参数资料
型号: LTC4230CGN
厂商: Linear Technology
文件页数: 27/36页
文件大小: 384K
描述: IC CONTRLLR HOT SWAP TRPL 20SSOP
标准包装: 55
类型: 热交换控制器
应用: 通用
内部开关:
电源电压: 1.7 V ~ 16.5 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 20-SSOP(0.154",3.90mm 宽)
供应商设备封装: 20-SSOP
包装: 管件
27
LTC4230
 4230f
4
3
2
 1
10礎
FBn
R
ZX
LTC4230*
V
CCn
SENSEn
V
Z
 (TYP) = 26V
R
SENSE
V
CC
 > 15V
200礎
10礎
CHARGE
PUMP
R2
*ADDITIONAL DETAILS OMITTED FOR CLARITY
4230 F17
R1
V
OUT
LOGIC
Figure 17. Using an External Resistor to Limit
Zener Current in High V
CC
 Applications
Figure 18. Autoretry Application
HIGH SUPPLY VOLTAGE OPERATION
CONSIDERATIONS
The LTC4230 can be used with supply voltages ranging
from 1.7V to 16.5V. At high input supply voltages, the
internal charge pump produces a minimum gate drive
voltage of 7V for V
CC
 > 15V. This minimum voltage drive
is derived by an internal zener diode clamp circuit, as
shown in Figure 17. During PC board insertion or removal,
sufficient transient current may flow through this zener
diode. To limit the amount of current during transient
events, an optional small resistor between the LTC4230s
GATEn pin and the gate of the external MOSFET can be
used, as shown in Figure 17. A secondary benefit of this
component is to minimize the possibility of high frequency
parasitic oscillations in the power MOSFET.
APPLICATIO  S I FOR  ATIO
U
U
U
PCB EDGE
CONNECTOR
(MALE)
BACKPLANE
CONNECTOR
(FEMALE)
V
CC1
3.3V
LONG
V
CC2
2.5V
LONG
V
CC3
1.8V
LONG
SHORT
R
AUTO
1M
FAULT
GND
LONG
R
SENSE2
0.007&
CX2
100nF
CX1
100nF
RX2
10&
M2
IRF7413
V
CC1
GND
ON
FAULT
14
6
7
8
16
17
18
5
4
3
FB3
1
15
13
SENSE 1   GATE 1
TIMER
FILTER
V
CC2
SENSE 2   GATE 2
SENSE 3   GATE 3
V
CC3
RESET 3
2
R
SENSE3
0.007&
RX1
10&
R8
5.1k
R9
12k
M3
IRF7413
V
OUT1
3.3V
5A
V
OUT2
2.5V
5A
V
OUT3
1.8V
5A
R
SENSE1
0.007&
CX3
100nF
RX3
10&
C
TIMER
*
0.1礔
C
FILTER
**
15pF
C
AUTO
0.1礔
M1
IRF7413
Z3
Z2
Z1
* SYSTEM ON TIME: 6.2ms
**CIRCUIT BREAKER RESPONSE TIME: 19.5祍
Z1, Z2, Z3: Z1: SMAJ10
NOTE: M1 MOUNTED TO 300mm COPPER AREA
WITHOUT C
AUTO
 YIELDS 8% AND M1 CASE = 65癈
WITH C
AUTO
 = 0.1礔 YIELDS 4% and M1 CASE = 45癈
RESET 2
19
FB2
20
R7
10k
RESET 1
9
FB1
10
11
12
R10
11k
R11
12k
R6
10k
R12
18k
R13
12k
4230 F18
R5
10k
MASTER
RESET
3-INPUT
NOR GATE
礟 OR
SYSTEM LOGIC
C
OUT3
C
OUT2
C
OUT1
LTC4230
+
+
+
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LTC4230CGN#PBF IC CONTRLLR HOT SWAP TRPL 20SSOP
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LTC4230CGN#PBF 功能描述:IC CONTRLLR HOT SWAP TRPL 20SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型,PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V,12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP(12x12) 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF)
LTC4230CGN#TR 功能描述:IC CONTRLLR HOT SWAP TRPL 20SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP(3x3) 包装:管件
LTC4230CGN#TRPBF 功能描述:IC CONTRLLR HOT SWAP TRPL 20SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP(3x3) 包装:管件
LTC4230IGN 功能描述:IC CONTRLLR HOT SWAP TRPL 20SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型,PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V,12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP(12x12) 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF)
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