MAX17491 Maxim Integrated Products, MAX17491 Datasheet - Page 2

• Manufacturer Part Number: MAX17491
• Description: Single-Phase Synchronous MOSFET Driver
• Manufacturer: Maxim Integrated Products

ABSOLUTE MAXIMUM RATINGS
V
SKIP to GND..................………………………………-0.3V to +6V
PWM to GND ................……………………………….-0.3V to +6V
DL to GND ..................................................-0.3V to (V
BST to GND ............................................................-0.3V to +36V
DH to LX ....................................................-0.3V to (V
BST to V
BST to LX ................…………………………………...-0.3V to +6V
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
Single-Phase Synchronous MOSFET Driver
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.
2
Input Voltage Range
V
Lockout Threshold
Quiescent Supply
Current (V
DRIVERS
PWM Pulse Width
DL Propagation Delay
DH Propagation Delay
DL-to-DH Dead Time
DH-to-DL Dead Time
DL Transition Time
DH Transition Time
DH Driver
On-Resistance
DL Driver
On-Resistance
DH Driver Source Current
DH Driver Sink Current
DL Driver Source Current I
DD
DD
_______________________________________________________________________________________
to GND...............…………………….………….. -0.3V to +6V
Undervoltage-
PARAMETER
DD
DD
.............................................................-0.3V to +30V
)
DD
= V
SKIP
I
V
DH_SOURCE
DL_SOURCE
SYMBOL
UVLO(VDD)
t
I
t
t
R
t
R
OFF(MIN)
DH_SINK
PWM-DH
ON(MIN)
PWM-DL
t
t
t
t
t
ON(DH)
DL-DH
DH-DL
t
ON(DL)
R_DH
V
R_DL
F_DH
F_DL
I
= 5V, T
DD
DD
A
= -40°C to +105°C, unless otherwise noted. Typical values are at T
Rising edge, PWM disabled below this level
Falling edge, PWM disabled below this level
PWM = open; after the shutdown hold time has expired
crossing); this state should be equivalent to low-
power standby if LX = GND
Minimum on-time
Minimum off-time; required to allow the zero-crossing
comparator time to settle to the proper state
PWM high-to-DL low
PWM low-to-DH low
DL falling to DH rising
DH falling to DL rising
Falling, 3.0nF load
Rising, 3.0nF load
Falling, 3.0nF load
Rising, 3.0nF load
BST - LX forced to 5V
DL, high state (pullup)
DL, low state (pulldown)
DH forced to 2.5V, BST - LX forced to 5V
DH forced to 2.5V, BST - LX forced to 5V
DL forced to 2.5V
= GND, PWM = GND, LX = GND (after zero
= GND or V
BST
DD
+ 0.3V)
+ 0.3V)
DD
, PWM = V
CONDITIONS
Continuous Power Dissipation
Operating Temperature Range .........................-40°C to +105°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
T
T
T
T
DH, high state (pullup)
DH, low state (pulldown)
8-Pin 3mm x 3mm TQFN
(derate 23.8mW/°C above +70°C) .............................1904mW
DD
A
A
A
A
, V
= 0°C to +85°C
= -40°C to +105°C
= 0°C to +85°C
= -40°C to +105°C
BST
= 5V
4.20
3.30
MIN
10
10
10
10
A
TYP
3.40
0.08
0.15
0.35
300
3.7
0.9
0.7
0.7
0.3
2.2
2.7
2.7
= +25°C.) (Note 1)
50
15
17
10
12
10
8
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MAX
5.50
4.05
3.75
0.20
0.30
0.70
2.5
2.1
1.6
0.9
UNITS
mA
ns
ns
ns
ns
ns
ns
ns
A
A
A
V
V