MAX1847EEE Maxim Integrated Products, MAX1847EEE Datasheet - Page 3

• Manufacturer Part Number: MAX1847EEE
• Description: Current Mode PWM Controllers
• Manufacturer: Maxim Integrated Products

Specifications of MAX1847EEE

• Case: ssop
• Dc: 05+
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
otherwise noted.)
Note 1: Production test correlates to operating conditions.
Note 2: Guaranteed by design and characterization.
OSCILLATOR
Oscillator Frequency
Maximum Duty Cycle
SYNC Input Signal Duty-Cycle
Range
Minimum SYNC Input Logic-Low
Pulse Width
SYNC Input Rise/Fall Time
SYNC Input Frequency Range
DIGITAL INPUTS
POL, SYNC, SHDN Input High
Voltage
POL, SYNC, SHDN Input Low
Voltage
POL, SYNC Input Current
SHDN Input Current
SOFT-START
Soft-Start Clock Cycles
Soft-Start Levels
EXT OUTPUT
EXT Sink/Source Current
EXT On-Resistance
SHDN
= V
IN
= +12V, SYNC = GND, PGND = GND, R
_______________________________________________________________________________________
R
R
R
R
R
R
(Note 2)
POL, SYNC = GND or VL
V
V
V
EXT high or low, tested with 100mA load, V
EXT high or low, tested with 100mA load, V
SHDN
SHDN
IN
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
= +5V, V
= 500kΩ ±1%
= 147kΩ ±1%
= 76.8kΩ ±1%
= 500kΩ ±1%
= 147kΩ ±1%
= 76.8kΩ ±1%
= +5V or GND
= +16.5V
High-Efficiency, Current-Mode,
EXT
forced to +2.5V
FREQ
= 147kΩ ±1%, C
Inverting PWM Controller
VL
IN
IN
= 0.47µF, C
= +5V
= +3V
REF
= 0.1µF, T
255
100
2.0
-12
90
93
85
7
A
1024
100
300
500
1.5
96
88
80
50
20
64
-4
= 0°C to +85°C, unless
1
2
5
0.45
110
345
200
200
550
97
90
93
40
10
0
6
5
Cycles
kHz
kHz
µA
µA
ns
ns
%
%
Ω
V
V
A
3