IR3088M ,XPHASE IC with Fault and Overtemp DetectFEATURES • 2.5A Average Gate Drive Current • Loss-Less Inductor Current Sense • Internal Inductor ..
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IR3088M
XPHASE IC with Fault and Overtemp Detect
International
19R Rectifier IR3088
DATA SHEET
XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT
DESCRIPTION
The IR3088 Phase IC combined with an IR XPhaseTM Control IC provides a full featured and flexible way to
implement power solutions for the latest high performance CPUs and ASICs. The "Control" IC provides
overall system control and interfaces with any number of "Phase" ICs which each drive and monitor a single
phase of a multiphase converter. The XPhaseTM architecture results in a power supply that is smaller, less
expensive, and easier to design while providing higher efficiency than conventional approaches.
The IR3088 is intended for the following application conditions;
q Excessive impedance between converter and load
. Output voltage exceeding the control IC reference/VID voltage is desired
FEATURES
q 2.5A Average Gate Drive Current
. Loss-Less Inductor Current Sense
. Internal Inductor DCR Temperature Compensation
. Programmable Phase Delay
. Programmable Feed-Forward Voltage Mode PWM Ramp
. Sub 100ns Minimum Pulse 1/Nfldth supports 1MHz per-phase operation
. Current Sense Amplifier drives a single wire Average Current Share Bus
. Current Share Amplifier reduces PWM Ramp slope to ensure sharing between phases
. Body BrakingTM disables Synchronous MOSFET for improved transient response and prevents negative
output voltage at converter turn-off
Phase Fault Detection
Programmable Phase Over-Temperature Detection
Control F ET driver's 25V input voltage capability simplifies boot-strap supply design
Small thermally enhanced 20L MLPQ package
PACKAGE PINOUT
gl e e r e
I I I I I
Le Z Ln z': E
(n 0 Li. a -
S < tD o 8
1 l 15
- RMPIN+ VCCH -
_ RMPIN- IR3088 GATEH _14
L HOTSET PHASE PGND _13
'l- VRHOT IC GATEL -12
5_ ISHARE I VCCL _11
g E E g 8
8 m E 2 >
I I I I I
Page 1 of 15 9/1/03
International
IEER Rectifier IR3088
ORDERING INFORMATION
Device Order Quantity
IR3088MTR 3000 per Reel
IR3088M 5 per Bag
ABSOLUTE MAXIMUM RATINGS
Operating Junction Temperature... ... ... ... ... ..150°C
Storage Temperature Range ...................... -65°C to 150°C
ESD Rating ............................................. HBM Class 1C JEDEC standard
PIN ' PIN NAME VMAX Vor: ISOURCE Isim;
1 RMPIN+ 20V -0.3V 1mA 1mA
2 RMPIN- 20V -0.3V 1mA 1mA
3 HOTSET 20V -0.3V 1mA 1mA
4 VRHOT 20V -0.3V 1mA 30mA
5 ISHARE 20V -0.3V 5mA 5mA
6 SCOMP 20V -0.3V 1mA 1mA
7 EAIN 20V -0.3V 1mA 1mA
8 PWMRMP 20V -0.3V 1mA 20mA
9 LGND n/a n/a 50mA n/a
10 VCC 24V -0.3V n/a 50mA
11 VCCL 27V -0.3V n/a 3A for 100ns,
200mA DC
12 GATEL 27V -0.3V DC, -2V for 3A for 100ns, 3A for 100ns,
100ns 200mA DC 200mA DC
13 PGND 0.3V -0.3V 3A for 100ns, n/a
200mA DC
14 GATEH 27V -0.3V DC, -2V for 3A for 100ns, 3A for 100ns,
100ns 200mA DC 200mA DC
15 VCCH 27V -0.3V n/a 3A for 100ns,
200mA DC
16 CSIN+ 20V -0.3V 1mA 1mA
17 CSIN- 20V -0.3V 1mA 1mA
18 PHSFLT 20V -0.3V 1mA 20mA
19 DACIN 20V -0.3V 1mA 1mA
20 BIASIN 20V -0.3V 1mA 1mA
Page 2 of 15 9/1/03
