MAX16802B Maxim Integrated Products, MAX16802B Datasheet - Page 3

• Manufacturer Part Number: MAX16802B
• Description: Offline and DC-DC PWM Controllers
• Manufacturer: Maxim Integrated Products

ELECTRICAL CHARACTERISTICS (continued)
(V
V
at T
Note 1: All devices are 100% tested at T
Note 2: V
Note 3: The MAX16801 is intended for use in universal input offline drivers. The internal clamp circuit is used to prevent the boot-
CURRENT-SENSE COMPARATOR
Current-Sense Trip Threshold
CS Input Bias Current
Propagation Delay From
Comparator Input to NDRV
Switching Frequency
Maximum Duty Cycle
IN CLAMP VOLTAGE
IN Clamp Voltage
ERROR AMPLIFIER
Voltage Gain
Unity-Gain Bandwidth
Phase Margin
DIM/FB Input Offset Voltage
COMP Clamp Voltage
Source Current
Sink Current
Reference Voltage
Input Bias Current
COMP Short-Circuit Current
THERMAL SHUTDOWN
Thermal-Shutdown Temperature
Thermal Hysteresis
DIGITAL SOFT-START
Soft-Start Duration
Reference Voltage Steps During
Soft-Start
Reference Voltage Step
UVLO
IN
A
= +12V (MAX16801: V
= +25°C.) (Note 1)
= +1.4V, V
strap capacitor (C1 in Figure 5) from charging to a voltage beyond the absolute maximum rating of the device when
EN/UVLO is low. The maximum current to IN (hence to clamp) when UVLO is low (device in shutdown), must be externally
limited to 2mA (max). Clamp currents higher than 2mA may result in clamp voltage higher than +30V, thus exceeding the
absolute maximum rating for IN. For the MAX16802, do not exceed the +24V maximum operating voltage of the device.
REF
PARAMETER
is measured with DIM/FB connected to the COMP pin (see the Functional Diagram).
DIM/FB
_______________________________________________________________________________________
= +1.0V, COMP = unconnected, V
IN
must first be brought up to +23.6V for startup), 10nF bypass capacitors at IN and V
Offline and DC-DC PWM Controllers for
SYMBOL
D
t
V
V
V
PWM
f
I
MAX
SW
REF
A
CS
INC
CS
= +85°C. All limits over temperature are guaranteed by characterization.
V
50mV overdrive
MAX1680_A
MAX1680_B
2mA sink current, MAX16801 only (Note 3)
R
R
R
High
Low
(Note 2)
CS
LOAD
LOAD
LOAD
= 0V
= 100kΩ
= 100kΩ, C
= 100kΩ, C
CS
High-Brightness LED Drivers
= 0V, T
CONDITIONS
LOAD
LOAD
A
= -40°C to +85°C, unless otherwise noted. Typical values are
= 200pF
= 200pF
1.218
24.1
MIN
262
230
2.2
0.4
0.5
0.5
-2
15,872
1.230
TYP
26.1
291
262
130
60
50
75
80
65
25
31
40
2
8
www.DataSheet4U.com
CC
1.242
MAX
50.5
29.0
320
290
3.5
1.1
+2
76
50
, C
3
NDRV
D eg r ees
UNITS
cycles
Clock
Steps
MHz
kHz
mV
mV
mA
mA
mA
mV
= 0µF,
µA
dB
nA
ns
°C
°C
%
V
V
V
3