参数资料
型号: MAX17497AATE+T
厂商: Maxim Integrated
文件页数: 3/30页
文件大小: 0K
描述: IC OFF-LINE CONVERTER 16TQFN
产品培训模块: Obsolescence Mitigation Program
标准包装: 2,500
输出隔离: 隔离
频率范围: 235kHz ~ 265kHz
输入电压: 4.5 V ~ 29 V
工作温度: -40°C ~ 125°C
封装/外壳: 16-WFQFN 裸露焊盘
供应商设备封装: 16-TQFN-EP(3x3)
包装: 带卷 (TR)
MAX17497A/MAX17497B
AC-DC and DC-DC Peak Current-Mode Converters
with Integrated Step-Down Regulator
ELECTRICAL CHARACTERISTICS (continued)
(V IN = +15V, V EN/UVLO = +2V, COMPF = open, C IN = 1 F F, C VCC = 1 F F, T A = T J = -40 N C to +125 N C, unless otherwise noted. Typical
values are at T A = +25 N C.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
FLYBACK/BOOST CONVERTER
Flyback/Boost Switching
Frequency
Flyback/Boost Maximum Duty
Cycle
SSF Pullup Current
SSF Set Point Voltage
SSF Peak Current-Limit Enable
Threshold
EAFN Regulation Point
EAFN Input Bias Current
MAX17497A
MAX17497B
f SW = 250kHz (MAX17497A)
f SW = 500kHz (MAX17497B)
V SSF = 400mV
0V < V EAFN < 1.5V, T A = +25 N C
235
470
92
90
9
1.12
1.11
1.2
-100
250
500
94.5
92
10
1.22
1.17
1.22
265
530
97
94
11
1.24
1.21
1.24
+100
kHz
%
F A
V
V
V
nA
Error-Amplifier Open-Loop
Voltage Gain
90
dB
Error-Amplifier Transconductance
Error-Amplifier Source Current
Error-Amplifier Sink Current
Current-Sense Transresistance
IN Clamp Voltage
LXF DMOS Switch On-Resistance
(R DSON_LXF )
LXF DMOS Peak Current Limit
LXF DMOS Runaway Current
Limit
V COMPF = 2V, V RLIMF = 1V
V COMPF = 2V, V EAFN = 1V
V COMPF = 2V, V EAFN = 1.5V
EN/UVLO = SGND, I IN_ = 1mA (MAX17497A)
(Note 2)
I LXF = 200mA
RLIMF = 100K
RLIMF = 100K
1.5
80
80
0.45
31
1.62
1.9
1.8
120
120
0.5
33.5
175
1.9
2.3
2.1
210
210
0.55
36
380
2.23
2.6
mS
F A
F A
I
V
m I
A
A
LXF Leakage Current
Peak Switch Current Limit with
RLIMF Open
Runaway Switch Current Limit
with RLIMF Open
RLIMF Reference Current
V LXF = 65V, T A = +25 N C
0.35
0.39
9
0.1
0.45
0.5
10
2
0.54
0.6
11
F A
A
A
F A
Number of Flyback/Boost
Runaway Current-Limit Hits
Before Hiccup Timeout
Flyback/Boost Overcurrent
Hiccup Timeout
Maxim Integrated
1
32
#
ms
3
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