ISL6540A Datasheet, PDF (7/22 Pages) Intersil Corporation – Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased Load Capability

ISL6540A
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. Parts are 100% tested at +25°C. Temperature
limits established by characterization and are not production tested. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNITS
OSCILLATOR
OSC_FMAX
OSC_FMIN
ΔOSC
Nominal Maximum Frequency
Nominal Minimum Frequency
Total Variation
(Note 3)
(Note 3)
FS = 250kHz to 2MHz, VFF = 3.3V to 20V
-
2000
-
kHz
-
250
-
kHz
-17
-
+17
%
ΔV_OSC
V_{OSC_MIN}
VFF
Ramp Amplitude
Ramp Bottom
Minimum Usable VFF Voltage
VCC = 5V
-
0.16*VFF
-
V_P-P
-
1.0
-
V
-
3.3
-
V
PWM
D_MAX
Maximum Duty Cycle
D_MIN
Minimum Duty Cycle
REFERENCE TRACKING
Leading and Trailing-edge Modulation
Leading and Trailing-edge Modulation
-
100
-
0
-
%
-
%
V_REFIN
Input Voltage Range
V_{REFIN_OS} External Reference Offset
I_REFOUT Maximum Drive Current
V_REFOUT Output Voltage Range
V_{REFOUT_OS} Maximum Output Voltage Offset
C_{REFOUT_MIN} Minimum Load Capacitance
V_{REFIN_DIS} Input Disable Voltage
REFERENCE
VCC = 5V
REFIN = 0.6V
C_L = 1µF, VCC = 5V, REFOUT = 1.25V
C_L = 1µF
C_L = 1µF REFOUT = 1.25V
REFOUT = 1.25V
VCC = 5V
0.068
-
VCC - 1.8V V
-1.8
0
2.2
mV
-
19
-
mA
0.01
-
VCC - 1.8V V
-6
-
11
mV
-
1.0
-
µF
VCC - 0.6
-
VCC - 0.58 V
V_{REF_COM} Reference Voltage
V_{REF_IND}
V_{SYS_COM} System Accuracy
V_{SYS_IND}
ERROR AMPLIFIER
T_A = 0°C to +70°C
T_A = -40°C to +85°C
T_A = 0°C to +70°C
T_A = -40°C to +85°C
0.587
0.591
0.595
V
0.585
0.591
0.597
V
-0.68
-
0.68
%
-1.0
-
1.0
%
DC Gain
UGBW Unity Gain-Bandwidth
SR
Slew Rate
DIFFERENTIAL AMPLIFIER
R_L = 10k, C_L = 100p, at COMP Pin
R_L = 10k, C_L = 100p, at COMP Pin
R_L = 10k, C_L = 100p, at COMP Pin
-
88
-
15
-
6
-
dB
-
MHz
-
V/µs
UG
DC Gain
Standard Instrumentation Amplifier
-
0
-
dB
UGBW Unity Gain Bandwidth
-
20
-
MHz
SR
Slew Rate
COMP = 10pF
-
10
-
V/µs
V_{OFFSET_IND} Offset
I_VSEN-
Negative Input Source Current
Input Common Mode Range Max
-1.9
0
1.9
mV
-
6
-
µA
-
VCC - 1.8
-
V
Input Common Mode Range Min
-
-0.2
-
V
V_{VSEN_DIS} VSEN- Disable Voltage
INTERNAL LINEAR REGULATOR
-
VCC
-
V
I_VIN
R_LIN
PVCC
Maximum Current
Saturated Equivalent Impedance V_IN = 3.3V, Load = 100mA
Linear Regulator Voltage
V_IN = 20V, Load = 100mA
-
200
-
2
5.30
5.50
-
mA
3.9
Ω
5.71
V
7
FN6288.5
October 7, 2008