參數(shù)資料
型號(hào)： TEA1733LT/N1
廠商： NXP SEMICONDUCTORS
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 71 kHz SWITCHING FREQ-MAX, PDSO8
封裝： 3.90 MM, PLASTIC, MS-012, SOT96-1, SOP-8
文件頁(yè)數(shù)： 5/21頁(yè)
文件大小： 215K
代理商： TEA1733LT/N1
TEA1733LT
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 6 — 25 January 2011
13 of 21
NXP Semiconductors
TEA1733LT
GreenChip SMPS control IC
10. Characteristics
Table 5.
Characteristics
Tamb =25 °C; VCC = 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
Supply voltage management (pin VCC)
Vstartup
start-up voltage
18.6
20.6
22.6
V
Vth(UVLO)
undervoltage lockout
threshold voltage
11.2
12.2
13.2
V
Vclamp(VCC)
clamp voltage on pin VCC
activated during restart
-
Vstartup +1
-
V
activated during latched
protection
-Vrst(latch) +1 -
V
Vhys
hysteresis voltage
Vstartup Vth(UVLO)
89
10
V
ICC(startup)
start-up supply current
VCC <Vstartup
510
15
μA
ICC(oper)
operating supply current
no load on pin DRIVER
0.4
0.5
0.6
mA
Vrst(latch)
latched reset voltage
4
5
6
V
Input voltage sensing (pin VINSENSE)
Vstart(VINSENSE)
start voltage on pin
VINSENSE
detection level
0.89
0.94
0.99
V
Vdet(L)(VINSENSE)
LOW-level detection voltage
on pin VINSENSE
0.68
0.72
0.76
V
Vdet(H)(VINSENSE) HIGH-level detection
voltage on pin VINSENSE
3.39
3.52
3.65
V
IO(VINSENSE)
output current on pin
VINSENSE
-
20
-
nA
Vclamp(VINSENSE)
clamp voltage on pin
VINSENSE
II(VINSENSE) =50 μA-
5.2
-
V
Protection input (pin PROTECT)
Vdet(L)(PROTECT)
LOW-level detection voltage
on pin PROTECT
0.47
0.50
0.53
V
Vdet(H)(PROTECT)
HIGH-level detection
voltage on pin PROTECT
0.75
0.8
0.85
V
IO(PROTECT)
output current on pin
PROTECT
VPROTECT =Vlow(PROTECT)
34
32
30
μA
VPROTECT =Vhigh(PROTECT)
87
107
127
μA
Vclamp(PROTECT)
clamp voltage on pin
PROTECT
II(PROTECT) =200 μA
[1] 3.54.1
4.7V
Peak current control (pin CTRL)
VCTRL
voltage on pin CTRL
for minimum flyback peak
current
1.51.8
2.1V
for maximum flyback peak
current
3.43.9
4.3V
Rint(CTRL)
internal resistance on pin
CTRL
57
9k
Ω
IO(CTRL)
output current on pin CTRL
VCTRL =1.4 V
0.7
0.5
0.3
mA
VCTRL =3.7 V
0.28
0.2
0.12
mA
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