+5V TO
±
10V VOLTAGE CONVERTER
TCM680
ABSOLUTE MAXIMUM RATINGS*
V
IN .....................................................................................................
+6.0V
+
V
OUT ..............................................................................................
+12.0V
–
V
OUT .............................................................................................
– 12.0V
–
V
OUT
Short-Circuit Duration ............................ Continuous
+
V
OUT
Current ............................................................ 75mA
V
IN
dV/dT .............................................................. 1V/µsec
Power Dissipation (T
A
≤
70°C)
Plastic DIP ...................................................... 730mW
Small Outline .................................................. 470mW
Storage Temperature ............................ – 65°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300°C
*Stresses above those listed in "Absolute Maximum Ratings" may cause
permanent damage to the device. These are stress ratings only and
functional operation of the device at these or other conditions above those
indicated in the operation section of the specification is not implied.
Exposure to the Absolute Maximum Ratings conditions for extended
periods of time may affect device reliability.
ELECTRICAL CHARACTERISTICS:
V
IN
= +5V, T
A
= +25°C, test circuit Figure 1, unless otherwise indicated.
Symbol
Parameter
Supply Voltage Range
Supply Current
Test Conditions
MIN.
≤
T
A
≤
MAX., R
L
= 2kΩ
V
IN
= 3V, R
L
=
∞
V
IN
= 5V, R
L
=
∞
V
IN
= 5V, 0°C
≤
T
A
≤
+70°C, R
L
=
∞
V
IN
= 5V, – 40°C
≤
T
A
≤
+85°C, R
L
=
∞
–
+
I
L
= 10mA, I
L
= 0mA, V
IN
= 5V
–
+
I
L
= 5mA, I
L
= 0mA, V
IN
= 2.8V
–
+
I
L
= 10mA, I
L
= 0mA, V
IN
= 5V:
0°C
≤
T
A
≤
+70°C
– 40°C
≤
T
A
≤
+85°C
+
–
I
L
= 10mA, I
L
= 0mA, V
IN
= 5V
+
–
I
L
= 5mA, I
L
= 0mA, V
IN
= 2.8V
+
–
I
L
= 10mA, I
L
= 0mA, V
IN
= 5V:
0°C
≤
T
A
≤
+70°C
– 40°C
≤
T
A
≤
+85°C
R
L
= 2kΩ
+
V
OUT
, R
L
=
∞
–
V
OUT
, R
L
=
∞
Min
2.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
97
97
Typ
1.5 to 5.5
0.5
1
—
—
140
180
—
—
140
180
—
—
21
85
99
99
Max
5.5
1
2
2.5
3
180
250
220
250
180
250
220
250
—
—
—
—
Unit
V
mA
Negative Charge Pump Output
Source Resistance
Ω
Positive Charge Pump Output
Source Resistance
Ω
F
OSC
P
EFF
V
OUT
E
FF
Oscillator Frequency
Power Efficiency
Voltage Conversion Efficiency
kHz
%
%
TelCom Semiconductor reserves the right to make changes in the circuitry or specifications detailed in this manual at any time without notice. Minimums
and maximums are guaranteed. All other specifications are intended as guidelines only. TelCom Semiconductor assumes no responsibility for the use of
any circuits described herein and makes no representations that they are free from patent infringement.
PIN DESCRIPTION
8-Pin
DIP/SOIC Symbol
1
2
3
4
5
6
7
8
–
C
1
+
C
2
–
C
2
–
V
OUT
V
IN
Description
Input. Capacitor C1 negative terminal.
Input. Capacitor C2 positive terminal.
Input. Capacitor C2 negative terminal.
Output. Negative output voltage (–2V
IN
).
Input. Device ground.
Input. Power supply voltage.
Input. Capacitor C1 positive terminal.
Output. Positive output voltage (+2V
IN
)
C
1
4.7µF
1
2
–
C
1
+
C
2
+
8
VOUT
+
C
1
7
+
VOUT
C
2
4.7µF
6
3 C –
TCM680
V
IN
2
4
–
V OUT
GND
5
C
4
10µF
+
R
L
GND
V
IN
+
C
1
+
V
OUT
GND
C
3
10µF
–
R
L
–
VOUT
Figure 1. Test Circuit
4-14
TELCOM SEMICONDUCTOR, INC.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
