TEA2260 - TEA2261
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min.
Typ.
Max.
VCC max
1.2
Unit
V
VCC
Power Supply
VCC stop
12
IOUT
IOUT
IOUT
IOUT
+
Positive Output Current (source current)
Negative Output Current (sink current)
Average Positive Output Current
Average Negative Output Current
Operating Frequency
A
-
2.0
A
+
0.6
A
-
0.6
A
Foper
VIN
10
1.5
100
kHz
V
Input Pulses Amplitude (Pin 2)
Oscillator Resistor Range
2.5
4.5
ROSC
COSC
C1
20
150
kΩ
nF
µF
µF
Oscillator Capacitor Range
0.47
0.047
0.047
1
4.7
Soft-starting Capacitor Range
Overload Integration Capacitor
Ratio C2/C1 (C2 must be ≥ C1)
Operating Ambient Temperature
1
1
C2
C2/C1
Tamb
-20
70
oC
ELECTRICAL CHARACTERISTICS (Tamb = 25oC, VCC =12V, unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
POWER SUPPLY
VCC(start)
VCC(stop)
Hyst VCC
ICC(start)
ICC
Starting Voltage (VCC increasing)
Stopping Voltage (VCC decreasing)
Hysteresis (VCC(start) - VCC(Stop)
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
Starting Current (VCC = 9V)
1.4
15
mA
mA
V
Supply Current (VCC = 12V)
VCC(max)
ICC(over)
Overvoltage Threshold on VCC
15
26
Supply Current after Overvoltage Detection (VCC = 17V)
42
mA
OSCILLATOR / PWM SECTION
Delta F
Accuracy (ROSC = 68kΩ, COSC = 1nF)
10
60
%
%
F
tON max
Maximum Duty Cycle in Primary Regulation Mode
50
70
ERROR AMPLIFIER SECTION
AVO
Fug
Open Loop Gain
75
550
2
dB
kHz
mA
µA
V
Unity Gain Frequency
ISC
Short Circuit Output Current (Pin 7 connected to ground)
E Input Bias Current (Pin 6)
Internal Voltage Reference (connected to error amplifier input and
not directly accessible)
IBE
VREF
0.08
2.49
2.34
0.6
2.64
1.2
INPUT SECTION
VIN
VIS
IBIN
IBIS
IN Input Threshold (Pin 2)
0.85
0.15
0.3
V
V
IS Input Threshold (Pin 1)
IN Input Bias Current
IS Input Bias Current
µA
µA
0.4
CURRENT LIMITATION SECTION
VIM1
VIM2
∆VIM
VC2
First Current Limitation Threshold
558
837
600
900
300
2.55
10
642
963
mV
mV
mV
V
Second Current Limitation Threshold
Thresholds Difference VIM2 - VIM1
Lock-out Threshold on Pin C2
Capacitor C2 Discharge Current
Capacitor C2 Charge Current
2.25
2.85
IDC2
µA
µA
µA
ICC2
45
IBI(max)
Maximum Input Bias Current (Pin 3)
0.2
4/9
STMICROELECTRONICS [ ST ]
