参数资料
型号: TEA1752LT/N1,518
厂商: NXP Semiconductors
文件页数: 4/34页
文件大小: 0K
描述: IC CTLR SMPS SW MODE 16SOIC
标准包装: 1
输出隔离: 隔离
输入电压: 14 V ~ 38 V
功率(瓦特): 600mW
工作温度: -40°C ~ 150°C
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SO
包装: 标准包装
其它名称: 568-5962-6
NXP Semiconductors
TEA1752T; TEA1752LT
GreenChip III SMPS control IC
5. Block diagram
PFC driver
PFCDRIVER
12
FBDRIVER
13
flyback driver
1.12 V
3.5 V
low Vin
PFC gate
driver
driver
flyback gate
external
protection
80 μ A
5 LATCH
1.25 V
VINSENSE 7
PFCCOMP 6
boost
latch
reset
MAXIMUM
PFC
protection protection
enable PFC
R
S
Q
Q
R
S
protection
enable flyback
frequency
reduction
2.5 V
3.5 V
clamp
low
30 μ A
1.25 V
PFC
FLYBACK
power
VOSENSE 9
2.50 V
3.7 V
OSCILLATOR
t on(max)
OSCILLATOR
time-out
3 FBCTRL
boost
3.5 V
15 μ A
3.5 V
low Vin
V o OVP
V o start flyback
V o short
PFC clamp
PFC
protection
V CC good
V o start flyback
low power delay
external protection
PFC clamp
time-out
external protection
OTP
OVP flyback
latch reset
SMPS
CONTROL
S (TEA1752LT only)
S
LATCHED
S
PROTECTION
S
R
frequency reduction
start flyback
start stop PFC
clamp
low power
delay
OPP
flyback driver
MINIMUM
OCP
BLANK
10 FBSENSE
OCP
PFCSENSE 11
500 mV
60 μ A
BLANK
SOFT START
SOFT STOP
PFC driver
enable PFC
start stop PFC
time-out
ton max
V UVLO
protection
external protection
V startup
S (TEA1752T only)
S SAFE RESTART
R PROTECTION
CHARGE
CONTROL
protection
V o short
V CC good
charge
enable flyback
start flyback
START
SOFT
60 μ A 3 μ A
PFCAUX 8
VALLEY
DETECT
TIMER 4 μ s
PFC gate
TIMER 50 μ s
ZERO
CURRENT
SIGNAL
V th(UVLO)
OTP
charge
VALLEY
DETECT
internal supply
V startup
OPP
OVP
COUNTER
flyback
ZERO CURRENT
SIGNAL
OPP
OVP
flyback
gate
4 FBAUX
? 100 mV
low power
DELAY
low power
delay
V th(UVLO)
TEMPERATURE
OTP
80 mV
14
16
1
2
PFCTIMER
HV
V CC
GND
014aaa742
Remark:
TEA1752LT time-out is latched.
TEA1752T time-out is safe restart.
Fig 1.
Block diagram
TEA1752T_LT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 02 — 24 June 2010
? NXP B.V. 2010. All rights reserved.
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