TSM114CN

TSM114 3.3V 5V ±12V Housekeeping IC ■ ■ ■ ■ ■ ■ ■ ■ ■ Over voltage and under voltage protection for 3.3V 5V and ±12V without external components Under voltage blanking function Power good input/output Externally adjustable PG delay Fault output Remote input Externally adjustable remote delay Precision voltage reference 2kV ESD protection (HBM) ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr ± b O ete l o bs N DIP-14 (Plastic Package) Description The TSM114 integrated circuit incorporates all of the sensing circuitry required to regulate and protect a multiple-output power supply (3.3V, 5V, and ±12V) from both over-voltage and under-voltage. Pin Connections (top view) The TSM114 also includes all of the necessary functions for housekeeping features, which allow for safe operation under all conditions, as well as very high system integration. 1 Fault Vcc 2 Gnd Rcrnt 13 3 PG Vs3.3 12 A precise voltage reference is also integrated in the TSM114 4 Tpg Vs-12 11 5 Rem Vs12 10 Applications 6 Trem Vs5 ■ 7 Tuv PC SMPS multiple Power Line Housekeeping IC (3.3V 5V 12V) 14 9 Bsense 8 Order Codes O Part Number TSM114IN October 2004 Temperature Range Package Packaging Marking 0 to +95°C DIP14 Tube TSM114 Revision 1 1/14 TSM114 1 Pin Descriptions Pin Descriptions Table 1: This table gives the pin description for DIP14 package Name Pin # Fault Gnd 1 2 PG 3 Tpg 4 Type Function Open collector Power supply Open collector Timing capacitor Fault output. Output of the over voltage and under voltage comparators Signal ground and silicon substrate Output of the Tpg comparator. This pin goes low upon an under voltage condition. Except for the delay set by the Tpg capacitor this pin always reflects the actual state of the under voltage sensing comparators output. A capacitor from this pin to Gnd provides a delay between outputs rail voltage within regulation and PG output going high. Capacitor discharges whenever Bsense low or Rem high or UVP is detected. Pulling this pin high will send the Fault pin high latching off the power supply, reset the internal latch, discharge the start-up timing capacitors, Tuv and Tpg capacitors, allowing normal start up of the system. Pulling this pin low will send the Fault pin low, initiating a normal start up function. A capacitor from this pin to Gnd will delay the Fault signal when the Rem pin is used to shut down the power supply. The PG will signal a power failure warming immediately, but the Fault pin shut down of the power will be delayed. A capacitor from this pin to Gnd will provide the under voltage blanking function. This capacitor is charging when the Bsense and Rem signal is in the right state. As the voltage at this pin is larger than the Vref voltage. The under voltage function resume. Non inverting input to the Bsense voltage sensing comparator. Pulling this pin lower than 2.5V will cause PG goes low and Tuv goes low. Over voltage and under voltage detection for +5V rail Over voltage and under voltage detection for +12V rail Over voltage and under voltage detection for -12V rail. Over voltage and under voltage detection for 3.3V rail. This function is disabled by connecting to Vcc A resister from this pin to Gnd will provide the internal constant current. Supply input voltage ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr b O ete l o bs Control Input pin Rem 5 Timing capacitor Trem 6 Tuv 7 Bsense 8 Vs5 Vs12 Vs-12 9 10 11 Vs3.3 12 Rcrnt Vcc 13 14 Timing capacitor 2 Control input pin Analog input Analog input Analog input Analog input Analog input Power supply Absolute Maximum Ratings Table 2: Key parameters and their absolute maximum ratings Symbol Vcc O Vpmax Vnmax VDBTT VTER PT Toper Tstg Tj ESD DC Supply Voltage DC Supply Voltage 1 Terminal voltage V12, V5, V3.3 Terminal voltage V-12 VTuv, VTpg, VTrem input voltage Other terminals Power dissipation Operational temperature Storage temperature Junction temperature Electrostatic Discharge Value Unit -0.3 to 25 V -0.3 to 25 -16 to Vref -0.3 to 3.3V -0.3 to Vcc 1 0 to 95 -55 to 150 150 2K V V V V W °C °C °C V Value Unit 4.2 to 24 V 1) All voltage values, except differential voltage are with respect to network ground terminal. Table 3: Operating Conditions Symbol Vcc 2/14 Parameter DC Supply Conditions Electrical Characteristics 3 TSM114 Electrical Characteristics Table 4: Tamb = 25°C, Vcc=5V, Vs3.3=1.3V, Vs5=5V, Vs12= 12V, Vs-12=-12V, Rem=Low, Rcrnt=24KΩ Symbol Parameter Test Condition Min Typ Max Unit 4 6 8 4.2 mA V Total Current Consumption Icc Vccmin Total Supply Current Min operating Vcc Over Voltage and Under Voltage Protection Vov12 Vuv12 Iin12 Vov5 Vuv5 Iin5 Vov3.3 Vuv3.3 Iin3.3 Over Voltage Sense 12V Under Voltage Sense 12V Input current Voltage sense 12V Over Voltage Sense 5V Under Voltage Sense 5V Input current Voltage Sense 5V Over Voltage Sense 3.3V Under Voltage Sense 3.3V Input current Voltage Sense 3.3V 13.5 8.85 100 6.01 4.00 100 1.43 1.09 -2 14 9.12 200 6.20 4.12 200 1.475 1.125 0 14.4 9.39 300 6.39 4.24 300 1.52 1.16 2 V V µA V V µA V V µA Dis3.3 Disable Voltage Sense 3.3V1 Over Voltage Sense -12V Under Voltage Sense -12V Input current Voltage sense -12V Disable Voltage Sense -12V Internal time 3.0 3.3 4.0 V -15.49 -9.99 -300 1.5 18 -15.04 -9.70 -200 2 30 -14.58 -9.39 -100 2.5 42 V V µA V µs 2.43 -1.2 225 2.50 0 250 10 3.6 2.562 V µA µA µA V V 9 2.425 1.9 2 10 2.50 2 5 11 2.575 2.1 3.3 -0.3 3.6 ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr b O ete l o bs Vov-12 Vuv-12 Iin-12 Dis-12 Tdelay Bsense Thbs Ilbs Iobs DIobsT Vbsoh Vinbs Bsense voltage threshold Bsense current leakage Current source Current source drift in temperature Clamp voltage Input voltage Bsense=3V Tmin. < Tamb < Tmax IoBsense=1µA 3.3 -0.3 275 3.9 3.3 Under Voltage Blanking (Tuv) O Iotuv THtuv TLtuv Idtuv Vtuvol Vtuvoh VinTuv DIotuv Current output source High threshold blanking Low threshold blanking Current discharge of Tuv Low output voltage Clamp voltage Input voltage Current source drift in temperature From low to high voltage From high to low voltage Tmin. < Tamb < Tmax 0.2 3.9 3.3 2 µA V V mA V V V µA Rem THrm TLrm High threshold Low threshold From Low to high From high to low 1.87 1 1.93 1.2 2.00 1.4 V V TRem current source High thresold voltage TRem Low thresold voltage TRem From low to high From high to low 9 2.425 1.9 10 2.50 2 11 2.575 2.1 µA V V TRem Iotrm THtrm TLtrm 3/14 TSM114 Electrical Characteristics Symbol Idtrm Vtrmol Vtrmoh Vintrm DIotrm Parameter Current discharge of TRem Low output voltage Clamp voltage Input voltage Current source drift in temperature Test Condition Min Typ 2 5 3.3 -0.3 3.6 Tmin. < Tamb < Tmax Max Unit 0.2 3.9 3.3 2 mA V V V µA 0.2 500 mA V nS Power Good (PG) Ipgol Vpgol Tpgr Sink current Low output voltage Rise time PG VolPg=0.2V Isink=10mA Rpg=1K 10 ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr b O ete l o bs Tpg Iotpg THtpg TLtpg Idtpg Vtpgol Vtpgoh Vintpg DIotpg Current source High threshold Low threshold Current discharge Low output voltage Clamp voltage Input voltage Current source drift in temperature From low to high From high to low 9 2.425 1.9 2 10 2.50 2 5 3.3 -0.3 3.6 Tmin. < Tamb < Tmax 11 2.575 2.1 0.2 3.9 3.3 2 µA V V mA V V V µA 0.2 mA V 2.11 V Fault Ifltol Vfltol IFault sink current Low output voltage VolFault=0.2V IsinkFault=10mA 10 Rcrnt VRcrn Output voltage 1.93 2.02 1) DisVs33 disable voltage shall be between 4V and Vcc. When using DisVs33 disable function, connected to Vcc is better. O 4/14 Electrical Characteristics TSM114 Figure 1: Application Schematic Primary Main Converter Rectification 12V 12V 5V 5V 3.3V 3.3V -12V -12V PWM+Opto. Vref ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr b O ete l o bs Vcc Vcc Auxiliary Converter 5Vstby 5Vstby PWM+Opto. Vref PG FAULT - Over & Under voltage protection - Voltage reference - Logic - Sequencer TSM114 Rem Figure 2: Internal Schematic Vcc TSM114 Vs12 Fault Vs5 OVP Logic Vs3.3 Vs-12 Secondary PG UVP HouseKeeping Bsense Rem UV Blanking O Gnd Tuv Rcrnt Trem Tpg Cuv Rcrnt Crem Cpg 5/14 TSM114 Electrical Characteristics Figure 3: Detailed Internal Schematic Rem 5 Vs12 Vs5 Vs3.3 Vs-12 10 9 12 11 Vcc 14 Vref = 2.5V 2V Vref 1.2V 3.6V 10µA Tuv DisVs-12=2V 2.5V Vref 5mA DisVs3.3=3.3V 7 CTuv ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr b O ete l o bs 2V UVP +rails UVP -rails 1.125 OVP +Rails OVP -Rails 1.475 3.6V Disable UVP-OVP 10µA Trem 6 CTrem 5mA 2.5V Vref 2V 3.6V OV+UV TDelay 1 Fault 10µA Tpg 4 CTpg 5mA 2.5V S Q R !Q 3 Vref Pg 2V Iref 3.6V 13 Vcc 250µA Bsense 2.5V 8 Vref O 6/14 Rcrnt Electrical Characteristics TSM114 Figure 4: Rem On/Off Figure 5: OVP Function Rem On/Off, Tuv start up Vcc Vcc V5 V5 OVP level UVP level Gnd Gnd V-5 V-5 Bsense Bsense ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr b O ete l o bs Rem TLrm THrm THrm TLrm Rem Tuv Tuv Tpg THtpg TLtpg TLtpg THtpg Tpg Trem TLrm TLtrm THrm Trem Fault Fault PG PG Tpg Tuv Trem Tdelay Tuv O 7/14 TSM114 Electrical Characteristics Figure 6: OVP function, Rem On/Off, Tuv start up Vcc V5 Figure 7: Vcc turn On/off, Bsense Vcc OVP level V5 UVP level UVP level Gnd Gnd V-5 V-5 ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr b O ete l o bs Bsense Bsense THrm TLrm Rem Rem Tuv Tuv Tpg TLtpg Tpg TLtrm Trem tdelay Trem tdelay Fault Fault PG PG Tuv O 8/14 Electrical Characteristics TSM114 Figure 8: Vcc turn on, OVP function, Remote On/Off Vcc Vcc OVP level V5 UVP level V5 UVP level ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr b O ete l o bs Gnd Gnd V-5 V-5 Bsense Bsense THrm TLrm Rem Rem Tuv Tuv TLtpg Tpg Tpg TLtrm Trem Trem tdelay Fault Fault PG PG O 9/14 TSM114 Electrical Characteristics Figure 9: Vcc turn On, AC line reduce/resume Bsense Vcc Vcc V5 V5 UVP level UVP level ) s ( t c u d o s) r ( P t c e u t e l rod o s P b O ete l ) o s ( s t b c u -O d o s) r ( P t e uc t e l od o s Pr b O ete l o bs Gnd Gnd V-5 V-5 Bsense Bsense Rem Rem Tuv Tuv Tpg Tpg Trem Trem Fault Fault PG PG O 10/14 Electrical Characteristics TSM114 Table 5: Truth table for OVP and UVP detection Vs12 Vs5 Vs3.3 Vs-12 Pg Uv