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MAX17499 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - (MAX17499 / MAX17500) Current-Mode PWM Controllers - Maxim Integrated Products

भाग संख्या MAX17499
समारोह (MAX17499 / MAX17500) Current-Mode PWM Controllers
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
पूर्व दर्शन
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MAX17499 pdf
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Current-Mode PWM Controllers with
Programmable Switching Frequency
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +30V
IN Clamp (internal shunt) Current .........................................5mA
VCC to GND ............................................................-0.3V to +13V
FB, COMP, UVLO/EN, RT, CS to GND .....................-0.3V to +6V
UFLG to GND .........................................................-0.3V to +30V
NDRV to GND.............................................-0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
10-Pin μMAX (derate 5.6mW/°C above +70°C) ........444.4mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range ............................-65°C to +150°C
Junction Temperature ......................................................+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
(VIN = +12V (for MAX17500, bring VIN up to 23.6V for startup), 10nF bypass capacitors at IN and VCC, R12 = 15kΩ (MAX17499A/
MAX17500A), R12 = 7.5kΩ (MAX17499B/MAX17500B), R15 = 1kΩ, C6 = 100nF (see the Typical Application Circuit), NDRV = open,
VUVLO/EN = +1.4V, VFB = +1.0V, COMP = open, VCS = 0V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA =
+25°C.) (Note 1)
PARAMETER
UVLO/STARTUP
Bootstrap UVLO Wake-Up Level
Bootstrap UVLO Shutdown Level
UVLO/EN Wake-Up Threshold
UVLO/EN Shutdown Threshold
UVLO/EN Input Current
UVLO/EN Hysteresis
IN Supply Current In UVLO
IN Input Voltage Range
UVLO/EN to UFLG Propagation
Delay (Figure 3)
UVLO/EN to NDRV Propagation
Delay (Figure 3)
Bootstrap UVLO Propagation
Delay
UFLG Low Output Voltage
UFLG High Output Leakage
Current
INTERNAL SUPPLY
VCC Regulator Set Point
IN Supply Current After Startup
Shutdown Supply Current
SYMBOL
CONDITIONS
VSUVR
VSUVF
VULR2
VULF2
IUVLO
VIN rising (MAX17500 only)
VIN falling (MAX17500 only)
UVLO/EN rising
UVLO/EN falling
VUVLO/EN 2V
ISTART
VIN
tEXTR
tEXTF
tBUVR
tBUVF
VUFLG
VIN = 19V, MAX17500 only when in
bootstrap UVLO
MAX17499 only
UVLO/EN steps up from 1V to 1.4V
UVLO/EN steps down from 1.4V to 1V
UVLO/EN steps up from 1V to 1.4V
UVLO/EN steps down from 1.4V to 1V
VIN steps up from 9V to 24V (MAX17500
only)
VIN steps down from 24V to 9V
(MAX17500 only)
IUFLG = 5mA sinking
VUFLG = 25V
VCCSP
IIN
VIN = 10.8V to 24V, sinking 1μA to 20mA
from VCC
VIN = 24V
UVLO/EN = low
MIN
19.68
9.05
1.215
1.14
-50
9.5
150
7.0
TYP
21.6
9.74
1.23
1.17
60
50
3
0.6
3
210
5
1
0.1
2
50
MAX UNITS
23.60
10.43
1.245
1.20
+50
90
24.0
10
300
V
V
V
V
nA
mV
μA
V
μs
ms
μs
μs
1.5 V
1 μA
10.5 V
4 mA
90 μA
2 _______________________________________________________________________________________
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