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参数资料
| 型号： | TEA2260 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 2.5 A SWITCHING CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封装： | BATWING, PLASTIC, DIP-16 |
| 文件页数： | 7/11页 |
| 文件大小： | 127K |
| 代理商： | TEA2260 |
Obsolete
Product(s)
- Obsolete
Product(s)
TEA2261/0
5/11
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS (Tamb = 25
oC, V
CC =12V, unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
VCC
Power Supply
VCC stop
12
VCC max
V
IOUT+
Positive Output Current (source current)
1.2
A
IOUT-
Negative Output Current (sink current)
2.0
A
IOUT+
Average Positive Output Current
0.6
A
IOUT-
Average Negative Output Current
0.6
A
Foper
Operating Frequency
10
100
kHz
VIN
Input Pulses Amplitude (Pin 2)
1.5
2.5
4.5
V
ROSC
Oscillator Resistor Range
20
150
k
COSC
Oscillator Capacitor Range
0.47
4.7
nF
C1
Soft-starting Capacitor Range
0.047
1
F
C2
Overload Integration Capacitor
0.047
1
F
C2/C1
Ratio C2/C1 (C2 must be
≤ C1)
1
Tamb
Operating Ambient Temperature
-20
70
oC
Symbol
Parameter
Min.
Typ.
Max.
Unit
POWER SUPPLY
VCC(start) Starting Voltage (VCC increasing)
9.3
10.3
11.3
V
VCC(stop) Stopping Voltage (VCC decreasing)
6.4
7.4
8.4
V
Hyst VCC Hysteresis (VCC(start) - VCC(Stop))
2.4
2.9
V
ICC(start) Starting Current (VCC = 9V)
0.7
1.4
mA
ICC
Supply Current (VCC = 12V)
7.5
15
mA
VCC(max) Overvoltage Threshold on VCC
15
15.7
V
ICC(over) Supply Current after Overvoltage Detection (VCC = 17V)
26
35
42
mA
OSCILLATOR / PWM SECTION
Accuracy (ROSC = 68k, COSC = 1nF)
10
%
tON max Maximum Duty Cycle in Primary Regulation Mode
50
60
70
%
ERROR AMPLIFIER SECTION
AVO
Open Loop Gain
75
dB
Fug
Unity Gain Frequency
550
kHz
ISC
Short Circuit Output Current (Pin 7 connected to ground)
2
mA
IBE
E Input Bias Current (Pin 6)
0.08
A
VREF
Internal Voltage Reference (connected to error amplifier input
and not directly accessible)
2.34
2.49
2.64
V
INPUT SECTION
VIN
IN Input Threshold (Pin 2)
0.6
0.85
1.2
V
VIS
IS Input Threshold (Pin 1)
0.15
V
IBIN
IN Input Bias Current
0.3
A
IBIS
IS Input Bias Current
0.4
A
CURRENT LIMITATION SECTION
VIM1
First Current Limitation Threshold
558
600
642
mV
VIM2
Second Current Limitation Threshold
837
900
963
mV
DVIM
Thresholds Difference VIM2 - VIM1
300
mV
VC2
Lock-out Threshold on Pin C2
2.25
2.55
2.85
V
IDC2
Capacitor C2 Discharge Current
10
A
ICC2
Capacitor C2 Charge Current
45
A
IBI(max)
Maximum Input Bias Current (Pin 3)
0.2
A
Delta F
F
------------------------
1
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