SUPER CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
TC7660S
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage ......................................................... +13V
LV, Boost, 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
Power Dissipation (TA ≤ 70°C) (Note 2)
CerDIP ............................................................800mW
Plastic DIP ......................................................730mW
SOIC ............................................................... 470mW
Operating Temperature Range
C Suffix .................................................. 0°C to +70°C
E Suffix ............................................. – 40°C to +85°C
M Suffix ........................................... – 55°C to +125°C
Storage Temperature Range ................ – 65°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300°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 perma-
nent 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 = ∞
(Boost pin OPEN or GND)
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
V+H
Supply Voltage Range, High
Min ≤ TA ≤ Max,
RL = 10 kΩ, LV Open
V+L
Supply Voltage Range, Low
Min ≤ TA ≤ Max,
RL = 10 kΩ, LV to GND
—
80
160 µA
—
—
180
—
—
180
—
—
200
—
—
300 µA
—
—
350
—
—
400
3
—
12 V
1.5
—
3.5 V
ROUT
Output Source Resistance
IOUT = 20mA
IOUT = 20mA, 0°C ≤ TA ≤ +70°C
IOUT = 20mA, – 40°C ≤ TA ≤ +85°C
IOUT = 20mA, – 55°C ≤ TA ≤ +125°C
V+ = 2V, IOUT = 3 mA, LV to GND
0°C ≤ TA ≤ +70°C
– 55°C ≤ TA ≤ +125°C
—
60
100 Ω
—
70
120
—
70
120
—
105 150
—
—
250 Ω
—
—
400
FOSC
Oscillator Frequency
Pin 7 open; Pin 1 open or GND
Boost Pin = V+
—
10
— kHz
—
45
—
PEFF
Power Efficiency
RL = 5 kΩ; Boost Pin Open
TMIN ≤ TA ≤ TMAX; Boost Pin Open
Boost Pin = V+
96
98
—%
95
98
—
—
88
—
VOUT EFF
ZOSC
Voltage Conversion Efficiency
Oscillator Impedance
RL = ∞
V+ = 2V
V+ = 5V
99 99.9 — %
—
1
— MΩ
—
100
— 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 TC7660S.
2. Derate linearly above 50°C by 5.5mW/°C.
4-70
TELCOM SEMICONDUCTOR, INC.