参数资料
型号: TEA1733LT/N1,118
厂商: NXP Semiconductors
文件页数: 13/21页
文件大小: 0K
描述: IC CTLR SMPS SW SO8
标准包装: 1
系列: GreenChip™
输出隔离: 隔离
频率范围: 62kHz ~ 71kHz
输入电压: 12 V ~ 30 V
输出电压: 9 V ~ 12 V
功率(瓦特): 500mW
工作温度: -40°C ~ 150°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 标准包装
相关产品: 732-2243-ND - TRANS FLYBACK NXP TEA1733 4.0MH
732-2242-ND - TRANS FLYBACK NXP TEA1733 2.2MH
其它名称: 568-5346-6
NXP Semiconductors
TEA1733LT
GreenChip SMPS control IC
Table 5. Characteristics …continued
T amb = 25 ? C; V CC = 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
the IC; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Pulse width modulator
f osc
f mod
? f mod
oscillator frequency
modulation frequency
modulation frequency
62
210
? 3
66.5
280
? 4
71
350
? 5
kHz
Hz
kHz
variation
? max
maximum duty cycle
68.5
72
79
?
V start(red)f
frequency reduction start
pin CTRL
1.5
1.8
2.1
V
voltage
V ? (zero)
zero duty cycle voltage
pin CTRL
1.25
1.55
1.85
V
Overpower protection (pin OPTIMER)
V prot(OPTIMER)
protection voltage on pin
2.4
2.5
2.6
V
OPTIMER
I prot(OPTIMER)
protection current on pin
OPTIMER
no overpower situation
overpower situation
100
? 12.2
150
? 10.7
200
? 9.2
? A
? A
Restart timer (pin OPTIMER)
V restart(OPTIMER)
I restart(OPTIMER)
restart voltage on pin
OPTIMER
restart current on pin
low level
high level
charging OPTIMER
0.8
4.1
? 127
1.2
4.5
? 107
1.6
4.9
? 87
V
V
? A
OPTIMER
capacitor
discharging OPTIMER
? 0.1
0
0.1
? A
capacitor
Current sense (pin ISENSE)
V sense(max)
maximum sense voltage
? V/ ? t = 50 mV/ ? s;
0.48
0.51
0.54
V
V VINSENSE = 0.78 V
? V/ ? t = 200 mV/ ? s;
0.50
0.53
0.56
V
V VINSENSE = 0.78 V
V th(sense)opp
overpower protection sense
370
400
430
mV
threshold voltage
? V ISENSE / ? t
slope compensation voltage ? V/ ? t = 50 mV/ ? s
17
25
33
mV/ ? s
on pin ISENSE
t leb
leading edge blanking time
250
300
350
ns
Overpower compensation (pin VINSENSE and pin ISENSE)
I opc(ISENSE)
overpower compensation
V VINSENSE = 1 V;
-
0.28
-
? A
current on pin ISENSE
V sense(max) > 400 mV
V VINSENSE =3 V;
-
1.7
-
? A
V sense(max) > 400 mV
TEA1733LT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 16 July 2013
? NXP B.V. 2013. All rights reserved.
13 of 21
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