参数资料
型号: ISL6142IB
厂商: Intersil
文件页数: 1/23页
文件大小: 0K
描述: IC CTRLR HOT PLUG NEG 14-SOIC
标准包装: 50
类型: 热交换控制器
应用: 通用型 VoIP
内部开关:
电源电压: 36 V ~ 72 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOICN
包装: 管件
ISL6142, ISL6152
Data Sheet
January 29, 2013
FN9086.2
Negative Voltage Hot Plug Controller
The ISL6142, ISL6152 are 14 pin, negative voltage hot plug
controllers that allow a board to be safely inserted and removed
from a live backplane. Inrush current is limited to a programmable
value by controlling the gate voltage of an external N-channel pass
transistor. The pass transistor is turned off if the input voltage is
less than the Under-Voltage threshold, or greater than the
Over-Voltage threshold. The PWRGD/PWRGD outputs can be
used to directly enable a power module. When the Gate and
DRAIN voltages are both considered good, the output is latched in
the active state.
The IntelliTrip? electronic circuit breaker and programmable
current limit features protect the system against short circuits.
When the Over-Current threshold is exceeded, the output current
is limited for a time-out period before the circuit breaker trips and
shuts down the FET. The time-out period is programmable with an
external capacitor connected to the CT pin. If the fault disappears
before the programmed time-out, normal operation resumes. In
addition, the IntelliTrip? electronic circuit breaker has a fast Hard
Fault shutdown, with a threshold set at 4 times the Over-Current
trip point. When activated, the GATE is immediately turned off and
then slowly turned back on for a single retry.
The IS+, IS-, and IS OUT pins combine to provide a load current
monitor feature that presents a scaled version of the load current at
the IS OUT pin. Current to voltage conversion is accomplished by
placing a resistor (R9) from IS OUT to the negative input (-48V).
Applications
Features
? Operates from -18V to -80V (-100V Absolute Max Rating)
? Programmable Inrush Current
? Programmable Time-Out
? Programmable Current Limit
? Programmable Over-Voltage Protection
? Programmable Under-Voltage Protection
- 135 mV of hysteresis ~4.7V of hysteresis at the power supply
? V DD Under-Voltage Lock-Out (UVLO) ~ 16.5V
? IntelliTrip? Electronic Circuit Breaker distinguishes between
severe and moderate faults
- Fast shutdown for short circuit faults with a single retry (fault
current > 4X current limit value).
? FAULT pin reports the occurrence of an Over-Current Time-Out
? Disable input controls GATE shutdown and resets Over-Current
fault latch
? Load Current Monitor Function
- IS OUT provides a scaled version of the load current
- A resistor from IS OUT to -V IN provides current to voltage
conversion
? Power Good Control Output
- Output latched “good” when DRAIN and GATE voltage
thresholds are met.
- (PWRGD active low: ISL6142 (L version)
- PWRGD active high: ISL6152 (H version)
?
?
?
VoIP (Voice over Internet Protocol) Servers
Telecom systems at -48V
Negative Power Supply Control
? Pb-Free (RoHS Compliant)
Typical Application
?
+24V Wireless Base Station Power
LOGIC
GND
GND
Related Literature
? ISL6140/50EVAL1 Board Set, Document AN9967
? ISL6141/51 Hot Plug Controller, Document FN9079
? ISL6140/50 Hot Plug Controller, Document FN9039
SUPPLY
R10
R4
R5
FAULT
DIS
IS OUT
UV
V DD
ISL6142/ISL6152
PWRGD
PWRGD
?
ISL6116 Hot Plug Controller, Document FN9100
OV
NOTE: See www.intersil.com/hotplug for more information.
R6
CT V EE IS-
IS+ SENSE GATE
DRAIN
Pinout
ISL6142 OR ISL6152 (14 LEAD SOIC)
R9
C3
R7
R8
C1
R3 C2
R2
CL
RL
LOAD
PWRGD/PWRGD 1
FAULT 2
Top View
14
13
V DD
CT
-48V IN
R1
Q1
-48V OUT
DIS 3
OV 4
UV 5
ISL6142/52
12
11
10
IS OUT
DRAIN
GATE
R1 = 0.02 ? (1%)
R2 = 10 ? (5%)
R3 = 18k ? (5%)
R4 = 549k ? (1%)
R6 = 10k ? (1%)
R7 = R8 = 400 ? (1%)
R9 = 4.99k ? (1%)
R10 = 5.1k ? (10%)
C2 = 3.3nF (100V)
C3 = 1500pF (25V)
Q1 = IRF530
CL = 100μF (100V)
IS-
6
9
IS+
R5 = 6.49k ? (1%)
C1 = 150nF (25V)
RL = Equivalent load
V EE 7
1
8
SENSE
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright ? Intersil Americas LLC 2002, 2004, 2013. All Rights Reserved
Intersil (and design) and Intellitrip? are trademarks owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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