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MAX5068 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Current-Mode PWM Controller - Maxim Integrated Products

भाग संख्या MAX5068
समारोह Current-Mode PWM Controller
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
पूर्व दर्शन
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<?=MAX5068?> डेटा पत्रक पीडीएफ

MAX5068 pdf
High-Frequency, Current-Mode PWM Controller
with Accurate Programmable Oscillator
ABSOLUTE MAXIMUM RATINGS
IN to PGND ............................................................-0.3V to +30V
IN to AGND.............................................................-0.3V to +30V
VCC to PGND..........................................................-0.3V to +13V
VCC 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
NDRV to PGND...........................................-0.3V to (VCC + 0.3V)
AGND to PGND .....................................................-0.3V to +0.3V
Continuous Power Dissipation
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
(VIN = +12V for the MAX5068B/E/F; VIN = +23.6V for the MAX5068A/C/D at startup, then reduces to +12V; CIN = CREG5 = 0.1µF;
CVCC = 1µF; RRT = 100k; NDRV = floating; TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
UNDERVOLTAGE LOCKOUT/STARTUP
Bootstrap UVLO Wake-Up Level
VSUVR
Bootstrap UVLO Shutdown Level VSUVF
UVLO/EN Wake-Up Threshold
VULR2
UVLO/EN Shutdown Threshold
VULF2
VIN rising, MAX5068A/C/D only
VIN falling, MAX5068A/C/D only
VUVLO/EN rising
VUVLO/EN falling
19.68
9.05
1.205
21.6
9.74
1.230
1.18
23.60
10.43
1.255
V
V
V
V
HYST FET On-Resistance
HYST FET Leakage Current
RDS(ON)_H
ILEAK_H
MAX5068A/B/D/F only, sinking 50mA,
VUVLO/EN = 0V
VUVLO/EN = 2V, VHYST = 5V
10
3 nA
IN Supply Current In
Undervoltage Lockout
ISTART VIN = +19V, VUVLO/EN < VULF2
47 90
µA
IN Range
VIN
INTERNAL SUPPLIES (VCC and REG5)
VCC Regulator Set Point
VCCSP VIN = +10.8V to +24V, VCC sourcing 1µA to 25mA
REG5 Output Voltage
VREG5 IREG5 = 0 to 1mA
REG5 Short-Circuit Current Limit IREG5_SC
IN Supply Current After Startup
IIN VIN = +24V
fSW = 1.25MHz
fSW = 100kHz
Shutdown Supply Current
IIN_SD
GATE DRIVER (NDRV)
Driver Output Impedance
ZOUT(LOW) NDRV sinking 100mA
ZOUT(HIGH) NDRV sourcing 25mA
Driver Peak Output Current
INDRV
Sinking
Sourcing
10.8 24.0
7.0 10.5
4.85 5.00 5.15
18
5
2.5
90
2
3
1000
650
4
6
V
V
V
mA
mA
µA
mA
PWM COMPARATOR
Comparator Offset Voltage
VOS_PWM
Comparator Propagation Delay
tPD_PWM
Minimum On-Time
tON(MIN)
CURRENT-LIMIT COMPARATOR
Current-Limit Trip Threshold
VCS
VCOMP - VCS
VCS = 0.1V
Includes tCS_BLANK
1.30 1.60 2.00
40
110
V
ns
ns
298 314 330
mV
2 _______________________________________________________________________________________

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डाउनलोड[ MAX5068 Datasheet.PDF ]


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