Owner's manual

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
_______________________________________________________________________________________ 5
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