tea1781 NXP Semiconductors, tea1781 Datasheet - Page 27

• Manufacturer Part Number: tea1781
• Description: Greenchip Pc Secondary Control Ics
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 8.
T
the IC; unless otherwise specified.
[1]
TEA1781_82_1
Preliminary data sheet
Symbol
V
Undervoltage protection/overvoltage protection
V
V
V
V
Protection
t
System restart
t
d(prot)
d(restart)
amb
ocp
uvp(VOUT_STB)
uvp(VOUT_12V1)
ovp(VOUT_STB)
ovp(VOUT_12V1)
V
= 25 C; no over temperature; all voltages are measured with respect to ground; currents are positive when flowing into
CS_x
: The “x” stands for either “12V” or “STB”
TEA1782T characteristics
Parameter
overcurrent
protection voltage
undervoltage
protection voltage
on pin VOUT_STB
undervoltage
protection voltage
on pin VOUT_12V1
overvoltage
protection voltage
on pin VOUT_STB
overvoltage
protection voltage
on pin VOUT_12V1
protection delay
time
restart delay time
Conditions
V
protection; OCP = n.c. (Can V
changed to e.g. VCS_12V or VCS_STB
here. If so, then that is preferred here.)
V
protection; I
changed to e.g. VCS_12V or VCS_STB
here. If so, then that is preferred here.)
V
protection; I
changed to e.g. VCS_12V or VCS_STB
here. If so, then that is preferred here.)
V
protection during soft start;
OCP_STB = n.c.
V
protection during soft start;
OCP_12V = n.c.
…continued
CS_x
CS_x
CS_x
CS_STB
CS_12V
- V
V
V
VOUT
VOUT
OUT
Rev. 01 — 13 February 2009
V
V
OCP
OCP
VOUT_12V
VOUT_STB
activating current
activating current
activating current
= 100 mA (Can V
= +50 mA (Can V
activating current
activating current
CS
be
TEA1781T; TEA1782T
CS
CS
be
be
GreenChip PC secondary control ICs
[1]
[1]
[1]
Min
155
320
60
230
310
3.90
9.70
5.70
13.7
9
275
Typ
180
380
80
270
360
4.25
10.20 10.70
6.10
14.5
18
550
Max
205
440
105
310
410
4.60
6.50
15.2
27
825
© NXP B.V. 2009. All rights reserved.
Unit
mV
mV
mV
mV
mV
V
V
V
V
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