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 rectifier controller
10. Characteristics
Table 5. Characteristics
T
amb
=25
°
C; V
CC
= 20 V; all voltages are measured with respect to sense ground (pin 3); 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 8.35 8.6 8.85 V
V
hys
hysteresis voltage
[1]
- 0.5 - V
I
CC(oper)
operating supply current V
CC
=8V; V
CC
<V
startup
-1-mA
under normal operation;
no load on pin DRIVER
- 1.4 - mA
Synchronous rectification 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 rectification
active time
Short time 1.5 2 2.5 µs
Long time 1.7 2.2 2.7 µs
Driver (pin DRIVER)
I
source
source current V
CC
= 15 V; voltage on pin
DRIVER=2V
−0.3 −0.25 −0.2 A
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 - 10 12 V
Opto output (pin OPTOREG and OPTOPROT)
I
O(max)
maximum output current V
OPTO
>5V 456mA
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
=1kΩ 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 −1mA
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
