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부품번호 | TEA1506AP 기능 |
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기능 | GreenChip SMPS control IC | ||
제조업체 | NXP Semiconductors | ||
로고 | |||
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INTEGRATED CIRCUITS
DATA SHEET
DataSheet4U.com
DataShee
TEA1506P; TEA1506AP;
TEA1506T; TEA1506AT
GreenChip™II SMPS control IC
Product specification
2003 Sep 09
DataSheet4U.com
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VCC
1
(2)
GND
2
(3)
SUPPLY
MANAGEMENT
internal UVLO start
supply
VOLTAGE
CONTROLLED
OSCILLATOR
FREQUENCY
CONTROL
LOGIC
UP/DOWN
COUNTER
VALLEY
Iprot(DEM)
clamp
100
mV
OVER-
VOLTAGE
PROTECTION
8
DRAIN
(14)
4 DEM
(7)
CTRL
3
(6)
Iprot(CTRL)
−1
3.8 V
TEA1506P;
TEA1506AP
(TEA1506T;
TEA1506 AT)
POWER-ON
RESET
OVER-
TEMPERATURE
PROTECTION
LOGIC
SQ
UVLO R Q
SQ
VCC < 4.5 V
or UVLO
(TEA1506AT)
RQ
MAXIMUM
ON-TIME
PROTECTION
Pin numbers in parenthesis represent the SO version.
Fig.2 Block diagram.
DRIVER
LEB
blank
OCP
6 DRIVER
(11)
soft
start
S2
Iss
0.5 V
5 Isense
(9)
short
winding
0.88 V
OVERPOWER
PROTECTION
MDB505
4페이지 www.DataSheet4U.com
Philips Semiconductors
GreenChip™II SMPS control IC
f
handbook, halfp(akgHe z)
175
MGU509
175 kHz
25
VCO2 VCO1 Vsense(max) (V)
level level
Fig.7 VCO frequency as function of Vsense(max).
Product specification
TEA1506P; TEA1506AP;
TEA1506T; TEA1506AT
Cycle skipping
At very low power levels, a cycle skipping mode will be
activated. A high control voltage will reduce the switching
frequency to a minimum of 25 kHz. If the voltage on the
control pin is raised even more, switch-on of the external
power MOSFET will be inhibited until the voltage on the
control pin has dropped to a lower value again (see Fig.8).
For system accuracy, it is not the absolute voltage on the
control pin that will trigger the cycle skipping mode, but a
signal derived from the internal VCO will be used.
Remark: If the no-load requirement of the system is such
that the output voltage can be regulated to its intended
level at a switching frequency of 25 kHz or above, the
cycle skipping mode will not be activated.
handbook, full pagewidth
et4U.com
CTRL
1.5 V − VCTRL current
comparator
X2
DRIVER DaDtaRISVEhReet4U.com
Isense
Vx
150 mV
V
I
OSCILLATOR
fosc
fmax
fmin
cycle
skipping
1
dV2
0
dV1 Vx (mV)
150
Vx (mV)
MGU510
The voltage levels dV1 and dV2 are fixed in the IC to 50 mV (typical) and 18 mV (typical) respectively.
Fig.8 The cycle skipping circuitry.
DataShee
DataSheet42U00.c3oSmep 09
DataSheet4 U .com
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부품번호 | 상세설명 및 기능 | 제조사 |
TEA1506AP | GreenChip SMPS control IC | NXP Semiconductors |
TEA1506AT | GreenChip SMPS control IC | NXP Semiconductors |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |