Rainbow Electronics MAX17409 - Manual (Page 5)

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V IN = 12V, V DD = V CC = 5V, SHDN = ILIM = V CC , SKIP = GNDS = PGND = GND, V FB = V CSP = V CSN = 1.05V;
G5–G0 set for 1.05V (G0–G5 = 100110); T A = 0 °C to +85°C, unless otherwise specified. Typical values are at T
A = +25°C.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CURRENT MONITOR
Current-Monitor Transconductance G m(IMON)
I
IMON / (V
CSP - V CSN ), V CSN = 0.5V to 1.0V 4.9 5.0 51 mS
Current-Monitor Offset Referred
to V(CSP,CSN)
I IMON = 0 -1.0 +1.0 mV
IMON Clamp Voltage V IMON I IMON = -1.0mA 1.05 1.10 1.15 V
LOGIC AND I/O
Logic-Input High Voltage V IH
SHDN, SKIP 2.3 V
Logic-Input Low Voltage V IL
SHDN, SKIP 1.0 V
Low-Voltage Logic-Input
High Voltage
V IHLV G0–G5 0.67 V
Low-Voltage Logic-Input
Low Voltage
V ILLV G0–G5 0.33 V
Logic-Input Current T A = +25°C, SHDN, SKIP, G0–G5 = 0 or 5V -1 +1 µA
MAX17409
1-Phase Quick-PWM GPU Controller
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ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V IN = 12V, V DD = V CC = 5V, SHDN = ILIM = V CC , SKIP = GNDS = PGND = GND, V FB = V CSP = V CSN = 1.05V;
G5–G0 set for 1.05V (G0–G5 = 100110); T A = -40 °C to +105°C, unless otherwise specified.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
PWM CONTROLLER
Input Voltage Range V CC , V DD 4.5 5.5 V
DC Output-Voltage Accuracy
Measured at FB with respect to GNDS,
includes load regulation error (Note 4)
-10 +10 mV
GNDS Input Range For positive offset and remote-sense errors -200 +200 mV
GNDS/OFSP Gain A GNDS V OUT / V GNDS , -200mV V GNDS +200mV 0.95 1.05 V/V
V CC = 4.5V to 5.5V, I REF = 100µA 1.97 2.03
REF Voltage V REF
I REF = 0 to 1mA 1.95 2.03
V
Dynamic VID Slew-Rate Accuracy 10 15 mV/µs
Soft-Start/Soft-Shutdown
Slew-Rate Accuracy
1.248 1.872 mV/µs
R TON = 96.75k 142 192
R TON = 200k 300 366 On-Time (Note 5) t ON V IN = 12V, V FB = 1.2V
R TON = 303.25k 425 575
ns
Minimum Off-Time t
OFF(MIN)
Measured at DH (Note 5) 400 ns
BIAS CURRENTS
Quiescent Supply Current (V CC ) I CC
Measured at V CC , SKIP = 5V, FB forced
above the regulation point
3 mA