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PDF AZ34063C Data sheet ( Hoja de datos )
| Número de pieza | AZ34063C | |
| Descripción | 1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER | |
| Fabricantes | Shanghai SIM-BCD Semiconductor | |
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1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
General Description
Features
Data Sheet
AZ34063C
The AZ34063C is a monolithic switching regulator
control circuit which contains the primary functions
required for DC-DC converters. This device consists
of internal temperature compensated reference, voltage
comparator, controlled duty cycle oscillator with active
current limit circuit, driver and high current output
switch.
The AZ34063C is specifically designed as a general
DC-DC converter to be used in Step-Down, Step-Up
and Voltage-Inverting applications with a minimum
number of external components.
The AZ34063C is available in 2 packages: SOIC-8 and
DIP-8.
• Operation from 3.0V to 36V Input
• Low Standby Current
• Current Limiting
• Output Switch Current to1A
• Output Voltage Adjustable
• Operation Frequency up to 180kHz (CT=100pF)
• Precision 2% Reference
Applications
· Battery Chargers
· ADSL Modems
· Hubs
· Negative Voltage Power Supplies
SOIC-8
DIP-8
Figure 1. Package Types of AZ34063C
Jan. 2013 Rev. 1. 7
BCD Semiconductor Manufacturing Limited
1
1 page  
Data Sheet
1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063C
Electrical Characteristics
(VCC=5.0 V, TA=-40 to 85oC, unless otherwise specified.)
Parameter
OSCILLATOR
Frequency
Charge Current
Discharge Current
Discharge to Charge
Current Ratio
Symbol
Conditions
fOSC
ICHG
IDISCHG
VPIN5=0V,
TA=25oC
CT=1.0nF
CT=330pF
VCC=5.0V to 36 V, TA=25oC
VCC=5.0V to 36V, TA=25oC
IDISCHG/ICHG Pin 7 to VCC, TA=25oC
Min Typ Max Unit
30 38 45 KHz
75 88 100 KHz
30 38 45 μA
180 240 290 μA
5.2 6.5 7.5
Current Limit Sense
Voltage
VIPK(sense) ICHG=IDISCHG, TA=25oC
OUTPUT SWITCH (Note 3)
Saturation Voltage,
Dalington Connection
VCE(sat)
Saturation Voltage (Note 4)
VCE(sat)
DC Current Gain
hFE
ISW=1A, Pins 1, 8 connected,
Common Emitter
ISW=1A, RPIN8=82 Ω to VCC,
Forced β=20, Common Emitter
ISW=1A, VCE=5.0V, TA=25oC
Collector Off-State Current
COMPARATOR
Threshold Voltage
Threshold Voltage Line
Regulation
IC(off) VCE=36V
VTH
REGLINE
TA=25oC
TA=-40 to 85oC
VCC=3.0V to 36V
Input Bias Current
TOTAL DEVICE
Supply Current
IIB VIN=0V
VCC=5.0V to 36V, CT=1.0 nF,
ICC VPIN7=VCC, VPIN5 > VTH,
VPIN2=GND, other pins open
250 300 350 mV
1.0 1.3 V
0.45 0.8 V
50 75
0.01 100 μA
1.225 1.250 1.275
1.21 1.250 1.29
V
1.4 5 mV
-20 -400 nA
4 mA
Note 3: Low duty cycle pulse technique are used during test to maintain junction temperature as close to ambient temperature
as possible.
Note 4: If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (≤ 300mA) and
high driver currents (≥ 30mA), it may take up to 2.0us for it to come out of saturation. This condition will shorten the off time
at frequencies 30KHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration,
since the output switch cannot saturate. If a non-Darlington configuration is used, the following output drive condition is rec-
ommended:
Jan. 2013 Rev. 1. 7
BCD Semiconductor Manufacturing Limited
5
5 Page 
1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
Mechanical Dimensions
SOIC-8
Data Sheet
AZ34063C
Unit: mm(inch)
4.700(0.185)
5.100(0.201)
7°
1.350(0.053)
1.750(0.069)
0.320(0.013)
8°
7°
1.270(0.050)
TYP
0.100(0.004)
0.300(0.012)
0.675(0.027)
0.725(0.029)
8°
D 5.800(0.228)
6.200(0.244)
D
20:1 φ 0.800(0.031)
0.200(0.008)
1.000(0.039)
3.800(0.150)
4.000(0.157)
0°
8°
0.330(0.013)
0.510(0.020)
0.190(0.007)
0.250(0.010)
0.900(0.035)
1°
5°
R0.150(0.006)
0.450(0.017)
0.800(0.031)
Jan. 2013 Rev. 1. 7
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AZ34063C.PDF ] | |
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