tea1791t/n1 NXP Semiconductors, tea1791t/n1 Datasheet - Page 6

• Manufacturer Part Number: tea1791t/n1
• Description: Greenchip Synchronous Recti?er Controller
• Manufacturer: NXP Semiconductors

NXP Semiconductors
10. Characteristics
Table 5.
T
IC; unless otherwise specified.
[1]
TEA1791T_1
Product data sheet
Symbol
Supply voltage management (pin V
V
V
I
Synchronous rectification sense input (pin SRSENSE)
V
V
V
t
t
Driver (pin DRIVER)
I
I
V
CC(oper)
d(act)(drv)
act(sr)(min)
source
sink
amb
startup
hys
act(drv)
reg(drv)
deact(drv)
o(max)
The V
= 25 C; V
CC
Characteristics
stop voltage is V
Parameter
start-up voltage
hysteresis voltage
operating supply current V
driver activation voltage
driver regulation voltage
driver deactivation
voltage
driver activation delay
time
minimum synchronous
rectification active time
source current
sink current
maximum output voltage V
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into the
startup
V
hys
.
CC
Conditions
under normal operation; no
load on pin DRIVER
Short time
Long time
V
DRIVER = 2 V
V
)
CC
CC
CC
CC
voltage on pin DRIVER = 2 V
voltage on pin
DRIVER = 9.5 V
= 8 V (V
= 15 V; voltage on pin
= 15 V
= 15 V
Rev. 01 — 3 February 2009
CC
< V
startup
)
GreenChip synchronous rectifier controller
[1]
Min
8.2
-
-
-
-
-
1.5
1.7
1
2.2
-
340
65
0.3
Typ
8.5
0.5
0.65
0.95
125
2.0
2.2
1.4
2.7
10
310
55
12
0.25
TEA1791T
© NXP B.V. 2009. All rights reserved.
Max
8.8
-
-
-
-
-
2.5
2.7
-
-
12
280
45
0.2
Unit
V
V
mA
mA
mV
mV
mV
ns
A
A
A
V
s
s
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