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參數(shù)資料
| 型號： | TC33025VOETR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 416K |
| 代理商： | TC33025VOETR |
3
TC33025
High Speed Double Ended Controller
TC33025-1 5/25/00
ELECTRICAL CHARACTERISTICS: VCC = 15V, RT = 3.65k, CT = 1.0nF, for typical values TA = +25°C, for
min/max values. TA is the operating ambient temperature range that applies [Note 2], unless otherwise noted.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
Error Amplifier Section
VIO
Input Offset Voltage
––
15
mV
IIB
Input Bias Current
–
0.6
3.0
A
IIO
Input Offset Current
–
0.1
1.0
A
AVOL
Open–Loop Voltage Gain
VO = 1.0V to 4.0V
60
95
–
dB
GBW
Gain Bandwidth Product
TJ = +25°C
4.0
8.3
–
MHz
CMRR
Common Mode Rejection Ratio
VCM = 1.5V to 5.5V
75
95
–
dB
PSRR
Power Supply Rejection Ratio
VCC = 10V to 30V
85
110
–
dB
ISOURCE
Output Current, Source
VO = 4.0V
0.5
3.0
–
mA
ISINK
Output Current, Sink
VO = 1.0V
1.0
3.6
–
VOH
Output Voltage Swing, High State
IO = – 0.5mA
4.5
4.75
5.0
V
VOL
Output Voltage Swing, Low State
IO = 1.0mA
0
0.4
1.0
SR
Slew Rate
6.0
12
–
V/
sec
PWM Comparator Section
IIB
Ramp Input Bias Current
––0.5
–5.0
A
DCMAX
Duty Cycle, Maximum
80
90
–
%
DCMIN
Duty Cycle, Minimum
––
0
VTH
Zero Duty Cycle Threshold
Voltage Pin 3(4) (Pin 7(9) = 0V)
1.1
1.25
1.4
V
tPLH (in/out)
Propagation Delay
Ramp Input to Output, TJ = +25°C
–
60
100
nsec
Soft-Start Section
ICHG
Charge Current
V Soft–Start = 0.5V
3.0
9.0
20
A
IDISCHG
Discharge Current
V Soft–Start = 1.5V
1.0
4.0
–
mA
Current Sense Section
IIB
Input Bias Current
Pin 9 (12) = 0V to 4.0V
––
15
A
VTH
Current Limit Comparator Threshold
0.9
1.0
1.10
V
VTH
Shutdown Comparator Threshold
1.25
1.40
1.55
tPLH (in/out)
Propagation Delay
Current Limit/Shutdown
to Output, TJ = +25°C
–
50
80
nsec
Output Section
VOL
Output Voltage Low State
ISINK = 20mA
–
0.25
0.4
V
ISINK = 200mA
–
1.2
2.2
VOH
Output Voltage High State
ISOURCE = 20mA
13
13.5
–
ISOURCE = 200mA
12
13
–
VOL (UVLO)
Output Voltage with UVLO Activated VCC = 6.0V, ISINK = 0.5mA
–
0.25
1.0
V
IL
Output Leakage Current
VC = 20V
–
100
500
A
tR
Output Voltage Rise Time
CL = 1.0nF, TJ = +25°C
–
30
60
nsec
tF
Output Voltage Fall Time
CL = 1.0nF, TJ = +25°C
–
30
60
nsec
Undervoltage Lockout Section
VTH (ON)
Start–Up Threshold
VCC Increasing
8.8
9.2
9.6
V
VH
UVLO Hysteresis Voltage
VCC Decreasing After Turn–On
0.4
0.8
1.2
V
Total Device
ICC
Power Supply Current
Start–Up
VCC = 8.0V
–
0.5
1.2
mA
Operating
–
25
35
Notes:
1. Maximum package power dissipation limits must be observed.
2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
TLOW = – 40°C for TC33025
THIGH = +105°C for TC33025
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