MAX1887EEE Maxim Integrated Products, MAX1887EEE Datasheet - Page 7

• Manufacturer Part Number: MAX1887EEE
• Description: Current Mode PWM Controllers
• Manufacturer: Maxim Integrated Products

Specifications of MAX1887EEE

• Number Of Outputs: 1
• Mounting Style: SMD/SMT
• Package / Case: QSOP-16
• Switching Frequency: 550 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Boost

(Circuit of Figure 1, V+ = 12V, V
-100
100
-20
-40
-60
-80
80
60
40
20
0
-150
CURRENT-SENSE VOLTAGE DIFFERENTIAL
COMPENSATION OUTPUT CURRENT vs.
OUT = CM+ = CM- = CS-
I
COMP
-100
= G
M
(V
-50
CS+
V
CS+
_______________________________________________________________________________________
- V
CS-
- V
0
CS-
)
(V)
50
CC
100
= V
DD
150
= 5V, V
Quick-PWM Slave Controllers for
Multiphase, Step-Down Supplies
500
450
400
350
300
250
200
150
100
Typical Operating Characteristics (continued)
160
140
120
100
OUT
50
80
60
40
20
0
0
0
0
POSITIVE CURRENT-LIMIT THRESHOLD
= 1.3V (ZMODE = GND) and 1V (ZMODE = V
MINIMUM TRIGGER PULSE WIDTH
vs. OVERDRIVE VOLTAGE
RISING (OUT-OF-PHASE)
0.5
OVERDRIVE VOLTAGE (V)
vs. ILIM VOLTAGE
0.5
FALLING (IN-PHASE)
MASTER OR SLAVE
V
ILIM
1.0
ON-TIME TRIGGERED
(V)
ABOVE THE LINE
1.0
1.5
2.0
1.5
500
450
400
350
300
250
200
150
100
50
0
0
CC
TRIGGER PROPAGATION DELAY
), SHDN = V
vs. OVERDRIVE VOLTAGE
RISING (OUT-OF-PHASE)
0.5
OVERDRIVE VOLTAGE (V)
FALLING (IN-PHASE)
1.0
CC
(MAX1897))
1.5
2.0
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