TCM680
DS21486C-page 2
2005 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings
VIN .......................................................................+5.8V
VOUT
+ ................................................................ +11.6V
VOUT
– .................................................................-11.6V
VOUT
+ Short-Circuit Duration...................... Continuous
VOUT
+ Current ....................................................75 mA
VIN dV/dT ....................................................... 1 V/sec
Power Dissipation (TA ≤ 70°C)
8-Pin PDIP ..............................................730 mW
8-Pin SOIC ..............................................470 mW
Operating Temperature Range............. -40°C to +85°C
Storage Temperature Range ..............-65°C to +150°C
Maximum Junction Temperature ...................... +150°C
Notice: Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operation listings of this specification is
not implied. Exposure to maximum rating conditions for
extended periods may affect device reliability
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, VIN = +5V, TA = +25°C, refer to Figure 1-1. Parameters
Sym
Min
Typ
Max
Units
Conditions
Supply Voltage Range
VIN
2.0
—
5.5
V
-40°C
≤ TA ≤ +85°C, RL = 2 kΩ
Supply Current
IIN
—0.5
1.0
mA
VIN = 3V, RL = ∞
—1.0
2.0
VIN = 5V, RL = ∞
——
2.5
VIN = 5V, 0°C ≤ TA ≤ +70°C, RL = ∞
——
3.0
VIN = 5V, -40°C ≤ TA ≤ +85°C, RL = ∞
Negative Charge Pump Output
Source Resistance
ROUT
-
—
140
180
Ω
IL
– = 10 mA, I
L
+ = 0 mA, V
IN = 5V
—
180
250
IL
– = 5 mA, I
L
+ = 0 mA, V
IN = 2.8V
—
220
250
—
0°C
≤ TA ≤ + 70°C
-40°C
≤ TA ≤ + 85°C
IL
– = 10 mA, I
L
+ = 0 mA, V
IN = 5V
Positive Charge Pump Output
Source Resistance
ROUT
+
140
180
Ω
IL
+= 10 mA, I
L
– = 0 mA, V
IN = 5V
—
180
250
IL
+= 5 mA, I
L
– = 0 mA, V
IN = 2.8V
—
220
250
—
0°C
≤ TA ≤ + 70°C
-40°C
≤ TA ≤ + 85°C
IL
+ = 10 mA, I
L
– = 0 mA, V
IN = 5V
Oscillator Frequency
FOSC
—21
—
kHz
Power Efficiency
PEFF
—85
—
%
RL = 2 kΩ
Voltage Conversion Efficiency
VOUTEFF
97
99
—
%
VOUT
+, R
L = ∞
97
99
—
VOUT
–, R
L = ∞