MAX1640EEE Maxim Integrated Products, MAX1640EEE Datasheet - Page 2

• Manufacturer Part Number: MAX1640EEE
• Description: Current Mode PWM Controllers Adj-Out Switch Mode Current Source
• Manufacturer: Maxim Integrated Products

Specifications of MAX1640EEE

• Number Of Outputs: 1
• Duty Cycle (max): 100 %
• Output Voltage: 2 V to 24 V
• Mounting Style: SMD/SMT
• Package / Case: QSOP-16
• Switching Frequency: 500 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Buck
• Case: ssop
• Dc: 99+

ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +28V
LDOH to IN ...............................................................+0.3V to -6V
LDOL to GND ...........................................................-0.3V to +6V
PDRV to GND .............................. (V
NDRV to GND .........................................-0.3V to (V
TOFF, REF, SET, TERM, CC to GND ......-0.3V to (V
D0, D1 to GND .........................................................-0.3V to +6V
CS+, CS- to GND ...................................................-0.3V to +28V
PGND to GND.....................................................................±0.3V
Adjustable-Output, Switch-Mode
Current Source with Synchronous Rectifier
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
2
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
Input Voltage Range
Linear-Regulator Output
Voltage, V
Linear-Regulator Output
Voltage, Ground Referenced
Full-Scale Current-Sense
Threshold
Quarter-Scale Current-Sense
Threshold
Current-Sense Line Regulation
Output Current Compliance
Quiescent V
Output Current in Off Mode
V
Reference Voltage
Reference Load Regulation
V
FET Drive Output Resistance
Off-Time Range
Off-Time Accuracy
Pulse-Trickle Mode Duty-Cycle
Period
Pulse-Trickle Mode Duty Cycle
(Note 2)
IN
LDOL
SET
_______________________________________________________________________________________
= +12V, V
Input Current
Undervoltage Lockout
layer board. For detailed information on package thermal comsiderations, refer to www.maxim-ic.com/thermal-tutorial.
PARAMETER
IN
IN
Referenced
OUT
Supply Current
= 6V, Circuit of Figure 1, T
SYMBOL
LDOH
V
V
V
LDOH
LDOL
V
REF
IN
- 0.3V) to (V
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
V
V
MAX1640
MAX1641
MAX1640
MAX1641
V
V
D0 or D1 = high
D0 = D1 = low (off mode)
D0 = D1 = low
I
PFET and NFET drive
R
D0 = low, D1 = high, R
D0 = low, D1 = high, R
REF
IN
IN
IN
OUT
TOFF
LDOL
LDOL
= 5.5V to 26V, I
= 5.5V to 26V, I
= V
= 0 to 50µA
IN
= 2V to 24V
= 62kΩ
OUT
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.5V to 26V
CONDITIONS
LOAD
LOAD
Continuous Power Dissipation (T
Package Junction-to-Ambient Thermal Resistance
Package Junction-to-Case Thermal Resistance θ
Operating Temperature Range
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +300°C
TOFF
TOFF
MAX1640
MAX1641
QSOP (derate 9.6mW/°C above +70°C) ..................... 772mW
MAX164_EEE ...................................................-40°C to +85°C
(Note 1) ..................................................................103.7°C/W
(Note1) ....................................................................... 37°C/W
= 0 to 20mA
= 0 to 20mA
= 100kΩ
= 100kΩ
V
4.05
1.96
MIN
142
147
5.5
5.5
4.5
1.7
36
34
27
IN
1
-
A
= +70°C)
V
TYP
37.5
0.03
4.20
2.00
12.5
150
150
500
5.0
5.0
0.1
0.1
2.2
42
33
IN
2
4
-
A
= +25°C.)
MAX
V
4.35
2.04
153
4.5
5.5
158
0.4
2.7
26
48
41
10
12
10
40
IN
JC
4
1
1
(θ
)
-
JA
)
UNITS
%/V
%/V
mA
mV
mV
mV
µA
µA
µA
ms
µs
µs
Ω
%
V
V
V
V
V