数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

ISL6116CBZA 数据表(PDF) 5 Page - Intersil Corporation

部件名 ISL6116CBZA
功能描述  Power Distribution Controllers
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  INTERSIL [Intersil Corporation]
网页  http://www.intersil.com/cda/home
标志 INTERSIL - Intersil Corporation

ISL6116CBZA 数据表(HTML) 5 Page - Intersil Corporation

  ISL6116CBZA Datasheet HTML 1Page - Intersil Corporation ISL6116CBZA Datasheet HTML 2Page - Intersil Corporation ISL6116CBZA Datasheet HTML 3Page - Intersil Corporation ISL6116CBZA Datasheet HTML 4Page - Intersil Corporation ISL6116CBZA Datasheet HTML 5Page - Intersil Corporation ISL6116CBZA Datasheet HTML 6Page - Intersil Corporation ISL6116CBZA Datasheet HTML 7Page - Intersil Corporation ISL6116CBZA Datasheet HTML 8Page - Intersil Corporation ISL6116CBZA Datasheet HTML 9Page - Intersil Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 12 page
background image
5
February 6, 2007
Description and Operation
The members of this family are single power supply
distribution controllers for generic hot swap applications
across the +2.5V to +12V supply range. The ISL6115 is
targeted for +12V switching applications whereas the
ISL6116 is targeted for +5V, the ISL6117 for +3.3V and the
ISL6120 for +2.5V applications. Each IC has a hardwired
undervoltage (UV) threshold level approximately 17% lower
than the stated voltages.
These ICs feature a highly accurate programmable
overcurrent (OC) detecting comparator, programmable
current regulation (CR) with programmable time delay to latch
off, and programmable soft-start turn-on ramp all set with a
minimum of external passive components. The ICs also
include severe OC protection that immediately shuts down the
MOSFET switch should a rapid load current transient such as
a near dead short cause the CR Vth to exceed the
programmed level by 150mV. Additionally, the ICs have a UV
indicator and an OC latch indicator. The functionality of the
PGOOD feature is enabled once the IC is biased, monitoring
and reporting any UV condition on the ISEN pin.
Upon initial power up, the IC can either isolate the voltage
supply from the load by holding the external N-Channel
MOSFET switch off or apply the supply rail voltage directly to
the load for true hot swap capability. The PWRON pin must
be pulled low for the device to isolate the power supply from
the load by holding the external N-channel MOSFET off.
With the PWRON pin held high or floating the IC will be in
true hot swap mode. In both cases the IC turns on in a soft-
start mode protecting the supply rail from sudden in-rush
current.
At turn-on, the external gate capacitor of the N-Channel
MOSFET is charged with a 10
μA current source resulting in
a programmable ramp (soft-start turn-on). The internal
ISL6115 charge pump supplies the gate drive for the 12V
supply switch driving that gate to ~VDD +5V, for the other
three ICs the gate drive voltage is limited to the chip bias
voltage, VDD.
Load current passes through the external current sense
resistor. When the voltage across the sense resistor exceeds
the user programmed CR voltage threshold value, (see
Table 1 for RISET programming resistor value and resulting
nominal current regulation threshold voltage, VCR) the
controller enters its current regulation mode. At this time, the
time-out capacitor, on CTIM pin is charged with a 20μA current
source and the controller enters the current limit time to latch-
off period. The length of the current limit time to latch-off
duration is set by the value of a single external capacitor (see
Table 2) for CTIM capacitor value and resulting nominal
current limited time out to latch-off duration placed from the
CTIM pin (pin 6) to ground. The programmed current level is
held until either the OC event passes or the time out period
expires. If the former is the case then the N-Channel
MOSFET is fully enhanced and the CTIM capacitor is
discharged. Once CTIM charges to 1.87V, signaling that the
time out period has expired an internal latch is set whereby
the FET gate is quickly pulled to 0V turning off the N-Channel
MOSFET switch, isolating the faulty load.
This IC responds to a severe overcurrent load (defined as a
voltage across the sense resistor >150mV over the OC Vth set
point) by immediately driving the N-Channel MOSFET gate to
0V in about 10
μs. The gate voltage is then slowly ramped up
turning on the N-Channel MOSFET to the programmed current
regulation level; this is the start of the time out period.
Upon a UV condition the PGOOD signal will pull low when
tied high through a resistor to the logic or VDD supply. This
pin is a UV fault indicator. For an OC latch off indication,
monitor CTIM, pin 6. This pin will rise rapidly from 1.9V to
VDD once the time out period expires.
See Figures 12 to 16 for waveforms relevant to text.
The IC is reset after an OC latch-off condition by a low level
on the PWRON pin and is turned on by the PWRON pin
being driven high.
CURRENT REGULATION DURATION/POWER GOOD
CTIM Charging Current
CTIM_ichg0
VCTIM = 0V
16
20
23
μA
CTIM Fault Pull-Up Current (Note 3)
-20
-
mA
Current Limit Time-Out Threshold Voltage
CTIM_Vth
CTIM Voltage
1.3
1.8
2.3
V
Power Good Pull Down Current
PG_Ipd
VOUT = 0.5V
-
8
-
mA
Electrical Specifications
VDD = 12V, TA = TJ = 0°C to +85°C, Unless Otherwise Specified
(Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
TABLE 1.
RISET RESISTOR
NOMINAL OC VTH
10k
Ω
200mV
4.99k
Ω
100mV
2.5k
Ω
50mV
750
Ω
15mV
NOTE: Nominal Vth = RISET x 20μA.
TABLE 2.
CTIM CAPACITOR
NOMINAL CURRENT LIMITED PERIOD
0.022
μF2ms
0.047
μF4.4ms
0.1
μF9.3ms
NOTE: Nominal time-out period = CTIM x 93kΩ.
ISL6115, ISL6116, ISL6117, ISL6120


类似零件编号 - ISL6116CBZA

制造商部件名数据表功能描述
logo
Intersil Corporation
ISL6116CBZA INTERSIL-ISL6116CBZA Datasheet
321Kb / 13P
   Power Distribution Controllers
ISL6116CBZA INTERSIL-ISL6116CBZA Datasheet
319Kb / 13P
   Power Distribution Controllers
April 29, 2010
ISL6116CBZA INTERSIL-ISL6116CBZA Datasheet
319Kb / 13P
   Power Distribution Controllers
April 29, 2010
logo
Renesas Technology Corp
ISL6116CBZA RENESAS-ISL6116CBZA Datasheet
716Kb / 14P
   Power Distribution Controllers
More results

类似说明 - ISL6116CBZA

制造商部件名数据表功能描述
logo
Intersil Corporation
HIP1015 INTERSIL-HIP1015 Datasheet
200Kb / 10P
   Power Distribution Controllers
ISL6115CB INTERSIL-ISL6115CB Datasheet
319Kb / 13P
   Power Distribution Controllers
April 29, 2010
HIP1015 INTERSIL-HIP1015_03 Datasheet
190Kb / 9P
   Power Distribution Controllers
logo
Renesas Technology Corp
ISL6115 RENESAS-ISL6115 Datasheet
716Kb / 14P
   Power Distribution Controllers
logo
Intersil Corporation
ISL6115CBZA-T INTERSIL-ISL6115CBZA-T Datasheet
321Kb / 13P
   Power Distribution Controllers
April 29, 2010
ISL6115CB INTERSIL-ISL6115CB Datasheet
319Kb / 13P
   Power Distribution Controllers
April 29, 2010
logo
Renesas Technology Corp
HIP1015 RENESAS-HIP1015 Datasheet
586Kb / 9P
   Power Distribution Controllers
March 2003
logo
Intersil Corporation
ISL6115 INTERSIL-ISL6115 Datasheet
321Kb / 13P
   Power Distribution Controllers
ISL6115A INTERSIL-ISL6115A Datasheet
220Kb / 10P
   12V Power Distribution Controllers
ISL6115AIBZ INTERSIL-ISL6115AIBZ Datasheet
336Kb / 10P
   12V Power Distribution Controllers
April 23, 2010
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com