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TEA1791T
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?NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 02  7 June 2010
6 of 12
NXP Semiconductors
TEA1791T
GreenChip synchronous rectifier controller
10. Characteristics
 
[1]   The V
CC
 stop voltage is V
startup
 V
hys
.
Table 5.
Characteristics
T
amb
= 25 ?/SPAN>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
Supply voltage management (pin V
CC
)
V
startup
start-up voltage
8.2
8.5
8.8
V
V
hys
hysteresis voltage
[1]
-
0.5
-
V
I
CC(oper)
operating supply current  V
CC
= 8 V (V
CC
< V
startup
)
-
0.65
-
mA
under normal operation;
no load on pin DRIVER
-
0.95
-
mA
Synchronous rectification sense input (pin SRSENSE)
V
act(drv)
driver activation voltage
340
310
280
mV
V
reg(drv)
driver regulation voltage
65
55
45
mV
V
deact(drv)
driver deactivation
voltage
-
12
-
mV
t
d(act)(drv)
driver activation delay
time
-
125
-
ns
t
act(sr)(min)
minimum synchronous
rectification
Short time
1.5
2.0
2.5
約
Long time
1.7
2.2
2.7
約
Driver (pin DRIVER)
I
source
source current
V
CC
= 15 V;
voltage on pin DRIVER = 2 V
0.3
0.25
0.2
A
I
sink
sink current
V
CC
= 15 V
voltage on pin DRIVER = 2 V
1
1.4
-
A
voltage on pin
DRIVER = 9.5 V
2.2
2.7
-
A
V
o(max)
maximum output voltage  V
CC
= 15 V
-
10
12
V
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