参数资料
型号: MAX5951ETJ+T
厂商: Maxim Integrated Products
文件页数: 5/25页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 32-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1MHz
占空比: 88%
电源电压: 4.5 V ~ 16 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: 32-WFQFN 裸露焊盘
包装: 带卷 (TR)
12V/5V Input Buck PWM Controller
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 12V or V IN = V REG = 5V, V DREG = V REG , V PGND = 0V, V SYNCIN = 0V, R RT = 100k ? , R ILIM = 60k ? , C REG = 2.2μF, T A = T J =
-40°C to +85°C, unless otherwise noted. Typical values are at T A = T J = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PWM DL DRIVER
Peak Source Current
Peak Sink Current
V DL = 0V, pulse width < 100ns,
V DREG = 5V
V DL = 5V, pulse width < 100ns,
V DREG = 5V
2
2
A
A
DL Resistance Sourcing
DL Resistance Sinking
Break-Before-Make Time
I DL = 50mA, V DREG = 5V
I DL = -50mA, V DREG = 5V
1
1
25
3
3
?
?
ns
THERMAL SHUTDOWN
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
T J rising
135
15
°C
°C
Note 1: Limits at -40°C are guaranteed by design and are not production tested.
Note 2: For 5V applications, connect REG directly to IN.
Typical Operating Characteristics
( Typical Operating Circuits . V IN = 12V or V IN = V REG = 5V, V DREG = V REG , V PGND = 0V, V SYNCIN = 0V, R RT = 49.9k ? , R ILIM = 48.7k ? ,
C REG = 2.2μF, T A = +25°C.)
1.30
1.27
1.24
1.21
1.18
1.15
DEFAULT DCENI THRESHOLD
vs. TEMPERATURE
808
804
800
796
792
788
SENSE THRESHOLD
vs. TEMPERATURE
5.15
5.10
5.05
5.00
4.95
4.90
4.85
REG OUTPUT VOLTAGE
vs. TEMPERATURE
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
_______________________________________________________________________________________
5
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