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參數(shù)資料
| 型號(hào)： | TPS92001DGKR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | FLUORESCENT LIGHT CONTROLLER, 110 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 13/19頁 |
| 文件大?。?/td> | 917K |
| 代理商： | TPS92001DGKR |
www.ti.com
SLUSA24A – FEBRUARY 2010 – REVISED NOVEMBER 2010
ELECTRICAL CHARACTERISTICS
VVDD = 12 V, CREF = 0.47-mF, TA = TJ (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY SECTION
VDD
Supply clamp
IVDD = 10 mA
16
17.5
19
V
IVDD
Supply current
No Load
600
900
A
IVDD
Supply current startup(1)
110
A
TPS92001
110
125
Supply current standby
VVDD = Start threshold – 300 mv
A
TPS92002
130
170
UNDERVOLTAGE LOCKOUT SECTION
TPS92001
9.4
10.4
Start threshold
TPS92002
14.0
15.6
V
TPS92001
1.65
UVLO hysteresis
TPS92002
6.2
VOLTAGE REFERENCE SECTION
Output voltage
IREF = 0 mA
4.75
5
5.25
V
Line regulation
10 V
≤ VVDD ≤ 15 V
2
mV
Load regulation
0 mA
≤ IREF ≤ 5 mA
2
mV
COMPARATOR SECTION
ICS
Current sense
Output OFF
-100
nA
Comparator threshold
0.9
0.95
1
V
GDDLY
GD propagation delay (No Load)
0.8 V
≤ VCS ≤ 1.2 V at TR = 10 ns
50
100
ns
SOFT START SECTION
VVDD = 16 V, VSS = 0 V, -40°C ≤ TA ≤ 85°C
-4.9
-7.0
-9.1
A
ISS
Soft-start current
VVDD = 16 V, VSS = 0 V, -40°C ≤ TA ≤ 85°
-4.9
-7.0
-10.0
A
VSS
Low-level output voltage
VVDD = 7.5 V, ISS = 200 A
0.2
V
Shutdown threshold
0.44
0.48
0.52
V
OSCILLATOR SECTION
RRTC = 10 kΩ, RRTD = 4.32 kΩ, CCT =
Switching frequency
90
100
110
kHz
820pF
Frequency change with voltage
10 V
≤ VVDD ≤ 15 V
0.1
%/V
VCT(peak)
Timing capacitor peak voltage
3.33
V
VCT(valley) Timing capacitor valley voltage
1.67
V
VCT(p-p)
Timing capacitor peak-to-peak voltage
1.54
1.67
1.80
V
GATE DRIVE SECTION
Power driver VSAT low
IGD = 80 mA (dc)
0.8
1.5
V
Power driver VSAT high
IGD = -40 mA (dc), (VVDD – VGD)
0.8
1.5
V
Power driver low-voltage during UVLO
IGD = 20 mA (dc)
1.5
V
DMIN
Minimum duty cycle
VCS = 2 V
0%
DMAX
Maximum duty cycle
70%
tRISE
Rise Time
CGD = 1nF
35
ns
tFALL
Fall Time
CGD = 1nF
18
ns
(1)
Specified by design. Not production tested.
Copyright 2010, Texas Instruments Incorporated
3
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