电源管理模块TL432
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TECHNICAL DATA
Low Voltage Adjustable Precision Shunt Regulator
PIN CONNECTIONS
CATHODE
ANODE
REFERENCE
Features
• Precise Reference Voltage to 1.24V • Guaranteed 2%, 1% , 0.5% Reference Voltage Tolerance
• Sink Current Capability, 80µA to100mA • Quick Turn-on
• Adjustable Output Voltage, V o =V REF to 15V • 0.2 Ω Typical Output Impedance • TO-92, SOT-23, SOT-89 packages.
Applications
• Linear Regulator • Adjustable Supplies
• Switching Power Supplies • Battery Charger • Instrumentation
• Computer Disk Drives
SOT-89
Ordering Information
Product Number Reference Input Voltage
Package
TL432CLF TL432CLS TO-92
TL432CS SOT-23 TL432CP 0.5%
SOT-89 TL432ALF TL432ALS TO-92
TL432AS SOT-23 TL432AP 1%
SOT-89 TL432LF TL432LS TO-92
TL432S SOT-23 TL432P 2%
SOT-89
TL432
查询供应商
Block Diagram
Absolute Maximum Ratings
Symbol Parameter Symbol Rating Unit
Pad # Description
V KA Cathode voltage
V KA 18 V 1 REF I K
Continuous cathode current
range
I K 100 mA 2 ANODE I REF Reference current range
I REF 3 mA 3 CATHODE
Tj
Operating Junction
Temperature Range Tj
- 40 to 150
°C
Electrical Characteristics Ta= 25°C (unless otherwise noted)
TL432
Symbol Parameter Test Conditions
Min Typ Max
Unit
V RFF Reference voltage V KA=V REF,l K=10mA (Fig. 1)
T A =25°C
TL432 (2%)
TL432-A (1%)
TL432-C (0.5%)
1.216
1.228
1.234
1.240
1.240
1.240
1.264
1.252
1.246
V
V DEV V REF Temp Deviation T A=full range (see Note1)
V KA=V REF,l K=10mA (Fig. 1)
10 25 mV
∆V REF/∆V KA Ratio of Change in V REF to
Change in Cathode
Voltage
!K=10mA, V KA=15V to V REF
(Fig. 2)
-1 -2.7 mV / V
I REF Reference Input Current I K=10mA, R1 =10kΩ R2=∞
(Fig.2)
0.5 1.0 µA
I REF(DEV)I REF Temp Deviation T K=full range (see Note 1),
R1 =10kΩ, R2=∞, I K=10mA
(Fig. 2)
0.05 0.3 µA
Ik(off) Off-state cathode current V REF=0 V,(Fig.3)
V k=15V
0.04 0.5 µA
Zka Dynamic Output
Impedance
V ka=V ref, I k=1mA to 100mA
F ≤1kHz (Fig. 1)
0.2 0.4 Ω
I K(MIN) Minimum Operating
Current
V KA=V REF(Fig. 1) 60 80 µA
Notes: 1. Full temperature range is -40°C to 105°C for TL432
Package Dimensions TO-92