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| 型号： | MAX8791BGTA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC MOSF DRIVER 1PH SYNCH 8TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 配置： | 高端和低端，同步 |
| 输入类型： | 差分 |
| 延迟时间： | 14ns |
| 电流 - 峰： | 2.7A |
| 配置数： | 1 |
| 输出数： | 2 |
| 高端电压 - 最大（自引导启动）： | 36V |
| 电源电压： | 4.2 V ~ 5.5 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WQFN 裸露焊盘 |
| 供应商设备封装： | 8-TQFN-EP |
| 包装： | 带卷 (TR) |
Single-Phase, Synchronous MOSFET Drivers
ABSOLUTE MAXIMUM RATINGS
V DD to GND...............…………………….………….. -0.3V to +6V
SKIP to GND..................………………………………-0.3V to +6V
PWM to GND ................……………………………….-0.3V to +6V
DL to GND ..................................................-0.3V to (V DD + 0.3V)
BST to GND ............................................................-0.3V to +36V
DH to LX ....................................................-0.3V to (V BST + 0.3V)
BST to V DD .............................................................-0.3V to +30V
BST to LX ................…………………………………...-0.3V to +6V
Continuous Power Dissipation (T A = +70°C)
8-Pin 3mm x 3mm TQFN
(derate 23.8mW/°C above +70°C) .............................1904mW
Operating Temperature Range .........................-40°C to +105°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V DD = V SKIP = 5V, T A = -40 ° C to +105 ° C, unless otherwise noted. Typical values are at T A = +25 ° C.) (Note 1)
PARAMETER
Input Voltage Range
V DD Undervoltage
Lockout Threshold
SYMBOL
V DD
V UVLO(VDD)
CONDITIONS
Rising edge, PWM disabled below this level
Falling edge, PWM disabled below this level
MIN
4.20
3.0
TYP
3.7
3.5
MAX
5.50
4.0
UNITS
V
V
PWM = open; after the shutdown hold time has expired
0.08
0.2
Quiescent Supply
Current (V DD )
I DD
SKIP = GND, PWM = GND,
LX = GND (after zero crossing)
0.25
0.5
mA
DRIVERS
SKIP = GND or V DD , PWM = V DD , V BST = 5V
0.6
1.5
PWM Pulse Width
DL Propagation Delay
DH Propagation Delay
t ON(MIN)
t OFF(MIN)
t PWM-DL
t PWM-DH
Minimum on-time
Minimum off-time
PWM high to DL low
PWM low to DH low
50
300
10
14
ns
ns
ns
DL-to-DH Dead Time
DH-to-DL Dead Time
DL Transition Time
DH Transition Time
t DL-DH
t DH-DL
t F_DL
t R_DL
t F_DH
t R_DH
DL falling to DH rising
DH falling to DL rising
Falling, 3.0nF load
Rising, 3.0nF load
Falling, 3.0nF load
Rising, 3.0nF load
T A = 0°C to +85°C
T A = -40°C to +105°C
T A = 0°C to +85°C
T A = -40°C to +105°C
15
15
15
15
30
30
12
14
8
10
ns
ns
ns
ns
DH Driver On-Resistance
DL Driver On-Resistance
R ON(DH)
R ON(DL)
BST-LX forced to 5V
DL, high state (pullup)
DL, low state (pulldown)
DH, high state (pullup)
DH, low state (pulldown)
0.9
0.7
0.7
0.5
2.5
2.3
1.8
1.2
?
?
DH Driver Source Current
I DH_SOURCE DH forced to 2.5V, BST - LX forced to 5V
2.2
A
DH Driver Sink Current
I DH_SINK
DH forced to 2.5V, BST - LX forced to 5V
2.7
A
DL Driver Source Current I DL_SOURCE DL forced to 2.5V
2.7
A
DL Driver Sink Current
Zero-Crossing Threshold
I DL_SINK
V ZX
DL forced to 2.5V
GND - LX, SKIP = GND
8
3
A
mV
Boost On-Resistance
R ON(BST)
V DD = 5V, DH = LX = GND (pulldown state), I BST = 10mA
5
12
?
2
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