MIC4102_11 Datasheet, PDF (2/17 Pages) MIC GROUP RECTIFIERS – 100V Half Bridge MOSFET Driver with Anti-Shoot Through Protection PRELIMINARY SPECIFICATIONS

Micrel, Inc.
Ordering Information
Part Number
Standard
Pb-Free
MIC4102BM
MIC4102YM
MIC4102
Input
TTL
Junction Temp. Range
–40° to +125°C
Package
SOIC-8L
Pin Configuration
VDD 1
HB 2
HO 3
HS 4
8 LO
7 VSS
6 LS
5 PWM
SOIC-8L (M)
Pin Description
Pin Number
1
Pin Name
VDD
2
HB
3
HO
4
HS
5
PWM
6
LS
7
VSS
8
LO
Pin Function
Positive Supply to lower gate drivers. Decouple this pin to VSS (Pin 7). Bootstrap
diode connected to HB (pin 2).
High-Side Bootstrap supply. External bootstrap capacitor is required. Connect
positive side of bootstrap capacitor to this pin. Bootstrap diode is on-chip.
High-Side Output. Connect to gate of High-Side power MOSFET.
High-Side Source connection. Connect to source of High-Side power MOSFET.
Connect negative side of bootstrap capacitor to this pin.
Control Input. PWM high signal makes high-side HO output high, and low-side
LO output low. PWM low signal makes high-side HO output low, and low-side
LO output high.
Low-Side Disable. When pulled low, this control signal immediately terminates
the low-side LO output drive. The low-side LO output drive will remain low until
this signal is removed. HS drive is not affected by the LS signal. Here is the
logic table:
LS PWM LO HO
0
0
00
0
1
01
1
0
10
1
1
01
Chip negative supply, generally will be grounded.
Low-Side Output. Connect to gate of Low-Side power MOSFET.
November 2006
2
M9999-112806