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參數(shù)資料
| 型號： | TCM850EOA |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 120 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 57K |
| 代理商： | TCM850EOA |
2
5V TO
±10V VOLTAGE CONVERTER
+B122+B124 REGULATED GaAs
FET BIAS SUPPLY
TCM850
TCM851
TCM852
TCM853
TC850/1/2/3-3 10/1/96
2001 Microchip Technology Inc.
DS21489A
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (VIN to GND) .................. – 0.3V to +10.5V
VNEGOUT to GND ...................................... – 10.5V to 0.3V
VIN to VNEGOUT ...............................................................– 0.3 to 21V
VOUT to GND** ........................................ VNEGOUT to 0.3V
SHDN or OSC (Pin 4) to GND ........ – 0.3V to (VIN + 0.3V)
Power Dissipation (TA < 70
°C)
SOIC ........................................................... 470mW
Operating Temperature Range
C Device .............................................. 0
°C to 70°C
E Device ....................................... – 40
°C to +85°C
Storage Temperature Range ................ – 65
°C to +165°C
Lead Temperature (Soldering, 10 sec) ................. +300
°C
*This is a stress ratings only and functional operation of the device at these
or any other conditions above those indicated in the operational sections of
the specifications is not implied. Exposure to Absolute Maximum Rating
Conditions for extended periods may affect device reliability.
**The output may be shorted to NEGOUT or GND if the package power
dissipation is not exceeded. Typical short circuit current to GND is 50mA.
ELECTRICAL CHARACTERISTICS: VIN between +5V and +10V; VOUT = – 4.1V; RL = Open Circuit; TA = TMIN to
TMAX unless otherwise noted. A 100kHz, 50% duty cycle square wave
between GND and VIN is applied to the OSC pin of the TCM852.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
VIN
Supply Voltage
Note 1
5
—
10
V
VOUT
Output Voltage
TCM850-TCM852: VFB = 0V (Note 3)
– 4.3
– 4.1
– 3.9
V
TCM853: VCTRL = 4.1V
– 4.2
—
– 4
Output Voltage Range
– 0.5 to – (VIN –1)
V
VFBSET
Set Voltage
TCM850-852: No Load
– 1.32
– 1.28
– 1.24
V
IQ
Supply Current
—
2
3
mA
ISHUT
Shutdown Supply Current
TCM850/853: VIN = 10V, SHDN = 0V
—
0.5
—
A
TCM851: SHDN = 2V
—
2
—
TCM852: OSC Low
—
0.5
—
VOUT Load Regulation
TCM850-TCM852: VFB = 0V (Note 3)
—
4
8
mV/mA
TCM853: VCTRL = 4.1V
—
3
8
VOUT Ripple
TCM850-TCM852
—
2
—
mVp-p
TCM853
—
1
—
fOSC
Oscillator Frequency
TCM850-TCM853: TA = 25°C (Note 2)
80
100
120
kHz
VIH
Input High Voltage
Pin 4
2
—
V
VIL
Input Low Voltage
Pin 4
—
0.5
V
IIN
Input Current
Pin 4
—
±1
A
CIN
Input Capacitance
Pin 4
—
10
—
pF
NOTES: 1. The supply voltage can drop to 4.5V, but the output is no longer guaranteed to sink 5mA at – 4.1V.
2. The TCM852 will operate with a 50kHz to 250kHz square wave of 40% to 60% duty cycle. For best performance, use an 80kHz to
120kHz square wave with 50% duty cycle.
3. IOUT = 0mA or 5mA. Reference Figures 3 and 5.
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