TEA1533T Просмотр технического описания (PDF) - Philips Electronics
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TEA1533T Datasheet PDF : 24 Pages
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Philips Semiconductors
GreenChipTMII SMPS control IC
Product specification
TEA1533T; TEA1533AT
SYMBOL
PARAMETER
CONDITIONS
Vvco(max)
peak voltage on pin Isense, where
the frequency is equal to fosc(l)
Duty cycle control (pin CTRL)
VCTRL(min)
minimum voltage on pin CTRL for
maximum duty cycle
VCTRL(max)
maximum voltage on pin CTRL for
minimum duty cycle
Iprot(CTRL)
protection current on pin CTRL
Burst mode standby (pin CTRL)
VCTRL = 1.5V
Vth(burst)(on)
burst mode standby active
threshold voltage
Iburst = 6 mA
Ith(burst)(on)
Ith(burst)(off)
burst mode standby active current
burst mode standby inactive
current
tburst-blank
burst mode standby blanking time
Valley switch (pin DRAIN)
∆V/∆tvalley
tvalley-swon
valley recognition voltage change
delay from valley recognition to
switch-on
Overcurrent and short winding protection (pin Isense)
Vsense(max)
tPD
Vswp
tleb
maximum source voltage OCP
propagating delay from detecting
Vsense(max) to switch-off
short winding protection voltage
blanking time for current and
short winding protection
∆V/∆t = 0.1 V/µs
∆V/∆t = 0.5 V/µs
ISS
soft start current
Overvoltage protection (pin DEM)
Vsense < 0.5 V
IOVP(DEM)
OVP current on pin DEM
set by resistor RDEM, see
Section “OverVoltage
Protection (OVP)”
Overpower protection (pin DEM)
IOPP(DEM)
IOPP50%(DEM)
OPP current on pin DEM to start
OPP correction, set by the
demagnetization resistor RDEM
OPP current on pin DEM, where
maximum source voltage is
limited to 0.3 V
set by resistor RDEM, see
Section “OverPower
Protection (OPP)”
MIN. TYP. MAX. UNIT
−
VCO1 − 25 −
mV
−
1.0
−
1.5
−1(1) −0.8
3.3 3.8
16
−
−
−
25 30
−85 −
−
150(1)
−
V
−
V
-0.5 µA
4.3 V
−
mA
6
mA
35
µs
+85 V/µs
−
ns
0.48 0.52
−
140
0.83 0.88
300 370
45 60
54 60
0.56 V
185 ns
0.96 V
440 ns
75
µA
66
µA
−
−24
−
µA
−
−100
−
µA
2002 Aug 23
14
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