CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
TC1044S
Package Power Dissipation (TA ≤ 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
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 (VSUPPLY ≤ 5.5V) ......... Continuous
Lead Temperature (Soldering, 10 sec) ................. +300°C
*Static-sensitivedevice.Unuseddevicesmustbestoredinconductivematerial.Protectdevicesfromstaticdischargeandstaticfields.Stressesabovethose
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: TA = +25°C, V+ = 5V, COSC = 0, Test Circuit (Figure 1), unless otherwise
indicated.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
I+
Supply Current
RL = ∞
—
—
—
—
80
—
—
—
160
180
180
200
µA
0°C < TA < +70°C
– 40°C < TA < +85°C
– 55°C < TA < +125°C
I+
Supply Current
(Boost Pin = V+)
0°C < TA < +70°C
– 40°C < TA < +85°C
– 55°C < TA < +125°C
—
—
—
—
—
—
300
350
400
µA
VH+2
Supply Voltage Range, High
Supply Voltage Range, Low
Output Source Resistance
Min ≤ TA ≤ Max,
RL = 10 kΩ, LV Open
3
—
12
V
V
Ω
VL+2
Min ≤ TA ≤ Max,
RL = 10 kΩ, LV to GND
1.5
—
3.5
ROUT
IOUT = 20mA
—
—
—
—
60
70
70
100
120
120
150
I
OUT = 20mA, 0°C ≤ TA ≤ +70°C
IOUT = 20mA, –40°C ≤ TA ≤ +85°C
IOUT = 20mA, –55°C ≤ TA ≤ +125°C
105
V+ = 2V, IOUT = 3 mA, LV to GND
0°C ≤ TA ≤ +70°C
– 55°C ≤ TA ≤ +125°C
—
—
—
—
250
400
Ω
FOSC
PEFF
Oscillator Frequency
Power Efficiency
Pin 7 open; Pin 1 open or GND
Boost Pin = V+
—
—
10
45
—
—
kHz
%
RL = 5 kΩ; Boost Pin Open
TMIN < TA < TMAX; Boost Pin Open
Boost Pin = V+
96
95
—
98
97
88
—
—
—
VOUT EFF
ZOSC
Voltage Conversion Efficiency
Oscillator Impedance
RL = ∞
99
99.9
—
%
V+ = 2V
—
—
1
100
—
—
MΩ
kΩ
V+ = 5V
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 ]
