Rainbow Electronics MAX5064 - Manual (Page 8)

MAX5062/MAX5063/MAX5064
125V/2A, High-Speed,
Half-Bridge MOSFET Drivers
8 _______________________________________________________________________________________
PIN NAME FUNCTION
1 BST
Boost Flying Capacitor Connection. Connect a 0.1µF ceramic capacitor between BST and HS for the
high-side MOSFET driver supply.
2 DH High-Side-Gate Driver Output. Drives high-side MOSFET gate.
3 HS Source Connection for High-Side MOSFET. Also serves as a return terminal for the high-side driver.
4 AGND Analog Ground. Return path for low-switching current signals. IN_H/IN_L inputs referenced to
5 BBM
Break-Before-Make Programming Resistor Connection. Connect a 10k Ω to 100kΩ resistor from BBM
to AGND to program the break-before-make time (t BBM ) from 16ns to 95ns. Resistance values
greater than 200k Ω disables the BBM function and makes t
BBM
= 1ns. Bypass this pin with at least a
1nF capacitor to AGND.
6 IN_H-
High-Side Inverting CMOS (V DD / 2) (MAX5064A), or TTL (MAX5064B) Logic Input. Connect to
AGND when not used.
7 IN_H+
High-Side Noninverting CMOS (V DD / 2) (MAX5064A), or TTL (MAX5064B) Logic Input. Connect to
V DD when not used.
8 IN_L-
Low-Side Inverting CMOS (V DD / 2) (MAX5064A), or TTL (MAX5064B) Logic Input. Connect to AGND
when not used.
9 IN_L+
Low-Side Noninverting CMOS (V DD / 2) (MAX5064A), or TTL (MAX5064B) Logic Input. Connect to
V DD when not used.
10 PGND
Power Ground. Return path for high-switching current signals. Use PGND as a return path for the
low-side driver.
11 DL Low-Side-Gate Driver Output. Drives the low-side MOSFET gate.
12 V DD Power Input. Bypass to PGND with a 0.1µF ceramic in parallel with a 1µF ceramic capacitor.
— EP
Exposed Pad. Internally connected to AGND. Externally connect to a large ground plane to aid in
heat dissipation.
MAX5064 Pin Description
PIN NAME FUNCTION
1 V DD Power Input. Bypass to GND with a parallel combination of 0.1µF and 1µF ceramic capacitor.
2 BST
Boost Flying Capacitor Connection. Connect a 0.1µF ceramic capacitor between BST and HS for the
high-side MOSFET driver supply.
3 DH High-Side-Gate Driver Output. Driver output for the high-side MOSFET gate.
4 HS Source Connection for High-Side MOSFET. Also serves as a return terminal for the high-side driver.
5 IN_H High-Side Noninverting Logic Input
6 IN_L
Low-Side Noninverting Logic Input (MAX5062A/C, MAX5063A/C). Low-side inverting logic input
(MAX5062B/D, MAX5063B/D).
7 GND Ground. Use GND as a return path to the DL driver output and IN_H/IN_L inputs.
8 DL Low-Side-Gate Driver Output. Drives low-side MOSFET gate.
— EP
Exposed Pad. Internally connected to GND. Externally connect the exposed pad to a large ground
plane to aid in heat dissipation (MAX5062C/D, MAX5063C/D only).
MAX5062/MAX5063 Pin Description