Datasheet TMC828, TMC829 (Microchip) - 3
| Manufacturer | Microchip |
| Description | Switched Capacitor Voltage Converters |
| Pages / Page | 26 / 3 — TCM828/TCM829. 1.0. ELECTRICAL. † Notice:. CHARACTERISTICS. Absolute … |
| File Format / Size | PDF / 368 Kb |
| Document Language | English |
TCM828/TCM829. 1.0. ELECTRICAL. † Notice:. CHARACTERISTICS. Absolute Maximum Ratings †. TCM828 only
Model Line for this Datasheet
Text Version of Document
link to page 3
TCM828/TCM829 1.0 ELECTRICAL † Notice:
Stresses above those listed under “Maximum
CHARACTERISTICS
Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those
Absolute Maximum Ratings †
indicated in the operational listings of this specification Input Voltage (V is not implied. Exposure to maximum rating conditions IN to GND) .. +30V for extended periods may affect device reliability. Output Voltage (OUT to GND) ...6.0V, +0.3V Current at OUT Pin .. 50 mA Short-Circuit Duration – OUT to GND ..Indefinite Operating Temperature Range .. -40°C to +85°C Variable Temp. Range (
TCM828 only
) ... ...-40°C to +125°C Power Dissipation (T ≤ A 70°C) .. 240 mW Storage Temperature (Unbiased)..-65°C to +150°C Lead Temperature (Soldering, 10 sec).. +300°C
ELECTRICAL CHARACTERISTICS (0°C TO +85°C) Electrical Specifications:
TA = 0°C to +85°C, VIN = +5V, C1 = C2 = 10 µF (TCM828), C1 = C2 = 3.3 µF (TCM829), unless otherwise noted. Typical values are at TA = +25°C.
Parameters Sym Min Typ Max Units Conditions
Supply Current IDD — 50 90 µA
TCM828,
TA = +25°C — 115 260 µA
TCM829
, TA = +25°C Minimum Supply V+ 1.5 — — V RLOAD = 10 kΩ, Voltage TA = 0°C to +85°C Maximum Supply V+ — — 5.5 V RLOAD = 10 kΩ Voltage Oscillator Frequency FOSC 8.4 12 15.6 kHz
TCM828,
TA = +25°C 24.5 35 45.5 kHz
TCM829
, TA = +25°C Power Efficiency PEFF — 96 — % ILOAD = 3 mA,TA = +25°C Voltage Conversion VEFF 95 99.9 — % RLOAD = ∞ Efficiency Output Resistance ROUT — 25 50 Ω IOUT = 5 mA,TA = +25°C — — 65 Ω IOUT = 5 mA,TA = 0°C to +85°C
Note 1:
Capacitor contribution is approximately 20% of the output impedance [ESR = 1/pump frequency x capacitance)].
ELECTRICAL CHARACTERISTICS (-40°C TO +85°C) Electrical Specifications:
TA = -40°C to +85°C, VIN = +5V, C1 = C2 = 10 µF (TCM828), C1 = C2 = 3.3 µF (TCM829), unless otherwise noted. Typical values are at TA = +25°C.
(Note 1 ) Parameters Sym Min Typ Max Units Conditions
Supply Current IDD — — 115 µA
TCM828
— — 325 µA
TCM829
Supply Voltage Range V+ 1.5 — 5.5 V RLOAD = 10 kΩ Oscillator Frequency FOSC 6 — 15.6 kHz
TCM828
19 — 45.5 kHz
TCM829
Output Resistance ROUT — — 65 Ω IOUT = 5 mA
Note 1:
All -40°C to +85°C specifications above are assured by design. © 2010 Microchip Technology Inc. DS21488B-page 3 Document Outline 1.0 Electrical Characteristics 2.0 Typical Characteristics FIGURE 2-1: Output Resistance vs. Supply Voltage. FIGURE 2-2: Output Resistance vs. Temperature. FIGURE 2-3: TCM828 – Output Current vs. Capacitance. FIGURE 2-4: TCM829 – Output Current vs. Capacitance. FIGURE 2-5: TCM828 – Output Voltage Ripple vs. Capacitance. FIGURE 2-6: TCM829 – Output Voltage Ripple vs. Capacitance. FIGURE 2-7: Supply Current vs. Supply Voltage. FIGURE 2-8: TCM828 – Pump Frequency vs. Temperature. FIGURE 2-9: TCM829 – Pump Frequency vs. Temperature. FIGURE 2-10: Output Voltage vs. Output Current. FIGURE 2-11: Efficiency vs. Output Current. 3.0 Pin Description TABLE 3-1: Pin Function Table 4.0 Detailed Description FIGURE 4-1: Ideal Switched Capacitor Charge Pump. 5.0 APPLICATIONS INFORMATION FIGURE 5-1: Ideal Switched Capacitor Model. FIGURE 5-2: Equivalent Output Resistance. TABLE 5-1: Output Resistance vs. C1 (ESR = 0.1W) TABLE 5-2: Output Voltage Ripple vs. C2 (ESR = 0.1W) IOUT 10mA FIGURE 5-3: Test Circuit. FIGURE 5-4: Cascading TCM828 or TCM829 Devices to Increase Output Voltage. FIGURE 5-5: Paralleling TCM828 or TCM829 Devices to Reduce Output Resistance. FIGURE 5-6: Combined Doubler and Inverter. FIGURE 5-7: High V– Load Current. 6.0 Packaging Information 6.1 Package Marking Information FIGURE 6-1: Component Taping Orientation for 5-Pin SOT-23 (EIAJ SC-74A) Devices. Corporate Office Atlanta Boston Chicago Cleveland Fax: 216-447-0643 Dallas Detroit Kokomo Toronto Fax: 852-2401-3431 Australia - Sydney China - Beijing China - Shanghai India - Bangalore Korea - Daegu Korea - Seoul Singapore Taiwan - Taipei Fax: 43-7242-2244-393 Denmark - Copenhagen France - Paris Germany - Munich Italy - Milan Spain - Madrid UK - Wokingham Worldwide Sales and Service Trademarks Worldwide Sales
TCM828/TCM829 1.0 ELECTRICAL † Notice:
Stresses above those listed under “Maximum
CHARACTERISTICS
Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those
Absolute Maximum Ratings †
indicated in the operational listings of this specification Input Voltage (V is not implied. Exposure to maximum rating conditions IN to GND) .. +30V for extended periods may affect device reliability. Output Voltage (OUT to GND) ...6.0V, +0.3V Current at OUT Pin .. 50 mA Short-Circuit Duration – OUT to GND ..Indefinite Operating Temperature Range .. -40°C to +85°C Variable Temp. Range (
TCM828 only
) ... ...-40°C to +125°C Power Dissipation (T ≤ A 70°C) .. 240 mW Storage Temperature (Unbiased)..-65°C to +150°C Lead Temperature (Soldering, 10 sec).. +300°C
ELECTRICAL CHARACTERISTICS (0°C TO +85°C) Electrical Specifications:
TA = 0°C to +85°C, VIN = +5V, C1 = C2 = 10 µF (TCM828), C1 = C2 = 3.3 µF (TCM829), unless otherwise noted. Typical values are at TA = +25°C.
Parameters Sym Min Typ Max Units Conditions
Supply Current IDD — 50 90 µA
TCM828,
TA = +25°C — 115 260 µA
TCM829
, TA = +25°C Minimum Supply V+ 1.5 — — V RLOAD = 10 kΩ, Voltage TA = 0°C to +85°C Maximum Supply V+ — — 5.5 V RLOAD = 10 kΩ Voltage Oscillator Frequency FOSC 8.4 12 15.6 kHz
TCM828,
TA = +25°C 24.5 35 45.5 kHz
TCM829
, TA = +25°C Power Efficiency PEFF — 96 — % ILOAD = 3 mA,TA = +25°C Voltage Conversion VEFF 95 99.9 — % RLOAD = ∞ Efficiency Output Resistance ROUT — 25 50 Ω IOUT = 5 mA,TA = +25°C — — 65 Ω IOUT = 5 mA,TA = 0°C to +85°C
Note 1:
Capacitor contribution is approximately 20% of the output impedance [ESR = 1/pump frequency x capacitance)].
ELECTRICAL CHARACTERISTICS (-40°C TO +85°C) Electrical Specifications:
TA = -40°C to +85°C, VIN = +5V, C1 = C2 = 10 µF (TCM828), C1 = C2 = 3.3 µF (TCM829), unless otherwise noted. Typical values are at TA = +25°C.
(Note 1 ) Parameters Sym Min Typ Max Units Conditions
Supply Current IDD — — 115 µA
TCM828
— — 325 µA
TCM829
Supply Voltage Range V+ 1.5 — 5.5 V RLOAD = 10 kΩ Oscillator Frequency FOSC 6 — 15.6 kHz
TCM828
19 — 45.5 kHz
TCM829
Output Resistance ROUT — — 65 Ω IOUT = 5 mA
Note 1:
All -40°C to +85°C specifications above are assured by design. © 2010 Microchip Technology Inc. DS21488B-page 3 Document Outline 1.0 Electrical Characteristics 2.0 Typical Characteristics FIGURE 2-1: Output Resistance vs. Supply Voltage. FIGURE 2-2: Output Resistance vs. Temperature. FIGURE 2-3: TCM828 – Output Current vs. Capacitance. FIGURE 2-4: TCM829 – Output Current vs. Capacitance. FIGURE 2-5: TCM828 – Output Voltage Ripple vs. Capacitance. FIGURE 2-6: TCM829 – Output Voltage Ripple vs. Capacitance. FIGURE 2-7: Supply Current vs. Supply Voltage. FIGURE 2-8: TCM828 – Pump Frequency vs. Temperature. FIGURE 2-9: TCM829 – Pump Frequency vs. Temperature. FIGURE 2-10: Output Voltage vs. Output Current. FIGURE 2-11: Efficiency vs. Output Current. 3.0 Pin Description TABLE 3-1: Pin Function Table 4.0 Detailed Description FIGURE 4-1: Ideal Switched Capacitor Charge Pump. 5.0 APPLICATIONS INFORMATION FIGURE 5-1: Ideal Switched Capacitor Model. FIGURE 5-2: Equivalent Output Resistance. TABLE 5-1: Output Resistance vs. C1 (ESR = 0.1W) TABLE 5-2: Output Voltage Ripple vs. C2 (ESR = 0.1W) IOUT 10mA FIGURE 5-3: Test Circuit. FIGURE 5-4: Cascading TCM828 or TCM829 Devices to Increase Output Voltage. FIGURE 5-5: Paralleling TCM828 or TCM829 Devices to Reduce Output Resistance. FIGURE 5-6: Combined Doubler and Inverter. FIGURE 5-7: High V– Load Current. 6.0 Packaging Information 6.1 Package Marking Information FIGURE 6-1: Component Taping Orientation for 5-Pin SOT-23 (EIAJ SC-74A) Devices. Corporate Office Atlanta Boston Chicago Cleveland Fax: 216-447-0643 Dallas Detroit Kokomo Toronto Fax: 852-2401-3431 Australia - Sydney China - Beijing China - Shanghai India - Bangalore Korea - Daegu Korea - Seoul Singapore Taiwan - Taipei Fax: 43-7242-2244-393 Denmark - Copenhagen France - Paris Germany - Munich Italy - Milan Spain - Madrid UK - Wokingham Worldwide Sales and Service Trademarks Worldwide Sales
