TEA5170
ELECTRICAL CHARACTERISTICS (TA = 25oC, VCC = 12V, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
OSCILLATOR
TA
TB
∆FOSC
(T)
∆FOSC
(VCC)
Free Period
Frequency drift due to ambient
temperature variation from 0oC to 70oC
FOSC (70oC) − FOSC (0oC)
70oC x FOSC (25oC)
Frequency drift due to VCC variation
from 5V to 12V
FOSC (12V) − FOSC (5V)
7V x FOSC (12V)
RT = 100kΩ ± 0%
CT = 1.2nF ± 0%, Vcc = 12V
RT = 100kΩ ± 0%
CT = 560pF ± 0%, Vcc = 12V
RT = 100kΩ ± 0%
CT = 1.2nF ± 0%, Vcc = 12V
RT = 100kΩ ± 0%
CT = 1.2nF ± 0%
60.40 65.60 70.80 µS
29.18 31.70 34.22 µS
0.01
%/°C
0.07
%/V
ERROR VOLTAGE AMPLIFIER (VCC = 12V)
Ibias Input Bias Current
Gvol Voltage Gain
GB
Gain Bandwidth
Slew Rate
Ein = 2V
0 0.2 1 µA
80
dB
2
MHz
2
V/µs
INTERNAL VOLTAGE REFERENCE
VREF
Voltage Reference
∆VREF (VCC)
∆VREF (T)
Line
Regulation
VREF
(12V) −
7V
VREF (5V)
VREF drift with temperature
VREF (70oC) − VREF (0oC)
70oC
Using the voltage error
amplifier as a follower
VCC = 5V to 12V
TA = 0°C to 70°C
1.9 2 2.1 V
– 3 0.4
0.2
3 mV/V
mV/°
TON MIN
TONMIN A
Minimum Duty Cycle
TONMIN B Minimum Duty Cycle
Ct = 1.2nF ± 0%
Rt = 100kΩ ± 0%
Ct = 560pf ± 0%
Rt = 100kΩ ± 0%
1.77 2.53 3.29 µs
1.04 1.49 1.94 µs
POWER OUTPUT STAGE
VPOUTH
VPOUTL
ISINK
ISOURCE
Output High Level
Output Low Level
Sink Current
Source Current
SYNCHRONISATION
Iload = 1mA
Iload = – 1mA
VPOUT = 3V
VPOUT = 3V
6.3 6.9 7.5 V
0.5 0.8 1.1 V
30 60 190 mA
30 110 190 mA
Ftrig Max
Vtrig
Ttrigp
Wtrig +
Wtrig –
Maximum Synchro Frequency
Synchro Triggering Threshold
Synchro Triggering Pulse Width
Positive
Triggering
Window
Ttrig+ −
TO
TO
Negative
Triggering
Window
TO
− Ttrig−
TO
at VRT = 2.7Volt (fig 5)
CT = 1.2nF ± 0%
RT = 100kΩ ± 0%
CT = 1.2nF ± 0%
RT = 100kΩ ± 0%
64
2.7
800
kHz
3
V
nS
25 35 40 %
9 29 42 %
SOFT START
Icsf
*Csf Load Current
Donmax Maximum Duty Cycle
*Csf is a high impedance capacitor
Vcsf = 1V
Vcs > 2.5V, VCC = 12V
CT = 1.2nf ± 0%
RT = 100kΩ ± 0%
2.5 3.7 6 µA
60 78 95 %
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