Voltage and Current Controller CYT101 FEATURES Two ored error amplifiers with built-in current generator with enable/disable function. 1.24V series voltage reference with trimmed 1% tolerance (CYT101A). 4.5 to 32V supply voltage range. 5kV ESD protection. Temperature-compensated. M SO8 D DIP8 DESCRIPTION The CYT101/CYT101A provide a pin-for-pin replacement of TSM101/A. This is an 8-pin voltage & current controller incorporates a trimmed series bandgap voltage reference, two ored error amplifiers and a current source. This IC provides a feedback to the primary side of a power supply by comparing the DC voltage and the current level at the output to an internal reference. The controlled current generator can be used to modify the level of current limitation by offsetting the information coming from the current sensing resistor. The CYT101/A can be used in every types of application requiring a precision voltage regulation and current limitation. For example, designers can save space by using this 8-pin IC for a CC/CV mode battery charger. ORDER INFORMATION ORDER CODE This circuit is designed to be used in battery chargers with a constant voltage and a limited output current. It can be used in every types of application requiring a precision voltage regulation and current limitation. Other application include voltage supervisors, over voltage protection… Temperature Range Bandgap Tolerance CYT101AM/D CYT101M/D 1% 0, +125℃ 2.5% PIN CONFIGURATION Vref 1 EN APPLICATIONS (8-Pin Plastic SOIC) (8-Pin Plastic DIP) Iref 2 + - 3 GND 4 - + 8 +Vcc 7 Vfb 6 OUTPUT 5 Ifb PIN DESCRIPTION Pin Name I/O Function 1 2 VREF EN O I 3 IREF I Trimmed Voltage Reference Output 1.24V, 10mA max. Current source enable input. This current source can be used to Offset the voltage measurement on the sense resistor and therefore to modify the charge current. The current source is enabled when the Input voltage on pin 2 is lower than 0.8V Current Limitation Reference Input 4 GND I Ground 5 IFB I 6 OUTPUT O 7 VFB I 8 VCC I Current Limitation Loop Input, connected to the sense resistor Output pin common to the voltage regulation and current limitation Loops. Inverting input of the voltage error amp, The non-inverting input is from VREF, 1.24V Power Supply Input Preliminary and all contents are subject to change without prior notice. 1 Voltage and Current Controller CYT101 ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage Value Unit 36 V IOUT Output Current 20 mA VIN Input Voltage -0.3, VCC -1.5 V IIN Input Current ±1 mA PD Power Dissipation 200 mW TJ Maximum Junction Temperature 150 ℃ Thermal Resistance Junction to Ambient 130 to 200 ℃/W Storage Temperature 0 to +125 ℃ RTHJ-A TSTG RECOMMENDED CONDITIONS Symbol Value Unit VCC Supply Voltage Parameter 4.5 to 32 V TOP Operating Free-air Temperature Range 0 to 125 ℃ ELECTRICAL CHARACTERISTICS The conditions are: TA =25℃, VCC = 15V unless otherwise stated Condition Over TOP apply over full temperature range (0 to 125℃) Parameter Symbol Test Conditions Min. Typ. Max. Unit mA V 1 2 VCC -1.5V 5 7 0 0 ERROR AMPLIFIER ICC VIN Total Supply Current Input Voltage Range VCC = 15V VIO Input Offset Voltage IIB Input Bias Current TA =25℃ Over TOP TA =25℃ Over TOP 25℃ Over TOP RL =2ΚΩ, Over TOP -5 -7 -700 -1000 65 0 @VIN = 1.2V on pin 7 and VIN = 0V on pin 5 ISINK AVO Output Sink Current, VOL = 2.5V Large Signal Voltage Gain PSRR Power Supply Rejection Ratio Over TOP CMRR GBP Common Mode Rejection Ratio Gain Bandwidth Product Over TOP -300 15 mV nA mA 8 15 VCC = 15V, F = 100kHz V/mV 90 dB 80 1 dB MHz VI = 10mV, RL = 2κΩ CL = 100pF IOH Output Leakage Current 2 7 µA 1.24 1.24 30 1.252 1.27 100 V ppm/℃ 25℃ Over TOP VOLTAGE REFERENCE VREF TCVR Reference Voltage Temperature Stability CYT101A CYT101 IOUT = 1mA Over TOP 1.227 1.21 VLR Load Regulation 1 mA< IOUT < 10mA 5 15 mV VSR Line Regulation 5V < VIN < 32V 3.5 10 mV Preliminary and all contents are subject to change without prior notice. 2 Voltage and Current Controller CYT101 ELECTRICAL CHARACTERISTICS (cont’d) The conditions are: TA =25℃, VCC = 15V unless otherwise stated Condition Over TOP apply over full temperature range (0℃ to 125℃) Symbol Parameter Test Conditions Min. Typ. Max. Unit CURRENT GENERATOR IO Current Source TCCG 1.4 mA Over TOP 500 ppm/℃ 4.5 < VCC < 32V 0.003 Temperature Stability ISR Line Regulation VEN Voltage at EN pin to have IO = 1.4mA Over TOP VIDIS Voltage at the EN pin to have IO = 0mA Over TOP IEN ILEAK Input Current on the EN pin Leakage Current Over TOP VEN =2V Over TOP 0.03 mA 0.6 V 2 V 0.5 30 2 µA µA PACKAGE MECHANICAL SO8 1 8 2 7 3 6 B N DIM D A A1 B B1 C D H E B1 5 4 A1 A E H C DIMENSIONS INCHES MM MIN MAX MIN MAX 0.0532 0.0688 0.0040 0.0098 0.0130 0.0200 0.050 BSC 0.0075 0.0098 0.1890 0.1968 0.2284 0.2440 0.1497 0.1574 1.35 1.75 0.10 0.25 0.33 0.51 1.27 BSC 0.19 0.25 4.80 5.00 5.80 6.20 3.80 4.00 PACKAGE MECHANICAL DIP8 Z e 1 8 2 7 3 6 4 5 N B DIM D b a A F I e1 b1 E L A a B b b1 D E e e1 F I L Z DIMENSIONS INCHE MM MIN MAX MIN MAX 0.131 0.020 0.045 0.065 0.014 0.022 0.008 0.012 0.430 0.313 0.384 0.100 0.300 0.260 0.200 0.125 0.150 0.060 3.32 0.51 1.15 1.65 0.356 0.55 0.204 0.304 10.92 7.95 9.75 2.54 7.62 6.60 5.08 3.18 3.81 1.52 Preliminary and all contents are subject to change without prior notice. 3