参数资料
型号: MAX1716EEG+
厂商: Maxim Integrated Products
文件页数: 3/33页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 24-QSOP
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
频率 - 最大: 550kHz
占空比: 100%
电源电压: 2 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 ~ 85°C
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
包装: 管件
High-Speed, Adjustable, Synchronous Step-Down
Controllers with Integrated Voltage Positioning
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = +15V, V CC = V DD = 5V, SKIP = V CC , VPS = PGND, T A = 0 ° C to +85 ° C , unless otherwise noted. Typical
values are at T A = +25 ° C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
BIAS AND REFERENCE
Quiescent Supply Current (V CC )
Quiescent Supply Current (V DD )
I CC
I DD
Measured at V CC , FB forced above the
regulation point
Measured at V DD , FB forced above the
regulation point
700
<1
950
5
μ A
μ A
Quiescent Supply Current (V+)
Shutdown Supply Current (V CC )
Shutdown Supply Current (V DD )
Shutdown Supply Current (V+)
I+
SHDN = GND
SHDN = GND
SHDN = GND, V CC = V DD = 0 or 5V
25
<1
<1
<1
40
5
5
5
μ A
μ A
μ A
μ A
Reference Voltage
V REF
V CC = 4.5V to 5.5V, no external REF load
1.98
2
2.02
V
Reference Load Regulation
I REF = 0 to 50 μ A
0.01
V
REF Sink Current
REF Fault Lockout Voltage
I REF
REF in regulation
Falling edge
10
1.6
μ A
V
FAULT PROTECTION
Output Overvoltage Fault
Threshold (Note 5)
Measured at FB
MAX1716
MAX1855
1.8
1.97
1.9
2.0
2.0
2.03
V
Output Overvoltage Fault
Propagation Delay (Note 5)
FB forced to 2% above trip threshold
(MAX1716/MAX1855 only)
1.5
μ s
Output Undervoltage Fault
Threshold (Foldback)
Output Undervoltage Fault
Propagation Delay
FB forced to 2% below trip threshold
35
40
10
45
%
μ s
Output Undervoltage Fault
Blanking Time (Foldback)
From SHDN signal going high
10
30
ms
Current-Limit Threshold
(Positive, Default)
V ITH
V PGND - V CS , ILIM = V CC
110
120
130
mV
Current-Limit Threshold
(Positive, Adjustable)
V ITH
V PGND - V CS
V ILIM = 0.5V
V ILIM = 2V (REF)
40
170
50
200
60
230
mV
Negative Current-Limit
Threshold
Zero-Crossing Current-Limit
Threshold
Thermal Shutdown Threshold
V PGND - V CS
V PGND - V CS
Hysteresis = 10 ° C
-1.2 ×
V ITH
3
150
mV
mV
° C
V CC Undervoltage Lockout
Threshold
Rising edge, hysteresis = 20mV, switching
disabled below this level
4.0
4.45
V
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3
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