MAX1856EUB+T Maxim Integrated Products, MAX1856EUB+T Datasheet - Page 3

• Manufacturer Part Number: MAX1856EUB+T
• Description: IC PWR SPLY PWM SLIC 10-UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX1856EUB+T

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 575kHz
• Duty Cycle: 94%
• Voltage - Supply: 3 V ~ 28 V
• Buck: No
• Boost: No
• Flyback: Yes
• Inverting: Yes
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Frequency-max: 575kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
(V
ELECTRICAL CHARACTERISTICS (continued)
(V
PWM CONTROLLER
Operating Input Voltage Range
FB Input Current
Current-Limit Threshold
CS Input Current
V
Shutdown Supply Current
REFERENCE AND LDO REGULATOR
LDO Output Voltage
REF to FB Voltage (Note 2)
REF Load Regulation
REF Undervoltage Lockout
Threshold
OSCILLATOR
Oscillator Frequency
Minimum EXT Pulse Width
Minimum SYNC Input Signal
Duty Cycle
Minimum SYNC Input
Low Pulse Width
Maximum SYNC Input
Rise/Fall Time
SYNC Input Frequency Range
SYNC/SHDN Falling Edge to
Shutdown Delay
SYNC/SHDN Input High Voltage
SYNC/SHDN Input Low Voltage
SYNC/SHDN Input Current
EXT Sink/Source Current
EXT On-Resistance
CC
CC
CC
= SYNC/SHDN, V
= SYNC/SHDN, V
Supply Current (Note 1)
PARAMETER
PARAMETER
_______________________________________________________________________________________
CC
CC
= 5V, V
= 5V, V
LDO
LDO
Wide Input Range, Synchronizable,
= 5V, R
SYMBOL
= 5V, R
SYMBOL
R
t
ON(EXT)
f
V
V
f
SHDN
SYNC
V
I
V
I
OSC
I
V
I
V
EXT
LDO
CC
REF
CS
FB
CC
CS
IH
IL
OSC
OSC
= 200kΩ, T
= 200kΩ, T
V
V
CS = GND
V
SYNC/SHDN = GND, V
R
R
I
Rising edge, 1% hysteresis (typ)
R
R
R
V
V
EXT forced to 2V
EXT high or low
REF
CC
FB
FB
SYNC/SHDN
SYNC/SHDN
LDO
REF
OSC
OSC
OSC
= -0.05V
= -0.05V, V
= V
= 0 to 400µA
= 10kΩ, C
= 400Ω
= 100kΩ ±1%
= 200kΩ ±1%
= 500kΩ ±1%
LDO
A
A
= -40°C to +85°C, unless otherwise noted.) (Note 3)
= 0°C to +85°C. Typical values are at T
= 5V
= 28V
CONDITIONS
CC
CONDITIONS
REF
PWM SLIC Power Supply
= 3V to 28V
= 0.22µF
CC
5V ≤ V
3V ≤ V
= 28V
CC
CC
≤ 28V
≤ 28V
4.50
2.65
1.22
MIN
425
222
MIN
A
100
2.7
1.0
2.0
85
85
3
= +25°C, unless otherwise noted.)
TYP
TYP
290
200
0.5
1.5
20
50
50
1
2
MAX
MAX
5.50
5.50
1.28
0.45
115
400
575
278
115
-10
200
500
5.5
1.2
3.0
28
50
45
10
1
6
5
UNITS
UNITS
kHz
kHz
mV
mV
µA
nA
µA
µA
µA
ns
ns
ns
µs
%
Ω
V
V
A
V
V
V
V
V
3