参数资料
型号: MAX15034BAUI+
厂商: Maxim Integrated Products
文件页数: 3/26页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 28TSSOP-EP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
PWM 型: 电流模式
输出数: 1 或 2
频率 - 最大: 1MHz
电源电压: 4.75 V ~ 5.5 V,5 V ~ 28 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 28-SOIC(0.173",4.40mm 宽)裸露焊盘
包装: 管件
Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V REG = V DD = V EN_ = +5V, T A = T J = T MIN to T MAX , unless otherwise noted, circuit of Figure 6. Typical values are at T A = +25°C.)
(Note 2)
PARAMETER
n-Channel Output Driver
Impedance
SYMBOL
R ON_N
CONDITIONS
MIN
TYP
0.45
MAX
1.35
UNITS
?
Output Driver Source Current
Output Driver Sink Current
I DH_ , I DL_
I DH_ , I DL_
2.5
5
A
A
Nonoverlap Time (Dead Time)
t NO
C DH_ or C DL_ = 5nF
f SW = 1MHz nominal, R RT = 12.4k ?
-7.5
-10
+7.5
+10
%
RT/CLKIN Output Voltage
RT/CLKIN Current Sourcing
Capability
RT/CLKIN Logic-High Threshold
RT/CLKIN Logic-Low Threshold
RT/CLKIN High Pulse Width
V RT/CLKIN
I RT/CLKIN
V RT/CLKIN_H
V RT/CLKIN_L
t RT/CLKIN
2.4
1.225
0.5
30
0.8
V
mA
V
V
ns
RT/CLKIN Synchronization
Frequency Range
f RT/CLKIN
200
2000
kHz
CURRENT LIMIT
Internal Average Current-Limit
Threshold
Reverse Average Current-Limit
Threshold
External Average Current-Limit
Threshold Adjustment
V CL_
V RCL_
V CL_ADJ
V CSP_ - V CSN_
V CSP_ - V CSN_
Resistor-divider connected from REG
to AVGLIMIT to AGND
20.4
-3.0
22.5
-1.53
V AVGLIMIT -
0.6/36
24.75
-0.1
mV
mV
V
AVGLIMIT Ground Threshold
Voltage
V AVGLIMIT_GND
550
mV
Leakage Current at AVGLIMIT
I AVGLIMIT
V AVGLIMIT = 3V
100
nA
DIGITAL FAULT INTEGRATION (DF_)
Number of Switching Cycles to
Shutdown in Current Limit
Number of Switching Cycles to
Recover from Shutdown
NS DF_
NR DF_
32,768
524,288
Clock
cycles
Clock
cycles
CURRENT-SENSE AMPLIFIER
CSP_ to CSN_ Input Resistance
R CS_
3.8
k ?
Common-Mode Range
Input Offset Voltage
Amplifier Gain
V CMR(CS)
V OS(CS)
A V(CS)
V IN = V REG = 4.75V to 5.5V or
V IN = 5V to 10V
V IN = 7V to 28V
-0.3
-0.3
100
36
+3.6
+5.5
V
V
μV
V/V
_______________________________________________________________________________________
3
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