ISL6567 Datasheet, PDF (5/26 Pages) Intersil Corporation – Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers

ISL6567
Absolute Maximum Ratings
Supply Voltage, VCC, PVCC . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V
Shunt Regulator Voltage, V_VREG . . . . . . . . . . . . . . . -0.3V to +6.5V
Boot Voltage, V_BOOT . . . . . . . . . . . . . PGND - 0.3V to PGND + 27V
Phase Voltage, V_PHASE . . . . . . . . . . V_BOOT - 7V to V_BOOT + 0.3V
Upper Gate Voltage, V_UGATE . . . . V_PHASE - 0.3V to V_BOOT + 0.3V
Lower Gate Voltage, V_LGATE. . . . . . . . PGND - 0.3V to VCC + 0.3V
Input, Output, or I/O Voltage . . . . . . . . . GND - 0.3V to VCC + 0.3V
Recommended Operating Conditions
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . +4.9V to +5.5V
Ambient Temperature
ISL6567CRZ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
ISL6567IRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Thermal Information
Thermal Resistance
θ_JA (°C/W) θ_JC (°C/W)
QFN Package (Notes 1, 2). . . . . . . . . .
43
7
Ambient Operating Temperature Range . . . . . . . . . .-40°C to +85°C
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
1. 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.
2. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Operating Conditions: V_CC = 5V, T_J = -40°C to +85°C, unless otherwise specified. Parameters with MIN and/or
MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by
characterization and are not production tested.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNITS
BIAS SUPPLY AND INTERNAL OSCILLATOR
Input Bias Supply Current
Rising VCC POR (Power-On Reset) Threshold
I_VCC; EN > 0.7V; LGATE, UGATE open
-
7.6
9
mA
4.30
4.40
4.50
V
VCC POR Hysteresis
0.46
0.51
0.58
V
Rising PVCC POR Threshold
3.60
3.67
3.75
V
Shunt Regulation
Maximum Shunt Current
Switching Frequency (Per Channel; Note 4)
Frequency Tolerance
Oscillator Peak-to-Peak Ramp Amplitude
Maximum Duty Cycle
CONTROL THRESHOLDS
V_VCC; I_VREG = 0mA to 120mA
I_{VREG_MAX}
F_SW
F_SW
V_OSC
d_MAX
4.90
5.10
5.35
V
120
-
-
mA
200
-
2000 kHz
-10
-
10
%
-
1.4
-
V
-
66
-
%
EN Threshold
-
0.65
-
V
EN Hysteresis Current
-
20
-
µA
MON Power-Good Enable Threshold
MON Hysteresis Current
V_{MON_TH}
290
305
320 mV
-
10
-
µA
SOFT-START
SS Current
I_SS
SS Ramp Amplitude
-
22
-
µA
0.55
-
3.60
V
SS Threshold for Output Gates Turn-Off
0.40
-
-
V
REFERENCE AND DAC
System Accuracy (Commercial Temp. Range)
-0.6
-
0.6
%
System Accuracy (Industrial Temp. Range)
-0.8
-
0.8
%
Internal Reference
V_REF
-
0.6
-
V
5
FN9243.3
May 28, 2009