EL7581IRE Intersil, EL7581IRE Datasheet - Page 4
![IC CONV DC/DC 3-CHAN 20-HTSSOP](/photos/28/16/281692/20-tssop_mdp_sml.jpg)
EL7581IRE
Manufacturer Part Number
EL7581IRE
Description
IC CONV DC/DC 3-CHAN 20-HTSSOP
Manufacturer
Intersil
Datasheet
1.EL7581IREZ.pdf
(17 pages)
Specifications of EL7581IRE
Applications
Converter, TFT, LCD
Voltage - Input
2.7 ~ 14 V
Number Of Outputs
2
Voltage - Output
5 ~ 17 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EL7581IRE
Manufacturer:
ELANTEC
Quantity:
50 000
Company:
Part Number:
EL7581IRE-T13
Manufacturer:
VIA
Quantity:
17
Part Number:
EL7581IRE-T7
Manufacturer:
EL
Quantity:
20 000
Part Number:
EL7581IREZ
Manufacturer:
INTERSIL
Quantity:
20 000
Part Number:
EL7581IREZ-T13
Manufacturer:
INTERSIL
Quantity:
20 000
Pin Descriptions
PIN NUMBER
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
PIN NAME
PGND
PGND
ROSC
VDDB
DRVN
VDDN
VDDP
DRVP
ENBN
I = Input, O = Output, S = Supply
VSSB
VSSP
VREF
FBN
ENP
FBB
FBP
SS
LX
LX
LX
4
PIN TYPE
S
O
O
O
O
S
O
O
O
S
S
S
I
I
I
I
I
I
I
I
Ground for DC/DC boost and reference circuits; chip substrate
Soft-start input; the capacitor connected to this pin sets the current limited start time
Voltage feedback input for boost circuit; determines boost output voltage, V
Positive supply input for DC/DC boost circuits
Boost regulator inductor drive connected to drain of internal NFET
Boost regulator inductor drive connected to drain of internal NFET
Boost regulator inductor drive connected to drain of internal NFET
Driver output for the external generation of negative charge pump voltage, V
Positive supply for input for V
Voltage feedback input to determine negative charge pump output, V
Negative supply pin for both the positive and negative charge pumps
Voltage feedback to determine positive charge pump output, V
Positive supply input for V
Voltage driver output for the external generation of positive charge pump, V
Power ground, connected to source of internal NFET
Power ground, connected to source of internal NFET
Voltage reference for charge pump circuits; decouple to ground
Enable pin for boost (V
active high
Enable for DRVP (V
Connected to an external resistor to ground; sets the switching frequency of the DC/DC boost
EL7581
ON
BOOST
generation); active high
ON
OFF
generator
generation) and negative charge pump (V
generator
PIN FUNCTION
ON
OFF
OFF
BOOST
ON
OFF
generation);