MIC4605 Datasheet, PDF (3/25 Pages) Micrel Semiconductor – 85V Half-Bridge MOSFET Drivers

Micrel, Inc.
MIC4605
Pin Description
MIC4605-1
TDFN
Pin
Number
MIC4605-2
TDFN
Pin
Number
1
1
2
2
3
3
4
4
5
5
6
—
—
6
7
—
—
7
8
8
9
9
10
10
EP
EP
MIC4605-1
SOIC-8
Pin
Number
—
1
2
3
4
5
—
6
—
7
8
—
—
MIC4605-2
SOIC-8
Pin
Number
—
1
2
3
4
—
5
—
6
7
8
—
—
Pin
Name
Pin Function
EN
VDD
HB
HO
HS
HI
PWM
LI
NC
VSS
LO
NC
ePad
Enable Input. Logic high on the enable pin results in
normal operation, conversely, the device enters shutdown
mode with a logic low applied to enable.
Input Supply for Gate Drivers. Decouple this pin to VSS
with a >0.1µF capacitor.
High-Side Bootstrap Supply. An external bootstrap
capacitor is required. Connect the bootstrap capacitor
across this pin and HS. An on-board bootstrap diode is
connected from VDD to HB.
High-Side Drive Output. Connect to the gate of the
external high-side power MOSFET.
High-Side Drive Reference Connection. Connect to
source of the external high-side power MOSFET. Connect
the bottom of bootstrap capacitor to this pin.
High-Side Drive Input
Single PWM Input. Drives both the high- and low-side
outputs out of phase
Low-Side Drive Input.
No Connect. This pin is not connected internally.
Driver Reference Supply Input. Generally connected to
the power ground of external circuitry.
Low-Side Drive Output. Connect to the gate of the
external low-side power MOSFET.
No Connect. This pin is not connected internally.
Exposed Pad. Connect to VSS.
November 11, 2013
3
Revision 1.0