LT1510IS#TR Linear Technology, LT1510IS#TR Datasheet
LT1510IS#TR
Specifications of LT1510IS#TR
Available stocks
Related parts for LT1510IS#TR
LT1510IS#TR Summary of contents
Page 1
... The LT1510 is available in a 16-pin fused lead power SO package with a thermal resistance of 50 C/W, an 8-pin SO and a 16-pin PDIP. ® 1510 , LTC and LT are registered trademarks of Linear Technology Corporation. * NiCd and NiMH batteries require charge termination circuitry (not shown in Figure 1 0.22 F MBRM120T3 8 ...
Page 2
LT1510/LT1510 ABSOLUTE MAXIMUM Supply Voltage (V ) ............................................ 30V MAX Switch Voltage with Respect to GND ...................... – 3V Boost Pin Voltage with Respect to V Boost Pin Voltage with Respect to GND ................. – ...
Page 3
ELECTRICAL CHARACTERISTICS V = 16V 8V, V (maximum operating V CC BAT MAX PARAMETER Overall Minimum Input Operating Voltage Reverse Current from Battery (When V Is Not CC Connected Floating) SW Boost Pin Current Switch Switch ...
Page 4
LT1510/LT1510-5 ELECTRICAL CHARACTERISTICS V = 16V 8V, V (maximum operating V CC BAT MAX PARAMETER Current Amplifier (CA2) Transconductance Maximum V for Switch OFF C I Current (Out of Pin) VC Voltage Amplifier (VA), 16-Pin Only Transconductance (Note ...
Page 5
W U TYPICAL PERFORMANCE CHARACTERISTICS Efficiency of Figure 2 Circuit 100 V = 15V (EXCLUDING DISSIPATION INPUT DIODE D3 8.4V BAT 0.1 0.3 0.5 0.7 0.9 ...
Page 6
LT1510/LT1510 TYPICAL PERFORMANCE CHARACTERISTICS Switch Current vs Boost Current vs Boost Voltage 16V 38V 40 BOOST 28V 35 18V 0.2 0.4 0.6 0.8 ...
Page 7
W BLOCK DIAGRAM 0. – 1.5V GND PWM V BAT – 60k TEST CIRCUITS V C 0.047 0.65V 200kHz + OSCILLATOR SHUTDOWN – – SLOPE ...
Page 8
LT1510/LT1510-5 TEST CIRCUITS U OPERATIO The LT1510 is a current mode PWM step-down (buck) switcher. The battery DC charging current is programmed by a resistor R (or a DAC output current) at the PROG PROG pin (see Block Diagram). Amplifier ...
Page 9
U U APPLICATIONS INFORMATION capacity ceramic capacitor ( from Tokin or United Chemi-Con/MARCON, et al., and the old standby, aluminum electrolytic, which will require more microfarads to achieve adequate ripple rating. OS-CON can also be used. ...
Page 10
LT1510/LT1510 APPLICATIONS INFORMATION where R is the total resistance from PROG pin to PROG ground. For example, 1A charging current is needed. 2 465 V 2000 PROG 1 A Charging current can also be programmed ...
Page 11
U U APPLICATIONS INFORMATION of the battery, canceling part or all of the 200 A. Note that if net current is into the battery and the battery is removed, the charger output voltage will float high, to near input voltage. ...
Page 12
LT1510/LT1510 APPLICATIONS INFORMATION 0.18 INTERNAL SENSE RESISTOR LT1510 GND Figure 7. Current Comparator for Initiating Float Time-Out voltage decrease is detected as an indication of near full charge. The charging current is then reduced to a much ...
Page 13
U U APPLICATIONS INFORMATION Example 15V 8.4V BAT BIAS 012 ...
Page 14
LT1510/LT1510 APPLICATIONS INFORMATION 90 NOTE: PEAK DIE TEMPERATURE WILL BE ABOUT 10 C HIGHER THAN LEAD TEMPER- 80 ATURE AT 1.3A CHARGING CURRENT 70 2-LAYER BOARD 60 50 4-LAYER BOARD I = 1.3A 40 CHRG V = 16V ...
Page 15
... DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
Page 16
... F POT 1 F 100k V OUT 2.5V TO 15V CURRENT LIMIT LEVEL 50mA TO 1A 1510 TA01 0.386 – 0.394* (9.804 – 10.008 0.150 – 0.157** (3.810 – 3.988 1510fc LT/GP 1197 REV C 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1995 S16 0695 ...