Datasheet

MCP19111
DS22331A-page 22  2013 Microchip Technology Inc.
4.2 Electrical Characteristics
Electrical Specifications: Unless otherwise noted, V
IN
= 12V, V
REF
= 1.2V, F
SW
=300kHz, T
A
=+25°C.
Boldface specifications apply over the T
A
range of -40°C to +125°C.
Parameter Symbol Min Typ Max Units Conditions
Input
Input Voltage V
IN
4.5 — 32 V
Input Quiescent Current I
Q
—510 mA Not switching
Shutdown Current I
SHDN
—1.82.2 mA Note 4
Adjustable Input Under
Voltage Lockout Range
UVLO 3 — 32 V VINLVL is a LOG DAC
Input Under Voltage
Lockout Hysteresis
UVLO
HYS
— 13 — % Hysteresis applied to
adjustable UVLO setpoint
Overcurrent
Overcurrent Minimum
Threshold
OC
MIN
—160—mV
Overcurrent Maximum
Threshold
OC
MAX
—620—mV
Overcurrent Mid-Scale
Threshold
OC
MID
240 400 550 mV
Overcurrent Step Size OC
STEP_SIZE
10 15 20 mV
Adjustable OC Leading
Edge Blanking Minimum
Set Point
LEB
min
—114—ns
Adjustable OC Leading
Edge Blanking Maximum
Set Point
LEB
max
—780—ns
Current Sense
Current Sense Minimum
AC Gain
I
AC_GAIN
—0—dB
Current Sense Maximum
AC Gain
I
AC_GAIN
—22.8—dB
Current Sense AC Gain
Mid Set Point
I
AC_GAIN
8.5 11.5 14 dB
Current Sense AC Gain
Step Size
I
AC_GAIN_STEP
—1.5—dB
Current Sense AC Gain
Offset Voltage
I
AC_OFFSET
-175 9 135 mV
Current Sense Minimum
DC Gain
I
DC_GAIN
—19.5—dB
Current Sense Maximum
DC Gain
I
DC_GAIN
—35.7—dB
Current Sense DC Gain
Mid Set Point
I
DC_GAIN
27 28.6 30.3 dB
Current Sense DC Gain
Step Size
I
DC_GAIN_STEP
—2.3—dB
Note 1: Ensured by design. Not production tested.
2: V
DD-OUT
is the voltage present at the V
DD
pin. V
DD
is the internally generated bias voltage.
3: This is the total source current for all GPIO pins combined. Individually, each pin can source a maximum of
25 mA.
4: PE1 = 0x00h, ABECON = 0x00h, ATSTCON = 0x80h, WPUGPA = 0x00h, WPUGPB = 0x00h, and
SLEEP command issued to PIC core, see SECTION 16.0.