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TC1682/TC1683/TC1684
DS21537C-page 2
2005 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Input Voltage (VIN to GND)....................... +6.0V, -0.3V
Output Voltage (VOUT to GND)............... -12.0V, +0.3V
Current at VOUT Pin.............................................20mA
Short-Circuit Duration VOUT to GND ..............Indefinite
Power Dissipation (TA ≤ 70°C)
8-Pin MSOP .............................................320mW
Operating Temperature Range............. -40°C to +85°C
Storage Temperature (Unbiased) .......-65°C to +150°C
*Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
TC1682/TC1683/TC1684 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA = -40°C to +85°C, VIN = +5V, C1 = C2 = 3.3μF (TC1682), C1 = C2 = 1μF (TC1683),
C1 = C2 = 0.33
μF (TC1684), SHDN = GND, Typical values are at TA = +25°C
Symbol
Parameter
Min
Typ
Max
Units
Device
Test Conditions
IDD
Supply Current
—
95
225
700
160
480
1500
μA
TC1682
TC1683
TC1684
ISHDN
Shutdown Supply Current
—
0.5
2
μA
All
SHDN = VIN = +5V
VMIN
Minimum Supply Voltage
1.8
—
V
All
RLOAD = 1kΩ
VMAX
Maximum Supply Voltage
—
5.5
V
All
RLOAD = 1kΩ
FOSC
Oscillator Frequency
8.4
24.5
65
12
35
125
15.6
45.5
170
kHz
TC1682
TC1683
TC1684
VIH
SHDN Input Logic High
1.4
—
V
All
VIN = VMIN to VMAX
VIL
SHDN Input Logic Low
—
0.4
V
All
VIN = VMIN to VMAX
VEFF
Voltage Conversion Efficiency
95
99
—
%
All
RLOAD = ∞
ROUT
Output Resistance
—
120
170
Ω
All
ILOAD = 0.5mA to 10mA (Note 1)
TWK
Wake-up Time From Shutdown Mode
—
1800
600
200
—
μsec TC1682
TC1683
TC1684
RLOAD = 2kΩ
Note
1:
Capacitor contribution is approximately 20% of the output impedance (ESR = 1/ pump frequency x capacitance).