27

LTC4221

4221f

PACKAGE DESCRIPTIO

GN Package

16-Lead Plastic SSOP (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1641)

GN16 (SSOP) 0204

.016 – .050

(0.406 – 1.270)

.015 ± .004

(0.38 ± 0.10)

× 45°

0° – 8° TYP

.007 – .0098

(0.178 – 0.249)

.0532 – .0688

(1.35 – 1.75)

.008 – .012

(0.203 – 0.305)

TYP

.004 – .0098

(0.102 – 0.249)

.0250

(0.635)

BSC

12

3

4

5

6

7

8

.229 – .244

(5.817 – 6.198)

.150 – .157**

(3.810 – 3.988)

16 15 14 13

.189 – .196*

(4.801 – 4.978)

12 11 10 9

.009

(0.229)

REF

.254 MIN

RECOMMENDED SOLDER PAD LAYOUT

.150 – .165

.0250 BSC

.0165 ± .0015

.045 ±.005

*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

INCHES

(MILLIMETERS)

NOTE:

1. CONTROLLING DIMENSION: INCHES

2. DIMENSIONS ARE IN

3. DRAWING NOT TO SCALE

Sequenced Up/Down, Channel 1 Up First, Down Last

ON2

FAULT

GND

LTC4221

Z1

Z2

D1

1

16

7

10

9

8

FB2

PWRGD2

PWRGD1

3.3V

5A

2.5V

5A

FB1

LONG

LONG

SHORT

GND

FAULT

LONG

SHORT

D1: 1N4148

Z1, Z2: SMAJ10

TIMER

FILTER

23

4

15

14

13

12

11

6

5

ON1

SENSE2 GATE2

3.3V

2.5V

ON

0V TO 3.3V

OR

3.3V TO 0V

BACKPLANE

CONNECTOR

(FEMALE)

PCB EDGE

CONNECTOR

(MALE)

10Ω

10Ω

R5

13k

R3

8.06k

R2

6.98k

R4

10k

R1

17.8k

14.3k

Q2

IRF7413

5.11k

20k

5.11k

4221 TA05

100nF

1nF

470nF

100nF

Q1

IRF7413

0.004Ω

0.004Ω

TYPICAL APPLICATIO S

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.