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参数资料
| 型号： | MAX5069EVKIT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/19页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX5069 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，隔离 |
| 输出电压： | 12V |
| 电流 - 输出： | 10A |
| 输入电压： | 36 ~ 72V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 500kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX5069 |
High-Frequency, Current-Mode PWM Controller
with Accurate Oscillator and Dual FET Drivers
ABSOLUTE MAXIMUM RATINGS
IN to PGND ............................................................-0.3V to +30V
IN to AGND.............................................................-0.3V to +30V
V CC to PGND..........................................................-0.3V to +13V
V CC to AGND..........................................................-0.3V to +13V
FB, COMP, CS, HYST, SYNC, REG5 to AGND ........-0.3V to +6V
UVLO/EN, RT, DT, SCOMP, FLTINT to AGND .........-0.3V to +6V
NDRVA, NDRVB to PGND ..........................-0.3V to (V CC + 0.3V)
AGND to PGND .....................................................-0.3V to +0.3V
Continuous Power Dissipation (T A = +70°C)
16-Pin TSSOP-EP (derate 21.3mW/°C above +70°C) ...1702mW
Operating Temperature Range..........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°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
(V IN = +12V for the MAX5069C/D, V IN = +23.6V for the MAX5069A/B at startup, then reduces to +12V, C IN = C REG5 = 0.1μF,
C VCC = 1μF, R RT = 100k ? , NDRV_ = floating, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
UNDERVOLTAGE LOCKOUT/STARTUP
Bootstrap UVLO Wake-Up Level
Bootstrap UVLO Shutdown Level
UVLO/EN Wake-Up Threshold
UVLO/EN Shutdown Threshold
HYST FET On-Resistance
HYST FET Leakage Current
IN Supply Current In
Undervoltage Lockout
IN Range
V SUVR
V SUVF
V ULR2
V ULF2
R DS(ON)_H
I LEAK_H
I START
V IN
V IN rising, MAX5069A/B
V IN falling, MAX5069A/B
UVLO/EN rising
UVLO/EN falling
MAX5069B/C only, sinking 50mA,
V UVLO/EN = 0V
V UVLO/EN = 2V, V HYST = 5V
V IN = +19V, V UVLO/EN < V ULF2
19.68
9.05
1.205
10.8
21.6
9.74
1.230
1.18
10
3
47
23.60
10.43
1.255
90
24.0
V
V
V
V
?
nA
μA
V
INTERNAL SUPPLIES (V CC and REG5)
V CC Regulator Set Point
V CCSP
V IN = +10.8V to +24V, V CC sourcing 1μA to 25mA
7.0
10.5
V
REG5 Output Voltage
V REG5
I REG5 = 0 to 1mA
4.85
5.00
5.15
V
REG5 Short-Circuit Current Limit
I REG5_SC
18
mA
IN Supply Current After Startup
Shutdown Supply Current
I IN
I VIN_SD
V IN = +24V
f SW = 1.25MHz
f SW = 100kHz
7
3
90
mA
μA
GATE DRIVER (NDRVA, NDRVB)
Driver Output Impedance
Z OUT(LOW) NDRVA/NDRVB sinking 100mA
Z OUT(HIGH) NDRVA/NDRVB sourcing 25mA
2
3
4
6
?
Driver Peak Output Current
I NDRV
Sinking
Sourcing
1000
650
mA
PWM COMPARATOR
Comparator Offset Voltage
Comparator Propagation Delay
Minimum On-Time
V OS_PWM
t PD_PWM
t ON(MIN)
V COMP > V CS
V CS = 0.1V
Includes t CS_BLANK
1.30
1.60
40
110
2.00
V
ns
ns
CURRENT-LIMIT COMPARATOR
Current-Limit Trip Threshold
V CS
298
314
330
mV
2
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