EL7585 INTERSIL [Intersil Corporation], EL7585 Datasheet - Page 4

• Manufacturer Part Number: EL7585
• Description: TFT-LCD Power Supply
• Manufacturer: INTERSIL [Intersil Corporation]

Electrical Specifications
Pin Descriptions
Typical Performance Curves
I
I
PARAMETER
LOW
HIGH
FIGURE 1. V
PIN NAME
12, 13
9, 17
3, 4
10
14
15
16
18
19
20
11
1
2
5
6
7
8
100
90
80
70
60
50
40
30
20
10
0
0
Logic Low bias Current
Logic High bias Current
BOOST
0.1
PIN NUMBER
EFFICIENCY AT V
DESCRIPTION
LX1, LX2
0.2
SGND
PGND
DRVP
DRVN
CDLY
DELB
DRVL
VREF
CINT
VDD
FBP
FBN
FBB
FBL
EN
PG
I
OUT
4
V
-40°C to 85°C, unless otherwise specified. (Continued)
0.3
DD
(A)
V
O
=15V
= 5V, V
0.4
A capacitor connected from this pin to GND sets the delay time for start-up sequence and sets the fault
timeout time
Gate drive of optional V
Drain of the internal N channel boost FET; for EL7586, pin 4 is not connected
Positive LDO base drive; open drain of an internal N channel FET
Positive LDO voltage feedback input pin; regulates to 1.2V nominal
Logic LDO base drive; open drain of an internal N channel FET
Logic LDO voltage feedback input pin; regulates to 1.2V nominal
Low noise signal ground
Negative LDO base drive; open drain of an internal P channel FET
Negative LDO voltage feedback input pin; regulates to 0.2V nominal
Power ground, connected to source of internal N channel boost FET
Bandgap voltage bypass, connect a 0.1µF to SGND
V
operation
Boost regulator voltage feedback input pin; regulates to 1.2V nominal
Enable pin, High=Enable; Low or floating=Disable
Positive supply
Gate drive of optional fault protection FET, when chip is disabled or when a fault has been detected, this
is high
BOOST
IN
V
=3V (PI MODE)
V
O
BOOST
O
=12V
=9V
0.5
integrator output, connect capacitor to SGND for PI mode or connect to V
at V
= 11V, I
EN
0.6
= 5V
LOAD
EL7585
BOOST
= 200mA, V
CONDITION
delay FET
ON
FIGURE 2. V
= 15V, V
DESCRIPTION
100
90
80
70
60
50
40
30
20
10
0
0
OFF
BOOST
= -5V, V
EFFICIENCY AT V
LOGIC
0.5
MIN
12
V
I
= 2.5V, over temperature from
O
OUT
=15V
(A)
TYP
0.2
18
1
V
IN
O
=12V
=5V (PI MODE)
DD
V
O
MAX
for P mode
24
=9V
1
1.5
July 1, 2005
FN7345.1
UNIT
µA
µA