TEA2262 Просмотр технического описания (PDF) - STMicroelectronics
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TEA2262 Datasheet PDF : 9 Pages
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TEA2262
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
VCC(max)
ICC(over)
Starting Voltage (VCC increasing)
Stopping Voltage (VCC decreasing)
Hysteresis (VCC(start) - VCC(Stop))
Starting Current (VCC = 9V)
Supply Current (VCC = 12V)
Overvoltage Threshold on VCC
Supply Current after Overvoltage Detection (VCC = 17V)
OSCILLATOR / PWM SECTION
9.5 11.8 13
V
7
8.5
9.5
V
2.7
3.3
3.7
V
0.5
mA
6.5
mA
15 15.7
V
35
mA
∆F
F
Accuracy (ROSC = 68kΩ, COSC = 1nF)
tON max Maximum Duty Cycle in Primary Regulation Mode
ERROR AMPLIFIER SECTION
10
%
50
60
70
%
AVO
Fug
ISC
IBE
VREF
Open Loop Gain
Unity Gain Frequency
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)
75
dB
550
kHz
2
mA
0.08
µA
2.34 2.49 2.64
V
INPUT SECTION
VIN
IN Input Threshold (Pin 2)
VIS
IS Input Threshold (Pin 1)
IBIN
IN Input Bias Current
IBIS
IS Input Bias Current
CURRENT LIMITATION SECTION
0.6 0.85 1.2
V
0.15
V
0.3
µA
0.4
µA
VIM1
VIM2
∆VIM
VC2
IDC2
ICC2
IBI(max)
First Current Limitation Threshold
Second Current Limitation Threshold
Thresholds Difference VIM2 - VIM1
Lock-out Threshold on Pin C2
Capacitor C2 Discharge Current
Capacitor C2 Charge Current
Maximum Input Bias Current (Pin 3)
550 600 650 mV
780 840 900 mV
190 240 280 mV
2.25 2.55 2.85
V
10
µA
45
µA
0.2
µA
4/9
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