参数资料
型号: MAX8792ETD+T
厂商: Maxim Integrated Products
文件页数: 4/28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 = 0°C to +85°C , unless otherwise spec-
ified. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GATE DRIVERS
DH Gate Driver On-Resistance
DL Gate Driver On-Resistance
R ON(DH)
R ON(DL)
BST - LX forced to 5V
High state (pullup)
Low state (pulldown)
Low state (pulldown)
High state (pullup)
1.2
1.2
1.7
0.9
3.5
3.5
4
2
Ω
Ω
DH Gate Driver Source/
Sink Current
I DH
DH forced to 2.5V, BST - LX forced to 5V
1.5
A
DL Gate Driver Source Current
I DL(SOURCE) DL forced to 2.5V
1
A
DL Gate Driver Sink Current
I DL(SINK)
DL forced to 2.5V
2.4
A
Driver Propagation Delay
DL Transition Time
DH Transition Time
DH low to DL high
DL low to DH high
DL falling, C DL = 3nF
DL rising, C DL = 3nF
DH falling, C DH = 3nF
DH rising, C DH = 3nF
10
15
25
35
20
20
20
20
ns
ns
ns
Internal BST Switch On-Resistance
R BST
I BST = 10mA, V DD = 5V
4
7
Ω
INPUTS AND OUTPUTS
EN Logic-Input Threshold
EN Logic-Input Current
V EN
I EN
EN rising edge, hysteresis = 450mV (typ)
EN forced to GND or V DD , T A = +25°C
1.20
-0.5
1.7
2.20
+0.5
V
μA
High (5V V DD )
V CC -
0.4
SKIP Quad-Level Input Logic
Levels
V SKIP
Mid (3.3V)
Ref (2.0V)
3.0
1.7
3.6
2.3
V
Low (GND)
0.4
SKIP Logic-Input Current
I SKIP
SKIP forced to GND or V DD
-2
+2
μA
ELECTRICAL CHARACTERISTICS
(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
SYMBOL
CONDITIONS
MIN
MAX
UNITS
PWM CONTROLLER
Input Voltage Range
Quiescent Supply Current (V DD )
V IN
I DD + I CC
FB forced above REFIN
R TON = 97.5k Ω (600kHz)
V IN = 12V,
2
115
26
1.2
163
V
mA
On-Time
t ON
V FB = 1.0V
R TON = 200k Ω (300kHz)
250
306
ns
(Note 3)
R TON = 302.5k Ω (200kHz)
348
486
4
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