参数资料
型号: TEA1752LT/N1,518
厂商: NXP Semiconductors
文件页数: 26/34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
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
Peak current control flyback (pin FBCTRL)
V FBCTRL
V to(FBCTRL)
R int(FBCTRL)
voltage on pin FBCTRL
time-out voltage on pin
FBCTRL
internal resistance on pin
for maximum flyback peak current
enable voltage
trip voltage
1.85
-
4.2
-
2.0
2.5
4.5
3
2.15
-
4.8
-
V
V
V
k Ω
FBCTRL
I O(FBCTRL)
output current on pin FBCTRL
V FBCTRL = 0 V
? 1.4
? 1.19 ? 0.93 mA
V FBCTRL = 2 V
? 0.6
? 0.5
? 0.4
mA
I to(FBCTRL)
time-out current on pin
V FBCTRL = 2.6 V
? 36
? 30
? 24
μ A
FBCTRL
Valley switching flyback (pin HV)
V FBCTRL = 4.1 V
? 34.5 ? 28.5 ? 22.5 μ A
( Δ V/ Δ t) vrec(fb)
flyback valley recognition
? 75
-
+75
V/ μ s
voltage change with time
t d(vrec-swon)
valley recognition to switch-on
-
150
-
ns
delay time
Soft start flyback (pin FBSENSE)
I start(soft)fb
flyback soft start current
? 75
? 60
? 45
μ A
V start(soft)fb
R start(soft)fb
flyback soft start voltage
flyback soft start resistance
enable voltage
0.55
16
0.63
-
0.70
-
V
k Ω
Overcurrent protection flyback (pin FBSENSE)
V sense(fb)max
maximum flyback sense
voltage
Δ V/ Δ t = 50 mV/ μ s
Δ V/ Δ t = 200 mV/ μ s
0.61
0.64
0.65
0.68
0.69
0.72
V
V
V sense(fb)min
minimum flyback sense voltage Δ V/ Δ t = 50 mV/ μ s
0.305 0.325 0.345 V
t leb(fb)
flyback leading edge blanking
255
305
355
ns
time
I adj(FBSENSE)
adjust current on pin
peak current
? 3.2
? 3.0
? 2.8
μ A
FBSENSE
Overpower protection flyback (pin FBSENSE)
V sense(fb)max
maximum flyback sense
Δ V/ Δ t = 50 mV/ μ s
voltage
I FBAUX = 80 μ A
I FBAUX = 120 μ A
I FBAUX = 240 μ A
I FBAUX = 360 μ A
0.61
0.57
0.47
0.41
0.65
0.62
0.52
0.46
0.69
0.67
0.57
0.51
V
V
V
V
Driver (pin FBDRIVER)
I src(FBDRIVER)
source current on pin
V FBDRIVER = 2 V
-
? 0.5
-
A
FBDRIVER
I sink(FBDRIVER)
V O(FBDRIVER)(max)
sink current on pin FBDRIVER
maximum output voltage on pin
V FBDRIVER = 2 V
V FBDRIVER = 10 V
-
-
-
0.7
1.2
11
-
-
12
A
A
V
FBDRIVER
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.
26 of 34
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