L6918A STMicroelectronics, L6918A Datasheet - Page 7

• Manufacturer Part Number: L6918A
• Description: 5 BIT PROGRAMMABLE MULTIPHASE CONTROLLER
• Manufacturer: STMicroelectronics

L6918 (SLAVE) PIN FUNCTION (continued)
ELECTRICAL CHARACTERISTCS
(Vcc=12V±10%, TJ=0°C to 70°C unless otherwise specified)
Vcc SUPPLY CURRENT
POWER-ON
OSCILLATOR AND INHIBIT
REFERENCE AND DAC only for L6918A (MASTER)
ERROR AMPLIFIER
DIFFERENTIAL AMPLIFIER (REMOTE BUFFER) only for L6918 (SLAVE)
DIFFERENTIAL CURRENT SENSING
V
f
PROG_OUT
24
25
26
27
28
Symbol
N.
OSC,Rosc
CMRR
I
I
I
I
BOOTx
d
ISEN1
CCDR
f
I
ISEN2
INH
Vosc
OSC
I
DAC
SR
MAX
CC
,
PHASE2
UGATE2
LGATE2
BOOT2
PGND
Name
Vcc supply current
V
Boot supply current
Turn-On V
Turn-Off V
Turn-On V
Turn-Off V
Initial Accuracy
Total Accuracy
Ramp Amplitude
Maximum duty cycle
Inhibit threshold
Reference Voltage
Accuracy
VID pull-up Current
VID pull-up Voltage
DC Gain
Slew-Rate
Offset
DC Gain
Common Mode Rejection Ratio
Input Offset
Bias Current
CCDR
supply current
Channel 2 bootstrap capacitor pin. This pin supplies the high side driver. Connect through a
capacitor to the PHASE2 pin and through a diode to Vcc (cathode vs. boot).
Channel 2 high side gate driver output.
This pin is connected to the Source of the upper mosfet and provides the return path for the
high side driver of channel 2.
Channel 2 low side gate driver output.
Power ground pin. This pin is common to both sections and it must be connected through the closest
path to the low side mosfets source pins in order to reduce the noise injection into the device.
CC
CC
CCDR
CCDR
Parameter
threshold
threshold
Threshold
Threshold
LGATEx open; V
HGATEx and LGATEx open
V
HGATEx open; PHASEx to
PGND
V
V
V
V
V
OSC = OPEN
OSC = OPEN; Tj=0 C to 125 C
R
OSC = OPEN
I
VID0 to VID4 see Table1
VIDx = GND
VIDx = OPEN
COMP=10pF
FBR=1.100V to1.850V;
FBG=GND
I
SINK
LOAD
CCDR
CC
CC
CC
CCDR
CCDR
T
to GND=74k
=V
Rising; V
Falling; V
=5mA
= 0%
=V
BOOT
Rising; V
Falling; V
Test Condition
BOOT
=12V
CCDR
CCDR
=12V
CC
Description
CCDR
CC
=5V
=12V
=5V
=12V
=12V
Min.
-0.6
278
270
450
-12
7.5
0.5
7.8
6.5
4.2
4.0
0.8
3.1
45
45
-7
2
4
Typ.
0.85
300
500
7.5
4.4
4.2
10
50
80
15
40
50
3
1
9
2
5
1
-
-
L6918 L6918A
Max.
12.5
10.2
322
330
550
1.5
8.5
4.6
4.4
0.9
0.6
3.4
12
55
4
6
7
-
V/ S
Unit
kHz
kHz
kHz
V/V
mA
mA
mA
mV
mV
dB
dB
%
%
V
V
V
V
V
V
V
A
A
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