from jitx.anchor import Anchor
from jitx.component import Component as JITXComponent
from jitx.circuit import Circuit
from jitx.landpattern import Landpattern, Pad, PadMapping
from jitx.model3d import Model3D
from jitx.net import Port
from jitx.shapes.composites import rectangle
from jitx.shapes.primitive import Arc, ArcPolyline, Circle, Polygon, Polyline, Text
from jitx.feature import Courtyard, Custom, Paste, Silkscreen, Soldermask
from jitx.symbol import Direction, Pin, Symbol, SymbolMapping
from jitxlib.parts.query_api import Capacitor, Resistor
from ..leds.KT_0603R import KT_0603R
from ..leds.KT_0603G import KT_0603G
[docs]
class RectangleSmdPad(Pad):
shape = rectangle(0.28, 0.665)
solder_mask = [Soldermask(rectangle(0.382, 0.767))]
[docs]
class RectangleSmdPad1(Pad):
shape = rectangle(0.665, 0.28)
solder_mask = [Soldermask(rectangle(0.767, 0.382))]
[docs]
class RectangleSmdPad2(Pad):
shape = rectangle(1.68, 1.68)
solder_mask = [Soldermask(rectangle(1.782, 1.782))]
[docs]
class LandpatternVQFN_16_L3_0_W3_0_P0_50_BL_EP(Landpattern):
name = "VQFN-16_L3.0-W3.0-P0.50-BL-EP"
p = {
1: RectangleSmdPad().at((-0.75, -1.4075)),
2: RectangleSmdPad().at((-0.25, -1.4075)),
3: RectangleSmdPad().at((0.25, -1.4075)),
4: RectangleSmdPad().at((0.75, -1.4075)),
5: RectangleSmdPad1().at((1.407, -0.7505)),
6: RectangleSmdPad1().at((1.407, -0.2495)),
7: RectangleSmdPad1().at((1.407, 0.2495)),
8: RectangleSmdPad1().at((1.407, 0.7505)),
9: RectangleSmdPad().at((0.75, 1.4075)),
10: RectangleSmdPad().at((0.25, 1.4075)),
11: RectangleSmdPad().at((-0.25, 1.4075)),
12: RectangleSmdPad().at((-0.75, 1.4075)),
13: RectangleSmdPad1().at((-1.407, 0.7505)),
14: RectangleSmdPad1().at((-1.407, 0.2495)),
15: RectangleSmdPad1().at((-1.407, -0.2495)),
16: RectangleSmdPad1().at((-1.407, -0.7505)),
17: RectangleSmdPad2().at((0, -0.0005)),
}
pcb_layer_reference = Silkscreen(Text(">REF", 0.5, Anchor.W).at((-0.75, 3.4966)))
pcb_layer_value = Custom(
Text(">VALUE", 0.5, Anchor.W).at((-0.75, 2.4966)), name="Fab"
)
silkscreen = [
Silkscreen(
Polyline(0.152, [(-1.576, 1.0805), (-1.576, 1.5765), (-1.08, 1.5765)])
),
Silkscreen(
Polyline(0.152, [(1.576, 1.0805), (1.576, 1.5765), (1.081, 1.5765)])
),
Silkscreen(
Polyline(0.152, [(-1.576, -1.0805), (-1.576, -1.5765), (-1.08, -1.5765)])
),
Silkscreen(
Polyline(0.152, [(1.576, -1.0805), (1.576, -1.5765), (1.081, -1.5765)])
),
Silkscreen(ArcPolyline(0.15, [Arc((-0.75, -2.0405), 0.075, 0, -360)])),
]
custom_layer = [
Custom(ArcPolyline(0.06, [Arc((-1.5, -1.5005), 0.03, 0, -360)]), name="Fab"),
Custom(ArcPolyline(0.15, [Arc((-0.75, -1.8005), 0.075, 0, -360)]), name="Fab"),
]
paste = [
Paste(
Polygon(
[
(-0.672, -0.6725),
(-0.672, 0.6715),
(0.672, 0.6715),
(0.672, -0.6725),
(-0.672, -0.6725),
]
)
),
Paste(
Polygon(
[
(-0.89, -1.7405),
(-0.89, -1.0755),
(-0.61, -1.0755),
(-0.61, -1.7405),
(-0.89, -1.7405),
]
)
),
Paste(
Polygon(
[
(-0.39, -1.7405),
(-0.39, -1.0755),
(-0.11, -1.0755),
(-0.11, -1.7405),
(-0.39, -1.7405),
]
)
),
Paste(
Polygon(
[
(0.11, -1.7405),
(0.11, -1.0755),
(0.39, -1.0755),
(0.39, -1.7405),
(0.11, -1.7405),
]
)
),
Paste(
Polygon(
[
(0.61, -1.7405),
(0.61, -1.0755),
(0.89, -1.0755),
(0.89, -1.7405),
(0.61, -1.7405),
]
)
),
Paste(
Polygon(
[
(1.74, -0.8905),
(1.74, -0.6105),
(1.075, -0.6105),
(1.075, -0.8905),
(1.74, -0.8905),
]
)
),
Paste(
Polygon(
[
(1.74, -0.3905),
(1.74, -0.1105),
(1.075, -0.1105),
(1.075, -0.3905),
(1.74, -0.3905),
]
)
),
Paste(
Polygon(
[
(1.74, 0.1095),
(1.74, 0.3895),
(1.075, 0.3895),
(1.075, 0.1095),
(1.74, 0.1095),
]
)
),
Paste(
Polygon(
[
(1.74, 0.6095),
(1.74, 0.8895),
(1.075, 0.8895),
(1.075, 0.6095),
(1.74, 0.6095),
]
)
),
Paste(
Polygon(
[
(0.61, 1.7395),
(0.61, 1.0745),
(0.89, 1.0745),
(0.89, 1.7395),
(0.61, 1.7395),
]
)
),
Paste(
Polygon(
[
(0.11, 1.7395),
(0.11, 1.0745),
(0.39, 1.0745),
(0.39, 1.7395),
(0.11, 1.7395),
]
)
),
Paste(
Polygon(
[
(-0.39, 1.7395),
(-0.39, 1.0745),
(-0.11, 1.0745),
(-0.11, 1.7395),
(-0.39, 1.7395),
]
)
),
Paste(
Polygon(
[
(-0.89, 1.7395),
(-0.89, 1.0745),
(-0.61, 1.0745),
(-0.61, 1.7395),
(-0.89, 1.7395),
]
)
),
Paste(
Polygon(
[
(-1.075, 0.6095),
(-1.075, 0.8895),
(-1.74, 0.8895),
(-1.74, 0.6095),
(-1.075, 0.6095),
]
)
),
Paste(
Polygon(
[
(-1.075, 0.1095),
(-1.075, 0.3895),
(-1.74, 0.3895),
(-1.74, 0.1095),
(-1.075, 0.1095),
]
)
),
Paste(
Polygon(
[
(-1.075, -0.3905),
(-1.075, -0.1105),
(-1.74, -0.1105),
(-1.74, -0.3905),
(-1.075, -0.3905),
]
)
),
Paste(
Polygon(
[
(-1.075, -0.8905),
(-1.075, -0.6105),
(-1.74, -0.6105),
(-1.74, -0.8905),
(-1.075, -0.8905),
]
)
),
]
courtyard = [Courtyard(rectangle(3.581, 3.582))]
model3ds = [
Model3D(
"BQ24078RGTR.stp",
position=(0.0, 0.0, 0.0),
scale=(1.0, 1.0, 1.0),
rotation=(0.0, 0.0, 0.0),
)
]
[docs]
class SymbolBQ24078RGTR(Symbol):
pin_name_size = 0.7874
pad_name_size = 0.7874
TS = Pin((-9, 6), 2, Direction.Left)
BAT0 = Pin((-9, 4), 2, Direction.Left)
BAT1 = Pin((-9, 2), 2, Direction.Left)
CE_NOT = Pin((-9, 0), 2, Direction.Left)
EN2 = Pin((-9, -2), 2, Direction.Left)
EN1 = Pin((-9, -4), 2, Direction.Left)
PGOOD_NOT = Pin((-9, -6), 2, Direction.Left)
VSS = Pin((-9, -8), 2, Direction.Left)
CHG_NOT = Pin((9, -8), 2, Direction.Right)
OUT0 = Pin((9, -6), 2, Direction.Right)
OUT1 = Pin((9, -4), 2, Direction.Right)
ILIM = Pin((9, -2), 2, Direction.Right)
IN = Pin((9, 0), 2, Direction.Right)
TMR = Pin((9, 2), 2, Direction.Right)
SYSOFF = Pin((9, 4), 2, Direction.Right)
ISET = Pin((9, 6), 2, Direction.Right)
EP = Pin((9, 8), 2, Direction.Right)
layer_reference = Text(">REF", 0.55559, Anchor.C).at((0, 10.87482))
layer_value = Text(">VALUE", 0.55559, Anchor.C).at((0, 10.08742))
draws = [rectangle(18.00004, 20.00004), Circle(radius=0.3).at((-8.00002, 9.00002))]
[docs]
class Component(JITXComponent):
"""1.5-A High Battery Voltage Li-Ion Battery Chargers with Power-Path Management IC"""
manufacturer = "Texas Instruments"
mpn = "BQ24078RGTR"
reference_designator_prefix = "U"
datasheet = "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2001031722_Texas-Instruments-BQ24078RGTR_C473396.pdf"
TS = Port()
BAT0 = Port()
BAT1 = Port()
CE_NOT = Port()
EN2 = Port()
EN1 = Port()
PGOOD_NOT = Port()
VSS = Port()
CHG_NOT = Port()
OUT0 = Port()
OUT1 = Port()
ILIM = Port()
IN = Port()
TMR = Port()
SYSOFF = Port()
ISET = Port()
EP = Port()
landpattern = LandpatternVQFN_16_L3_0_W3_0_P0_50_BL_EP()
symbol = SymbolBQ24078RGTR()
cmappings = [
SymbolMapping(
{
TS: symbol.TS,
BAT0: symbol.BAT0,
BAT1: symbol.BAT1,
CE_NOT: symbol.CE_NOT,
EN2: symbol.EN2,
EN1: symbol.EN1,
PGOOD_NOT: symbol.PGOOD_NOT,
VSS: symbol.VSS,
CHG_NOT: symbol.CHG_NOT,
OUT0: symbol.OUT0,
OUT1: symbol.OUT1,
ILIM: symbol.ILIM,
IN: symbol.IN,
TMR: symbol.TMR,
SYSOFF: symbol.SYSOFF,
ISET: symbol.ISET,
EP: symbol.EP,
}
),
PadMapping(
{
TS: landpattern.p[1],
BAT0: landpattern.p[2],
BAT1: landpattern.p[3],
CE_NOT: landpattern.p[4],
EN2: landpattern.p[5],
EN1: landpattern.p[6],
PGOOD_NOT: landpattern.p[7],
VSS: landpattern.p[8],
CHG_NOT: landpattern.p[9],
OUT0: landpattern.p[10],
OUT1: landpattern.p[11],
ILIM: landpattern.p[12],
IN: landpattern.p[13],
TMR: landpattern.p[14],
SYSOFF: landpattern.p[15],
ISET: landpattern.p[16],
EP: landpattern.p[17],
}
),
]
[docs]
class BQ24078RGTR(Circuit):
"""
BQ24078RGTR Lithium Battery Charger Module
"""
vin = Port() # Input voltage
vout = Port() # Output voltage
gnd = Port() # Ground
bat_plus = Port() # Battery positive
# Create the battery charger IC instance
bq = Component()
# Net connections for internal IC connections
nets = [
bq.OUT0 + bq.OUT1 + vout,
bq.BAT0 + bq.BAT1 + bat_plus,
bq.VSS + bq.EP + gnd, # Connect EP and VSS to GND
bq.IN + vin,
bq.SYSOFF + gnd, # SYSOFF connected to GND
]
# Input bypass capacitor (4.7µF, 16V rated)
c_in = Capacitor(
# description="Input bypass capacitor",
capacitance=4.7e-6,
rated_voltage=16.0,
).insert(bq.IN, gnd, short_trace=True)
# Output bypass capacitor (4.7µF, 16V rated)
c_out = Capacitor(
# description="Output bypass capacitor",
capacitance=4.7e-6,
rated_voltage=16.0,
).insert(bq.OUT0, gnd, short_trace=True)
# Battery bypass capacitor (4.7µF, 16V rated)
c_bat = Capacitor(
# description="Battery bypass capacitor",
capacitance=4.7e-6,
rated_voltage=16.0,
).insert(bq.BAT0, gnd, short_trace=True)
# Charge indicator LED (red, 0603)
charge_led = KT_0603R()
# Power good indicator LED (green, 0603)
good_power_led = KT_0603G()
# LED ballast resistors
r_chg_led = Resistor(
# description="Charge LED ballast resistor",
resistance=1.0e3,
case="0603",
).insert(bq.CHG_NOT, charge_led.K, short_trace=True)
r_gpw_led = Resistor(
# description="Power good LED ballast resistor",
resistance=2.0e3,
case="0603",
).insert(bq.PGOOD_NOT, good_power_led.K, short_trace=True)
# LED connections
nets.extend(
[
charge_led.A + vout,
good_power_led.A + vout,
]
)
# CE pin pulldown resistor (33Ω)
r_pd_ce = Resistor(
# description="CE pin pulldown resistor",
resistance=33.0,
case="0603",
).insert(bq.CE_NOT, gnd, short_trace=True)
# TS pin pulldown resistor (10kΩ)
r_ts = Resistor(
# description="TS pin pulldown resistor",
resistance=10.0e3,
case="0603",
).insert(bq.TS, gnd, short_trace=True)
# Current limit setting (500mA for USB limit)
r_pu_en1 = Resistor(
# description="EN1 pullup resistor",
resistance=33.0,
case="0603",
).insert(bq.EN1, bat_plus, short_trace=True)
r_pd_en2 = Resistor(
# description="EN2 pulldown resistor",
resistance=33.0,
case="0603",
).insert(bq.EN2, gnd, short_trace=True)
# Current limit resistor (1.1kΩ)
r_ilim = Resistor(
# description="Current limit resistor",
resistance=1.1e3,
case="0603",
).insert(bq.ILIM, gnd, short_trace=True)
# Charge current setting (325mA)
charge_current = 325.0e-3 # 325mA
r_chg = Resistor(
# description="Charge current setting resistor",
# resistance=closest_std_value(890.0 / charge_current, 5.0), # Calculated from datasheet formula
resistance=2700.0,
case="0603",
).insert(bq.ISET, gnd, short_trace=True)
Device: type[BQ24078RGTR] = BQ24078RGTR
