CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
TC1044S
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage ......................................................... +13V
LV, Boost and OSC Inputs
Voltage (Note 1) ......................... – 0.3V to (V
+
+ 0.3V)
for V
+
< 5.5V
(V
+
– 5.5V) to (V
+
+ 0.3V)
for V
+
> 5.5V
Current Into LV (Note 1) ...................... 20µA for V
+
> 3.5V
Output Short Duration (V
SUPPLY
≤
5.5V) ......... Continuous
Lead Temperature (Soldering, 10 sec) ................. +300°C
Package Power Dissipation (T
A
≤
70°C) (Note 2)
8-Pin CerDIP ..................................................800mW
8-Pin Plastic DIP ............................................. 730mW
8-Pin SOIC .....................................................470mW
Operating Temperature Range
C Suffix .................................................. 0°C to +70°C
I Suffix ............................................... – 25°C to +85°C
E Suffix ............................................. – 40°C to +85°C
M Suffix ........................................... – 55°C to +125°C
Storage Temperature Range ................ – 65°C to +150°C
*Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. 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.
ELECTRICAL CHARACTERISTICS:
T
A
= +25°C, V
+
= 5V, C
OSC
= 0, Test Circuit (Figure 1), unless otherwise
indicated.
Symbol
I
+
Parameter
Supply Current
Test Conditions
R
L
=
∞
0°C < T
A
< +70°C
– 40°C < T
A
< +85°C
– 55°C < T
A
< +125°C
0°C < T
A
< +70°C
– 40°C < T
A
< +85°C
– 55°C < T
A
< +125°C
Min
≤
T
A
≤
Max,
R
L
= 10 kΩ, LV Open
Min
≤
T
A
≤
Max,
R
L
= 10 kΩ, LV to GND
I
OUT
= 20mA
I
OUT
= 20mA, 0°C
≤
T
A
≤
+70°C
I
OUT
= 20mA, –40°C
≤
T
A
≤
+85°C
I
OUT
= 20mA, –55°C
≤
T
A
≤
+125°C
V
+
= 2V, I
OUT
= 3 mA, LV to GND
0°C
≤
T
A
≤
+70°C
– 55°C
≤
T
A
≤
+125°C
Pin 7 open; Pin 1 open or GND
Boost Pin = V
+
R
L
= 5 kΩ; Boost Pin Open
T
MIN
< T
A
< T
MAX
; Boost Pin Open
Boost Pin = V
+
R
L
=
∞
V
+
= 2V
V
+
= 5V
Min
—
—
—
—
—
—
—
3
1.5
—
—
—
—
—
—
—
—
96
95
—
99
—
—
Typ
80
—
—
—
—
—
—
—
—
60
70
70
105
—
—
10
45
98
97
88
99.9
1
100
Max
160
180
180
200
300
350
400
12
3.5
100
120
120
150
250
400
—
—
—
—
—
—
—
—
Unit
µA
I
+
Supply Current
(Boost Pin = V
+
)
Supply Voltage Range, High
Supply Voltage Range, Low
Output Source Resistance
µA
+
V
H2
+
V
L2
V
V
Ω
R
OUT
Ω
kHz
%
F
OSC
P
EFF
Oscillator Frequency
Power Efficiency
V
OUT
E
FF
Z
OSC
Voltage Conversion Efficiency
Oscillator Impedance
%
MΩ
kΩ
NOTES:
1. Connecting any input terminal to voltages greater than V
+
or less than GND may cause destructive latch-up. It is recommended that no
inputs from sources operating from external supplies be applied prior to "power up" of the TC1044S.
2. Derate linearly above 50°C by 5.5mW/°C.
4-44
TELCOM SEMICONDUCTOR, INC.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
