参数资料
型号: MAX5950ETJ+T
厂商: Maxim Integrated
文件页数: 9/28页
文件大小: 552K
描述: IC PWM CTRL HOT-SW 12V 32TQFN-EP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 热交换控制器
应用: 通用型,PCI Express?
内部开关:
电源电压: 8 V ~ 16 V,±5V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 带卷 (TR)
12V PWM Controller with Hot-Swap
_______________________________________________________________________________________   9
STARTUP SEQUENCING (FIGURE 1)
MAX5950 toc23c
2ms/div
DCEN0 = DCENI1 =
STARTUP
5V/div
OUT1
1V/div
OUT3
1V/div
OUT2
1V/div
PWREN SWITCHING FROM HIGH TO LOW
PGI = PGOOD3
5V/div
CSTART = 1礔
TRACKING (FIGURE 1)
MAX5950 toc23d
400祍/div
DCEN0 - DCENI_ =
STARTUP_
5V/div
OUT1
1V/div
OUT3
1V/div
OUT2
1V/div
PWREN SWITCHING FROM HIGH TO LOW
PGOOD_
5V/div
STARTUP FAULT
MAX5950 toc24a
20ms/div
DCEN0 =
DCENI1 =
STARTUP_
5V/div
OUT1
1V/div
OUT3
SHORTED
TO PGND
2V/div
OUT2
2V/div
PWREN SWITCHING FROM HIGH TO LOW
PGI = PGOOD3
5V/div
0V
0V
0V
0V
0V
MAX5950 toc24b
40ms/div
DCEN0 =
DCENI1 =
STARTUP_
5V/div
VOUT1
1V/div
T   H RTED T  P ND
PGI = PGOOD3
1V/div
0V
0V
0V
0V
0V
PWREN SWITCHING FROM HIGH TO LOW
MPWRGD
2V/div
MPWRFLT
2V/div
STARTUP FAULT
OVERLOAD RESPONSE
MAX5950 toc25a
4祍/div
I
OUT1
2A/div
LX
10V/div
DL
10V/div
OUT1
1V/div
STARTUP
5V/div
V
V
V
V
V
OVERLOAD RESPONSE (HICCUP MODE)
MAX5950 toc25b
400祍/div
IOUT1
2A/div
LX
10V/div
DL
10V/div
OUT1
1V/div
STARTUP
5V/div
SHORT-CIRCUIT RESPONSE
MAX5950 toc26a
2祍/div
VOUT1 SHORTED
TO PGND
1V/div
LX
10V/div
DL
5V/div
STARTUP
5V/div
SHORT-CIRCUIT RESPONSE
(HICCUP MODE)
MAX5950 toc26b
400祍/div
OUT1
SHORTED
TO PGND
1V/div
I
OUT1
2A/div
LX
10V/div
DL
10V/div
STARTUP
5V/div
Typical Operating Characteristics (continued)
(Typical Application Circuits. V
IN
= V
PWM_IN
= 12V, V
DREG
= V
REG
, V
PGND
= 0V, V
SYNCIN
= 0V, R
RT
= 49.9k&, R
ILIM
= 48.7k&, C
REG
= 2.2礔, T
A
= +25癈, unless otherwise noted.)
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