参数资料
型号: MAX8792ETD+T
厂商: Maxim Integrated Products
文件页数: 5/28页
文件大小: 0K
描述: IC PWM CTRLR STEP-DWN 14TDFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
应用: PWM 控制器
输入电压: 2 V ~ 26 V
电源电压: 4.5 V ~ 5.5 V
电流 - 电源: 700µA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 14-WFDFN 裸露焊盘
供应商设备封装: 14-TDFN-EP(3x3)
包装: 标准包装
其它名称: MAX8792ETD+TDKR
Single Quick-PWM Step-Down
Controller with Dynamic REFIN
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V IN = 12V, V DD = V CC = V EN = 5V, REFIN = ILIM = REF, SKIP = GND. T A = -40°C to +85°C , unless otherwise
specified.) (Note 1)
PARAMETER
Minimum Off-Time
REFIN Voltage Range
FB Voltage Range
FB Voltage Accuracy
SYMBOL
t OFF(MIN)
V REFIN
V FB
V FB
CONDITIONS
(Note 3)
(Note 2)
(Note 2)
V REFIN = 0.5V
Measured at FB,
V IN = 2V to 26V, V REFIN = 1.0V
SKIP = V DD
V REFIN = 2.0V
MIN
0
0
0.49
0.99
1.985
MAX
350
V REF
V REF
0.51
1.01
2.015
UNITS
ns
V
V
V
REFERENCE
Reference Voltage
V REF
V CC = 4.5V to 5.5V
1.985
2.015
V
FAULT DETECTION
Output Overvoltage-Protection
Trip Threshold
Output Undervoltage-Protection
Trip Threshold
Output Undervoltage
Fault-Propagation Delay
PGOOD Output Low Voltage
V CC Undervoltage Lockout
Threshold
OVP
UVP
t UVP
V UVLO(VCC)
With respect to the internal target voltage
(error comparator threshold); rising edge;
hysteresis = 50mV
With respect to the internal target voltage
(error comparator threshold);
falling edge; hysteresis = 50mV
FB forced 25mV below trip threshold
I SINK = 3mA
Rising edge, PWM disabled below this level;
hysteresis = 100mV
250
-240
80
3.95
350
-160
400
0.4
4.45
mV
mV
μs
V
V
CURRENT LIMIT
ILIM Input Range
0.4
V REF
V
Current-Limit Threshold
Ultrasonic Frequency
V ILIMIT
V ILIM = 0.4V
ILIM = REF (2.0V)
SKIP = open (3.3V); V FB = V REFIN + 50mV
17
90
17
23
110
mV
kHz
GATE DRIVERS
DH Gate Driver On-Resistance
DL Gate Driver On-Resistance
Internal BST Switch On-Resistance
R ON(DH)
R ON(DL)
R BST
BST - LX forced Low state (pulldown)
to 5V High state (pullup)
High state (pullup)
Low state (pulldown)
I BST = 10mA, V DD = 5V
3.5
3.5
4
2
7
Ω
Ω
Ω
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5
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