|
|
PDF TEA1566 Data sheet ( Hoja de datos )
| Número de pieza | TEA1566 | |
| Descripción | GreenChip; SMPS module | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TEA1566 (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
|
No Preview Available !
INTEGRATED CIRCUITS
DATA SHEET
TEA1566
GreenChip™; SMPS module
Preliminary specification
File under Integrated Circuits, IC11
1999 Apr 20
1 page  
Philips Semiconductors
GreenChip™; SMPS module
Preliminary specification
TEA1566
In case of output short circuit, the Vaux capacitor is no
longer supplied by the auxiliary winding and its voltage
drops till it reaches the UVLO level. If the output is an open
circuit, the output voltage will rise till it reaches the Over
Voltage Protection (OVP) level. The IC will detect this state
and stop switching.
In absence of switching of the power device, the Vaux
capacitor will not be re-supplied and its voltage will drop till
it reaches UVLO level. Once the Vaux voltage drops to
UVLO level, the start-up current source is re-activated and
it charges the Vaux capacitor to its start level and the
system goes through a cycle similar to the start-up cycle.
Figure 5 shows the relevant waveforms during safe-restart
mode. The charging current (see symbol ‘Irestart-prot’ in
Chapter “Characteristics”) from the start-up circuit during
the safe-restart mode is lower than the normal start-up
current (see symbol ‘Istart-high’ in
Chapter “Characteristics”) in order to implement a low
“hiccup” duty cycle. This helps insure devices on the
output secondary winding do not get destroyed during
output short circuit, violating safety conditions.
The start-up current source also plays a key role in
implementation of burst mode stand-by (see symbol
‘Irestart-stby’ in Chapter “Characteristics”), which will be
explained later.
Vaux
11 V
8.05 V
(1)
Vout
(2)
t
Vgate
t
off switching
t MGR694
(1) Start-up current charges capacitor Vaux.
(2) Charging of capacitor Vaux is taken-over by the auxiliary winding.
Fig.4 Normal start-up waveforms.
handbook, full pagewidth
Vaux
normal operation
fault condition
(1)
Vgate
MGR695
t
switching off
(1) Start-up current source charges capacitor Vaux.
Fig.5 Safe-start mode waveforms.
1999 Apr 20
5
t
5 Page 
Philips Semiconductors
GreenChip™; SMPS module
Preliminary specification
TEA1566
CHARACTERISTICS
Tj = −10 to +110 °C; Vin = 300 V; Vaux = 8.6 to 13 V; RIref = 24.9 kΩ ±0.1%; all currents into the chip are positive and all
currents out of the chip are negative; all voltages are measured with respect to ground.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Input voltage and current on pin 9
Vdlow
Iin
Iin(off)
minimum start drain voltage
input current
off mode current
normal operation
VOOB < 1.95 V
100 −
20 60
150 350
Start-up current source and Vaux management on pin 2
Vstart
Vuvlo
Vhys
Istart(low)
Istart(high)
laux
Irestart(prot)
Irestart(stdby)
Vclamp
start-up voltage
under voltage lockout
operation voltage hysteresis
start-up current
start-up current
IC supply current
restart current
restart current
clamp voltage level
Vstart-Vuvlo
0 V < Vaux < 0.5 V
0.5 V < Vaux < Vstart
in high frequency mode
in protection mode
in stand-by mode
laux = 5 mA (non switching)
10.4
7.4
2.60
−270
−5.0
7.0
−600
−2.5
15
11
8.05
2.95
−230
−3.0
7.7
−530
−2.1
−
Reference input on pin 3
Vref
reference voltage
capacitor pin Iref = 50 nF 2.37 2.47
Rref operating resistor range
16.9 24.9
Oscillator
fosc-l
fosc-h
δmax
fratio
fosc-h-range
low frequency
high frequency
maximum duty cycle
ratio fosc-h/fosc-l
range of fosc-h
low power mode;
CIREF = 50 nF
normal mode;
CIREF = 50 nF
f = fosc-h
with changing RIREF
27.5 29
66 70
78 80
2.30 2.45
50 70
Demagnetization input on pin 6
Vth(comp)
tPD
Ibias
Vclamp(neg)
Vclamp(pos)
demag comparator threshold
propagation delay to output
buffer
input bias current
negative clamp level
positive clamp level
Vdem decreasing
Vdem = 65 mV
Idem = −500 µA
Idem = 100µA
50 65
300 500
−0.50(1) −
−0.45 −0.35
2.3 2.6
Sample and hold input on pin 6
Idem
lth(sh)
tPD
normal control current
sample threshold current
propagation delay of current
comparator
lref = 100 µA
% of Idem
δVdemag/δt positive
δVdemag/δt negative
90 100
78 83
170 450
20 90
−V
100 µA
550 µA
11.6
8.6
3.30
−190
−1.0
8.5
−460
−1.7
18
V
V
V
µA
mA
mA
µA
mA
V
2.57 V
33.2 kΩ
30.5 kHz
74 kHz
82 %
2.60
100 kHz
80 mV
700 ns
−0.10(1) µA
0V
2.9 V
110 µA
88 %
730 ns
160 ns
1999 Apr 20
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet TEA1566.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TEA1566 | GreenChip; SMPS module | NXP Semiconductors |
| TEA1566J | GreenChip; SMPS module | NXP Semiconductors |
| TEA1566S | GreenChip; SMPS module | NXP Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |