參數(shù)資料
型號: TEA2261
廠商: 意法半導(dǎo)體
英文描述: Switch Mode Power Supply Controller(開關(guān)模式電源控制器)
中文描述: 開關(guān)電源控制器(開關(guān)模式電源控制器)
文件頁數(shù): 4/9頁
文件大?。?/td> 120K
代理商: TEA2261
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
I
OUT
+
I
OUT
-
I
OUT
+
I
OUT
-
F
oper
V
IN
R
OSC
C
OSC
C1
C2
C2/C1
T
amb
Parameter
Min.
V
CC
stop
Typ.
12
Max.
V
CC
max
1.2
2.0
0.6
0.6
100
4.5
150
4.7
Unit
V
A
A
A
A
kHz
V
k
nF
μ
F
μ
F
Power Supply
Positive Output Current (source current)
Negative Output Current (sink current)
Average Positive Output Current
Average Negative Output Current
Operating Frequency
Input Pulses Amplitude (Pin 2)
Oscillator Resistor Range
Oscillator Capacitor Range
Soft-starting Capacitor Range
Overload Integration Capacitor
Ratio C2/C1 (C2 must be
C1)
Operating Ambient Temperature
10
1.5
20
0.47
0.047
0.047
1
-20
2.5
1
1
70
o
C
2
ELECTRICAL CHARACTERISTICS
(T
amb
= 25
o
C, V
CC
=12V, unless otherwise specified)
Symbol
POWER SUPPLY
V
CC(start)
V
CC(stop)
Hyst V
CC
I
CC(start)
I
CC
V
CC(max)
I
CC(over)
OSCILLATOR / PWM SECTION
Delta F
F
t
ON
max
Maximum Duty Cycle in Primary Regulation Mode
ERROR AMPLIFIER SECTION
A
VO
Open Loop Gain
F
ug
Unity Gain Frequency
I
SC
Short Circuit Output Current (Pin 7 connected to ground)
I
BE
E Input Bias Current (Pin 6)
V
REF
Internal Voltage Reference (connected to error amplifier input and
not directly accessible)
INPUT SECTION
V
IN
IN Input Threshold (Pin 2)
V
IS
IS Input Threshold (Pin 1)
I
BIN
IN Input Bias Current
I
BIS
IS Input Bias Current
CURRENT LIMITATION SECTION
V
IM1
First Current Limitation Threshold
V
IM2
Second Current Limitation Threshold
V
IM
Thresholds Difference V
IM2
- V
IM1
V
C2
Lock-out Threshold on Pin C2
I
DC2
Capacitor C2 Discharge Current
I
CC2
Capacitor C2 Charge Current
I
BI(max)
Maximum Input Bias Current (Pin 3)
Parameter
Min.
Typ.
Max.
Unit
Starting Voltage (V
CC
increasing)
Stopping Voltage (V
CC
decreasing)
Hysteresis (V
CC(start)
- V
CC(Stop)
)
Starting Current (V
CC
= 9V)
Supply Current (V
CC
= 12V)
Overvoltage Threshold on V
CC
Supply Current after Overvoltage Detection (V
CC
= 17V)
9.3
6.4
2.4
10.3
7.4
2.9
0.7
7.5
15.7
35
11.3
8.4
V
V
V
1.4
15
mA
mA
V
mA
15
26
42
Accuracy (R
OSC
= 68k
, C
OSC
= 1nF)
10
%
50
60
70
%
75
550
2
0.08
2.49
dB
kHz
mA
μ
A
V
2.34
2.64
0.6
0.85
0.15
0.3
0.4
1.2
V
V
μ
A
μ
A
558
837
600
900
300
2.55
10
45
0.2
642
963
mV
mV
mV
V
μ
A
μ
A
μ
A
2.25
2.85
2
TEA2260 - TEA2261
4/9
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