters at zero power dissipation
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CURRENT LIMIT
ISINK
Current limit sink current
8.6
10.0
11.5
A
Propagation delay to output
VILIM = 23.7 V, VSW = (VILIM 0.5 V)
300
Propagation delay to output
VILIM = 23.7 V, VSW = (VILIM 2 V)
200
ns
tON
Switch leading-edge blanking pulse time(1)
100
ns
tOFF
Off time during a fault
7
cycles
VILIM = 23.6 V,
TA = 25°C
125
30
VOS
Offset voltage SW vs. ILIM
VILIM = 23.6 V,
0
°C ≤ TA ≤ 85°C
140
75
15
mV
VOS
Offset voltage SW vs. ILIM
VILIM = 23.6 V,
40
°C ≤ TA ≤ 85°C
140
10
mV
OUTPUT DRIVER
tLRISE
Low-side driver rise time
CLOAD = 2200 pF
48
96
tLFALL
Low-side driver fall time
CLOAD = 2200 pF
24
48
ns
tHRISE High-side driver rise time
CLOAD = 2200 pF, (HDRV SW)
48
96
ns
tHFALL
High-side driver fall time
CLOAD = 2200 pF, (HDRV SW)
36
72
VOH
High-level ouput voltage, HDRV
IHDRV = 0.1 A (HDRV SW)
BOOST
1.5 V
BOOST
1.0 V
VOL
Low-level ouput voltage, HDRV
IHDRV = 0.1 A (HDRV SW)
0.75
V
VOH
High-level ouput voltage, LDRV
ILDRV = 0.1 A
BP10
1.4 V
BP10
1.0 V
V
VOL
Low-level ouput voltage, LDRV
ILDRV = 0.1 A
0.5
Minimum controllable pulse width
100
150
ns
SS/SD SHUTDOWN
VSD
Shutdown threshold voltage
Outputs off
90
125
150
mV
VEN
Device active threshold voltage
190
210
245
mV
BOOST REGULATOR
VBOOST Output voltage
VIN = 24.0 V
31.5
32.5
33.5
V
RECTIFIER ZERO CURRENT COMPARATOR (TPS40050/TPS40053 SS ONLY)
VSW
Switch voltage
LDRV output OFF
5.5
0.5
4.5
mV
SW NODE
ILEAK
Leakage current(1)
25
A
THERMAL SHUTDOWN
TSD
Shutdown temperature(1)
165
°C
TSD
Hysteresis(1)
20
°C
UVLO
VUVLO KFF programmable threshold voltage
RKFF = 28.7 k
6.9
7.5
7.9
V
(1)
Ensured by design. Not production tested.
(2)
IKFF increases with SYNC frequency, IKFF decreases with maximum duty cycle
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