MAX1887EEE Maxim Integrated Products, MAX1887EEE Datasheet - Page 3

• 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

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V
(MAX1897), T
CURRENT SENSING
On-Time Adjustment Range
COMP Output Current
Current-Balance Offset
Current-Balance
Transconductance
Current-Sense, Common-Mode
Range
Current-Sense Input Current
Positive Current-Limit Threshold
Negative Current-Limit
Threshold
ILIM Standby Threshold Voltage
ILIM Input Current
LIMIT Propagation Delay
LIMIT Output Low Voltage
LIMIT Leakage Current
FAULT PROTECTION
V
Threshold (Note 3)
Thermal Shutdown Threshold
GATE DRIVERS
DH Gate-Driver On-Resistance
(Note 4)
DL Gate-Driver On-Resistance
(Note 4)
DH Gate-Driver Source/Sink
Current
DL Gate-Driver Sink Current
DL Gate-Driver Source Current
Dead Time
CC
/V
DD
PARAMETER
Undervoltage Lockout
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
_______________________________________________________________________________________
CC
V
SYMBOL
R
R
OL(LIMIT)
V
I
= V
t
I
COMP
ON ( D H )
ON(DL)
LIMIT
LIMIT
C_LIM
I
I
I
DH
DL
DL
DD
Quick-PWM Slave Controllers for
Multiphase, Step-Down Supplies
= 5V, V
0.42 < V
Sink and source
(V
(V
0, -100mV ≤ (V
V
(V
CM+, CM-, CS+, CS-
CM+, CM-, CS+, CS-
V
V
V
Falling edge, 3mV over trip threshold
I
LIMIT forced to 5.5V
Rising edge, hysteresis = 20mV, switching
disabled below this level
Rising, hysteresis = 15°C (typ)
V
High state (pullup)
Low state (pulldown)
DH forced to 2.5V, V
DL forced to 2.5V
DL forced to 2.5V
DL rising
DH rising
SINK
CM-
CM+
CS+
CS+
BST
CM+
CS+
CM+
OUT
) ≤ +100mV
= 1mA
- V
- V
- V
- V
- V
- V
- V
LX
COMP
CS-
CS-
CM-
CS-
CM-
CM-
= V
forced to 5V
), I
) -
) - (V
and
COMP
< 2.8V, V
CM+
COMP
CONDITIONS
CS+
-
= 1.2V, V
BST
=
- V
OUT
- V
CS-
MAX1887
MAX1897
V
V
V
V
MAX1887
MAX1897
MAX1887
MAX1897
MAX1887
MAX1897
LX
≥ 0.7V
) = ±25mV
ILIM
ILIM
ILIM
ILIM
A
forced to 5V
CM+
= +25°C.)
= 0.5V
= 1V
= 0.5V
= 1V
= V
CM-
= V
CS+
-1.25
-1.25
MIN
-160
47.5
97.5
-100
3.45
-0.2
-40
-80
0.2
30
-1
= V
CS-
< 0.01
100.0
TYP
-150
50.0
160
-75
1.2
1.5
1.0
1.0
1.0
1.0
0.4
0.4
1.3
4.0
1.3
35
26
= 1.2V, SHDN = V
+1.25
+1.25
102.5
MAX
+100
-140
+2.0
52.5
3.85
+40
1.00
-70
0.3
3.5
4.5
3.5
4.5
1.0
2.0
0.1
+1
UNITS
mV
mV
µA
mV
mS
µA
µA
µs
°C
ns
%
nA
Ω
Ω
V
V
A
A
A
V
V
CC
3