Datasheet

9-Feb-2022

CFR0011-120-01

Revision 1.02

Page 2 of 9

SLG55221-120010

SLG55220-120010

Dual Rail High Voltage Gate Driver

©2022 Renesas Electronics Corporation

Pin Description

Overview

The SLG55221/220 N-Channel FET Gate Drivers are used for controlling and ramping slew rate of the source voltage on N-Chan-

nel FET switches from a CMOS logic level input. Intended as a supporting control element for switched voltage rails in energy

efficient, advanced power management systems, the SLG55221/220 also integrates circuits to discharge opened switched volt-

age rails. The gate driver is available in a variety of configurations supporting a range of turn-on slew rates from 0.80V/ms up to

2V/ms which, depending on load supplying source voltages in the range of 1.0V to 20V results in ramp times from 200

µs to over

20ms (see Application Section). Additionally, an internal discharge circuit provides a controlled path to remove charge from open

power rails. The SLG55221/220 gate drive is packaged in an 8 pin DFN package. A power good (PG) signal is asserted when

FET1 is fully ON.

When used with external N-Channel FETs, the SLG55221 supports low transient, energy efficient switching of high current loads

at source voltages ranging from 1.0V to 20V.

A ‘Low Drive’ version of the device, is available to support applications where FET Vgs cannot exceed 8V.

Ordering Information

Pin #

Pin Name

Type

Pin Description

VCC

1

Power

Supply Voltage

2

ON

Input

CMOS Logic Level. See SLG55251 for Control Input ON# instead of ON.

3

DIS2

Output

Discharge Connection for Load2

4

GND

GND

Ground

5

D

Input

FET Drain Connection (Connect to FET with highest VD voltage)

6

S/DIS1

Input/Output

Source Connection,

Discharge Connection for Load1

7

G1/G2

Output

FET Gate Drive for FET1, FET2

8

PG

Output

CMOS Power Good Signal

Exposed

Bottom

Pad

GND

GND

Ground

Part Number

Ramp Slew

Rate

(Volts/ms)

Delay Time

(ms)

Discharge

Resistor

(ohms)

Package Type

SLG55220 -120010V

1.30

0.50

200

TDFN-8

SLG55221-120010V

1.30

0.50

200

TDFN-8

SLG55220 -120010VTR

1.30

0.50

200

TDFN-8 - Tape and Reel (3k units)

SLG55221-120010VTR

1.30

0.50

200

TDFN-8 - Tape and Reel (3k units)