TEA2164 Просмотр технического описания (PDF) - STMicroelectronics
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TEA2164 Datasheet PDF : 15 Pages
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TEA2164
RECOMMANDED OPERATING CONDITIONS
Symbol
VCC
V–
VCC – V–
Io ut+
Iout–
Fsw
Ro
Co
C1
C2
Vin
Toper
Parameter
Positive Power Supply
Negative Power Supply (absolute value) (note 1)
Total Power Supply
Positive Output Current
Negative Output Current
Switching Frequency
Oscillator Resistor Range
Oscillator Capacitor Range
Starting Oscillator Capacitor Range
Repetitive Overload Protection Capacitor
Input Pulses Amplitude (peak) (derivated pulses - time constant = 1 µs)
Operating Ambiant Temperature
Min. Typ. Max. Unit
10 14 V
0
5
V
18 V
1.2 A
1.7 A
50 khz
30
150 kΩ
470
2700 pF
0.1
4.7 µF
1
22 µF
0.5
1
V
– 20
70 °C
V
-
CC
12 13
TEA2164 14
45 1
IB > 0
IB < 0
V
-
CC
IB < 0
12 13
TEA2164
45
IB
14 I
1
IB < 0
capacitive
coupling
ELECTRICAL OPERATING CHARACTERISTICS
Tamb = 25oC, VCC = 10V, VCC- = 0V, potentials referenced to ground (Pin 1)
(unless otherwise specified)
Symbol
Parameter
Min. Typ. Max. Unit
POWER SUPPLY
VCC (start)
VCC (stop)
∆VCC
Vccmax
Iccstart
Starting Voltage (VCC increasing)
Stopping Voltage (VCC decreasing)
Hysteresis (VCC start – VCC stop)
Overvoltage Lock-out
Starting Positive Supply Current
CURRENT LIMITATION AND PROTECTION (pin 11)
8
9
9.6
V
5
6.2
7.4
V
2
2.8
3.5
V
14.8 15.5 16.2
V
0.5
0.8
1.5
mA
VCM1
Pulse by Pulse Current Limitation Threshold
VCM2
Current Monitoring 2nd Threshold
∆VCM
∆VCM = VCM2 – VCM1
REPETITIV E OVERCURRENT PROTECTION
720 840 970 mV
1200 1350 1500 mV
300 500 700 mV
VCM3
VCM3-VCM1
VC2
I3 disch
I3 ch.
Repetitive Overcurrent Threshold (pin 11)
(VCM3-VCM1)
Lock-out Voltage on Pin 3
Capacitor C2 Discharge Current (synchronized mode)
Capacitor C2 Charge Current
700 900 1100 mV
– 20
50
130 mV
2.4
3
3.6
V
10
20
30
µA
50
80
110
µA
OSCILLATOR, MAX DUTY CYCLE, SYNCHRONIZATION
To
Ton(max)
Oscillator Initial Accuracy RT = 50 K, CT = 1 nF
Maximum Duty Cycle (Tsyn = 1.05 To)
19.3
21
22.7
µs
60
70
85
%
4/15
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