Rainbow Electronics MAX5095A - Manual (Page 4)

MAX5094A/B/C/D/MAX5095A/B/C
High-Performance, Single-Ended, Current-Mode
PWM Controllers
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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
ADV_CLK (MAX5095C only)
ADV_CLK High Voltage V ADV_CLKH I ADV_CLK = 10mA source 2.4 3 V
ADV_CLK Low Voltage V ADV_CLKL I ADV_CLK = 10mA sink 0.4 V
ADV_CLK Output Pulse Width t PULSE 85 ns
ADV_CLK Rising Edge to OUT
Rising Edge
t ADV_CLK 110 ns
ADV_CLK Source and Sink
Current
I ADV_CLK 10 mA
ELECTRICAL CHARACTERISTICS
(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 +125°C,
unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
REFERENCE
Output Voltage V REF T A = +25°C, I REF = 1mA 4.950 5.000 5.050 V
Line Regulation ∆V
LINE 12V ≤ V
CC
≤ 25V, I
REF = 1mA 0.4 4 mV
Load Regulation ∆V
LOAD
1mA ≤ I
REF
≤ 20mA 6 25 mV
Total Output Variation V REFT 1mA ≤ I
REF
≤ 20mA, 12V ≤ V
CC
≤ 25V 4.9 5.1 V
Reference Output-Noise Voltage V NOISE 10Hz ≤ f ≤ 10kHz, T
A = +25°C 50 µV
Reference Output Short Circuit I S_SC V REF = 0 -30 -100 -180 mA
OSCILLATOR
Initial Accuracy T A = +25°C 51 54 57 kHz
Voltage Stability 12V ≤ V
CC
≤ 25V 0.2 0.5 %
Temp Stability -40 °C ≤ T
A
≤ +125°C 1 %
R T /C T Voltage Ramp ( P-P ) V RAMP 1.7 V
R T /C T Voltage Ramp Valley V RAMP_VALLEY 1.1 V
V RT/CT = 2V, T A = +25°C 7.9 8.3 8.7
Discharge Current I DIS
V RT/CT = 2V, -40°C ≤ T
A
≤ +125°C 7.5 8.3 9.0
mA
Frequency Range f OSC 20 1000 kHz
ERROR AMPLIFIER (MAX5094)
FB Input Voltage V FB FB shorted to COMP 2.465 2.5 2.535 V
FB Input Bias Current I B(FB) -0.01 -0.1 µA
Open-Loop Voltage Gain A VOL 2V ≤ V
COMP
≤ 4V 100 dB
Unity-Gain Bandwidth f GBW 1 MHz
Power-Supply Rejection Ratio PSRR 12V ≤ V
CC
≤ 25V (Note 2) 60 80 dB
COMP Sink Current I SINK V FB = 2.7V, V COMP = 1.1V 2 6 mA
COMP Source Current I SOURCE V FB = 2.3V, V COMP = 5V -0.5 -1.2 -1.8 mA
COMP Output High Voltage V COMPH V FB = 2.3V, R COMP =15k Ω to GND 5 5.8 V
COMP Output Low Voltage V COMPL V FB = 2.7V, R COMP = 15k Ω to REF 0.1 1.1 V