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參數(shù)資料
| 型號(hào)： | MAX5069B |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
| 中文描述： | 高頻率，電流模式PWM控制器，具有精確的振蕩器和雙FET驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 4/19頁 |
| 文件大?。?/td> | 236K |
| 代理商： | MAX5069B |
M
High-Frequenc y, Current-Mode PWM Controller
with Ac c urate Osc illator and Dual FET Drivers
4
_______________________________________________________________________________________
Note 1:
The MAX5069 is 100% tested at T
A
= +25°C. All limits over temperature are guaranteed by design.
Note 2:
The MAX5069A/B are intended for use in universal-input power supplies. The internal clamp circuit is used to prevent the
bootstrap capacitor (C1 in
Figure
1) from charging to a voltage beyond the absolute maximum rating of the device when
UVLO/EN is low. The maximum current to V
IN
(hence to clamp) when UVLO is low (device is in shutdown) must be external-
ly limited to 2mA. Clamp currents higher than 2mA may result in clamp voltages higher than 30V, thus exceeding the
absolute maximum rating for V
IN
. For the MAX5069C/D, do not exceed the 24V maximum operating voltage of the device.
Note 3:
Reference voltage (V
REF
) is measured with FB connected to COMP (see the
Functional Diagram
).
Note 4:
The SYNC frequency must be at least 25% higher than the programmed oscillator frequency.
Note 5:
The internal oscillator clock cycle.
PARAMETER
SYMBOL
f
SW
V
RT
CONDITIONS
MIN
25
TYP
MAX
1250
UNITS
kHz
V
NDRV_ Switching Frequency
RT Voltage
f
SW
= 10
11
/ (2 x R
RT
)
40k
< R
RT
< 500k
2.0
f
OSC
≤
500kHz
f
OSC
> 500kHz
f
OSC
≤
500kHz
f
OSC
> 500kHz
-2.5
-4
-4.5
-6
+2.5
+4
+4.5
+6
T
A
= +25
°
C
Oscillator Accuracy
T
A
= -40
°
C to +125
°
C
%
Maximum Duty Cycle
DEAD-TIME CONTROL (DT)
Dead Time
D
MAX
DT connected to REG5
100
%
t
DT
R
DT
= 24.9k
60
ns
Dead-Time Disable Voltage
V
DT_DISABLE
V
REG5
-
0.5V
V
Dead-Time Regulation Voltage
INTEGRATING FAULT PROTECTION (FLTINT)
FLTINT Source Current
FLTINT Shutdown Threshold
FLTINT Restart Threshold
SLOPE COMPENSATION
Slope Compensation
Slope-Compensation Range
V
DT
1.23
V
I
FLTINT
V
FLTINT_SD
V
FLTINT_RS
V
FLTINT
= 0V
V
FLTINT
rising
V
FLTINT
falling
60
2.8
1.6
μA
V
V
V
SLOPE
V
SLOPER
C
SLOPE
= 100pf, RT = 110k
15
mV/μs
mV/μs
0
90
Slope-Compensation Voltage
Range
V
SCOMP
0
2.7
V
ELECTRICAL CHARACTERISTICS (continued)
(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)
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| MAX5069DAUE | High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
| MAX5069CAUE | High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5069BAUE | 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX5069BAUE+ | 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX5069BAUE+T | 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX5069BAUE-T | 功能描述:電流型 PWM 控制器 High-Frequency Current-Mode PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX5069C | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:High-Frequency, Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers |
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