MAX15569 Datasheet, PDF (7/41 Pages) Maxim Integrated Products – 2-Phase/1-Phase QuickTune-PWM Controller with Serial I2C Interface

MAX15569
2-Phase/1-Phase QuickTune-PWM Controller with
Serial I²C Interface
Electrical Characteristics (-40°C to +105°C) (continued)
(Circuit of Figure 1. V_IN = 10V, V_BIAS = 5V, VTT = 1.8V, EN = BIAS, GNDS = AGND, VFBAC = V_FB = VCSP_ = V_{CSN_} = 1V
[SETVOUT register 0x07h set to 0x33h]. T_A = -40°C to +105°C, unless otherwise noted.)
PARAMETER
THERMAL PROTECTION
THERM Resistor
SYMBOL
R_THERM
VRHOT Trip Threshold
VALLEY CURRENT LIMIT AND DROOP
Valley Current-Limit Threshold
Voltage (Positive)
V_ILIM
CONDITIONS
Internal pullup resistance
Measured at THERM, with respect to V_BIAS
falling edge; specify as % error for all temp max
DAC code settings; typical hysteresis = 100mV;
T_A = +25°C to +105°C
V_{CSP_} - V_{CSN_}
MIN
5.24
49.5
35
TYP MAX UNITS
5.48 kΩ
50.5
%
41
mV
OC_ALARM Valley Current
Threshold Voltage (Positive,
CSP1 Only)
V_{OC_ALARM} V_CSP1 - V_CSN1
20
26
mV
Current-Balance Offset Voltage
-2.5
+2.5 mV
Current-Sense Common-Mode
Input Range
CSP1, CSN1, CSP2, CSN2
0.5
1.6
V
Phase 2 Disable Threshold
CSP2
3
V_BIAS
- 0.4
V
Droop Amplifier (GMD) Offset
Droop Amplifier (GMD)
Transconductance
G_m(FBAC)
Average (V_{CSP_} - V_{CSN_}) at I_FBAC = 0mA
DI_FBAC/∑D (V_{CSP_} - V_{CSN_}), measured at
FBAC
-1.0
1.176
+1.0 mV
1.224 µA/mV
CURRENT MONITOR (IMON)
Current Monitor Output Current
for Typical Full-Load Conditions
I_IMON ∑(V_{CSP_} - V_{CSN_}) = 25mV
122.2
133.8 µA
Current Monitor Gain
DRIVER CONTROL
G_m(IMON)
DI_IMON/∑D (V_{CSP_} - V_{CSN_}), measured
at IMON
4.8
5.44 µA/mV
DRVPWM_, DRVSKP Output
Logic-High Voltage
V_{OH_DRV} I_SOURCE = 3mA
V_BIAS
- 0.4
V
DRVPWM_, DRVSKP Output
Logic-Low Voltage
V_{OL_DRV} I_SINK = 3mA
0.4
V
DRVPWM_ Output Midlevel
Voltage
1.6
2.3
V
ENABLE LOGIC (EN)
EN Input High Voltage
EN Input Low Voltage
V_{IH_EN}
V_{IL_EN}
0.7 x
V_TT
V
0.33
V
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