TEA1762T_2
?NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 25 April 2007
8 of 15
NXP Semiconductors
TEA1762T
GreenChip synchronous rectier controller
10. Characteristics
Table 5.
Characteristics
T
amb
= 25 癈; V
CC
= 20 V; all voltages are measured with respect to sense ground (pin 3); currents are positive when owing
into the IC; unless otherwise specied.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Supply voltage management (pin V
CC
)
V
startup
start-up voltage
8.35
8.6
8.85
V
V
hys
hysteresis voltage
[1]
-
0.5
-
V
I
CC(oper)
operating supply current
V
CC
= 8 V; V
CC
< V
startup
-
1
-
mA
under normal operation;
no load on pin DRIVER
-
1.4
-
mA
Synchronous rectication sense input (pin SRSENSE)
V
act(drv)
driver activation voltage
w.r.t. power ground
340
310
280
mV
V
reg(drv)
driver regulation voltage
w.r.t. power ground
65
55
45
mV
V
deact(drv)
driver deactivation voltage
w.r.t. power ground
12
mV
t
d(act)(drv)
driver activation delay time
125
ns
t
act(sr)(min)
minimum synchronous rectication
active time
Short time
1.5
2
2.5
祍
Long time
1.7
2.2
2.7
祍
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
Opto output (pin OPTOREG and OPTOPROT)
I
O(max)
maximum output current
V
OPTO
> 5 V
4
5
6
mA
V
O(min)
minimum output voltage
I
OPTO
= 4 mA
3.5
V
Voltage sense (pin VSENSE)
V
reg(VSENSE)
regulation voltage on pin VSENSE See
Figure
4
2.475
2.5
2.525
V
I
I(VSENSE)
input current on pin VSENSE
V
VSENSE
= V
reg(VSENSE)
100
0
+100
nA
g
m
transconductance
V
VSENSE
to I
OPTOREG
40
A/V
GB
gain bandwidth product
R
L
= 1 k&
1
MHz
Reference voltage (pin VREF)
V
VREF
voltage on pin VREF
2.465
2.5
2.535
V
I
VREF
current on pin VREF
1
mA
C
VREF(max)
maximum capacitance on pin
VREF
40
pF
Current sense (pin ISENSE)
V
reg(ISENSE)
regulation voltage on pin ISENSE w.r.t. power ground;
V
POWERGND
> 0.4 V
46
50
54
mV
I
I(reg)(ISENSE)
regulation input current on pin
ISENSE
V
ISENSE
= V
reg(ISENSE)
200
100
0
nA
g
m
transconductance
V
ISENSE
to I
OPTOPROT
8
A/V
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