参数资料
型号: MAX13256EVKIT#
厂商: Maxim Integrated
文件页数: 3/17页
文件大小: 0K
描述: KIT EVAL FOR MAX13256
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,隔离
输出电压: 6.8 ~ 34.8 V
电流 - 输出: 300mA
输入电压: 8 ~ 36 V
稳压器拓扑结构: 全桥式
频率 - 开关: 425kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: MAX13256
MAX13256
36V H-Bridge Transformer
Driver for Isolated Supplies
ELECTRICAL CHARACTERISTICS (continued)
(V DD = 8V to 36V, V EN = 0V, T A = -40 N C to +125 N C, unless otherwise noted. Typical values are at T A = +25 N C.) (Note 2)
PARAMETER
ST1, ST2 Current Limit
ST1, ST2 Leakage Current
SYMBOL
I LIM
I LKG
CONDITIONS
R LIM = 1000 I
R LIM = 3010 I
V EN = 3.3V, V CLK = 0V,
V ST1 = V ST2 = 0V or V DD
MIN
500
165
-1
TYP
650
215
MAX
800
265
+1
UNITS
mA
F A
LOGIC SIGNALS (CLK, EN , FAULT )
Input Logic-High Voltage
Input Logic-Low Voltage
V IH
V IL
2
0.8
V
V
Input Leakage Current
FAULT Output Logic-Low
Voltage
FAULT Leakage Current
I IL
V OL
I LKGF
V CLK = V EN = 5.5V or 0V
I FAULT = 10mA
V FAULT = 36V, FAULT deasserted
-1
+1
1
10
F A
V
F A
AC CHARACTERISTICS
Switching Frequency
CLK Input Frequency
ST1/ST2 Duty Cycle
f SW
f EXT
D TC
V CLK = 0V, measured at ST1/ST2 outputs
External clocking
Internal or external clocking
255
200
49
425
50
700
2000
51
kHz
kHz
%
ST1/ST2 Rise Time
ST1/ST2 Fall Time
Crossover Dead Time
t RISE
t FALL
t DEAD
ST1/ ST2 = 20% to 80% of V DD , R L = 1k I ,
C L = 50pF, Figure 1a
ST1/ST2 = 80% to 20% of V DD , R L = 1k I ,
C L = 50pF, Figure 1a
R L = 200 I , Figure 1b
30
100
100
ns
ns
ns
Watchdog Timeout
Current-Limit Blanking Time
Current-Limit Autoretry Time
t WDOG
t BLANK
t RETRY
(Note 4)
Figure 2
Figure 2
20
0.73
23.4
32
1.2
38.4
55
2.0
64.0
F s
ms
ms
PROTECTION
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
T SHDN
T SHDN_HYS
+160
10
N C
N C
Note 2: All units are production tested at T A = +25 N C. Specifications over temperature are guaranteed by design.
Note 3: If V DD is greater than 27V, see the Snubber section.
Note 4: See the Watchdog section.
Maxim Integrated
3
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