MAX1846EUB+ Maxim Integrated Products, MAX1846EUB+ Datasheet - Page 5

• Manufacturer Part Number: MAX1846EUB+
• Description: IC CNTRLR PWM HI EFF 10-UMAX
• Manufacturer: Maxim Integrated Products
• Type: Inverting, Flybackr

Specifications of MAX1846EUB+

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -0.5 ~ -200 V
• Current - Output: 5A
• Frequency - Switching: 100kHz ~ 500kHz
• Voltage - Input: 3 ~ 16.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Power - Output: 444mW
• Duty Cycle (max): 97 %
• Output Voltage: 1.25 V
• Mounting Style: SMD/SMT
• Switching Frequency: 500 KHz
• Operating Supply Voltage: 3 V to 16.5 V
• Supply Current: 0.75 mA
• Maximum Operating Temperature: + 85 C
• Fall Time: 200 ns
• Minimum Operating Temperature: - 40 C
• Output Power: 444 mW
• Rise Time: 200 ns
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
unless otherwise noted.) (Note 3)
Note 3: Parameters to -40°C are guaranteed by design and characterization.
(Circuit references are from Table 1 in the Main Application Circuits section, C
noted.)
POL, SYNC Input Current
SHDN Input Current
EXT OUTPUT
EXT On-Resistance
SHDN
-11.90
-11.92
-11.94
-11.96
-11.98
-12.00
-12.02
-12.04
-12.06
-12.08
-12.10
100
90
80
70
60
50
40
30
20
10
0
1
0
= V
APPLICATION CIRCUIT A
OUTPUT VOLTAGE LOAD REGULATION
APPLICATION CIRCUIT B
PARAMETER
EFFICIENCY vs. LOAD CURRENT
IN
100
10
= +12V, SYNC = GND, PGND = GND, R
V
IN
LOAD CURRENT (mA)
LOAD CURRENT (mA)
200
= 5V
_______________________________________________________________________________________
100
300
V
IN
V
= 16.5V
400
IN
V
OUT
1000
= 5V
= -5V
500
POL, SYNC = GND or VL
V
V
EXT high or low, I
EXT high or low, I
10,000
SHDN
SHDN
600
= +5V or GND
= +16.5V
100
High-Efficiency, Current-Mode,
90
80
70
60
50
40
30
20
10
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
1
0
APPLICATION CIRCUIT B
EXT
EXT
EFFICIENCY vs. LOAD CURRENT
2
FREQ
= 100mA, V
= 100mA, V
CONDITIONS
10
vs. SUPPLY VOLTAGE
4
SUPPLY CURRENT
LOAD CURRENT (mA)
Inverting PWM Controller
= 147kΩ ±1%, C
6
V
100
IN
8
(V)
IN
IN
Typical Operating Characteristics
V
IN
10
= +5V
= +3V
= 3V
V
OUT
1000
VL
V
12
V
FB
= -12V
V
IN
= 0.47µF, C
IN
= -0.1V
= 3.3V
= 5V
14
VL
10,000
= 0.47µF, C
16
REF
1.262
1.258
1.254
1.250
1.246
1.242
1.238
100
90
80
70
60
50
40
30
20
10
= 0.1µF, T
0
REF
-40
1
MIN
APPLICATION CIRCUIT C
-12
= 0.1µF, T
EFFICIENCY vs. LOAD CURRENT
-20
A
REFERENCE VOLTAGE
V
IN
vs. TEMPERATURE
= +25°C, unless otherwise
0
LOAD CURRENT (mA)
TEMPERATURE (°C)
= 12V
10
20
A
V
= -40°C to +85°C,
IN
= 16.5V
40
MAX
7.5
40
12
0
6
100
60
V
OUT
80
= -48V
UNITS
µA
µA
Ω
1000
100
5