tea1752t NXP Semiconductors, tea1752t Datasheet - Page 26

• Manufacturer Part Number: tea1752t
• Description: Greenchip Iii Smps Control Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 5.
T
the IC; unless otherwise specified.
TEA1752T_LT
Product data sheet
Symbol
Peak current control flyback (pin FBCTRL)
V
V
R
I
I
Valley switching flyback (pin HV)
(ΔV/Δt)
t
Soft start flyback (pin FBSENSE)
I
V
R
Overcurrent protection flyback (pin FBSENSE)
V
V
t
I
Overpower protection flyback (pin FBSENSE)
V
Driver (pin FBDRIVER)
I
I
V
O(FBCTRL)
to(FBCTRL)
d(vrec-swon)
start(soft)fb
leb(fb)
adj(FBSENSE)
src(FBDRIVER)
sink(FBDRIVER)
amb
FBCTRL
to(FBCTRL)
int(FBCTRL)
start(soft)fb
start(soft)fb
sense(fb)max
sense(fb)min
sense(fb)max
O(FBDRIVER)(max)
= 25
vrec(fb)
°
C; V
Characteristics
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
Parameter
voltage on pin FBCTRL
time-out voltage on pin
FBCTRL
internal resistance on pin
FBCTRL
output current on pin FBCTRL
time-out current on pin
FBCTRL
flyback valley recognition
voltage change with time
valley recognition to switch-on
delay time
flyback soft start current
flyback soft start voltage
flyback soft start resistance
maximum flyback sense
voltage
minimum flyback sense voltage ΔV/Δt = 50 mV/μs
flyback leading edge blanking
time
adjust current on pin
FBSENSE
maximum flyback sense
voltage
source current on pin
FBDRIVER
sink current on pin FBDRIVER V
maximum output voltage on pin
FBDRIVER
…continued
All information provided in this document is subject to legal disclaimers.
Rev. 02 — 24 June 2010
Conditions
for maximum flyback peak current
enable voltage
trip voltage
V
V
V
V
enable voltage
ΔV/Δt = 50 mV/μs
ΔV/Δt = 200 mV/μs
peak current
ΔV/Δt = 50 mV/μs
V
V
FBCTRL
FBCTRL
FBCTRL
FBCTRL
FBDRIVER
FBDRIVER
FBDRIVER
I
I
I
I
FBAUX
FBAUX
FBAUX
FBAUX
= 0 V
= 2 V
= 2.6 V
= 4.1 V
= 80 μA
= 120 μA
= 240 μA
= 360 μA
= 2 V
= 2 V
= 10 V
TEA1752T; TEA1752LT
GreenChip III SMPS control IC
[4]
Min
1.85
-
4.2
-
−1.4
−0.6
−36
−34.5 −28.5 −22.5 μA
−75
-
−75
0.55
16
0.61
0.64
0.305 0.325 0.345 V
255
−3.2
0.61
0.57
0.47
0.41
-
-
-
-
Typ
2.0
2.5
4.5
3
−1.19 −0.93 mA
−0.5
−30
-
150
−60
0.63
-
0.65
0.68
305
−3.0
0.65
0.62
0.52
0.46
−0.5
0.7
1.2
11
© NXP B.V. 2010. All rights reserved.
Max
2.15
-
4.8
-
−0.4
−24
+75
-
−45
0.70
-
0.69
0.72
355
−2.8
0.69
0.67
0.57
0.51
-
-
-
12
26 of 34
Unit
V
V
V
kΩ
mA
μA
V/μs
ns
μA
V
kΩ
V
V
ns
μA
V
V
V
V
A
A
A
V