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UC27221 Fiches technique(PDF) 2 Page - Texas Instruments

No de pièce UC27221
Description  HIGH-EFFICIENCY PREDICTIVE SYNCHRONOUS BUCK DRIVER
Download  34 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

UC27221 Fiches technique(HTML) 2 Page - Texas Instruments

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UCC27221
UCC27222
SLUS486B − AUGUST 2001 − REVISED JULY 2003
2
www.ti.com
1
2
3
4
5
6
7
14
13
12
11
10
9
8
N/C
N/C
VDD
VLO
PVLO
AGND
IN
VHI
G1
SW
SWS
G2S
G2
PGND
PWP PACKAGE
(TOP VIEW)
N/C − No internal connection
AVAILABLE OPTIONS
PWM INPUT
PACKAGED DEVICES
TA
PWM INPUT
(IN)
PowerPAD
t
HTSSOP−14 (PWP)
−40
_C to 105_C
INVERTING
UCC27221PWP
−40
_C to 105_C
NON-INVERTING
UCC27222PWP
{The PWP package is available taped and reeled. Add R suffix to device type
(e.g. UCC27221PWPR) to order quantities of 2,000 devices per reel and 90
units per tube.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)†}
Supply voltage range, VDD
−0.3 to 20 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VHI
30 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SW, SWS
20 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current, IDD, including gate drive current
.100 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sink current (peak) pulsed, G1/G2
4.0 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Source current (peak) pulsed, G1/G2
−4.0 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog input, IN
−3.0 V to VDD + 0.3 V, not to exceed 15 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation at TA = 25°C (PWP package)
3 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating junction temperature range, TJ
−55
°C to 115°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
−65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature soldering 1.6 mm (1/16 inch) from case for 10 seconds
300
°C
. . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
‡ All voltages are with respect to AGND and PGND. Currents are positive into, negative out of the specified terminal.
UCC27221
Not Recommended For New Designs


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