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TEA1751T_LT_2
?NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02  23 December 2009
19 of 29
NXP Semiconductors
TEA1751T; TEA1751LT
GreenChip III SMPS control IC
 
7.3.11   Driver (pin FBDRIVER)
The driver circuit to the gate of the external power MOSFET has a current sourcing
capability of typically 500 mA and a current sink capability of typically 1.2 A. This permits
fast turn-on and turn-off of the power MOSFET for efficient operation.
8.   Limiting values
 
Fig 16.   Overpower protection curve
I
FBAUX
 (糀)
400
360
0
100
300
200
014aaa096
0.4
0.5
0.6
V
FBSENSE
 
(V)
0.3
0.52
0.37
Table 3.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
Max
Unit
Voltages
V
CC
supply voltage
0.4
+38
V
V
LATCH
voltage on pin LATCH
current limited
0.4
+5
V
V
FBCTRL
voltage on pin FBCTRL
0.4
+5
V
V
PFCCOMP
voltage on pin PFCCOMP
0.4
+5
V
V
VINSENSE
voltage on pin VINSENSE
0.4
+5
V
V
VOSENSE
voltage on pin VOSENSE
0.4
+5
V
V
PFCAUX
voltage on pin PFCAUX
25
+25
V
V
FBSENSE
voltage on pin FBSENSE
current limited
0.4
+5
V
V
PFCSENSE
voltage on pin PFCSENSE
current limited
0.4
+5
V
V
HV
voltage on pin HV
0.4
+650
V
Currents
I
FBCTRL
current on pin FBCTRL
3
0
mA
I
FBAUX
current on pin FBAUX
1
+1
mA
I
PFCSENSE
current on pin PFCSENSE
1
+10
mA
I
FBSENSE
current on pin FBSENSE
1
+10
mA
I
FBDRIVER
current on pin FBDRIVER
duty cycle < 10 %
0.8
+2
A
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