Product Summary

The SI7904DN-T1-E3 is a monolithic controller that drives a thermoelectric cooler (TEC) to stabilize the temperature of a laser diode or a passive component used in telecommunications equipment. This device relies on a negative temperature coefficient (NTC) thermistor to sense the temperature of the object attached to the TEC. The target temperature is set with an analog input voltage either from a DAC or an external resistor divider. The applications of the SI7904DN-T1-E3 include Thermoelectric Cooler (TEC) Temperature Control, Resistive Heating Element Control, Temperature Stabilization Substrate (TSS) Control.

Parametrics

SI7904DN-T1-E3 absolute maximum ratings: (1)Supply Voltage: 6 V; (2)Input Voltage: GND to VS + 0.3 V; (3)Storage Temperature Range: -65℃ to +150℃; (4)Operating Temperature Range: -40℃ to +85℃; (5)Operating Junction Temperature: 125℃; (6)Lead Temperature Range (Soldering, 10 sec): 300℃.

Features

SI7904DN-T1-E3 features: (1)High Efficiency; (2)Small Size: 5 mm × 5 mm LFCSP; (3)Low Noise: <0.5% TEC Current Ripple; (4)Long-Term Temperature Stability: ±0.01℃; (5)Temperature Lock Indication; (6)Temperature Monitoring Output; (7)Oscillator Synchronization with an External Signal; (8)Clock Phase Adjustment for Multiple Controllers; (9)Programmable Switching Frequency up to 1 MHz; (10)Thermistor Failure Alarm; (11)Maximum TEC Voltage Programmability.

Diagrams

SI7904DN-T1-E3 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
SI7904DN-T1-E3
SI7904DN-T1-E3
Vishay/Siliconix
MOSFET 20V N-CH
Data Sheet
0-1660: $0.52
1660-3000: $0.51
3000-6000: $0.50
6000-12000: $0.49
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
SI7900AEDN-T1-GE3
SI7900AEDN-T1-GE3
Vishay/Siliconix
MOSFET 20V 8.5A 3.1W 26mohm @ 4.5V
Data Sheet
0-1830: $0.34
1830-3000: $0.27
3000-6000: $0.26
6000-12000: $0.25
SI7901EDN-T1-GE3
SI7901EDN-T1-GE3
Vishay/Siliconix
MOSFET 20V 6.3A 2.8W 48mohm @ 4.5V
Data Sheet
Negotiable 
SI7904BDN-T1-GE3
SI7904BDN-T1-GE3
Vishay/Siliconix
MOSFET Dual P-Ch 20V 30mohm @ 4.5V
Data Sheet
0-1: $0.41
1-10: $0.37
10-100: $0.34
100-250: $0.33
SI7904DN-T1-E3
SI7904DN-T1-E3
Vishay/Siliconix
MOSFET 20V N-CH
Data Sheet
0-1660: $0.52
1660-3000: $0.51
3000-6000: $0.50
6000-12000: $0.49
SI7911DN-T1-GE3
SI7911DN-T1-GE3
Vishay/Siliconix
MOSFET 20V 5.7A 2.5W 51mohm @ 4.5V
Data Sheet
0-1840: $0.37
1840-3000: $0.30
3000-6000: $0.29
6000-12000: $0.28
SI7913DN-T1-GE3
SI7913DN-T1-GE3
Vishay/Siliconix
MOSFET Dual P-Ch 20V 37mohm @ 4.5V
Data Sheet
0-1540: $0.50
1540-3000: $0.41
3000-6000: $0.32
6000-12000: $0.32