Absolute Maximum Ratings
VMAX
VMIN
-0.3V
-0.3V
ISOURCE
N/A
ISINK
Pin Symbol
VCC1
Pin Name
IC Logic and Low Side Driver Power Input
IC High Side Drivers Power Input
16V
16V
1.5A Peak
200mA DC
3A Peak
400mA DC
5mA
VCC2
N/A
COMP1, COMP2
Compensation Pins for the VCORE
and VI/O error amplifiers.
6V
-0.3V
1mA
1mA
1mA
V
FB1, VOUT1, VID0-4, VCORE Voltage Feedback Input Pin,
VOUT2, VFB2, VFFB1
,
VCORE Output Voltage Sense Pin,
VFFB2
Voltage ID DAC Input Pins, VI/O Output Voltage
Sense Pin, VI/O Voltage Feedback Input Pin,
6V
-0.3V
1mA
V
CORE PWM comparator Fast Feedback Pin, VI/O
PWM comparator Fast Feedback Pin.
COFF1, COFF2
Off-Time Pins for the VCORE and VI/O regulators
6V
-0.3V
-0.3V
50mA
GATE(H), GATE
High-Side FET Drivers for the VCORE
and VI/O regulators.
16V
1.5A Peak
200mA DC
1.5A Peak
200mA DC
GATE(L)
PWRGD
OVP
Low-Side FET Driver
Power-Good Output
Overvoltage Protection
Power Ground
16V
6V
-0.3V
-0.3V
-0.3V
0V
1.5A Peak
200mA DC
1mA
1.5A Peak
200mA DC
30mA
15V
0V
30mA
1mA
N/A
PGnd
3A Peak
400mA DC
LGnd
Logic Ground
0V
0V
40mA
N/A
Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 125¡C
Lead Temperature Soldering:
Reflow (SMD styles only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 sec max. above 183ûC, 230ûC Peak
Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 150ûC
ESD Susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
23,24,1,2,3
VIDO Ð VID4
Voltage ID DAC inputs. These pins are internally pulled up to 5.65V if
left open. VID4 selects the DAC range. When VID4 is high (logic one),
the Error Amp reference range is 2.125V to 3.525V with 100mV incre-
ments. When VID4 is low (logic zero), the Error amp reference voltage
is 1.325V to 2.075V with 50mV increments.
20
VCC1
Input power supply pin for the internal circuitry, and low side gate
driver. Decouple with filter capacitor to PGnd.
17
18
19
16
GATE(H)
PGnd
GATE(L)
VCC2
High side switch FET driver pin for VCORE section.
Power ground for VCORE and VI/O section.
Low side synchronous FET driver pin.
Input power supply pin for on-board high side gate drivers. Decouple
with filter capacitor to PGnd.
15
21
GATE
OVP
High side switch FET driver pin for VI/O section.
Overvoltage protection pin. Goes high when overvoltage condition is
detected on VFB1
.
22
PWRGD
Power-Good Output. Open collector output drives low when VFB1 is
out of regulation.
2
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
