参数资料
型号: TPS40052PWP
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封装: GREEN, PLASTIC, HTSSOP-16
文件页数: 28/33页
文件大小: 753K
代理商: TPS40052PWP
TPS40052
SLUS563C AUGUST 2003 REVISED FEBRUARY 2005
4
www.ti.com
ELECTRICAL CHARACTERISTICS
TA = 40°C to 85°C, VIN = 12 Vdc, RT = 90.9 k, fSW = 500 kHz, VEA_REF = 1.25 V 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
11.8
A
Propagation delay to output
VILIM = 11.7 V, VSW = (VILIM 0.5 V)
400
Propagation delay to output
VILIM = 11.7 V, VSW = (VILIM 2 V)
300
ns
tON
Switch leading-edge blanking pulse time(1)
100
ns
tOFF
Off time during a fault
7
cycles
VILIM = 11.6 V,
TA = 25°C
180
110
20
VOS
Offset voltage SW vs. ILIM
VILIM = 11.6 V,
0
°C ≤ TA ≤ 85°C
200
110
0
mV
VOS
Offset voltage SW vs. ILIM
VILIM = 11.6 V,
40
°C ≤ TA ≤ 85°C
200
110
30
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 = 12.0 V
19.5
20.5
21.5
V
SW NODE
ILEAK
Leakage current(1)
25
A
THERMAL SHUTDOWN
TSD
Shutdown temperature(1)
165
°C
TSD
Hysteresis(1)
20
°C
UVLO
Input voltage UVLO threshold
8.45
8.75
9.10
V
Input voltage UVLO hysteresis
1.0
V
(1)
Ensured by design. Not production tested.
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