MAX5051AUI+ Maxim Integrated Products, MAX5051AUI+ Datasheet - Page 3

• Manufacturer Part Number: MAX5051AUI+
• Description: IC PWR SPLY CNTRLR 28-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX5051AUI+

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 500kHz
• Duty Cycle: 48%
• Voltage - Supply: 11 V ~ 76 V
• Buck: No
• Boost: Yes
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Frequency-max: 500kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(AVIN = 12V, PVIN = 12V, V
C
ence outputs unconnected except for bypass capacitors.)
SOFT-START/REFERENCE (CSS)
Reference Voltage
Soft-Start Pullup Current
ERROR AMPLIFIER (CSS, FB, COMP)
FB Input Range
FB Input Current
COMP Output Range
COMP Output Sink Current
COMP Output Source Current
Open-Loop Gain
Unity-Gain Bandwidth
FB Offset Voltage
COMP Output Slew Rate
PVIN UNDERVOLTAGE LOCKOUT (STT)
PVIN Undervoltage Lockout
STT Threshold
STT Input Impedance
INTEGRATING FAULT PROTECTION (FLTINT)
FLTINT Source Current
FLTINT Shutdown Threshold
FLTINT Restart Hysteresis
OSCILLATOR (RCOSC, SYNCIN, SYNCOUT)
PWM Period
Maximum PWM Duty Cycle
Maximum RCOSC Frequency
Maximum SYNCIN Frequency
SYNCIN High-Level Voltage
SYNCIN Low-Level Voltage
SYNCIN Pulldown Resistor
SYNCIN Rising to SYNCOUT
Falling Delay
SYNCIN Falling to SYNCOUT
Rising Delay
REG5
= 4.7µF, T
PARAMETER
A
= T
_______________________________________________________________________________________
MIN
to T
UVLO
MAX
, unless otherwise noted. Typical values are at T
= V
f
V
V
RCOSCMAX
VH
SYMBOL
VL
Parallelable, Clamped Two-Switch
f
FLTINTSD
FLTINTHY
I
SYNCIN
STT
FLTINT
D
V
R
V
SYNCIN
I
V
SYNCIN
V
BW
CSS
I
G
SR
CSS
MAX
FB
STT
STT
t
OS
FB
S
A
= 3V, V
Inferred from FB offset voltage test
V
Inferred from FB offset voltage test
V
V
2.1V < V
C
V
I
C
V
V
V
V
R
R
50% duty cycle
Pulse rising
Pulse falling
COMP
FB
FB
FB
FB
PVIN
STT
FLTINT
FLTINT
COMP
COMP
RCOSC
RCOSC
CON
= V
= 3V
= 0V
= 0 to 3V; V
rising
rising
= 3V, R
= -5mA to +5mA
REF
= 50pF, I
= 50pF
Power-Supply Controller IC
= 0V
= rising
COMP
= 24kΩ, C
= 24kΩ, C
< 6V
RCOSC
CONDITIONS
COMP
COMP
RCOSC
RCOSC
= 2.1V to 6V;
= 24kΩ, C
= ±5mA
= 100pF
= 100pF
A
CSS
= +25°C. All driver, voltage-regulator, and refer-
= 10nF, C
1.215
1.18
MIN
2.1
2.1
22
-3
RCOSC
0
1.235
= 100pF, C
TYP
23.5
1.24
100
500
100
2.9
0.9
3.9
70
20
30
80
90
48
30
70
3
1
1
1.255
MAX
±250
1.30
6.0
0.8
+3
25
3
REG9
= 4.7µF,
UNITS
MHz
MHz
V/µs
kHz
mA
mA
mV
dB
kΩ
kΩ
µA
nA
µA
µs
ns
ns
%
V
V
V
V
V
V
V
V
V
3