tea1781 NXP Semiconductors, tea1781 Datasheet - Page 4

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

NXP Semiconductors
6. Pinning information
TEA1781_82_1
Preliminary data sheet
Fig 2.
Fig 3.
VSENSE_5V
WND_SEC_1
VSTARTUP
FSR
PGND_5V
VOUT_5V
TEA1782T block diagram
TEA1781T pin configuration
ENABLE
GSB_5V
GSF_5V
FSB_5V
CS_5V
DF_5V
Vref(12V)
V
Drive SR
VNTC
trip
GND
GND
OCP
GSR
V/I
I pd
GSB_12V DF_12V
down
6.1 Pinning
Pull-
Control 12 V
I
10
11
12
13
14
1
2
3
4
5
6
7
8
9
V/I
Drive 12 V
EN_NM
t
d
V
EN_NM
FSB_12V
Q R
I
VDD
Enable NM
TEA1781T
Control 12 V
S
PGND_12V
GSF_12V
014aaa183
ENABLE
EN_NM
V
V
VDD
ENABLE
CS_12V
NORMAL
V ENABLE
V
V
< V
+ PS_OFF+ PROT_12V + UVP_STB
ovp(VOUT_12V1)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
uvp(VOUT_12V1)
I
stop(VDD)
ENABLE
= 11 V
FSR
GSR
WND_SEC_2
FSB_3V3
GSB_3V3
DF_3V3
PGOOD
CS_3V3
VOUT_3V3
VSENSE_3V3
PWROK
PGND_3V3
GSF_3V3
VDD
VOUT_12V1
VOUT_12V2
> I
prot(ENABLE)
PS_OFF
V
ENABLE
STARTUP
RESTART
SYSTEM
Rev. 01 — 13 February 2009
Digital control
PROT_12V
I
VOUT_12V2
12 V OCP detection
= 4 V
I
OCP_12V
VOUT_12V
+ EN_NM
I
OCP_12V
PROT_STB
Protection 12 V
PS_OFF
V
PROT/STDB
ENABLE
V
V
V
GSB_STB
VDD
VDD
ref(OCP)
system failure
detection
= 4 V
> V
> V
Fig 4.
DF_STB
startup(VDD)
startup(VDD)
UVP_STB
system
normal
restart
Control standby
Q R
FSB_STB
VDD
PGND_STB
VOUT_12V1
VOUT_12V2
S
PGND_12V
OCP_12V
GSB_12V
GSF_12V
FSB_12V
TEA1782T pin configuration
TEA1781T; TEA1782T
ENABLE
PS_OFF
standby
CS_12V
DF_12V
EN_NM
Drive
start
start
Drive
3.3 V
V
Startup
startup(VDD)
GND
GND
Soft Start
GSF_STB
VDD GND GND
V
V
ref(stb)
ref(12V)
GreenChip PC secondary control ICs
I-control standby
10
11
12
13
14
1
2
3
4
5
6
7
8
9
V
V
ovp(VOUT_STB)
uvp(VOUT_STB)
DOWN
I
Opto control
VOUT_STB
CS_STB
UP
TEA1782T
I
VOUT_STB
014aaa184
I
I
I
V/I
V
VOUT_STB
OCP_STB
ref(stb)
OCP_STB
V
VDD
Protection
ref(OCP)
> I
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Power-
standby
V/I
Good
OCP_STB
© NXP B.V. 2009. All rights reserved.
FSR
GSR
WND_SEC_1
FSB_STB
GSB_STB
DF_STB
OCP_STB
CS_STB
VOUT_STB
OPTO
PGOOD
PGND_STB
GSF_STB
VDD
014aaa182
OPTO
PGOOD
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