参数资料
型号: MAX5066AUI+T
厂商: Maxim Integrated Products
文件页数: 3/22页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 28TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电流模式
输出数: 2
频率 - 最大: 1MHz
电源电压: 4.75 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: 带卷 (TR)
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 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OSCILLATOR
Switching Frequency
f SW
1MHz (max)
switching
frequency per
phase
R RT = 12.4k ?
R RT = 127k ?
1000
100
kHz
Switching Frequency Accuracy
f SW = 250kHz nominal, R RT = 50k ?
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
Average Current-Limit Threshold
Reverse Current-Limit Threshold
Cycle-by-Cycle Current-Limit
Threshold
V CL_
V RCL_
V CLpk_
V CSP_ - V CSN_
V CSP_ - V CSN_
V CSP_ - V CSN_
20.4
-3.13
22.5
-1.63
52.5
24.75
-0.1
mV
mV
mV
Cycle-by-Cycle Current-Limit
Response Time
t R
260
ns
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_
1.9835
k ?
Common-Mode Range
Input Offset Voltage
Amplifier Gain
-3dB Bandwidth
CSP_ Input Bias Current
V CMR(CS)
V OS(CS)
A V(CS)
f -3dB
I CSA(IN)
V IN = V REG = 4.75V to 5.5V or
V IN = 5V to 10V
V IN = 7V to 28V
V CSP_ = 5.5V, sinking
V CSP_ = 0V, sourcing
-0.3
-0.3
100
36
4
+3.6
+5.5
120
30
V
V
μV
V/V
MHz
μA
_______________________________________________________________________________________
3
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