ltc4221 Linear Technology Corporation, ltc4221 Datasheet - Page 27
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ltc4221
Manufacturer Part Number
ltc4221
Description
Dual Hot Swap Controller/power Sequencer With Dual Speed, Dual Level Fault Protection
Manufacturer
Linear Technology Corporation
Datasheet
1.LTC4221.pdf
(28 pages)
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PACKAGE DESCRIPTIO
TYPICAL APPLICATIO S
(0.178 – 0.249)
.007 – .0098
NOTE:
1. CONTROLLING DIMENSION: INCHES
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
0V TO 3.3V
3.3V TO 0V
V
V
3.3V
2.5V
FAULT
CC1
CC2
ON
OR
GND
(0.406 – 1.270)
CONNECTOR
BACKPLANE
.016 – .050
(FEMALE)
(MILLIMETERS)
INCHES
D1: 1N4148
Z1, Z2: SMAJ10
CONNECTOR
PCB EDGE
(MALE)
0° – 8° TYP
(0.38 ± 0.10)
.015 ± .004
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
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.
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
LONG
LONG
SHORT
SHORT
LONG
U
8.06k
6.98k
17.8k
Sequenced Up/Down, Channel 1 Up First, Down Last
× 45°
R3
R2
R1
U
C
470nF
TIMER
(0.203 – 0.305)
Z1
16-Lead Plastic SSOP (Narrow .150 Inch)
.008 – .012
TYP
R
10Ω
R4
10k
.0532 – .0688
X1
(1.35 – 1.75)
C
100nF
(Reference LTC DWG # 05-08-1641)
X1
.254 MIN
.0165 ± .0015
RECOMMENDED SOLDER PAD LAYOUT
Z2
C
FILTER
GN Package
1nF
R5
13k
D1
16
10
R
10Ω
1
7
9
8
X2
C
100nF
X2
ON1
ON2
FAULT
GND
TIMER
FILTER
(0.635)
.0250
BSC
V
CC1
(0.102 – 0.249)
.045 ±.005
.150 – .165
2
R
.004 – .0098
0.004Ω
SENSE1
.0250 BSC
SENSE1 GATE1 V
3
IRF7413
Q1
LTC4221
(5.817 – 6.198)
4
.229 – .244
CC2
15
R
0.004Ω
SENSE2
SENSE2 GATE2
14
16 15 14 13
1
PWRGD2
PWRGD1
IRF7413
2 3
Q2
(4.801 – 4.978)
.189 – .196*
FB2
FB1
13
4
12 11 10 9
12
11
6
5
5 6 7
14.3k
5.11k
R
R
F3
F4
LTC4221
4221 TA05
8
R
20k
R
5.11k
GN16 (SSOP) 0204
(3.810 – 3.988)
F1
F2
.150 – .157**
27
V
3.3V
5A
V
2.5V
5A
(0.229)
OUT1
OUT2
.009
REF
4221fa