MAX256ASA-T Maxim Integrated Products, MAX256ASA-T Datasheet - Page 3

• Manufacturer Part Number: MAX256ASA-T
• Description: MOSFET & Power Driver ICs
• Manufacturer: Maxim Integrated Products

Specifications of MAX256ASA-T

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

TIMING CHARACTERISTICS
(V
Note 2: Minimum and maximum limits tested with ST1, ST2 unconnected.
Note 3: Total driver resistance includes the on-resistance of the top and the bottom internal FETs. If R
Switching Frequency
CK_RS Input Frequency
ST1 and ST2 Duty Cycle
Crossover Dead Time
Watchdog Timeout
CC
= +3.0V to +5.5V, T
PIN
2, 3
6, 7
EP
1
4
5
8
3W Primary-Side Transformer H-Bridge Driver
and R
PARAMETER
OL
is the low-side resistance, R
CK_RS
NAME
MODE
GND
V
ST2
ST1
_______________________________________________________________________________________
EP
CC
A
= T
MIN
Clock Input/Oscillator Frequency Adjust. When MODE is HIGH, set the internal oscillator frequency by
connecting a 10kΩ or greater resistor from CK_RS to ground. When MODE is LOW, apply an external
clock signal to CK_RS. The MAX256 outputs switch at one half the external clock frequency.
V
Bypass V
Mode Control Input. Drive MODE high to enable internal oscillator. Drive MODE low and supply a valid
clock signal on CK_RS for external clock mode.
Transformer Drive Output 2
Ground
Transformer Drive Output 1
Exposed Paddle. Connect the exposed paddle to ground.
CC
to T
Supply Voltage, +3.0V ≤ V
SYMBOL
MAX
t
t
WDOG
DEAD
CC
f
Dtc
SW
f
IN
. Typical values are at V
to ground with a 4.7µF capacitor and a 470nF ceramic capacitor.
OHL
MODE = V
MODE = V
MODE = GND
MODE = V
R
MODE = GND
= R
L
= 100Ω
OH
+ R
CC
CC,
CC
OL
CC
, R
.
CK_RS unconnected
CONDITIONS
≤ +5.5V.
CC
S
= 10.5kΩ
= +5.0V and T
for Isolated Supplies
FUNCTION
A
= +25°C, unless otherwise noted.)
MIN
0.75
0.2
65
49
20
OH
Pin Description
is the high-side resistance,
TYP
100
50
20
1
MAX
1.35
160
51
55
2
UNITS
MHz
MHz
kHz
ns
%
µs
3