ISL6323 Datasheet, PDF (6/34 Pages) Intersil Corporation – Hybrid SVI/PVI

ISL6323
Absolute Maximum Ratings
Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
Supply Voltage (PVCC) . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +15V
Absolute Boot Voltage (V_BOOT). . . . . . . . GND - 0.3V to GND + 36V
Phase Voltage (V_PHASE) . . . . . . . . GND - 0.3V to 15V (PVCC = 12)
GND - 8V (<400ns, 20µJ) to 24V (<200ns, V_BOOT-PHASE = 12V)
Upper Gate Voltage (V_UGATE). . . . V_PHASE - 0.3V to V_BOOT + 0.3V
V_PHASE - 3.5V (<100ns Pulse Width, 2µJ) to V_BOOT + 0.3V
Lower Gate Voltage (V_LGATE) . . . . . . . GND - 0.3V to PVCC + 0.3V
GND - 5V (<100ns Pulse Width, 2µJ) to PVCC+ 0.3V
Input, Output, or I/O Voltage . . . . . . . . . GND - 0.3V to VCC + 0.3V
ESD Classification
Human Body Model (Class 2) . . . . . . . . . . . . . . . . . . . . . . . . .2kV
Machine Model (Class B) . . . . . . . . . . . . . . . . . . . . . . . . . . . .200V
Charged Device Model (Class IV) . . . . . . . . . . . . . . . . . . . . . .1kV
Thermal Information
Thermal Resistance
θ_JA (°C/W) θ_JC (°C/W)
QFN Package (Notes 1, 2) . . . . . . . . . .
30
2
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
Recommended Operating Conditions
VCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+5V ±5%
PVCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . +5V to 12V ±5%
Ambient Temperature (ISL6323CRZ) . . . . . . . . . . . . . 0°C to +70°C
Ambient Temperature (ISL6323IRZ) . . . . . . . . . . . . .-40°C to +85°C
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.
3. Limits should be considered typical and are not production tested.
Electrical Specifications Recommended Operating Conditions (0°C to +70°C), Unless Otherwise Specified.
PARAMETER
TEST CONDITIONS
MIN
TYP
BIAS SUPPLIES
Input Bias Supply Current
Gate Drive Bias Current - PVCC1_2 Pin
Gate Drive Bias Current - PVCC_NB Pin
VCC POR (Power-On Reset) Threshold
I_VCC; EN = high
I_{PVCC1_2}; EN = high
I_{PVCC_NB}; EN = high
VCC Rising
15
22
1
1.8
0.3
0.9
4.20
4.40
VCC Falling
3.70
3.90
PVCC POR (Power-On Reset) Threshold
PVCC Rising
4.20
4.40
PVCC Falling
3.70
3.90
PWM MODULATOR
Oscillator Frequency Accuracy, f_SW
R_T = 100kΩ (±0.1%) to Ground, T_A = +25°C
225
250
(Droop Enabled)
R_T = 100kΩ (±0.1%) to VCC, T_A = +25°C
(Droop Disabled)
240
270
Typical Adjustment Range of Switching Frequency (Note 3)
0.08
Oscillator Ramp Amplitude, V_P-P
(Note 3)
1.50
CONTROL THRESHOLDS
EN Rising Threshold
0.80
0.88
EN Hysteresis
70
130
PWROK Input HIGH Threshold
1.1
PWROK Input LOW Threshold
0.95
VDDPWRGD Sink Current
Open drain, V_VDDPWRGD = 400mV
PWM Channel Disable Threshold
V_ISEN3-, V_ISEN4-
4.4
PIN_ADJUSTABLE OFFSET
OFS Source Current Accuracy (Positive Offset)
OFS Sink Current Accuracy (Negative Offset)
R_OFS = 10kΩ (±0.1%) from OFS to GND
R_OFS = 30kΩ (±0.1%) from OFS to VCC
27.5
31
50.5
53.5
MAX UNITS
30
mA
3
mA
2
mA
4.55
V
4.10
V
4.55
V
4.10
V
275
kHz
300
kHz
1.0
MHz
V
0.92
V
190
mV
V
V
4
mA
V
34.5
µA
56.5
µA
6
FN9278.2
April 7, 2008