MAX1887EEE Maxim Integrated Products, MAX1887EEE Datasheet - Page 4

• 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

Quick-PWM Slave Controllers for
Multiphase, Step-Down Supplies
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V
(MAX1897), T
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, V
(MAX1897), T
4
PWM CONTROLLER
On Time (Note 3)
SUPPLY CURRENTS
Quiescent Supply Current (V+)
Quiescent Supply Current (V
(Note 3)
Quiescent Supply Current (V
(MAX1897, Note 3)
Standby Supply Current (V+)
Standby Supply Current (V
(Note 3)
Standby Supply Current (V
(MAX1897, Note 3)
Shutdown Supply Current (V+)
(MAX1897)
Shutdown Supply Current (V
(MAX1897, Note 3)
LOGIC
Logic Input High Voltage
(MAX1897)
Logic Input Low Voltage
(MAX1897)
TRIG Logic Levels
TON Logic Levels (MAX1897)
Logic Input Current
_______________________________________________________________________________________
PARAMETER
PARAMETER
A
A
= -40°C to +85°C, unless otherwise noted.) (Note 5)
= 0°C to +85°C, unless otherwise noted. Typical values are at T
DD
CC
DD
DD
CC
)
)
)
)
)
CC
CC
SYMBOL
SYMBOL
= V
= V
V
V
I
t
I
V
V
TRIG
DD
TON
ON
CC
I+
IH
IL
DD
DD
= 5V, V
= 5V, V
M AX 1887 ( 300kH z) , V + = 12V , V
MAX1897,
V+ = 12V,
V
Measured at V+; V
Measured at V
V
Measured at V
Measured at V+; ILIM = GND
Measured at V
ILIM = GND
Measured at V
Measured at V+; V
SHDN = GND
Measured at V
SHDN, POL; V
SHDN, POL; V
350mV hysteresis
Logic high (V
Open (300kHz operation)
Logic low (GND; 550kHz operation)
TRIG
SHDN (MAX1897)
POL (MAX1897)
TON = GND or V
COMP
ILIM
OUT
OUT
> 0.35V
= 1.2V
= V
= V
CC
COMP
COMP
CC
CC
DD
CC
DD
CC
DD
CONDITIONS
CONDITIONS
; 200kHz operation)
DD
;
; V
;
; ILIM = GND
; SHDN = GND
= 4.5V to 5.5V
= 4.5V to 5.5V
ILIM
CC
ILIM
(MAX1897)
= 1.2V, V
= 1.2V, V
= V
TON = GND (550kHz)
TON = open (300kHz)
TON = V
> 0.35V
> 0.35V
MAX1887
MAX1897
MAX1887
MAX1897
DD
High
Low
= 0 or 5V,
A
CM+
CM+
CC
C OM P
= +25°C.)
(200kHz)
= V
= V
= 1.2V
CM-
CM-
= V
= V
CS+
CS+
V
MIN
MIN
320
171
320
464
2.4
3.0
CC
1.5
-1
-1
-2
-2
= V
= V
- 0.4
CS-
CS-
TYP
TYP
= 1.2V, SHDN = V
= 1.2V, SHDN = V
MAX
MAX
390
209
390
566
800
800
0.8
1.2
3.1
0.5
+1
+1
+1
+3
40
40
40
5
5
5
5
5
UNITS
UNITS
µA
ns
µA
µA
µA
µA
µA
µA
µA
µA
V
V
V
V
CC
CC