ISL6115CBZA Intersil, ISL6115CBZA Datasheet - Page 7

• Manufacturer Part Number: ISL6115CBZA
• Description: IC CTRLR POWER DISTRIB 8-SOIC
• Manufacturer: Intersil
• Type: Hot-Swap Controllerr

Specifications of ISL6115CBZA

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 10.2 V ~ 13.8 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Output Voltage: 6V
• Internal Switch: No
• Supply Voltage Range: 10.2V To 13.8V
• Digital Ic Case Style: SOIC
• No. Of Pins: 8
• Operating Temperature Range: 0°C To +85°C
• Termination Type: SMD
• Rohs Compliant: Yes
• Filter Terminals: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Biasing the ISL6116
Table 3 gives typical component values for biasing the
ISL6116 in a ±48V application. The formulas and
calculations deriving these values are also shown in the
following equations.
When using the ISL6116 to control -48V, a Zener diode
may be used to provide the +12V bias to the chip. If a
Zener is used then a current limit resistor should also
be used. Several items must be taken into account
when choosing values for the current limit resistor
(R
• The variation of the V
• The chip supply current needs for all functional
• The power rating of R
• The current rating of DD1
1.58kΩ
TABLE 3. TYPICAL VALUES FOR A -48V HOT SWAP
nominal)
conditions
CL
DD1
SYMBOL
R
1W
) and Zener Diode (DD1):
CL
DD1
R
FIGURE 2. TYPICAL 5A LOAD CONTROL
CL
APPLICATION
12V
LOAD
V
BUS
1.58kΩ, 1W
12V Zener Diode, 50mA Reverse Current
0.001µF
0.01µF
-48V
BUS
CL
.
7
0.047µF
PARAMETER
(in this case, -48V
2kΩ
ISL6115, ISL6116, ISL6117, ISL6120
ISL6116
NC
1.47kΩ
0.005
PWRON
1%
1%
Formulas
Sizing R
Power Rating of R
DD1 current rating is expressed in Equation 3:
Example:
A typical -48V supply may vary from -36 to -72V.
Therefore:
V
V
I
Sizing R
Power rating of R
DD1 current rating is expressed in Equation 6:
P
R
I
R
R
R
P
P
P
I
I
I
DD1
CHIP
DD1
DD1
DD1
BUS,MAX
BUS,MIN
RCL
RCL
RCL
RCL
CL
CL
CL
CL
=
=
=
=
=
=
=
=
=
=
=
=
= 15mA (Max)
V
------------------------------------------ -
(
----------------------------------------------- -
36 12
------------------ -
16kΩ TypicalValue
38mA TypicalValue
(
------------------------------------------------- -
(
------------------------------------------------- -
(
----------------------- -
0.015
V
I
1.58kΩ
V
I
(
0.9W TypicalValue
V
72 12
CL
BUS MIN
CL
C
C
0.015
BUS MIN
BUS MAX
–
BUS MAX
(
(
= -36V
–
V
V
= -72V
is expressed in Equation 1:
I
is expressed in Equation 4:
[
CHIP
(
BUS MAX
BUS MAX
(
[
[
(
(
R
R
I
) 72 12
C
(
)
CL
CL
(
(
)
)
–
–
CL
–
)
)
CL
12
–
–
12
12
12
)
)
is expressed in Equation 5:
is expressed in Equation 2:
–
)
)
–
)
)
12
12
)
)
=
=
=
1.58kΩ
12Vrating, 50mA reverse current
1W
]
]
April 29, 2010
(EQ. 1)
(EQ. 3)
(EQ. 4)
FN9100.7
(EQ. 6)
(EQ. 2)
(EQ. 5)
]