MAX5019-MAX5020 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX5019-MAX5020 Datasheet PDF : 14 Pages
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Current-Mode PWM Controllers with Integrated
Startup Circuit
ABSOLUTE MAXIMUM RATINGS
V+ to GND ……………………………………...……-0.3V to +120V
VDD to GND.………………………………….……….-0.3V to +40V
VCC to GND.………………….……………………-0.3V to +12.5V
FB, NDRV, SS_SHDN, CS to GND .……-0.3V to VCC + 0.3V
VDD and VCC Current …………………...…………………..20mA
NDRV Current Continuous...………………………………….25mA
NDRV Current for Less than 1µs..………….…………….……±1A
Continuous Power Dissipation (TA = +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C) .………....471mW
Operating Temperature Range…………..……...-40°C to +85°C
Storage Temperature Range……………..…….-65°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
(VDD = 13V, a 10µF capacitor connects VCC to GND, VCS = 0, V+ = 48V, 0.1µF capacitor connected from SS_SHDN to GND, NDRV
= open circuit, VFB = 3V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SUPPLY CURRENT
V+ Supply Current
SYMBOL
IV+(NS)
IV+(S)
V+ Supply Current After Startup
VDD Supply Current
V+ Shutdown Current
VDD Shutdown Current
PREREGULATOR/STARTUP
V+ Input Voltage
VDD Supply Voltage
INTERNAL REGULATORS (VCC)
IVDD(NS)
IVDD(S)
VCC Output Voltage
VCC Undervoltage Lockout
OUTPUT DRIVER
Peak Source Current
Peak Sink Current
NRDV High-Side Driver
Resistance
VCC_UVLO
ROH
CONDITIONS
VDD = 0, V+ = 110V, driver not switching
V+ = 110V, VDD = 0, FB = GND,
driver switching
V+ = 110V, VDD = 13V, FB = GND
VDD = 36V, driver not switching
VDD = 36V, driver switching, FB = GND
VSS_SHDN = 0, V+ = 110V
VSS_SHDN = 0
Powered from V+, ICC = 7.5mA, VDD = 0
Powered from VDD, ICC = 7.5mA
VCC falling
VCC = 11V (externally forced)
VCC = 11V (externally forced)
VCC = 11V, externally forced,
NDRV sourcing 50mA
MIN TYP MAX UNITS
0.8
1.6
mA
1.6
3.0
14
µA
0.9
1.6
mA
2.1
3.0
180
290
µA
4
20
µA
18
110
V
13
36
V
7.5
9.8 12.0
V
9.0 10.0 11.0
V
6.6
V
570
mA
1000
mA
4
12
Ω
NDRV Low-Side Driver
Resistance
ERROR AMPLIFIER
FB Input Resistance
FB Input Bias Current
Error Amplifier Gain (Inverting)
Closed-Loop 3dB Bandwidth
FB Input Voltage Range
ROL
VCC = 11V, externally forced,
NDRV sinking 50mA
RIN
IFB
AVCL
VFB = VSS_SHDN
1.6
4
Ω
50
kΩ
±1
µA
-20
V/V
200
kHz
2
3
V
2 _______________________________________________________________________________________
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