ISL6535 Datasheet, PDF (4/14 Pages) Intersil Corporation – Synchronous Buck Pulse-Width Modulator PWM Controller

ISL6535
Absolute Maximum Ratings
Supply Voltage, V_PVCC,V_VCC . . . . . . . . . . . . . . GND - 0.3V to +16V
Enable Voltage, V_EN . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +16V
Soft-start Done Voltage, V_SSDONE . . . . . . . . . . GND - 0.3V to +16V
Boot Voltage, V_BOOT . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +36V
Phase Voltage, V_PHASE . . . . . . . . . V_BOOT - 16V to V_BOOT + 0.3V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 5.0V
ESD Rating
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Thermal Information
Thermal Resistance (Typical)
θ_JA (°C/W) θ_JC (°C/W)
SOIC Package (Note 1) . . . . . . . . . . . .
95
N/A
QFN Package (Note 2). . . . . . . . . . . . .
47
8.5
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
Operating Conditions
Supply Voltage, V_VCC . . . . . . . . . . . . . . . . . . . . . . . . . . +12V ±10%
Supply Voltage, V_PVCC . . . . . . . . . . . . . . . . . . . . . . . . . +12V ±10%
Boot to Phase Voltage, V_BOOT - V_PHASE . . . . . . . . . . . . . . <V_PVCC
Ambient Temperature Range, ISL6535C . . . . . . . . . . . 0°C to +70°C
Ambient Temperature Range, ISL6535I. . . . . . . . . . .-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 with the component mounted on an evaluation PC board in free air.
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. 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
PARAMETER
V_CC SUPPLY CURRENT
Shutdown Supply V_CC
Shutdown Supply V_PVCC
POWER-ON RESET
V_CC/V_PVCC Rising Threshold
V_CC/V_PVCC Hysteresis
OCSET Rising Threshold
OCSET Hysteresis
Enable - Rising Threshold
Enable - Hysteresis
OSCILLATOR
Trim Test Frequency
Total Variation
Ramp Amplitude
ERROR AMPLIFIER
DC Gain
Gain-Bandwidth Product
Slew Rate
PROTECTION
OCSET Current
OCSET Current
OCSET Measurement Offset
Recommended Operating Conditions, unless otherwise noted specifications in bold are valid for process,
temperature, and line operating conditions.
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
I_VCC
I_PVCC
SS/EN = 0V
SS/EN = 0V
3.5
6.1
8.5
mA
0.30
0.5
0.75
mA
6.45
7.10
7.55
V
170
250
500
mV
0.70
0.73
0.75
V
180
200
220
mV
1.4
1.5
1.60
V
175
250
325
mV
ΔV_OSC
R_RT = OPEN V_VCC = 12
8kΩ < R_RT to GND < 200kΩ (Note 3)
R_RT = OPEN
GBWP
SR
R_L = 10kΩ, C_L= 100pF (Note 3)
R_L = 10kΩ, C_L= 100pF (Note 3)
R_L = 10kΩ, C_L= 100pF (Note 3)
I_OCSET T_J = 0°C to +70°C
I_OCSET T_J = -40°C to +85°C
OCP_OFFSET OCSET= 1.5V to 15.4V (Note 3)
175
200
220
kHz
-
±15
-
%
1.7
1.9
2.15
V_P-P
-
88
-
dB
-
15
-
MHz
-
6
-
V/µs
180
200
220
µA
176
200
224
µA
-
±10
-
mV
4
FN9255.1
May 5, 2008