TEA1541 Ver la hoja de datos (PDF) - Philips Electronics
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TEA1541 Datasheet PDF : 19 Pages
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Philips Semiconductors
SMPS control IC with
synchronization function
Product specification
TEA1541
10 CHARACTERISTICS
Tamb = 25 °C; VCC = 15 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing
into the IC.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Start-up current source (pin VIN)
IVIN(min)
VCC(VIN)trip
IVIN(max)
IVIN
Vbd
M-level
minimum supply current drawn from
pin VIN
supply voltage for pin VIN current trip
level
VCC < VCC(trip)(VIN),
VVIN > 100 V
VVIN > 100 V
maximum supply current drawn from
pin VIN
supply current drawn from pin VIN
breakdown voltage
VCC = 10 V;
VVIN > 100 V
after start-up;
VCC > VCC(start);
VVIN > 100 V
mains-dependent operation-enabling
level
MUVLO
mains undervoltage lock-out level
VCC management (pin VCC)
VCC(start)
VCC(UVLO)
VCC(hys)
ICC(h)
ICC(l)
ICC(restart)
ICC(oper)
start-up voltage
undervoltage lock-out
hysteresis voltage
charging current (high)
charging current (low)
restart current
supply current under normal
operation
VCC(start) − VCC(UVLO)
VVIN > 100 V;
VCC < VCC(trip)(VIN)
VVIN > 100 V;
VCC(trip)(VIN) < VCC
< VCC(UVLO)
VVIN > 100 V; VCC(UVLO)
< VCC < VCC(start)
no load on pin DRIVER
Primary current simulation
αPCS
primary current simulation factor
Demagnetization management (pin DEM)
Vth(DEM)
Iprot(DEM)
Vclamp(DEM)(neg)
Vclamp(DEM)(pos)
tsuppr
Vsc(prot)(DEM)
demagnetization comparator
threshold voltage
demagnetization current
negative clamp voltage
positive clamp voltage
suppression time of transformer
ringing at start of secondary stroke
short-circuit protection voltage
I(DEM) = −150 µA
I(DEM) = 250 µA
300
0.5
1.25
−
550
33
25
10.8
8.5
2.1
−
−1.6
−1.25
−
−
70
−50
−0.5
0.55
1.1
−90
400
0.75
1.6
100
−
37
28.5
11.4
9.0
2.4
−0.25
−1.2
−1.0
1.6
0.9
100
−
−0.25
0.7
1.5
−50
500 µA
1.0 V
1.95 mA
300 µA
−
V
40
V
33
V
12
V
9.5 V
2.7 V
−
mA
−0.75 mA
−0.75 mA
−
mA
−
A.s/V
130 mV
−10 nA
−0.05 V
0.85 V
1.9 µs
−10 mV
2003 Aug 11
12
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