HA16120 RENESAS [Renesas Technology Corp], HA16120 Datasheet
HA16120
Available stocks
Related parts for HA16120
HA16120 Summary of contents
Page 1
... The HA16114P/FP/FPJ and HA16120FP/FPJ are single-channel PWM switching regulator controller ICs suitable for chopper-type DC/DC converters. Integrated totem-pole output circuits enable these ICs to drive the gate of a power MOSFET directly. The output logic of the HA16120 is designed to control a DC/DC step-up (boost) converter using an N-channel power MOS FET. The output logic of the HA16114 is designed to control a DC/DC step-down (buck) converter or inverting converter using a P-channel power MOS FET ...
Page 2
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Features • Wide supply voltage range: 3 • Maximum operating frequency: 600 kHz • Able to drive a power MOS FET (±1 A maximum peak current) by the built-in totem-pole gate pre- driver circuit • Can operate in synchronization with an external pulse signal, or with another controller IC • ...
Page 3
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Pin Arrangement GND* SYNC IN( ) IN(+) P.GND* Note: 1. Pin 1 (GND) and Pin 8 (P.GND) must be connected each other with external wire. Pin Description Pin No. Symbol Function 1 GND Signal ground SYNC 2 External sync signal input (synchronized with falling edge Oscillator timing resistor connection (bias current control) ...
Page 4
... generator OVP Triangle waveform generator 1.6 V 1.0 V Latch reset pulses 1 Bias current 1 2 SYNC GND Note: 1. The HA16120 has an AND gate. Rev.2.0, Sep.18.2003, page OFF DB ON 0.3V Latch S Q from R PWM COMP UVL V ...
Page 5
... Error amplifier output (at E/O) V HA16114 PWM IN Off pulse output (drives gate of P-channel power MOS FET HA16120 PWM IN pulse output (drives gate of N-channel Off power MOS FET Note: On duty = T Rev.2.0, Sep.18.2003, page 1.6 V typ 1.0 V typ ...
Page 6
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Guide to the Functional Description The description covers the topics indicated below. Oscillator GND* frequency control and OSC SYNC synchronization R DC/DC output voltage setting 2. C and error amplifier usage IN( ) Dead-band and E/O 3. soft-start settings IN(+) P.GND* Output stage and 4. power MOS FET driving method Note: 1 ...
Page 7
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ The oscillator frequency f can be calculated as follows. OSC OSC Here 1.1 V 1.1 V 0.8 s (comparator delay time) Since 0 OSC 0. high frequencies the comparator delay causes the sawtooth wave to overshoot the 1.6 V threshold and undershoot the 1 ...
Page 8
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ 1.2 External Synchronization These ICs have a sync input pin so that they can be synchronized to a primary-control AC/DC converter. Pulses from the secondary winding of the switching transformer should be dropped through a resistor voltage divider to the sync input pin. Synchronization takes place at the falling edge, which is optimal for multiple-output power supplies that synchronize with a flyback AC/DC converter ...
Page 9
... EA IN( ) OUT IN(+) + GND Vref Figure 2.1 Output Voltage Setting (1) 2. Negative Output Voltage (V < IN( ) IN(+) V O Figure 2.2 Output Voltage Setting (2) Rev.2.0, Sep.18.2003, page HA16120 with step-down (boost) topology IN( ) IN(+) GND + Vref Vref O ...
Page 10
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ 2.2 Error Amplifier Usage Figure 2.3 shows an equivalent circuit of the error amplifier. The error amplifier in these ICs is a simple NPN-transistor differential amplifier with a constant-current-driven output circuit. The amplifier combines a wide bandwidth (f stable feedback to be applied when the power supply is designed. Phase compensation is also easy. ...
Page 11
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ 3.2 Soft-Start Setting Soft-start avoids overshoot at power-up by widening the PWM output pulses gradually, so that the converted DC output rises slowly. Soft-start is programmed by connecting a capacitor between the DB pin and ground. The soft-start time is determined by the time constant of this capacitor and the resistors that set the voltage at the DB pin ...
Page 12
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ 4. PWM Output Circuit and Power MOSFET Driving Method These ICs have built-in totem-pole push-pull drive circuits that can drive a power MOS FET as shown in figure 4.1. The power MOS FET can be driven directly through a gate protection resistor exceeds the gate breakdown voltage of the power MOS FET additional protective measures should be IN taken, e ...
Page 13
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ 5. Voltage Reference (Vref = 2.5 V) 5.1 Voltage Reference A bandgap reference built into the IC (see figure 5.1) outputs 2.5 V ± 50 mV. The sawtooth oscillator, PWM comparator, latch, and other internal circuits are powered by this 2.5 V and an internally-generated voltage of approximately 3.2 V. The voltage reference section shut downs when the IC is turned off at the ON/OFF pin as described later, saving current when the IC is not used and when it operates in intermittent mode during overcurrent ...
Page 14
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ The relation between Vref and the ADJ pin enables Vref to be trimmed by inserting one external resistor (R ) between the Vref and ADJ pins and another (R 3 resistance ratio. Vref is then determined by the combined resistance ratio of the internal R external R and R ...
Page 15
... Keep this in mind when designing the power supply unit. When undervoltage lockout and intermittent mode are both used, the intermittent-mode time constant is shortened, so the constants of external components may have to be altered. Rev.2.0, Sep.18.2003, page µA, while the HA16120 draws a maximum 150 µA. The OFF I IN ...
Page 16
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ TM R (open) C OFF ON GND 3 2 Vref OFF ON 0 OFF ON/ Figure 6.2 Adjustment of UVL Voltages 7. Timing of Intermittent Mode during Overcurrent 7.1 Principle of Operation These ICs provide pulse-by-pulse overcurrent protection by sensing the current during each pulse and shutting off the pulse if overcurrent is detected ...
Page 17
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ 7.2 Intermittent Mode Timing Diagram ( OFF ON/ a. Continuous overcurrent is detected b. Intermittent operation starts (IC is off) c. Voltage if overcurrent ends (thick dotted line) Note the base-emitter voltage of internal transistors, and is approximately 0 (See the figure 6.1.) For details, see the overall waveform timing diagram. ...
Page 18
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ 7.4 Examples of Intermittent Mode Timing (calculated values) ( OFF ON 1 ON/ B Here, coefficient 0. duty from section 7.3 (1) previously. Example 2.2 F, OFF ON 2 and the on duty B of the current limiter is 75%, then ms. ON Figure 7.4 Examples of Intermittent Mode Timing (1) ...
Page 19
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Sawtooth wave V CT Dead band V DB Error output V E/O PWM pulse output (In case of HA16120) Power MOS FET drain current ( (dotted line shows inductor current Current limiter pin (CL Setting the Overcurrent Detection Threshold The voltage drop V at which overcurrent is detected in these ICs is typically 0 ...
Page 20
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Absolute Maximum Ratings (Ta = 25°C) Item Symbol Supply voltage V IN Output current (DC Output current (peak) I peak O Current limiter input voltage V CL Error amplifier input voltage V IEA E/O input voltage V IE/O RT source current sink current I TM SYNC voltage ...
Page 21
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Electrical Characteristics (Ta = 25° 100 kHz) IN OSC Item Symbol Voltage Output voltage Vref reference Line regulation Line section Load regulation Load Short-circuit output I current Vref overvoltage Vrovp protection threshold ∆Vref/∆Ta Temperature stability of output voltage Vref adjustment ...
Page 22
... Vref low level V TL threshold voltage ∆ Threshold VTH difference VIN high level V INH threshold voltage VIN low level V INL threshold voltage Notes: 1. HA16114 only. 2. HA16120 only. Rev.2.0, Sep.18.2003, page Min Typ Max Unit — µA — 0.5 2.0 µ µ ...
Page 23
... IC on threshold off threshold V OFF ∆V ON/OFF threshold difference Total Operating current I IN device Quiescent current I OFF Notes: 1. HA16114 only. 2. HA16120 only. × 100 External sync pulse Rev.2.0, Sep.18.2003, page Min Typ Max — 0.9 1 ...
Page 24
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Characteristic Curves Reference Voltage vs. Supply Voltage 4 3.0 2.5V 2.0 1.0 0 4.3V Supply voltage (V) Low Level Threshold Voltage of Sawtooth Wave vs. Frequency 2 2.0 T 1.5 1.0 0.5 0.0 100 200 300 400 Frequency (kHz) Rev.2.0, Sep.18.2003, page Reference Voltage vs. Ambient Temperature 2 ...
Page 25
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Oscillator Frequency Change with Ambient Temperature ( 100 kHz OSC Ambient temperature ( C) Error Amplifier Gain, Error Amplifier Phase vs. Error Amplifier Input Frequency Error amplifier input frequency f Rev.2.0, Sep.18.2003, page ...
Page 26
... HA16114 250 200 150 1000 pF L 100 Ambient temperature ( C) Note: Approximatery 300 ns greater than this in the case of the HA16120. Note 1000 pF L 300 ns max 0.3 0.4 0 Note 300 ns max 200 ns typ 0.3 V ...
Page 27
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Reference Voltage vs. IC On/Off Voltages 5 4.0 IC off voltage IC on voltage 3.0 SPEC SPEC 2.0 1.0 0.0 0 0.5 1.0 1.5 IC on/off voltage (V) Peak Output Current vs. Load Capacitance 600 500 f = 100 kHz OSC 400 300 200 100 0 0 1000 2000 ...
Page 28
... Rev.2.0, Sep.18.2003, page 100 PWM Comparator Input vs. Output Duty Cycle (2) 100 HA16120 OSC 600 kHz 40 300 kHz 20 0 1.6 1.8 0.6 0.8 1.0 Note: The on-duty of the HA16120 is the proportion of one cycle during which output is high. 50 kHz 1.2 1.4 1.6 1 (V) DB E/O ...
Page 29
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Output pin (Output Resistor) Characteristics 12 HA16114 HA16120 sink or Io source (mA) Rev.2.0, Sep.18.2003, page VGS Output high voltage (P-channel when on Power MOS FET) Output high voltage when off Output low voltage when on Output low voltage ...
Page 30
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Output Waveforms: Rise of Output Voltage OUT 5 (V) 0 400 200 (mA) 200 400 Output Waveforms: Fall of Output Voltage OUT 5 (V) 0 400 200 (mA) 200 400 Rev.2.0, Sep.18.2003, page OUT Vref DB CL ...
Page 31
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Oscillator Frequency vs. Timing Capacitance 1000 100 0 Rev.2.0, Sep.18.2003, page 10k 30k T = 100k = 300k = Timing capacitance C (pF ...
Page 32
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Application Examples (1) Rev.2.0, Sep.18.2003, page ...
Page 33
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Application Examples (2) External Synchronization with Primary-Control AC/DC Converter (1) Combination with a flyback AC/DC converter (simplified schematic) HRA83 Commer- cial AC + 1S2076A + V Error amp. IN OUT + CL(CS) Primary AC/DC converter IC (HA16107, HA17384, etc.) This is one example of a circuit that uses the features of the HA16114/120 by operating in synchronization with a flyback AC/DC converter. Note the following design points concerning the circuit from the secondary side of the transformer to the Diode D prevents reverse current ...
Page 34
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Application Examples (3) External Synchronization with Primary-Control AC/DC Converter (cont.) (2) Combination with a forward AC/DC converter (simplified schematic) DFG1C8 D Input C A HA16107, HA16666 etc. Switching transformer Coil A Primary, for main Coil B Secondary, for output Coil C Tertiary, for IC Coil D For reset This circuit illustrates the combination of the HA16114/120 with a forward AC/DC converter. The HA16114/120 synchronizes with the falling edge of the external sync signal, so with a forward transformer, the sync pulses must be inverted ...
Page 35
... Soft start IC operation status Power- Note: 1. This PWM pulse is on the step-down/inverting control channel (HA16114). The booster control channel (HA16120) output consists of alternating L and H of the IC on cycle. Rev.2.0, Sep.18.2003, page OFF 1 ...
Page 36
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Application Examples (4) (Some Pointers on Use) 1. Inductor, Power MOS FET, and Diode Connections 1. Step-up topology Applicable only HA16120 IN CL OUT GND FB 3. Inverting topology OUT GND FB 2. Turning Output On and Off while the turn only one channel off, ground the DB pin or the E/O pin ...
Page 37
... HA16114P/PJ/FP/FPJ, HA16120FP/FPJ Package Dimensions 19.20 20.00 Max 16 1 1.11 Max 2.54 ± 0.25 10.06 10.5 Max 16 1 0.80 Max 1.27 *0.42 ± 0.08 0.40 ± 0.06 *Dimension including the plating thickness Base material dimension Rev.2.0, Sep.18.2003, page 1.3 0.48 ± 0.10 0 ˚ – 15 ˚ Package Code JEDEC JEITA Mass (reference value 0.20 7.80 – 0.30 1.15 0.70 ± ...
Page 38
Sales Strategic Planning Div. Keep safety first in your circuit designs! 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble ...