TC2682 Datasheet, PDF (2/10 Pages) Microchip Technology – Inverting Charge Pump Voltage Doublers

TC2682/TC2683/TC2684
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Input Voltage (V_IN to GND)....................... +6.0V, -0.3V
Output Voltage (V_OUT to GND)............... -12.0V, +0.3V
Current at V_OUT Pin.............................................20mA
Short-Circuit Duration V_OUT to GND ..............Indefinite
Power Dissipation (T_A ≤ 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.
TC2682/TC2683/TC2684 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: T_A = -40°C to +85°C, V_IN = +5V, C1 = C2 = 3.3µF (TC2682), C1 = C2 = 1µF(TC2683),
C1 = C2 = 0.33µF (TC2684) SHDN = GND, Typical values are at T_A = +25°C
Symbol
Parameter
Min Typ Max Units Device
Test Conditions
I_DD
Supply Current
—
95
160
µA TC2682
—
225
480
TC2683
—
700 1500
TC2684
V_MIN
V_MAX
F_OSC
Minimum Supply Voltage
Maximum Supply Voltage
Oscillator Frequency
1.8
—
—
—
8.4
12
24.5
35
65
125
—
5.5
15.6
45.5
170
V All
R_LOAD = 1kΩ
V All
R_LOAD = 1kΩ
kHz TC2682
TC2683
TC2684
V_EFF
Voltage Conversion Efficiency
95
99
—
% All
R_LOAD = ∞
R_OUT Output Resistance
—
120
170
Ω All
I_LOAD = 0.5mA to 10mA (Note 1)
Note 1: Capacitor contribution is approximately 20% of the output impedance (ESR = 1/ pump frequency x capacitance).
DS21548B-page 2
 2002 Microchip Technology Inc.