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TEA1208T датащи(PDF) 9 Page - NXP Semiconductors

номер детали TEA1208T
подробное описание детали  High efficiency DC/DC converter
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TEA1208T датащи(HTML) 9 Page - NXP Semiconductors

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2002 Nov 15
9
Philips Semiconductors
Product specification
High efficiency DC/DC converter
TEA1208T
CHARACTERISTICS
Tamb = −40 to +80 °C; all voltages are measured with respect to ground; positive currents flow into the IC; unless
otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Voltage levels
UP CONVERSION; pin U/D = LOW
VI
input voltage
VI(start)
5.50
V
VO
output voltage
2.80
5.50
V
VI(start)
start-up input voltage
IL < 62 mA
1.40
1.60
1.85
V
VI(uvlo)
undervoltage lockout input voltage
note 1
1.50
2.10
2.50
V
DOWN CONVERSION; PIN U/D = HIGH
VI
input voltage
note 2
2.80
5.50
V
VO
output voltage
1.30
5.50
V
GENERAL
Vfb
feedback input voltage
1.19
1.24
1.29
V
∆V
wdw
output voltage window
PWM mode
1.5
2.0
3.0
%
Current levels
Iq
quiescent current on pin 3
down conversion;
V3 = 3.6 V; note 3
52
65
72
µA
Ishdwn
current in shut-down mode
210
µA
ILX
maximum continuous current on
pin 4
Tamb =60 °C
−−
0.42
A
Tamb =80 °C
−−
0.30
A
∆I
lim
current limit deviation
Ilim = 0.5 to 2.5 A;
note 4
up conversion
−17.5
+17.5
%
down conversion
−17.5
+17.5
%
Power MOSFETs
RDSon
drain-to-source on-state resistance
N-type
0.10
0.20
0.30
P-type
0.10
0.22
0.35
Efficiency
η
1
efficiency up conversion
VI = 3.6 V; VO = 4.6 V;
L1 = 10
µH; note 5
IL =1mA
88
%
IL =10mA
93
%
IL =50mA
93
%
IL = 100 mA
94
%
IL = 200 mA
95
%
IL = 500 mA
92
%


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