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NCV78763 Datasheet(PDF) 7 Page - ON Semiconductor

Part # NCV78763
Description  Power Ballast and Dual LED Driver
Download  48 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCV78763 Datasheet(HTML) 7 Page - ON Semiconductor

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Table 4. THERMAL RESISTANCE
Characteristic
Package
Symbol
Value
Unit
Thermal resistance package to Exposed Pad (Note 14)
SSOP36−EP
qJcbot
3.5
°C/W
Thermal resistance package to Exposed Pad (Note 14)
QFN32 7x7
qJcbot
3.4
°C/W
Thermal resistance package to Exposed Pad (Note 14)
QFN32 5x5
qJcbot
3.4
°C/W
14. Includes also typical solder thickness under the Exposed Pad (EP).
ELECTRICAL CHARACTERISTICS NOTE: Unless differently specified, all device Min and Max parameters boundaries are
given for the full supply operating ranges and junction temperature (TJP) range (−40°C; +150°C).
Table 5. VBB: BATTERY SUPPLY INPUT
Characteristic
Symbol
Conditions
Min
Typ
Max
Unit
Nominal Operating
Supply Range
VBB
5
40
V
Device Current
Consumption
IBB_0
buck regulators off, gate drive off, outputs unloaded
8
mA
Table 6. VDRIVE: SUPPLY FOR BOOSTER MOSFET GATE DRIVE CIRCUIT
Characteristic
Symbol
Conditions
Min
Typ
Max
Unit
VDRIVE reg. voltage
from VBB (Note 15)
VDRV_BB_15
VBB − VDRIVE > 1.65 V
@IDRIVE = 25 mA
VDRIVE_ SETPOINT[3:0] =
1111
9.7
10.1
10.7
V
VDRV_BB_00
VBB − VDRIVE > 1.65 V
@IDRIVE = 25 mA
VDRIVE_ SETPOINT[3:0] =
0000
4.8
5
5.3
V
VDRIVE from VBB
increase per code
(Note 15)
DVDRV_BB
Linear increase, 4Bits
0.34
V
VDRIVE reg. voltage
from VBOOST
(Note 15)
VDRV_BST_15
VBOOST − VDRIVE > 3 V
@IDRIVE = 40 mA
VDRIVE_SETPOINT[3:0] =
1111
9.5
10.1
10.7
V
VDRV_BST_00
VBOOST − VDRIVE > 3 V
@IDRIVE = 40 mA
VDRIVE_SETPOINT[3:0] =
0000
4.7
5
5.3
V
VDRIVE from
VBOOST increase per
code (Note 15)
DVDRV_BST
Linear increase, 4 Bits
0.34
V
VDRIVE Output
current limitation from
VBB input
VDRV_BB_IL
40
400
mA
VDRIVE Output
current limitation from
VBOOST input
VDRV_BB_IL
40
200
mA
VDRIVE decoupling
capacitor
CVDRIVE
470
nF
VDRIVE decoupling
capacitor ESR
CVDRIVE_ESR
100
m
W
15. The VDRIVE voltage setpoint is in the same range if the current is either provided by VBB or VBOOST pin. The voltage headroom between
VBB and VDRIVE or VDRIVE and VBOOST needs to be sufficient. For what concerns VDRIVE from VBB, in case of 25 mA current, the
worst case headroom is 1.65V. The VBOOST_AUX regulator can be enabled by SPI (bit VDRIVE_BST_EN[0]).


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