MAX15569 Datasheet, PDF (6/41 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)
(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
BIAS CURRENTS
BIAS Voltage Range
I²C Interface Supply (V_TT)
Quiescent Supply Current
(BIAS)
PWM CONTROLLER
DC Output Voltage Accuracy
(Note 2)
SYMBOL
CONDITIONS
MIN
TYP MAX UNITS
V_BIAS
V_TT
I_BIAS
Skip mode, measured at BIAS, V_TT = 1.8V; FB
forced above the regulation point; EN = BIAS
4.75
1.6
5.25
V
4.0
V
5
mA
Measured at FB,
with respect to
DAC codes from 0.50V
to 1V
-10
GNDS; includes load _{DAC codes from 1V to}
regulation error
1.60V
-1.0
+10 mV
+1.0
%
GNDS Gain
DRVPWM_ On-Time (Note 3)
Minimum Off-Time (Note 3)
Slew-Rate Accuracy (see Table
8 for Soft-Start and Regular
Slew-Rate Combinations)
FAULT PROTECTION
Upper INT and Output
Overvoltage-Protection Trip
Threshold
Lower INT and Output
Undervoltage-Protection Trip
Threshold
A_GNDS
t_ON
t_OFF(MIN)
Measured at DRVPWM_,
R_TON = 136.3kΩ, (1400kHz)
Measured at DRVPWM_,
R_TON = 200kΩ, (1000kHz)
Measured at DRVPWM_,
R_TON = 326.7kΩ, (600kHz)
Measured at DRVPWM_
Slew rate = 3.5mV/µs , 4.5mV/µs, 5.5mV/µs,
7mV/µs, 9mV/µs, 11mV/µs, 14mV/µs, 18mV/µs,
22mV/µs, 28mV/µs, 36mV/µs, 44mV/µs
(nominal)
V_OVP Soft-start completed; measured at FB
V_UVP
Measured at FB, with respect to unloaded
output voltage
0.97
60
92
141
-20
1.78
-300
1.03 V/V
82
114
ns
192
133
ns
%
1.88
V
-200 mV
Output Undervoltage
Propagation Delay
t_UVP FB forced 25mV below trip threshold
100
350
µs
INT Output Low Voltage
V_BIAS Undervoltage-Lockout
Threshold
I_SINK = 4mA
V_UVLO
Rising edge, 50mV typical hysteresis; controller
disabled below this level
4.3
0.3
V
4.7
V
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