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Peak-Current-Mode Controllers. MAX17595 Datasheet

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Peak-Current-Mode Controllers. MAX17595 Datasheet






MAX17595 Controllers. Datasheet pdf. Equivalent




MAX17595 Controllers. Datasheet pdf. Equivalent





Part

MAX17595

Description

(MAX17595 - MAX17597) Peak-Current-Mode Controllers

Manufacture

Maxim Integrated Products

Datasheet
Download MAX17595 Datasheet


Maxim Integrated Products MAX17595

MAX17595; EVALUATION KIT AVAILABLE MAX17595/MAX17 596/MAX17597 Peak-Current-Mode Control lers for Flyback and Boost Regulators General Description The MAX17595–MAX1 7597 is a family of peak-currentmode co ntrollers for design of wide input-volt age flyback and boost regulators. The M AX17595 offers optimized input threshol ds for universal input AC-DC converters and telecom DC-DC (.


Maxim Integrated Products MAX17595

36V to 72V input range) power supplies. The MAX17596/MAX17597 offer input thres holds suitable for low-voltage DC-DC ap plications (4.5V to 36V). The MAX17597 implements a boost converter. All three controllers contain a built-in gate dr iver for external n-channel MOSFETs. Th e MAX17595–MAX17597 house an internal error amplifier with 1% accurate refer ence, eliminating th.


Maxim Integrated Products MAX17595

e need for an external reference. The sw itching frequency is programmable from 100kHz to 1MHz with an accuracy of 8%, allowing optimization of magnetic and f ilter components, resulting in compact and cost-effective power conversion. Fo r EMI-sensitive applications, the MAX17 595–MAX17597 family incorporates a pr ogrammable frequency dithering scheme, enabling low-EMI spr.



Part

MAX17595

Description

(MAX17595 - MAX17597) Peak-Current-Mode Controllers

Manufacture

Maxim Integrated Products

Datasheet
Download MAX17595 Datasheet




 MAX17595
MAX17595/MAX17596/
MAX17597
EVALUATION KIT AVAILABLE
Peak-Current-Mode Controllers
for Flyback and Boost Regulators
General Description
The MAX17595–MAX17597 is a family of peak-current-
mode controllers for design of wide input-voltage flyback
and boost regulators. The MAX17595 offers optimized
input thresholds for universal input AC-DC converters
and telecom DC-DC (36V to 72V input range) power
supplies. The MAX17596/MAX17597 offer input thresholds
suitable for low-voltage DC-DC applications (4.5V to 36V).
The MAX17597 implements a boost converter. All three
controllers contain a built-in gate driver for external
n-channel MOSFETs.
The MAX17595–MAX17597 house an internal error amplifier
with 1% accurate reference, eliminating the need for an
external reference. The switching frequency is programma-
ble from 100kHz to 1MHz with an accuracy of 8%, allow-
ing optimization of magnetic and filter components, resulting
in compact and cost-effective power conversion. For
EMI-sensitive applications, the MAX17595–MAX17597
family incorporates a programmable frequency dithering
scheme, enabling low-EMI spread-spectrum operation.
Users can start the power supply precisely at the desired
input voltage, implement input overvoltage protection,
and program soft-start time. A programmable slope com-
pensation scheme is provided to ensuree stability of the
peak-current-mode control scheme.
Hiccup-mode overcurrent protection and thermal
shutdown are provided to minimize dissipation in
overcurrent and overtemperature fault conditions.
Applications
Universal Input Offline AC-DC Power Supplies
● Wide-Range DC-Input Flyback/Boost Battery Chargers
Battery-Powered Applications
● Industrial and Telecom Applications
Benefits and Features
Programmable Switching Frequency Allows
Optimization of the Magnetic and Filter Components,
Resulting in Compact, Cost-Effective, Efficient
Isolated/Non-Isolated Power Supplies
100kHz to 1MHz Programmable Switching
Frequency with Optional Synchronization
Peak Current Mode Control Provides Excellent
Transient Response
-- Offline (Universal Input AC) and Telecom (36V to
72V) Flyback Controller—MAX17595
-- DC-DC (4.5V to 36V) Flyback Controller—
MAX17596
-- Nonsynchronous (4.5V to 36V) Boost PWM
Controller—MAX17597
3mm x 3mm TQFN Package
Programmable Frequency Dithering Enables Low-
EMI Spread-Spectrum Operation
Integrated Protection Features Enhance System
Reliability
Adjustable Current Limit with External Current-
Sense Resistor
Fast Cycle-By-Cycle Peak Current Limiting
Hiccup-Mode Short-Circuit Protection
Overtemperature Protection
Programmable Soft-Start and Slope Compensation
Input Overvoltage Protection
Ordering Information/Selector Guide appears at end of
data sheet.
19-6178; Rev 5; 5/17





 MAX17595
MAX17595/MAX17596/
MAX17597
Peak-Current-Mode Controllers
for Flyback and Boost Regulators
Absolute Maximum Ratings
VIN to SGND..........................................................-0.3V to +40V
VDRV to SGND................................. -0.3V to +16V (MAX17595)
VDRV to SGND......... -0.3V to +6V (MAX17596 and MAX17597)
NDRV to SGND..................................... -0.3V to +(VDRV + 0.3)V
EN/UVLO to SGND.................................. -0.3V to +(VIN + 0.3)V
OVI, RT, DITHER, COMP, SS, FB,
SLOPE to SGND.................................................... -0.3V to +6V
CS to SGND.............................................................-0.8V to +6V
PGND to SGND.....................................................-0.3V to +0.3V
Maximum Input/Output Current (Continuous)
VIN, VDRV..........................................................................100mA
NDRV (pulsed, for less than 100ns)........................... 1.5A/-0.9A
Continuous Power Dissipation TQFN (single-layer board)
(derate 20.8mW/NC above +70NC).............................1666mW
Operating Temperature Range.......................... -40NC to +125NC
Storage Temperature Range............................. -65NC to +150NC
Junction Temperature.......................................................+150NC
Lead Temperature (soldering, 10s).................................. +300NC
Soldering Temperature (reflow)........................................+260NC
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.
Package Thermal Characteristics (Note 1)
Junction-to-Ambient Thermal Resistance (qJA)...............48°C/W
Junction-to-Case Thermal Resistance (qJC)......................7°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(VIN = 12V (for the MAX17595, bring VIN up to 21V for startup), VCS = VSLOPE = VDITHER = VFB = VOVI = VSGND = VPGND = 0V,
VEN/UVLO = +2V; NDRV, SS, COMP are unconnected, RRT = 25kΩ, CVIN = 1µF, CVDRV = 1µF, TA = TJ = -40°C to +125°C, unless
otherwise noted. Typical values are at TA = TJ = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
INPUT SUPPLY (VIN)
VIN Voltage Range
VIN
MAX17595
MAX17596/MAX17597
8 
4.5  
29
36
V
VIN Bootstrap UVLO
Wakeup
VIN-UVR VIN rising #
MAX17595
MAX17596/MAX17597
18.5 20 21.5
3.8 4.1 4.4
V
VIN Bootstrap UVLO
Shutdown Level
VIN-UVF VIN falling $
MAX17595
MAX17596/MAX17597
6.5 7 7.5
3.6 3.9 4.2
V
VIN Supply Startup Current
(Under UVLO)
VIN Supply Shutdown
Current
IVIN-
STARTUP
IIN-SH
VIN < UVLO
VEN = 0V
  20 32 FA
  20 32 FA
VIN Supply Current
VIN Clamp Voltage
IIN-SW Switching, fSW = 400kHz
 2
mA
VINC
MAX17595, IVIN = 2mA sinking, VEN = 0V (Note
3)
30
33
36
V
ENABLE (EN)
EN Undervoltage Threshold
EN Input Leakage Current
VENR
VENF
IEN
VEN rising #
VEN falling $
VEN = 1.5V, TA = +25NC
1.16
1.1
-100
1.21
1.15
 
1.26
1.2
+100
V
nA
www.maximintegrated.com
Maxim Integrated 2





 MAX17595
MAX17595/MAX17596/
MAX17597
Peak-Current-Mode Controllers
for Flyback and Boost Regulators
Electrical Characteristics (continued)
(VIN = 12V (for the MAX17595, bring VIN up to 21V for startup), VCS = VSLOPE = VDITHER = VFB = VOVI = VSGND = VPGND = 0V,
VEN/UVLO = +2V; NDRV, SS, COMP are unconnected, RRT = 25kΩ, CVIN = 1µF, CVDRV = 1µF, TA = TJ = -40°C to +125°C, unless
otherwise noted. Typical values are at TA = TJ = +25°C.) (Note 2)
PARAMETER
INTERNAL LDO (VDRV)
VDRV Output Voltage
Range
SYMBOL
CONDITIONS
VDRV
8V < VIN < 15V and 0mA < IVDRV < 50mA
(MAX17595)
6V < VIN < 15V and 0mA < IVDRV < 50mA
(MAX17596/MAX17597)
MIN TYP MAX UNITS
7.1 7.4 7.7
4.7 4.9 5.1
V
VDRV Current Limit
IVDRV-MAX  
VDRV Dropout
VVDRV-DO
VIN = 4.5V, IVDRV = 20mA (MAX17596/
MAX17597)
OVERVOLTAGE PROTECTION (OVI)
OVI Overvoltage Threshold
VOVIR
VOVIF
OVI Masking Delay
tOVI-MD
OVI Input Leakage Current
OSCILLATOR (RT)
IOVI
VOVI rising #
VOVI falling $
 
VOVI = 1V, TA = +25NC
NDRV Switching Frequency
Range
fSW
 
NDRV Switching Frequency
Accuracy
 
 
Maximum Duty Cycle
DMAX
fSW = 400kHz
(MAX17595/MAX17596)
(MAX17597)
SYNCHRONIZATION (DITHER/SYNC)
Synchronization Logic-High
Input
VHI-SYNC
 
Synchronization Pulse
Width
  
Synchronization Frequency
Range
fSYNC
(MAX17595/MAX17596) (Note 4)
DITHERING RAMP GENERATOR (DITHER/SYNC)
Charging Current
 
Discharging Current
 
Ramp-High Trip Point
  
Ramp-Low Trip Point
  
70 100
4.2  
 
 
 
1.16
1.1
 
-100
1.21
1.15
2
 
1.26
1.2
 
+100
100 1000
-8  
+8
46 48 50
90 92.5 95
3 
 
50   
1.1 x fSW
1.8 x fSW
45 50 55
43 50 57
  2 
  0.4  
mA
V
V
Fs
nA
kHz
%
%
V
ns
Hz
FA
FA
V
V
www.maximintegrated.com
Maxim Integrated 3



Recommended third-party MAX17595 Datasheet






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