ISL6525 Datasheet, PDF (3/11 Pages) Intersil Corporation – Buck and Synchronous-Rectifier Pulse-Width Modulator (PWM) Controller

ISL6525
Absolute Maximum Ratings
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +15.0V
Boot Voltage, V_BOOT - V_PHASE. . . . . . . . . . . . . . . . . . . . . . . +15.0V
Input, Output or I/O Voltage . . . . . . . . . . . .GND -0.3V to V_CC +0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Operating Conditions
Supply Voltage, V_CC . . . . . .
Ambient Temperature Range
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
+12V ±10%
0^oC to 70^oC
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . 0^oC to 125^oC
Thermal Information
Thermal Resistance (Typical, Note 1)
θ_JA (^oC/W)
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
117
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 150^oC
Maximum Storage Temperature Range . . . . . . . . . . -65^oC to 150^oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300^oC
(Lead tips only)
CAUTION: Stresses 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 sections of this specification is not implied.
NOTE:
1. θ_JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNITS
VCC SUPPLY CURRENT
Nominal Supply
Shutdown Supply
I_CC
EN = V_CC; UGATE and LGATE Open
EN = 0V
-
5
-
mA
-
50
100
µA
POWER-ON RESET
Rising V_CC Threshold
Falling V_CC Threshold
Enable - Input threshold Voltage
Rising V_OCSET Threshold
OSCILLATOR
V_OCSET = 4.5VDC
V_OCSET = 4.5VDC
V_OCSET = 4.5VDC
-
-
10.4
V
8.2
-
-
V
0.8
-
2.0
V
-
1.27
-
V
Free Running Frequency
Total Variation
Ramp Amplitude
REFERENCE
∆V_OSC
R_T = OPEN, V_CC = 12
6kΩ < R_T to GND < 200kΩ
R_T = OPEN
185
200
215
kHz
-15
-
+15
%
-
1.9
-
V_P-P
Reference Voltage
1.188 1.20 1.212
V
ERROR AMPLIFIER
DC Gain
-
88
-
dB
Gain-Bandwidth Product
GBW
-
15
-
MHz
Slew Rate
SR
COMP = 10pF
-
6
-
V/µs
GATE DRIVERS
Upper Gate Source
Upper Gate Sink
Lower Gate Source
Lower Gate Sink
PROTECTION
I_UGATE
R_UGATE
I_LGATE
R_LGATE
V_BOOT - V_PHASE = 12V, V_UGATE = 6V
I_LGATE = 0.3A
V_CC = 12V, V_LGATE = 6V
I_LGATE = 0.3A
350
500
-
mA
-
5.5
10
W
300
450
-
mA
-
3.5
6.5
W
OCSET Current Source
Soft Start Current
PGOOD DELAY
I_OCSET
I_SS
V_OCSET = 4.5VDC
170
200
230
µA
-
10
-
µA
Discharge Current Source
5.5
10
14.5
µA
NMOS gate threshold voltage
-
2
-
V
3