Datasheet

© 2008 Microchip Technology Inc. DS22083A-page 3
MCP14628
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
V
CC
, Device Supply Voltage............................. -0.3V to +7.0V
V
BOOT
, BOOT Voltage.................................... -0.3V to +36.0V
V
PHASE
, Phase Voltage...........V
BOOT
- 7.0V to V
BOOT
+0.3V
V
FCCM
, FCCM Voltage........................... -0.3V to V
CC
+ .0.3V
V
PWM
, PWM Voltage............................... -0.3V to V
CC
+0.3V
V
UGATE
, UGATE Voltage....... V
PHASE
- 0.3V to V
BOOT
+0.3V
V
LGATE
, LGATE Voltage.......................... -0.3V to V
CC
+0.3V
ESD Protection on all Pins....................................2 kV (HBM)
† Notice: Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational sections of this specification is not intended.
Exposure to maximum rating conditions for extended periods
may affect device reliability.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, V
CC
=5V, T
J
= -40°C to +125°C
Parameters Sym Min Typ Max Units Conditions
V
CC
Supply Requirements
Recommended Operating Range V
CC
4.5 5.0 5.5 V
Bias Supply Voltage I
VCC
— 80 — µA PWM pin floating,
V
FCCM
=5V
UVLO (Rising V
CC
) — 3.40 3.90 V
UVLO (Falling V
CC
)2.402.90—V
Hysteresis — 500 — mV
PWM Input Requirements
PWM Input Current I
PWM
—250—µAV
PWM
=5V
— -250 — µA V
PWM
=0V
PWM Rising Threshold 0.70 1.00 1.30 V
PWM Falling Threshold 3.50 3.80 4.10 V
Tri-State Shutdown Hold-off Time t
TSSHD
100 175 250 ns T
A
= +25°C, Note 2
FCCM input Requirements
FCCM Low Threshold 0.50 — — V
FCCM High Threshold — — 2.0 V
Output Requirements
High Drive Source Resistance — 1.0 2.5 Ω 500 mA source current,
Note 1
High Drive Sink Resistance — 1.0 2.5 Ω 500 mA sink current,
Note 1
High Drive Source Current — 2.0 — A Note 1
High Drive Sink Current — 2.0 — A Note 1
Low Drive Source Resistance — 1 2.5 Ω 500 mA source current,
Note 1
Low Drive Sink Resistance — 0.5 1.0 Ω 500 mA sink current,
Note 1
Low Drive Source Current — 2.0 — A Note 1
Low Drive Sink Current — 3.5 — A Note 1
Note 1: Parameter ensured by design, not production tested.
2: See Figure 4-1 for parameter definition.