ISL6556A Datasheet, PDF (7/24 Pages) Intersil Corporation – Optimized Multi-Phase PWM Controller with 6-Bit DAC for VR10.X Application

ISL6556A
Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7V
Input, Output, or I/O Voltage (except OVP) . . GND -0.3V to V_CC +0.3V
OVP Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+15V
ESD (Human body model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>4kV
ESD (Machine model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>300V
ESD (Charged device model) . . . . . . . . . . . . . . . . . . . . . . . . . .>2kV
Operating Conditions
Supply Voltage, VCC (5V bias mode, Note 4) . . . . . . . . . . +5V ±5%
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 125°C
Thermal Information
Thermal Resistance
θ_JA (°C/W)
θ_JC (°C/W)
SOIC Package (Note 1) . . . . . . . . . . . .
60
N/A
QFN Package (Notes 2, 3). . . . . . . . . .
32
3.5
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
(SOIC - Lead Tips Only)
CAUTION: Stress above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational section of this specification is not implied.
NOTES:
1. θ_JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
3. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Operating Conditions: VCC = 5V or ICC < 25mA (Note 4), T_J = 0°C to 105°C.
Unless Otherwise Specified.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
VCC SUPPLY CURRENT
Nominal Supply
VCC = 5VDC; EN = 5VDC; R_T = 100kΩ,
ISEN1 = ISEN2 = ISEN3 = ISEN4 = -70µA
-
14 18 mA
Shutdown Supply
SHUNT REGULATOR
VCC = 5VDC; EN = 0VDC; R_T = 100kΩ
-
10 14 mA
VCC Voltage
VCC Sink Current
POWER-ON RESET AND ENABLE
VCC tied to 12VDC through 300Ω resistor, R_T = 100kΩ
VCC tied to 12VDC through 300Ω resistor, R_T = 100kΩ
5.6 5.9 6.2
V
-
-
25 mA
POR Threshold
VCC Rising
4.2 4.31 4.50 V
VCC Falling
3.7 3.82 4.00 V
ENABLE Threshold
EN Rising
1.22 1.24 1.26 V
Hysteresis
-
100
-
mV
Fault Reset
1.10 1.14 1.18 V
ENLL Input Logic Low Level
-
-
0.4
V
ENLL input Logic High Level
0.8
-
-
V
ENLL Leakage Current
ENLL = 5V
-
-
1
µA
REFERENCE VOLTAGE AND DAC
System Accuracy (VID = 1.2V - 1.6V)
(Note 5)
-0.5
-
0.5 %VID
System Accuracy (VID = 0.8375V - 1.1875V)
(Note 5)
-0.8
-
0.8 %VID
VID Pull Up
-65 -50 -35 µA
VID Input Low Level
-
-
0.4
V
VID Input High Level
0.8
-
-
V
DAC Source/Sink Current
VID = 010100
-200 - 200 µA
OFSOUT Source/Sink Current
(ISL6556ACR Only)
-50
-
50
µA
REF Source/Sink Current
-50
-
50
µA
7