TEA1792T All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 2 — 9 July 2012 7 of 13
NXP Semiconductors
TEA1792T
GreenChip synchronous rectifier controller
10. Characteristics
[1] The V
CC
stop voltage is V
startup
V
hys
.
Table 5. Characteristics
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
Supply voltage management (pin V
CC
)
V
startup
start-up voltage 8.2 8.5 8.8 V
V
hys
hysteresis voltage
[1]
0.35 0.5 0.65 V
I
CC(oper)
operating supply current V
CC
=8V (V
CC
<V
startup
) 0.2 0.25 0.4 mA
under normal operation; no load on
pin DRIVER
0.8 1 1.2 mA
Synchronous rectification sense input (pin SRSENSE)
V
act(drv)
driver activation voltage 260 220 180 mV
V
reg(drv)
driver regulation voltage resistance between pins SELREG
and GND < 15 k
55 42 30 mV
resistance between pins SELREG
and GND > 700 k
38 30 22 mV
V
deact(drv)
driver deactivation voltage - 12 - mV
t
d(act)(drv)
driver activation delay
time
50 75 100 ns
t
act(sr)(min)
minimum synchronous
rectification active time
short time 1.3 1.8 2.3 s
long time 1.6 2.1 2.6 s
I
o(SELREG)
output current on pin
SELREG
V
SELREG
= 2.5 V 12 10 8 A
Driver (pin DRIVER)
I
source
source current V
CC
= 15 V; voltage on
pin DRIVER = 2 V
during minimum synchronous
rectification time
0.45 0.4 0.35 A
minimum synchronous
rectification time has ended
6 5 4mA
I
sink
sink current V
CC
=15V
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
=15V 9 10 12 V
