Datasheet

4.5V to 40V Input Automotive
Flyback/Boost/SEPIC Power-Supply Controllers
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 14V, C
IN
= 0.1μF, C
VCC
= 0.1μF // 1μF, C
REG5
= 1μF, V
ON/OFF
= 5V, C
SS
= 0.01μF, C
SLOPE
= 100pF, RT = 13.7kΩ, CT =
560pF, V
SYNC
= V
OVI
= V
FB
= V
CS
= 0V, COMP = unconnected, OUT = unconnected. T
A
= T
J
= -40°C to +125°C, unless otherwise
noted. Typical values are at T
A
= +25°C. All voltages are referenced to PGND, unless otherwise noted.) (Note 1) (Figure 5)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
OUTPUT DRIVER
R
OUT-N
V
CC
= 8V (applied externally),
I
OUT
= 100mA (sinking)
1.7 3.5
Driver Output Impedance
R
OUT-P
V
CC
= 8V (applied externally),
I
OUT
= 100mA (sourcing)
35
Ω
C
OUT
= 10nF, sinking 1000
Driver Peak Output Current I
OUT-PEAK
C
OUT
= 10nF, sourcing 750
mA
OVERVOLTAGE COMPARATOR
Overvoltage Comparator Input
Threshold
V
OV-TH
V
OVI
rising 1.20 1.228 1.26 V
Overvoltage Comparator
Hysteresis
V
OV-HYST
125 mV
Overvoltage Comparator Delay TD
OVI
From OVI rising above 1.228V to OUT
falling, with 50mV overdrive
1.6 μs
OVI Input Current I
OVI
V
OVI
= 0 to 5V -0.5 +0.5 μA
THERMAL SHUTDOWN
Shutdown Temperature T
SHDN
Temperature rising 160
o
C
Thermal Hysteresis T
HYST
15
o
C
Note 1: 100% production tested at +125°C. Limits over the temperature range are guaranteed by design.
Note 2: Guaranteed by design; not production tested.
Note 3: For the MAX15005A/B, D
MAX
depends upon the value of RT. See Figure 3 and the Oscillator Frequency/External
Synchronization
section.
Note 4: The external SYNC pulse triggers the discharge of the oscillator ramp. See Figure 2. During external SYNC, D
MAX
= 50% for
the MAX15004A/B; for the MAX15005A/B, there is a shift in D
MAX
with f
SYNC
/f
OSC
ratio (see the Oscillator Frequency/
External Synchronization
section).
Note 5: The parameter is measured at the trip point of latch, with 0 ≤ V
CS
≤ 0.3V, and FB = COMP.
Note 6: Slope compensation = (2.5 x 10
-9
)/C
SLOPE
mV/μs. See the Applications Information section.
MAX15004A/B/MAX15005A/B
5
Maxim Integrated