TEA1733LT 데이터 시트보기 (PDF) - NXP Semiconductors.
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TEA1733LT Datasheet PDF : 20 Pages
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NXP Semiconductors
5. Block diagram
TEA1733T; TEA1733LT
GreenChip III SMPS control IC
1
VCC
22 V
2
GND
clamp
clamp
power down
21 V
VCCstart Vctrl(Ipeak)
400 mV
12 V
VCCstop
6V
DQ
driver
overpower
2.5 V
latch 5 V
restart
latch reset
OPP switch
TEMPERATURE
PROTECTION
OTP
RESTART
CONTROL
OPP switch
107 μA
set
δmax
OSCILLATOR
frequency reduction
OPTIMER
1.2 V / 4.5 V
Vctrl(Ipeak)
ANALOG
CONTROL
MODULATION
SLOPE
COMPENSATION
11 μA
8
OPTIMER
5.4 V
7 kΩ
7
CTRL
DRIVER
DRV
3
S set
Q
R
stop
δmax
restart
55
μA
4
ISENSE
BLANK
soft start LEB
soft start
Vctrl(Ipeak)
OVERPOWER
CORRECTION
OCP
stop
latch
VINSENSE
restart
S
Q
R
latch
S
Q
R
VCCstop
overpower(1)
highvin
lowvin
VCCstart
power down
lowvin
protlow
OTP
prothigh
protlow
overpower(1)
latch reset
prothigh
protlow
highvin
lowvin
DIGITAL CONTROL
32
μA
0.50 V/0.80 V 6
107
μA
PROTECT
3.52 V
0.72 V/0.94 V
5
VINSENSE
014aaa926
(1) In the TEA1733LT the Overpower signal switches the IC to the latched-off state. In the TEA1733T the Overpower signal triggers
the restart timer.
Fig 1. Block diagram
TEA1733T_TEA1733LT_2
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 02 — 26 March 2010
© NXP B.V. 2010. All rights reserved.
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