Electrical characteristics (continued) – Rainbow Electronics MAX5095A User Manual
Page 3
MAX5094A/B/C/D/MAX5095A/B/C
High-Performance, Single-Ended, Current-Mode
PWM Controllers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +15V, R
T
= 10k
Ω, C
T
= 3.3nF, REF = open, C
REF
= 0.1µF, COMP = open, V
FB
= 2V, CS = GND, T
A
= T
J
= -40°C to +85°C,
unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX5094A/B (Note 3)
0.95
1
1.05
MAX5094C/MAX5094D (Note 3)
0.275
0.3
0.325
Maximum Current-Sense Signal
V
CS_MAX
V
COMP
= 5V, MAX5095
0.275
0.3
0.325
V
Power-Supply Rejection Ratio
PSRR
12V
≤ V
CC
≤ 25V
70
dB
Input Bias Current
I
CS
V
COMP
= 0V
-1
-2.5
µA
Delay From CS to OUT
t
CS_DELAY
50mV overdrive
60
ns
MOSFET DRIVER
OUT Low-Side On-Resistance
V
RDS_ONL
I
SINK
= 200mA
4.5
10
Ω
OUT High-Side On-Resistance
V
RDS_ONH
I
SOURCE
= 100mA
3.5
7
Ω
I
SOURCE
(Peak)
I
SOURCE
C
OUT
= 10nF
2
A
I
SINK
(Peak)
I
SINK
C
OUT
= 10nF
1
A
Rise Time
t
R
C
OUT
= 1nF
15
ns
Fall Time
t
F
C
OUT
= 1nF
22
ns
UNDERVOLTAGE LOCKOUT/STARTUP
Startup Voltage Threshold
V
CC_START
7.98
8.40
8.82
V
Minimum Operating Voltage After
Turn-On
V
CC_MIN
7.1
7.6
8.0
V
Undervoltage-Lockout Hysteresis
UVLO
HYST
0.8
V
PWM
MAX5094A/MAX5094C/MAX5095A
94.5
96
97.5
Maximum Duty Cycle
D
MAX
MAX5094B/MAX5094D/MAX5095B/
MAX5095C
48
49.8
50
%
Minimum Duty Cycle
D
MIN
0
%
SUPPLY CURRENT
Startup Supply Current
I
START
V
CC
= 7.5V
32
65
µA
Operating Supply Current
I
CC
V
FB
= V
CS
= 0
3
5
mA
Zener Bias Voltage at V
CC
V
Z
I
CC
= 25mA
24
26.5
V
SYNCHRONIZATION (MAX5095A/MAX5095B only) (Note 5)
SYNC Frequency Range
f
SYNC
20
1000
kHz
SYNC Clock Input High
Threshold
V
SYNCINH
3.5
V
SYNC Clock Input Low Threshold
V
SYNCINL
0.8
V
SYNC Clock Input Minimum
Pulse Width
t
PW_SYNCIN
200
ns
SYNC Clock Output High Level
V
SYNCOH
1mA external pulldown
4.0
4.7
V
SYNC Clock Output Low Level
V
SYNCOL
R
SYNC
= 5k
Ω
0
0.1
V
SYNC Leakage Current
I
SYNC
V
SYNC
= 0
0.01
0.1
µA